Wayne F. Velicer

Stages of change in psychotherapy: Measurement and sample profiles.

Decisional balance measure for assessing and predicting smoking status.

The Decisional Balance Sheet of Incentives has been proposed by Janis and Mann (1977) as a general schema for representing both the cognitive and motivational aspects of human d...

Patterns of Change: Dynamic Typology Applied to Smoking Cessation

Patterns of change occurring in a combined cross-sectional and longitudinal (cross-sequential) analysis of 14 variables were investigated in a two-year study of self-change appr...

Subject characteristics as predictors of self-change in smoking

Measuring processes of change: Applications to the cessation of smoking.

Subjects (A' = 970) representing five stages of smoking cessation (precontemplation, contemplation,action, maintenance, and relapse) were given a 65-item test measuring 10 basic...

Comparison of five rules for determining the number of components to retain.

Factors Influencing Four Rules For Determining The Number Of Components To Retain

The performance of four rules for determining the number of components to retain (Kaiser's eigenvalue greater than unity, Cattell's SCREE, Bartlett's test, and Velicer's MAP) wa...

The Effects of Overextraction on Factor and Component Analysis

The effects of overextracting factors and components within and between the methods of maximum likelihood factor analysis (MLFA) and principal component analysis (PCA) were exam...

An Empirical Comparison Of The Similarity Of Principal Component, Image, And Factor Patterns

Factor analysis, image component analysis, and principal component analysis are three methods that have been employed for the same purpose. Factor analysis was traditionally vie...