The primary objective of this investigation is the formulation of random intercept latent profile transition analysis (RI-LPTA). Our simulation investigation suggests that the election between LPTA and RI-LPTA for examination has negligible impact on the estimation of transition probability parameters when the population parameters are generated…

The purposes of this paper are: (1) to examine the extent to which behavior modifiers who work in classroom settings have given attention beyond lipservice to the need for longitudinal or follow-up data; and (2) to discuss problems in the methodology and design of followup research. (Author)

Computer-assisted direct behavioral observation is proposed to aid sensory integration therapy. This allows the occupational therapist to quantify data, devise and answer research questions, and assess progress. Advice is given on establishing a behavior taxonomy. Computer-assisted direct behavioral observation is examined and found valuable for…

Evaluated naturally occurring methods for self-controlling poor study behavior. Successful and unsuccessful subjects were interviewed and observed. The successful methods were evaluated in a controlled treatment study. The self-control techniques identified in the earlier steps received some further support in the last step. (Author)

The process of assertive behavior change of college women who received assertion training (AT) and cognitive restructuring was examined to assess the relative effects of different durations of exposure to cognitive restructuring. Undergraduate and graduate women students (N=27) at a state university volunteered and were screened for AT groups.…

The function of self-injurious behavior (SIB) by an adult with severe mental retardation was analyzed via descriptive and experimental analysis methodologies. Results indicated that SIB occurred more often when the participant was presented with nonpreferred novel activities. Intervention resulted in the use of negation to terminate the…

A review of the major literature examining human work behavior from the perspective of developmental psychology indicates that, although many issues pertaining to the meaning of the concepts of change and development are still unresolved, a great potential exists for cross-fertilization between developmental and vocational psychology. Vocational…

This study is intended to assess the changing lifestyles, values, and preferences of American youth on a continuing basis. Each year since 1975, about 17,000 seniors have participated in the survey, which is conducted in about 130 high schools nationwide. In addition, subsamples of seniors from previously participating classes receive follow-up…

This paper is a companion to the book, "Smoking, Drinking, and Drug Use in Young Adulthood: The Impacts of New Freedoms and New Responsibilities," by Bachman, Wadsworth, O'Malley, Johnston, and Schulenberg (1997). The book attempts to disentangle the effects of post-high school roles on drug use by conducting a variety of analyses on…

This book focuses on transitions into young adulthood by examining key roles and experiences of young adults and how they relate to changes in drug use. The findings are based on the nationwide Monitoring the Future project, and represent the majority of individuals who entered young adulthood in the United States during the years 1976 through…

This paper presents information from the ongoing research program, Monitoring the Future. The program is designed to: (1) monitor drug use and potential explanatory factors among American secondary school students, and other young adults; (2) distinguish which of three different kinds of change--maturational, historical, and/or cohort are…