Journal ArticleDOI
Mediators, Moderators, and Tests for Mediation.
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In this paper, it is suggested that no middle ground exists between exploratory and confirmatory (causal) analysis, and that attempts to explain how mediation processes occur require well-specified causal models.Abstract:
: The following points are developed. First, mediation relations are generally thought of in causal terms. Influences of an antecedent are transmitted to a consequence through an intervening mediator. Second, mediation relations may assume a number of functional forms, including nonadditive, nonlinear, and nonrecursive forms. Special attention is given to nonadditive forms, or moderated mediation, where it is shown that while mediation and moderation are distinguishable processes, a particular variable may be both a mediator and a moderator within a single set of functional relations. Third, current procedures for testing mediation relations in industrial and organizational psychology need to be updated because these procedures often involve a dubious interplay between exploratory (correlational) statistical tests and causal inference. It is suggested that no middle ground exists between exploratory and confirmatory (causal) analysis, and that attempts to explain how mediation processes occur require well-specified causal models. Given such models, confirmatory analytic techniques furnish the more informative tests of mediation. (Author)read more
Citations
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Journal ArticleDOI
The moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations.
Reuben M. Baron,David A. Kenny +1 more
TL;DR: This article seeks to make theorists and researchers aware of the importance of not using the terms moderator and mediator interchangeably by carefully elaborating the many ways in which moderators and mediators differ, and delineates the conceptual and strategic implications of making use of such distinctions with regard to a wide range of phenomena.
Journal ArticleDOI
SPSS and SAS procedures for estimating indirect effects in simple mediation models.
TL;DR: It is argued the importance of directly testing the significance of indirect effects and provided SPSS and SAS macros that facilitate estimation of the indirect effect with a normal theory approach and a bootstrap approach to obtaining confidence intervals to enhance the frequency of formal mediation tests in the psychology literature.
Journal ArticleDOI
Mediation in experimental and nonexperimental studies: New procedures and recommendations.
Patrick E. Shrout,Niall Bolger +1 more
TL;DR: Efron and Tibshirani as discussed by the authors used bootstrap tests to assess mediation, finding that the sampling distribution of the mediated effect is skewed away from 0, and they argued that R. M. 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.
Journal ArticleDOI
A comparison of methods to test mediation and other intervening variable effects.
TL;DR: A Monte Carlo study compared 14 methods to test the statistical significance of the intervening variable effect and found two methods based on the distribution of the product and 2 difference-in-coefficients methods have the most accurate Type I error rates and greatest statistical power.
Journal ArticleDOI
Addressing Moderated Mediation Hypotheses: Theory, Methods, and Prescriptions.
TL;DR: This article disentangle conflicting definitions of moderated mediation and describes approaches for estimating and testing a variety of hypotheses involving conditional indirect effects, showing that the indirect effect of intrinsic student interest on mathematics performance through teacher perceptions of talent is moderated by student math self-concept.
References
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Journal ArticleDOI
Self-efficacy: toward a unifying theory of behavioral change.
TL;DR: An integrative theoretical framework to explain and to predict psychological changes achieved by different modes of treatment is presented and findings are reported from microanalyses of enactive, vicarious, and emotive mode of treatment that support the hypothesized relationship between perceived self-efficacy and behavioral changes.
Journal ArticleDOI
Applied Multiple Regression/Correlation Analysis for the Behavioral Sciences.
Journal ArticleDOI
A theory of motivation for some classroom experiences
TL;DR: It appears that a general theory of motivation is under development that has important implications for the understanding of classroom thought and behavior.
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