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DOI: 10.3102/003465430298563
Learner-Centered Teacher-Student Relationships Are Effective: A Meta-AnalysisMissouri State University
Person-centered education is a counseling-originated, educational psychology model, overripe for meta-analysis, that posits that positive teacher-student relationships are associated with optimal, holistic learning. It includes classical, humanistic education and todays constructivist learner-centered model. The author reviewed about 1,000 articles to synthesize 119 studies from 1948 to 2004 with 1,450 findings and 355,325 students. The meta-analysis design followed Mackay, Barkham, Rees, and Stiless guidelines, including comprehensive search mechanisms, accuracy and bias control, and primary study validity assessment. Variables coded included 9 independent and 18 dependent variables and 39 moderators. The results showed that correlations had wide variation. Mean correlations (r= .31) were above average compared with other educational innovations for cognitive and especially affective and behavioral outcomes. Methodological and sample features accounted for some of the variability.
Key Words: person centered learner centered instructional relationships meta-analysis constructivist humanistic The literature is missing a meta-analysis of classical person-centered education, the learner-centered model, or teacher-student relationships. Theoretically, the classical and learner-centered models come from somewhat different traditions (humanistic and constructivist, respectively) and decades (the 1950s through the 1970s and the 1990s through the 2000s, respectively), and the learner-centered model includes more of a focus on student variables and learning processes as critical to positive student outcomes (American Psychological Association, 1997; Lambert & McCombs, 1998). However, when operationalized, the two models are remarkably similar in their teacher-student relational variables. The classical approach emphasizes teacher empathy (understanding), unconditional positive regard (warmth), genuineness (self-awareness), nondirectivity (student-initiated and student-regulated activities) and the encouragement of critical thinking (as opposed to traditional memory emphasis). Carl Rogers was the founder of nondirective and client-centered therapy and influenced its spread as the person-centered approach to interpersonal relations, nursing, organizational functioning, and education (Cornelius-White & Cornelius-White, 2004; Rogers, Cornelius-White Cornelius-White, & Cornelius-White, 2005). Freedom to Learn, in its three editions (Rogers, 1969, 1983; Rogers & Freiberg, 1994), is perhaps the best known presentation of the theory, though it was originally presented in Rogerss (1951) Client-Centered Therapy. Rogerss theory of education has as its goal the facilitation of the whole and fully functioning person, who is a citizen and leader in a democratic society. Rogers (1969) saw the facilitation of citizens as vital, without which education will "doom us to a deserved and universal destruction" (p. 125). Elsewhere, I have summarized as follows: Rogers saw "the facilitation of learning as the function which may hold constructive, tentative, changing, process answers to some of the deepest perplexities which beset man today" (p. 105). It was likely these perplexities that lead Rogers to facilitate international cross-cultural workshops [in the process garnering a Nobel Peace Prize nomination and] encouraging a revolutionary educational style for real world problems both in the classroom and at the diplomatic table (Rogers & Russell, 2002). Rogers (1969) was broad in his intentions: "Learning becomes life" (p. 115). (Cornelius-White, 2006b, p. 8) This goal includes the fostering of the development of those who "take self-initiated action, . . . are capable of intelligent choice and self-direction, . . . are critical learners, . . . have acquired knowledge, . . . adapt flexibly, . . . utilize all pertinent experience freely and creatively, . . . cooperate effectively, . . . [and] work . . . in terms of their own socialized purposes" (Rogers, 1951, pp. 387388). Rogers (1969) held that "certain attitudinal qualities which exist in the personal relationship between the facilitator and the learner" yield significant learning (p. 106). Facilitation requires at least an initial genuine trust in learners by the facilitator, followed by the creation of an acceptant and empathic climate. Acceptance is "prizing," "non-possessive caring," and the "operational expression of his essential confidence and trust in the capacity of the human organism" (p. 109). The perception of care by the student is emphasized. Empathy is "the attitude of standing in the others shoes, of viewing the world through the students eyes, [which] is almost unheard of in a classroom" (p. 112). Classical person-centered education also includes facilitator flexibility in teaching methods; transparent compromise with learners, school administrations, the public, and the teachers own self; collaborative and student-self evaluation; and the provision of human and learning resources. Seeking and embracing a willingness to be changed are hallmarks of students and facilitators within the person-centered framework. Activities include but are not limited to solving relevant and real problems, providing resources, using contracts for planning and evaluation, forming learning groups, programmed instruction adapted to individual needs, encounter groups, using the community, and peer tutoring. Rogers summarized the theory: "Within the limitations which are imposed by circumstance and authority, or are imposed by the instructor as necessary for his own psychological comfort, an atmosphere of permissiveness, of acceptance, or reliance upon student responsibility, is created" (p. 397). Patterson (1973), Combs (1962), Axline (1947), and others have also contributed significantly to the theoretical formulations. Aspy, Roebuck, Carkhuff, and colleagues were the most prolific American researchers, while Tausch, Tausch, and colleagues were the most prolific European researchers (Rogers, 1983). The learner-centered model refers to a "perspective that couples a focus on individual learners . . . with a focus on learning" (McCombs & Whisler, 1997, p. 9). It is rooted in the American Psychological Associations (1997) 14 learner-centered principles, which are summarized by the four domains of metacognitive and cognitive, affective and motivational, developmental and social, and individual differences factors. An emphasis on quality teacher-student relationships has been further advocated by McCombs (2003b, 2004a, 2004b) and colleagues (McCombs & Whisler, 1997). The current synthesis focuses on these teacher relational variables and treats student and learning variables as outcomes that are facilitated by these relational practices. These relational practices include teachers honoring of students voices, adapting to individual and cultural differences, encouraging learning, thinking, and having learner-centered beliefs. The learner-centered model uses research that sees learning as non-linear, recursive, continuous, complex, relational, and natural in humans. . . . Learning is enhanced in contexts where learners have supportive relationships, have a sense of ownership and control over the learning process, and can learn with and from each other in safe and trusting learning environments. (McCombs, 2004a, p. 7) Developmental, feminist, and multicultural models also drive current research on teacher-student relationships, such as that by Pianta, Midgley, and Wentzel. Attachment theories (e.g. Bowlby, 1969; Stern, 1977) are influential on teacher-student relationship research and originate from perspectives on mother-child relationships. Attachment research emphasizes the long-lasting and personality-forming nature of relationships. Secure and reciprocal attachments are important for students to engage in their relationships with teachers, peers, and subject matter and develop healthy self-concepts and senses of well-being. Feminist and multicultural theories (e.g. Gilligan, 1982, Noddings, 1984, 2003; Walker, 2004) assert that children, women, and men exist only in relationships. Dominant culture, characterized by White, heterosexual, male leadership, underemphasizes relationships and overemphasizes separation, which is seen as the primary source of suffering and developmental problems. Positive interdependence is characteristic of this view and is somewhat similar to that found in Johnson and Johnsons (2001) theory of cooperative learning. This perspective that persons only exist in, and in fact are, relationships is also found in contemporary person-centered theory (e.g. Cornelius-White, in press; Schmid, 2001). However, perhaps more compelling than either the classical or current models are the voices from inside schools themselves. Poplin and Weeres (1994) reported a powerful qualitative study investigating the question "What is the problem with schooling?" and involving participants in four multiethnic school districts in California from every aspect of school life (students, teachers, cafeteria workers, security guards, parents, and administrators). The number one problem identified was relationships. They wrote, Participants feel the crisis inside schools is directly related to human relationships. Most often mentioned were relationships between teachers and students. Where positive things about schools are noted, they usually involve reports of individuals who care, listen, understand, respect others and are honest, open, and sensitive. (p. 12) They continued, "Students desire authentic relationships where they are trusted, given responsibility, spoken to honestly and warmly, and treated with dignity" (p. 20). The present study synthesized these traditions correlational and causal associations between teacher-student relationships and affective or behavioral and cognitive student outcomes. It also included studies that did not research either whole model but looked at select variables, which are emphasized in either or both models, most frequently warmth or care (e.g., Noddings, 1984, 2003; Thayer-Bacon & Bacon, 1998; Voelkl, 1995). The study aimed to answer the following questions:
The background and methods of this meta-analysis have been articulated in more depth in Cornelius-White (2006a, 2006b); Cornelius-White and Brown (2006); Cornelius-White and Cornelius-White (2005); Cornelius-White and Godfrey (2004); Cornelius-White and Harbaugh (in press); and Cornelius-White, Hoey, Cornelius-White, Motschnig-Pitrik, and Figl (2004). The synthesis was designed to satisfy all of the eight criteria Mackay, Barkham, Rees, and Stiles (2003) used to appraise the quality of 255 syntheses, only 11% of which met all eight criteria. They included clear questions, a comprehensive search for primary studies, inclusion criteria, the validity of primary studies, accuracy and bias control, the analysis of variation in findings, the appropriate combination of findings, and adequately supported conclusions.
Procedures In addition to the 9 independent variables, there were 18 dependent variables: 9 cognitive and 9 affective or behavioral. Cognitive dependent variables included achievement batteries, grades/retention, perceived achievement, verbal achievement, math, science, social science, IQ, and creative/critical thinking. Affective or behavioral dependent variables included student participation/initiation, positive motivation, self-esteem/mental health, social connection, attendance/absences, global satisfaction, disruptive behavior, negative motivation, and drop-out prevention. There were 39 moderator variables: 16 concerned with sample qualities, 19 with methodological features, and 5 with publishing. Moderator variables are those that might potentially alter the size of the relationships between independent and dependent variables. A moderating effect was noted when studies showed that differences (e.g., in gender) on a moderator were associated with significant differences in the size of the relationship between independent and dependent variables. For example, teacher care (an independent variable) appeared to be more associated with student learning (a dependent variable) when demonstrated by a female (a moderator variable) teacher than a male teacher. Six moderators were concerned with the students, 5 with teachers, and 5 with the whole sample. Of the 19 methodological modifiers, 5 concerned the nature of the independent variables, 5 that of the cognitive dependent variables, and 6 that of the affective or behavioral variables; 3 were general. Table 1 includes specific coded features of studies.
I determined that correlation was the conservative and most appropriate primary statistic to represent the findings. MetaStat 1.5, coauthored by Gene V. Glass (the originator of meta-analysis), was released 1 month before the commencement of the meta-analysis, ensuring a reasonably up-to-date statistical package for calculating, estimating, correcting, and combining correlations. I also consulted Robert Elliot (2002), author of a recent meta-analysis of person-centered therapy, and John Hattie (1999), a renowned synthesizer of all educational innovations on technical questions. This meta-analysis aimed for a broad and descriptive picture of this research area. Nevertheless, for greater inferential accuracy, I used the reliabilities of independent and dependent variables to correct correlations. Each correlation was corrected, or adjusted for attenuation, using the standard formula of the unadjusted correlation divided by the square root of the product of the reliabilities of the independent and dependent variables. This may be expressed as ra = ru/ (rxx x ryy), where ra is the adjusted correlation, ru is the unadjusted correlation, and rxx and ryy are the reliabilities of the independent and dependent variables, respectively. This procedure offers a better estimate of the true correlation when the artifacts of reliabilities are considered in their effect on the unadjusted correlations. I acknowledge that tests of the homogeneity of variance underrepresent transcriptional, computational, and other errors in the service of assessing sampling error for moderator analysis (Hunter & Schmidt, 2004), and hence I do not report tests of homogeneity. The design of increasing levels of specificity (overall, categories, and subcategories) does give more detailed descriptions of the many distinct relational and outcome variables that were included in the meta-analysis, even though heterogeneity was assumed to be the norm. I analyzed the results at both the study and finding levels. The study level was calculated by taking the mean of all findings from each study, a method that tends to conservatively estimate the overall relationship found from each study (Hunter & Schmidt, 2004). The finding level uses each separate findings, regardless of how many came from each study, thereby not keeping the assumption of independence. However, finding-level analysis provides a larger sample, allows the analysis of separate independent and dependent variables, and is used more frequently in syntheses. Hence, it was used to address the research questions when not otherwise noted, with the exception of sample moderator analysis.
Participants
Measures
The results are organized according to the six research questions.
What Is the Degree of Association Between All Person-Centered Teacher Variables and All Student Outcomes Combined?
What Is the Degree of Association Between Positive Teacher-Student Relationships and Positive Student Outcomes? When only positive teacher-student relationships (including composites of multiple person-centered variables) were examined, the mean correlation was r = .31 (SD = .28). The corrected correlation was r = .36 (SD = .32). The 95% confidence interval was r = .33 to r = .39.
What Is the Degree of Association Between Submodels of Person-Centered Education and Student Outcomes?
What Are the Degrees of Association Between Individual Person-Centered Teacher Variables and Positive Student Outcomes?
How Much Are Person-Centered Teacher Variables Associated With Cognitive Versus Affective or Behavioral Outcomes? The overall corrected correlation between person-centered teacher variables and cognitive student outcomes was r = .31 (SD = .25). Figure 3 shows the average corrected correlations for each of the nine cognitive dependent variables. The highest correlations between person-centered teacher variables and specific positive cognitive outcomes were for critical/creative thinking (r = .45), math achievement (r = .36), and verbal achievement (r = .34). IQ (r = .27), grades (r = .25), and perceived achievement (r = .21) had moderate relationships. Science (r = .17), achievement batteries (r = .16), and social science (r = .13) outcomes showed smaller relationships to person-centered teacher variables.
The overall corrected correlation between person-centered teacher variables and affective or behavioral student outcomes was r = .35 (SD = .20). Figure 4 shows the average corrected correlations for each of the nine affective or behavioral dependent variables. The highest correlations were found for participation (r = .55), student satisfaction (r = .44), drop-out prevention (r = .35), self-efficacy/mental health (r = .35), positive motivation (r = .32), and social connection/skills (r = .32). The reduction of disruptive behavior (r = .25) and attendance (r = .25) showed moderate correlations. The reduction of negative motivation (effort/work avoidance) showed a negligible relationship (r = .06).
What Moderators May Account for the Variability of Correlations Between Person-Centered Teacher Variables and Positive Student Outcomes? Most moderator variables did not show differing associations between person-centered teacher variables and positive student outcomes. Study quality was rated in two ways to assess its potential effects on the strength of the findings. The first broad categorization was whether an experiment was controlled or not. The average correlation for the controlled experiments was r = .33 (based on 635 findings), while the average correlation for those studies of lesser quality was r = .30 (based on 814 findings). The second categorization was on the Scientific Methods Score. Table 3 lists the number of findings per Scientific Methods Score category and the average corrected correlations for each. The highest quality studies showed the largest average corrected correlation (r = .37), though the relationship between study quality and correlation size did not appear linear.
Methodological features with larger differences included whether a pretest was used for control and the perspective used to measure independent variables. Some studies tested students IQs or achievement standing prior to exposure to independent variables to statistically control for the large effects of these variables on subsequent outcomes. Because aptitude and prior achievement correlate near r = .50 to .75 with subsequent achievement, researchers wanted to see the degree of correlation between person-centered relationships and student outcomes after controlling for these effects. When pretest standing was controlled, the correlation between person-centered variables and student outcomes was large (r = .46), meaning that on average, 21% of the remaining variance in student outcomes was due to person-centered relationship variables. Figure 5 shows that when observers (r = .40) and students (r = .33) perspectives were used to measure the person-centered teacher variables, substantial correlations were found. Composites of three of the perspectives (r = .27) showed a moderate correlation, and teachers own views of their behavior (r = .17) showed a smaller correlation. In contrast, for affective or behavioral outcomes, composites of the three perspectives (r = .48) and observers (r = .40) views showed large influence on the sizes of the correlations between teacher variables and student outcome. Teacher (r = .33), followed by student (r = .31), also showed substantial correlations.
Sample features that showed potential moderating effects related to study-level findings included teacher gender. Teacher gender appeared to show a significant difference, F(2, 117) = 3.251, p < .042, whereby person-centered variables with female teachers showed a larger association (r = .53) than with male teacher samples (r = .33) or mixed or nonspecified samples (r = .38). Teacher ethnicity showed significant effects, whereby person-centered teacher variables with teachers of color showed a larger association (r = .49) than with nonspecified teacher ethnicity samples (r =. 36) but not with Caucasian teacher samples (r = .45), F(2, 117) = 3.438, p < .035. Additional moderators, including sample size, student gender, ethnicity, family income, grade level or aptitude, teacher experience, year of publication, publication type, location, and community type, did not show significant effects.
Summary of Findings Overall, the meta-analysis found that person-centered teacher variables have an above-average finding-level association with positive student outcomes (r = .31), with wide variability (SD = .29). The overall corrected correlation between person-centered teacher variables and cognitive student outcomes was r = .31 (SD = .25), while the overall corrected correlation between person-centered teacher variables and affective or behavioral student outcomes was r = .35 (SD = .20). The correlation between positive teacher-student relationships and positive student outcomes (r = .36) appeared larger. Many prominent person-centered experts have argued the inseparable hypothesis, that individual facilitator conditions are not separate but merely parts of a gestalt (Bozarth, 1998; Schmid, 2003). Although empirically, the conditions can be separated and their effects in isolation can be beneficial, together, in the gestalt of a positive learner-centered teacher-student relationship, they are more effective.
Tying Findings to the Literature The effect of person-centered teaching on cognitive student outcomes offers intuitively logical results. First, the unusually high correlation (r = .45) of students critical and creative thinking (usually measured by observers as frequency of occurrence) follows from the models explicit attempts to encourage higher order thinking and respect for divergent opinions. The second finding is that basic learning (IQ, verbal, math) skills appear more associated with learner-centered teacher variables than success in more specific areas (grades, science, social science, batteries, and perceived achievement). Part of this effect may be due to a confound with the ages of participants in these comparisons, whereby all IQ studies concerned early elementary school students, and science, social science, and grades often are not tested at these earlier, more potentially influential ages. Nevertheless, grade level was not found to be an overall moderator. In terms of specific affective or behavioral outcomes, person-centered education is associated with large increases in participation/initiation (r = .55), satisfaction (r = .44), and motivation to learn (r = .32). These findings seem to indicate that students become very engaged in learner-centered classrooms. The effects on self-esteem (r = .35) and social connections and skills (r = .32) seem to indicate that students make better relationships with both themselves and others. Such prosocial outcomes are the more traditional aims of counseling, from which classical person-centered education evolved. Affective or behavioral outcomes that have become larger concerns in recent years involve the reduction of oppositional or resistant behavior. Reduction in dropout (r = .35), disruptive behavior (r = .25), and absences (r = .25) seem to be associated with a learner-centered environment. As in findings from the psychotherapy literature (Beutler, Rocco, Moleiro, & Talebi, 2001; Cornelius-White, 2003), resistance appears best dealt with by nondirectivity. Avoiding power struggles through empathy and the encouragement of self-initiated learning seems to help. However, negative motivation (r = .06) appears to be negligibly related. In other words, if students are actively not complying with school structure, increased positive relationships seem to curtail these behaviors, but if students are only passively avoiding effort, person-centered education appears to have virtually no effect. Students (like clients) who have effort-avoidance goals may continue to have them, though their curiosity and compliance with basic structures (i.e., attending and not disrupting) will likely increase. Fraser et al. (1987) found that researchers emphasized affective or behavioral outcomes less, but they have become increasingly more important to both researchers and especially the public. For example, according to the Public Agenda Foundation (1994), 71% of Americans feel that affective or behavioral education is more important than academics, especially motivation variables such as work habits and curiosity and interpersonal variables such as respect. Similarly, 88% of Americans feel that schools mission is not only to teach the three Rs but also to build productive citizens, and 78% feel that schools need good teacher and student behavior to flourish (Public Agenda Foundation, 2004). Fraser et al. also found that educational innovations are less successful in influencing affective outcomes. The overall mean was r = .11. Although affective outcomes are usually more narrowly defined than in the current meta-analysis (often meaning only motivational variables), person-centered education appears to be more efficacious (r = .35) than any educational innovation reviewed by Fraser et al. More recent research has found that for specific affective outcomes, there are significantly more effective innovations. For example, Johnson and Johnsons (2001) meta-analysis found that their Peacemaking program had an average correlation of r = .60 for reducing conflict in schools. Interestingly, Johnson and Johnsons models bear similarity to person-centered education in their emphasis on cooperation, empowerment, and respect. The inseparable hypothesis (that the variables coexist and function most effectively together) may also be supported by the analysis of submodels, which found that isolated parts appeared to be less potent than a whole model. An alternative and antithetical explanation is that researcher allegiance (the consistency between the theoretical orientation of the researchers and the theory being tested) biases the amount of differences in models tested. Elliot (2002) found that researcher allegiance accounted for as much as r = .20 in his meta-analytic comparison of humanistic and cognitive behavioral therapies. The difference in magnitude between the classical person-centered and contemporary learner-centered model mean correlation is small but becomes smaller when the one negligible teacher variable (beliefs) is not considered. Although understanding and holding learner-centered beliefs rather than non-learner-centered beliefs seems heuristically and personally important for teacher development, this lack of empirical association is consistent with one of the largest trends found in educational productivity research. The distal is less potent than the proximal, where students (or their current behavior) are the center. Teachers beliefs are more distant from students than their lived behaviors, even as physical attributes of a school (r = .02) is a more distant variable than students prior achievement experiences (r = .75) when correlated with current achievement behavior (Fraser et al., 1987). All of the other person-centered teacher variables (empathy, respect, nondirectivity, encouraging learning and thinking, and adapting to differences) individually showed above average effects (r > .20), with the exception of genuineness (r = .14). A comparison of the measurement perspective of teacher variables shows that students and observers perspectives are more predictive of student success than teachers views of themselves. This finding mirrors that found in the psychotherapy literature, in which clients and observers perspectives of therapists empathy and alliance are better predictors of client success than counselors own views (Bergin & Garfield, 1994). This supports the widespread use of student-rated teacher evaluations. In contrast, when concerned with affective or behavioral student outcomes, all perspectives appear to show the effects of a person-centered environment. The larger correlation found in studies that controlled for the effects of pretest (usually aptitude or achievement) is expectable given that these pretest standings have been shown to have very large correlations with future achievement. The findings regarding ethnicity seem to suggest that person-centered teacher variables are universal, because a comparison of the associations of teacher-student relationships with student outcomes between teachers of color and Caucasian teachers did not show a significant difference. Learner-centered relationships with female teachers seemed to show more impact than those with male teachers, indicating congruence with traditional gender roles as effective nurturers of human development.
Limitations Although the overall analyses were based on very large samples, one limitation is the small sample size of some of the specific categories of independent and dependent variables, especially dropout (based on two findings from one study conducted in Brazil). The independent teacher variable categories had a range of 35 (for genuineness) to 605 (for positive relationships and composites) findings. The cognitive findings had a range of 16 (social science) to 134 (verbal). Excluding dropout, affective behavioral outcomes had a range of 42 (satisfaction) to 288 (positive motivation). Moderator analysis had even smaller numbers at times, though clustering categories into the smaller number of categories seen in Table 1 allowed for sufficient sample size. Limitations of the original studies, seen through their Scientific Methods Scores, also exist. A majority of the studies were correlational in design, and more still did not have randomization and large sample sizes. In these cases, the primarily researched direction, that teachers good relational practices influence students toward broad beneficial outcomes, may be misleading. It is possible that these teacher relational variables may actually be caused by student processes and outcomes rather than the other way around. This potentially bidirectional phenomenon is not just a limitation but an important idea. Such reciprocity was actually hypothesized in Rogerss (1959) original theory statement. Skinner and Belmont (1993) explored these reciprocal relationships using path analysis. In other words, teachers may behave in empathic ways to students who participate, which in turn may increase student participation, setting up a mutually beneficial cycle. Conceptually, congruence is similar to learner-centered beliefs in that it is mostly distal to students direct experiences, being originally hypothesized as a condition of personality integration within the teacher. However, when operationalized, it becomes more proximal, because it is usually measured from an observers perspective. As with teacher beliefs, it is arguable that genuineness is heuristically and developmentally useful, even though its correlation with student success is smaller than average. Also, both beliefs and genuineness are difficult to measure, particularly with regard to their proximal effects, and may be indirectly measured through other independent variables as part of the gestalt of positive (learner-centered) relationships discussed above. Hence, measurement difficulties may be a factor in these two small relationships as well.
Implications for Future Research Perhaps more important than further research is advocacy for the robust associations of positive teacher-student relationships with student success, especially as concerned with the growing importance of affective or behavioral outcomes and learner-centered educations unusually high relationship with affective or behavioral outcomes (Lambert & McCombs, 1998).
Overall, learner-centered teacher variables have above-average associations with positive student outcomes. The classical and contemporary models as wholes both appear more supported than looking at variables in isolation. Positive relationships, nondirectivity, empathy, warmth, and encouraging thinking and learning are the specific teacher variables that are above average compared with other educational innovations. Correlations for participation, critical thinking, satisfaction, math achievement, drop-out prevention, self-esteem, verbal achievement, positive motivation, social connection, IQ, grades, reduction in disruptive behavior, attendance, and perceived achievement are all above average and are presented in decreasing order. The majority of moderators did not show differences in the magnitude of associations, though measurement perspective, pretest control, teacher gender, and teacher ethnicity showed small but consistent effects. Researchers, policy makers, teachers, administrators, students, parents, and others involved in schooling can advocate for increasing the awareness and practice of positive learner-centered relationships.
JEFFREY CORNELIUS-WHITE is an assistant professor and director of school counseling at Missouri State University, 901 National Avenue, Springfield, MO 65897; e-mail: jornelius-white{at}missouristate.edu. He is editor of the Person-Centered Journal, associate editor of the Journal of Border Educational Research, and a board member of the World Association for Person-Centered and Experiential Psychotherapy and Counseling. His research typically focuses on person-centered and social justice education and counseling.
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(rxx x ryy), where ra is the adjusted correlation, ru is the unadjusted correlation, and rxx and ryy are the reliabilities of the independent and dependent variables, respectively. This procedure offers a better estimate of the true correlation when the artifacts of reliabilities are considered in their effect on the unadjusted correlations. I acknowledge that tests of the homogeneity of variance underrepresent transcriptional, computational, and other errors in the service of assessing sampling error for moderator analysis (
coefficient of 0.85. The remaining 8% of studies in English and all studies in German were coded by two persons working together as proficiency in the coding process was developed. The Scientific Methods Score (



