… In order to take best advantage of partial data, and to limit biases, we employed multiple
imputation (MI) with SAS (version 9.2) Proc MI following guidelines in Graham (2012). In order to …

… Our goal was to follow the procedure outlined by Graham et al. (1984) to arrive at a single
composite stratifying variable for randomization based on the school-level variables available. …

This article argues that ideal longitudinal research is characterized by the seamless integration
of three elements: (a) a well-articulated theoretical model of change observed using (b) a …

One of the most difficult problems with performing multiple imputation relates to having too
many variables in the imputation model. In many instances, the problems associated with …

Two studies investigated the process by which individuals in nonmarital romantic relationships
characterized by low commitment move toward enacting leave behaviors. Predictions …

… For other descriptions of the workings of NORM, please see Graham et al. (2003),
Graham and Hofer (2000), and Schafer and Olsen (1998). … This is expected because with�…

Objective This study compared the accuracy of artificial neural networks to multiple regression
and classification and regression trees in predicting outcomes of 1644 patients in the …

Communities That Care (CTC) is a prevention system designed to reduce adolescent substance
use and delinquency through the selection of effective preventive interventions tailored …

Primary grade teachers randomly selected from across the United Sates completed a survey
(N = 168) that examined their instructional practices in spelling and the types of adaptations …

Previous studies on parental support have consistently shown it predicts lower adolescent
alcohol use. Yet findings regarding the influence of parental monitoring have been mixed. The …