Predicting change in adolescent adjustment from change in marital problems

The present prospective, longitudinal study of 451 adolescents and their parents extends earlier research by investigating whether change in marital problems predicts change in adolescent adjustment, after controlling for other marital problems and socioeconomic status. Latent growth curves over a period of 5 years were used, and the results revealed that in general, increases or decreases in marital distress and conflict predicted corresponding increases or decreases in adolescent adjustment problems over time. In addition, the analyses suggested that increases in marital distress are as harmful for adolescent adjustment as increases in marital conflict.     

Georg von Békésy: visualization of hearing

Georg von Békésy received the Nobel Prize in 1961 for his research on the functioning of the auditory system. In psychoacoustics, Békésy both extended and perfected the lines of research begun by von Helmholtz in the 19th century. First in his native Hungary and later at Harvard, Békésy used novel and imaginative devices and methods to observe and model the functioning of the inner ear. He also explored the nature of sensory inhibition by which the nervous system sharpens sensory transitions.     

Estimating true score in the compound binomial error model

Several procedures have been proposed in the statistical literature for estimating simultaneously the mean of each ofk binomial populations. In terms of mental test theory, however, it is not clear that these procedures should be used when an item sampling model applies since the binomial error model is usually viewed as an oversimplification of the true situation. In this study we compare empirically several of these estimation techniques. Particular attention is given to situations where observations are generated according to a two-term approximation to the compound binomial distribution.The author would like to thank Shelley Niwa for writing the computer programs used in this study.The work upon which this publication is based was performed pursuant to Grant # NIE-G-76-0083 with the National Institute of Education, Department of Health, Education and Welfare. Points of view or opinions stated do not necessarily represent official NIE position or policy.     

A lower bound to the probability of choosing the optimal passing score for a mastery test when there is an external criterion

Recently there has been interest in the problem of determining an optimal passing score for a mastery test when the purpose of the test is to predict success or failure on an external criterion. For the case of constant losses for the two error types, a method of determining an optimal passing score is readily derived using standard techniques. The purpose of this note is to describe a lower bound to the probability of identifying an optimal passing score based on a random sample ofN examinees.The work upon which this publication is based was performed pursuant to a grant [contract] with the National Institute of Education, Department of Health, Education and Welfare. Points of view or opinions stated do not necessarily represent official NIE position or policy.     

Pairwise comparisons of trimmed means for two or more groups

The paper takes up the problem of performing all pairwise comparisons amongJ independent groups based on 20% trimmed means. Currently, a method that stands out is the percentile-t bootstrap method where the bootstrap is used to estimate the quantiles of a Studentized maximum modulus distribution when all pairs of population trimmed means are equal. However, a concern is that in simulations, the actual probability of one or more Type I errors can drop well below the nominal level when sample sizes are small. A practical issue is whether a method can be found that corrects this problem while maintaining the positive features of the percentile-t bootstrap. Three new methods are considered here, one of which achieves the desired goal. Another method, which takes advantage of theoretical results by Singh (1998), performs almost as well but is not recommended when the smallest sample size drops below 15. In some situations, however, it gives substantially shorter confidence intervals.     

Reciprocal influences between parents' marital problems and adolescent internalizing and externalizing behavior

The present study examines reciprocal associations between marital functioning and adolescent maladjustment using cross-lagged autoregressive models. The research involved 451 early adolescents and their families and used a prospective, longitudinal research design with multi-informant methods. Results indicate that parental conflicts over child rearing predicted adolescent depressive symptoms and delinquency. In turn, these adolescent problems exacerbated parental conflicts over child rearing. Furthermore, conflict over child rearing served as the nexus through which more generalized marital dissatisfaction and adolescent adjustment problems were reciprocally interrelated. This research replicates earlier observations that marital problems intensify adolescent maladjustment and extends the literature by demonstrating that adolescent problems also predict marital conflict and ultimately marital dissatisfaction. In sum, the present study demonstrates that marital dissatisfaction, conflict over child rearing, and early adolescent adjustment difficulties are interwoven in a dynamic family system marked by reciprocity along these dimensions.     

Personality development from late adolescence to young adulthood: differential stability, normative maturity, and evidence for the maturity-stability hypothesis

This investigation examined personality development during the transition from adolescence to adulthood using the brief form of the Multidimensional Personality Questionnaire (Patrick, Curtin, & Tellegen, 2002). Parent and self-reports of personality were obtained in 1994 (average age=17.60 years), and self-reports were obtained in 2003 (average age=27.24 years). There was evidence of both differential stability and normative changes in the direction of increased functional maturity during this transition. Moreover, adolescents with more mature personalities in 1994 tended to show fewer personality changes from 1994 to 2003. These maturity-stability effects held when parent reports were used to assess personality. All told, there was evidence of both stability and change in personality during the transition to adulthood.     

Optimism: an enduring resource for romantic relationships

This study extends research on the adaptive aspects of dispositional optimism to romantic relationships. We hypothesized that optimism would be positively linked to cooperative problem solving in romantic relationships, given previous research indicating that optimists are likely to use approach coping strategies. Results indicated that optimism was linked to satisfying and happy romantic relationships, and a substantial portion of this association was mediated by reports of cooperative problem solving. Moreover, optimism predicted relative increases in relationship satisfaction over a 2-year interval. All told, these results suggest that optimism may serve as an enduring resource for romantic unions.