Four studies utilizing different methodological approaches investigated adult age-related differences in altruism (i.e., contributions to the public good) and the self-centered value of increasing personal wealth. In Study 1, data from the World Values Survey (World Values Survey Association, 2009) provided 1st evidence of a negative association…

Our target article (Robinson-Cimpian, Lubienski, Ganley, & Copur-Gencturk, 2014) used nationally representative data to examine the development of gender gaps in math achievement. We found that when boys and girls demonstrate equivalent math test performance and are perceived by their teachers to be equally well behaved and engaged with the…

Developmental science rests on describing, explaining, and optimizing intraindividual changes and, hence, empirically requires longitudinal research. Problems of missing data arise in most longitudinal studies, thus creating challenges for interpreting the substance and structure of intraindividual change. Using a sample of reports of longitudinal…

Analyzing problem-behavior trajectories can be difficult. The data are generally categorical and often quite skewed, violating distributional assumptions of standard normal-theory statistical models. In this article, the authors present several currently available modeling options, all of which make appropriate distributional assumptions for the…

Argues that more attention should be given to the specification of the independent and dependent variables which describe, explain and predict intraindividual stability and change over time. Statistical techniques for such study are briefly discussed. (Author/SDH)

Responds to Fogel's (1988) concerns about the validity and preferred uses of scaled monadic phases and introduces a note of caution about prematurely concluding that stochastic organization alone is of significance to development. (RH)

Based on data collected over a three-year period, found that, when both parents and adolescents exhibited ineffective, coercive behavior, parent-adolescent interactions grew more negative over time. When parents exhibited nurturant behavior and adolescents belligerent behavior, disruptive adolescent behavior resulted in a decline in nurturant…

The extremely popular "training" studies, virtually all of which have been devoted to the attempt to experimentally induce conservation in nonconserving subjects, were discussed with respect to the logic underlying the method and surrounding theoretical and methodological difficulties. (Author/SDH)

Examines issues related to the design and interpretation of high-risk depression research, including the identification of symptoms and syndromes, categorical versus dimensional scales, aspects of depression to be considered, specificity of effects, use of process measures, and conceptualization of risk and resilience. (MDM)

Discusses procedures and considerations involved with secondary analyses of longitudinal databases. Procedures involve (1) formulating questions; (2) creating a feasibility matrix; (3) reformulating questions; (4) creating derived variables; (5) performing data reduction; (6) analyzing data; and (7) interpreting results. Problems associated with…

This commentary proposes that cross-cultural studies of parenting, like studies within a culture, should become more focused--with antecedent or concurrent measures selected to provide a clear view toward "child outcome." Furthermore, differences within countries may be as great as differences between countries. Therefore, the relevant cultural…

Suggests that testing developmental ordering hypotheses is difficult because rare use of ratio scales prevents direct comparison of measures. Demonstrates that the observed data pattern is constrained by the underlying relationship--although observed data pattern may not reflect the exact relationship, it limits possible relationships. Shows the…

Considers assumptions underlying design of Bussell et al.'s Nonshared Environment in Adolescent Development study. Suggests that a source of the common environment specific to this study is the effect of an individual in mutual ratings of relationship with siblings, leading to a larger common-environment effect across variables than within…

Addresses concerns raised in Neale's commentary regarding the Bussell et al. (1999) Nonshared Environment in Adolescent Development study. Discussion of assumptions focuses on those most relevant to study sample. Because Neale's proposed alternative models did not provide a better fit, the appropriateness of Bussell's model and importance of…

Assessed the relation between behavior problem ratings and family relationship quality among 29 mothers and their 4-year-old children. Findings suggest that the absence of positive parental behaviors is as important as the presence of negative behaviors in behavior problem development. (RH)