Biomedical subjects

S E Maxwell

Publications and source records attributed to S E Maxwell.

21 records · Page 2Linked to original sources

PubMed1983

A comparison of various strength of association measures commonly used in gerontological research.

An increased usage of measures of strength of association or effect size (ES) has been noted in the gerontological literature. Potential confusion could be generated by the fact that different researchers have reported different measures of ES from study to study. This paper involves a comparison of six ES measures commonly used by gerontological researchers as these measures relate to one another in both the analysis of variance and multiple regression models. Three other issues involving ES measures are discussed: (1) the ES of a contrast; (2) orthogonal and nonorthogonal designs; (3) partial Ess.

Age Factors↗

PubMed1981

Nonrandom assignment and the analysis of covariance in aging research.

A technique developed initially by Overall and Woodward for using nonrandom assignment in ANCOVA is reviewed. Though such a technique produces unbiased measures of treatment effects, this is only true when the assumptions of ANCOVA have been met and when group assignment is based on covariate scores. Limitations and potential applications for such a technique in gerontological research are reviewed.

Aged↗

PubMedDate not supplied

The development of multiple domains of child and adolescent self-concept: a cohort sequential longitudinal design.

The development of child and adolescent self-concept was examined as a function of the self-concept domain, social/developmental/educational transitions, and gender. In two overlapping age cohorts of public school students (Ns = 936 and 984), five dimensions of self-concept were evaluated every 6 months in a manner that spanned grades 3 through 11 (representing the elementary, middle, and high school years). Domains of self-concept included academic competence, physical appearance, behavioral conduct, social acceptance, and sports competence. Structural equation modeling addressed questions about the stability of individual differences over time. Multilevel modeling addressed questions about mean-level changes in self-concept over time. Significant effects emerged with regard to gender, age, dimension of self-concept, and educational transition.

Adolescent↗