A table to facilitate comparison of proportions by slide rule.

For extreme proportions the sampling distribution of differences is highly skewed precluding the use of the normal distribution to test significance. However, there is available a transformation which permits the investigator to use the normal distribution function even with extreme proportions. This paper presents a quick method for using one of the adaptations of this transformation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Organizational Citizenship Behavior in Work Groups: A Group Norms Approach.

Although the relationship between unit-level organizational citizenship behavior (OCB) and unit outcomes has been well established in recent years, the conceptual development of OCB at the unit level of analysis has not been adequately addressed. In an effort to fill this conceptual gap and to spur future research, the authors apply the literature on group norms to the concept of OCB. The resulting framework suggests a cyclical relationship between individual- and group-level processes and ultimately offers an explanation for how OCB norms are established and maintained in work groups. The authors demonstrate how this framework incorporates past research on the relationship between unit-level OCB and unit outcomes and how it extends previous research by suggesting multiple directions for future efforts related to unit-level OCB. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Different Emotional Reactions to Different Groups: A Sociofunctional Threat-Based Approach to "Prejudice".

The authors suggest that the traditional conception of prejudice--as a general attitude or evaluation--can problematically obscure the rich texturing of emotions that people feel toward different groups. Derived from a sociofunctional approach, the authors predicted that groups believed to pose qualitatively distinct threats to in-group resources or processes would evoke qualitatively distinct and functionally relevant emotional reactions. Participants' reactions to a range of social groups provided a data set unique in the scope of emotional reactions and threat beliefs explored. As predicted, different groups elicited different profiles of emotion and threat reactions, and this diversity was often masked by general measures of prejudice and threat. Moreover, threat and emotion profiles were associated with one another in the manner predicted: Specific classes of threat were linked to specific, functionally relevant emotions, and groups similar in the threat profiles they elicited were also similar in the emotion profiles they elicited. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A Comprehensive Review of Prevention Groups for Children and Adolescents.

Primary prevention has increasingly become a focus of the child and adolescent research literature over the past 25 years. Groups are a natural milieu within which to work with children and adolescents. The current research reviews the literature on child and adolescent prevention-oriented group interventions for the decade 1990-2000 to follow up the work of previous reviews in this area, identify current trends, and suggest future directions for the literature. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Use of situational judgment tests to predict job performance: A clarification of the literature.

Although situational judgment tests have a long history in the psychological assessment literature and continue to be frequently used in employment contexts, there has been virtually no summarization of this literature. The purpose of this article is to review the history of such tests and present the results of a meta-analysis on criterion-related and construct validity. On the basis of 102 coefficients and 10,640 people, situational judgment tests showed useful levels of validity (p?=?.34) that were generalizable. A review of 79 correlations between situational judgment tests and general cognitive ability involving 16,984 people indicated that situational judgment tests typically evidence relationships with cognitive ability (p?=?.46). On the basis of the literature review and meta-analytic findings, implications for the continued use of situational judgment tests are discussed, particularly in terms of recent investigations into tacit knowledge. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Power, Voice, and Hierarchy: Exploring the Antecedents of Speaking Up in Groups.

This study examined the effects of interpersonal power and social dominance orientation on individuals' propensities to voice opinions in a group task. It was proposed that individuals high in power would tend to voice their opinions to a greater extent than individuals with less power and that this effect would increase with higher levels of social dominance orientation, that is, the degree to which individuals believe that social hierarchies are justified. This relationship was tested using moderated multiple regression. Significant results were found for the interactive relationship between power and social dominance orientation on voice. Implications and future directions are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Conjunctive and disjunctive conflict: A theory of need conflict.

The ego disjunction theory of conflict for pairs of needs is revised to yield a theory of conjunctive and disjunctive conflict for individual needs: the concept of incompatibility is dimensionalized; the concept of compatibility is introduced; a combined dimension of compatibility-incompatibility is posited for all pairs of needs; however, joint scores of pairs of needs are not independent; the dimension of compatibility-incompatibility is therefore posited for all needs individually. Intensity of conjunctive or disjunctive conflict is specified as a function of the score for the need in relation to the degree of compatibility or incompatibility. Assumptions are made concerning variations of conflict within different populations. The assumptions generate predictions which are generally confirmed. (17 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Informant Discrepancies in the Assessment of Childhood Psychopathology: A Critical Review, Theoretical Framework, and Recommendations for Further Study.

Discrepancies often exist among different informants' (e.g., parents, children, teachers) ratings of child psychopathology. Informant discrepancies have an impact on the assessment, classification, and treatment of childhood psychopathology. Empirical work has identified informant characteristics that may influence informant discrepancies. Limitations of previous work include inconsistent measurement of informant discrepancies and, perhaps most importantly, the absence of a theoretical framework to guide research. In this article, the authors present a theoretical framework (the Attribution Bias Context Model) to guide research and theory examining informant discrepancies in the clinic setting. Needed directions for future research and theory include theoretically driven attention to conceptualizing informant discrepancies across informant pairs (e.g., parent-teacher, mother-father, parent-child, teacher-child) as well as developing experimental approaches to decrease informant discrepancies in the clinic setting. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Extreme appraisals of internal states and bipolar symptoms: The Hypomanic Attitudes and Positive Predictions Inventory.

The Hypomanic Attitudes and Positive Predictions Inventory (HAPPI; W. Mansell, 2006) was developed to assess multiple, extreme, self-relevant appraisals of internal states. The present study aimed to validate the HAPPI in a clinical sample. Participants (N = 50) with a diagnosis of bipolar disorder (confirmed by a structured clinical interview) completed a series of questionnaires pertaining to clinical factors, reward motivation, cognitive style, symptoms, and functioning at baseline, in addition to the HAPPI. Over the following 4 weeks, participants were asked to complete self-report measures of symptoms (activation, perceived conflict, depression, and well-being), as well as work and social functioning, twice weekly. The authors hypothesized that the HAPPI would be associated with prospective bipolar symptoms and functioning, when controlling for baseline symptoms and potentially confounding measures. The HAPPI was positively, independently associated with activation and conflict after 4 weeks. Furthermore, individual HAPPI factors were associated with activation, conflict, and depression. The results provided preliminary support for the predictive validity of the HAPPI in a clinical sample. The HAPPI could be used in the future as a tool in cognitive behavioral therapy for bipolar disorder to identify problematic beliefs and guide formulation. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

On the Categorization of Admired and Disliked Exemplars of Admired and Disliked Racial Groups.

The present work examined the influence of affective fit in the racial categorization process. Study 1 tested whether famous exemplars of stigmatized and nonstigmatized racial groups are categorized by race at differential rates, depending on whether they are admired or disliked. Using an inverted-face paradigm, Study 2 examined whether racial categorization accuracy differs for admired and disliked exemplars of these groups. Study 3 examined the influence of collective self-esteem on Whites' tendency to differentially categorize admired and disliked Black and White exemplars. Last, Study 4 replicated the pattern of results found in the previous studies for White participants, making use of unknown exemplars about whom participants learned either positive or negative information prior to categorizing them. Taken together, the results suggested that phenotypically irrelevant affective information regarding exemplars and their social group memberships influences the racial categorization process. Implications for prejudice and stereotyping are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ethnic Group Identification and Group Evaluation Among Minority and Majority Groups: Testing the Multiculturalism Hypothesis.

Following social identity theory, the author hypothesized that members of minority groups are more likely than majority group members to endorse multiculturalism more strongly and assimilationist thinking less strongly. In addition, the multiculturalism hypothesis proposes that the more minority groups endorse the ideology of multiculturalism (or assimilationism), the more (or less) likely they will be to identify with their ethnic in-group and to show positive in-group evaluation. In contrast, the more majority group members endorse multiculturalism (or assimilationism), the less (or more) likely they are to identify with their ethnic group and to show negative out-group evaluation. Results from 4 studies (correlational and experimental) provide support for this hypothesis among Dutch and Turkish participants living in the Netherlands. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Focus Groups in Psychological Assessment: Enhancing Content Validity by Consulting Members of the Target Population.

A review of articles in Psychological Assessment reveals that many researchers develop instruments without the benefit of consultation with members of the target population. To the extent that researchers do consult the target population, most fail to bring consultation in early enough to inform the identification and specification of key constructs. Moreover, this consultation typically takes the form of one-to-one interviews. The authors' goal in this article was to elaborate on the importance of population consultation as part of content validation and to critically evaluate the potential of one method of consultation, focus groups, to inform multiple stages of instrument development. The authors suggest that this method holds promise for enhancing the content validity of instruments and, ultimately, the validity of research findings. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A Confirmatory Analysis of the Factor Structure and Cross-Age Invariance of the Wechsler Adult Intelligence Scale-Third Edition.

In the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III; D. Wechsler, 1997), the manual reports several confirmatory factor analyses in support of the instrument's latent factor structure. In practice, examiners frequently compare an examinee's score from a current administration of the WAIS-III with the results from a previous test administration. Implicit in test-retest score comparisons is evidence that scores retain similar interpretive meaning across time. Establishing an instrument's factorial invariance provides the foundation for this practice. This study investigated the factorial invariance of the WAIS-III across the instrument's 13 age groups. The overall results from this study generally support both configural and factorial invariance of the WAIS-III when the 11 primary tests are administered. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Mediation in experimental and nonexperimental studies: New procedures and recommendations.

Mediation is said to occur when a causal effect of some variable X on an outcome Y is explained by some intervening variable M. The authors recommend that with small to moderate samples, bootstrap methods (B. Efron & R. Tibshirani, 1993) be used to assess mediation. Bootstrap tests are powerful because they detect that the sampling distribution of the mediated effect is skewed away from 0. They argue that R. M. Baron and D. A. Kenny's (1986) recommendation of first testing the X → Y association for statistical significance should not be a requirement when there is a priori belief that the effect size is small or suppression is a possibility. Empirical examples and computer setups for bootstrap analyses are provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A Comment on Sampling Error in the Standardized Mean Difference With Unequal Sample Sizes: Avoiding Potential Errors in Meta-Analytic and Primary Research.

The authors discuss potential confusion in conducting primary studies and meta-analyses on the basis of differences between groups. First, the authors show that a formula for the sampling error of the standardized mean difference (d) that is based on equal group sample sizes can produce substantially biased results if applied with markedly unequal group sizes. Second, the authors show that the same concerns are present when primary analyses or meta-analyses are conducted with point-biserial correlations, as the point-biserial correlation (r) is a transformation of d. Third, the authors examine the practice of correcting a point-biserial r for unequal sample sizes and note that such correction would also increase the sampling error of the corrected r. Correcting rs for unequal sample sizes, but using the standard formula for sampling error in uncorrected r, can result in bias. The authors offer a set of recommendations for conducting meta-analyses of group differences. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Going to College and Unpacking Hazing: A Functional Approach to Decrypting Initiation Practices Among Undergraduates.

Initiation practices likely support group functioning by promoting group-relevant skills and attitudes, reinforcing status hierarchies, and stimulating cognitive, behavioral, and affective forms of social dependency. In field tests of these propositions, 269 undergraduates from same-gender organizations rated their initiation experiences. As predicted, athletes reported relatively more physical challenge and pain, whereas members of Greek-letter organizations reported more social deviance and embarrassment. Hierarchy was positively associated with initiations featuring social deviance but unexpectedly negatively related to physically and psychologically harsh initiations. Harsh treatment and fun independently predicted group identity. Laboratory experiments on male (n = 74) and female (n = 37) undergraduates found that discomforting inductions increased social dependence on group opinion and, for women, increased additional forms of dependence (proximity to induction agents and negative mood when left alone). The results across studies suggested that hazing's task masters are 3: schooling skills and attitudes, conveying hierarchy, and promoting social dependency. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Direct and Indirect Longitudinal Effects of Parental Involvement on Student Achievement: Second-Order Latent Growth Modeling Across Ethnic Groups.

The present study on the influence of parental involvement on students' academic achievement overcame limitations in current research by including simultaneous considerations of multidimensional, longitudinal, mediational, and ethnic factors. Results indicated (a) significant ethnic differences in the direct effects of parental involvement on academic achievement; (b) consistent indirect effects, mediated by student educational aspiration, across all 4 ethnic groups for initial status and subsequent academic growth; (c) consistent indirect effects, mediated by student locus of control, across all 4 ethnic groups for initial achievement status only; and (d) greater parental involvement, in terms of communication and educational aspiration for children to enhance students' educational aspiration and students' locus of control. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Understanding the Emergence of State Goal Orientation in Organizational Work Groups: The Role of Leadership and Multilevel Climate Perceptions.

This article attends to a broad range of practically significant employee motivations and provides insight into how to enhance individual-level performance by examining individual-level state goal orientation emergence in organizational work groups. Leadership and multilevel climate processes are theorized to parallel each dimension of state goal orientation to cue and ultimately induce the corresponding achievement focus among individual work group members. It is argued that the patterns of leader behavior, which elucidate the leader's achievement priority, shape group members' psychological and work group climate to embody this priority. Resulting multilevel climate perceptions signal and compel group members to adopt the ascribed form of state goal orientation. The quality of the leader-member exchange relationship is viewed as a means to clarify leader messages in the formation of group members' psychological climate and internalize these cues in the emergence of state goal orientation. Considerations for future research and practice are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Why Multicollinearity Matters: A Reexamination of Relations Between Self-Efficacy, Self-Concept, and Achievement.

Multicollinearity is a well-known general problem, but it also seriously threatens valid interpretations in structural equation models. Illustrating this problem, J. Pietsch, R. Walker, and E. Chapman (2003) found paths leading to achievement were apparently much larger for self-efficacy (.55) than self-concept (-.05), suggesting--erroneously, as the authors' reanalysis shows--that self-efficacy was a better predictor of achievement. However, because standard errors for these two paths were so huge (.25) thanks to the extremely high correlation between self-concept and self-efficacy (r = .93), interpretations were problematic. In a model comparison approach to this multicollinearity problem, constraining these two paths to be equal provided a better, more parsimonious fit to the data and also substantially reduced the standard errors (from .25 to .03). (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Control of the Contents of Working Memory--A Comparison of Two Paradigms and Two Age Groups.

Two experiments investigated whether young and old adults can temporarily remove information from a capacity-limited central component of working memory (WM) into another component, the activated part of long-term memory (LTM). Experiment 1 used a modified Sternberg recognition task (S. Sternberg, 1969); Experiment 2 used an arithmetic memory-updating task. In both paradigms, participants memorized 2 lists, one of which was cued as temporarily irrelevant. Removal of the irrelevant list from capacity-limited WM was indexed by the disappearance of list-length effects of that list on latencies for concurrent processing tasks. Young adults could outsource the irrelevant list within 2-3 s and retrieve it back into the central part of WM later. Old adults showed the same flexibility in the arithmetic updating task but seemed somewhat less able or inclined to temporarily move information into the activated part of LTM in the modified Sternberg task. (PsycINFO Database Record (c) 2011 APA, all rights reserved)