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A Dual-Process Discrete-Time Survival Analysis Model: Application to the Gateway Drug Hypothesis
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Malone, Patrick S.; Lamis, Dorian A.; Masyn, Katherine E.; Northrup, Thomas F. – Multivariate Behavioral Research, 2010
The gateway drug model is a popular conceptualization of a progression most substance users are hypothesized to follow as they try different legal and illegal drugs. Most forms of the gateway hypothesis are that "softer" drugs lead to "harder," illicit drugs. However, the gateway hypothesis has been notably difficult to…
Descriptors: Drug Use, Models, Statistical Analysis, Computer Software
A Conjugate Gradient Algorithm for the Multidimensional Analysis of Preference Data
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Schonemann, Peter H.; And Others – Multivariate Behavioral Research, 1975
Descriptors: Algorithms, Data Analysis, Dimensional Preference, Individual Differences
A Multivariate Descriptive Model of Motivation for Orthodontic Treatment.
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Hackett, Paul M. W.; And Others – Multivariate Behavioral Research, 1993
Motivation for receiving orthodontic treatment was studied among 109 young adults, and a multivariate model of the process is proposed. The combination of smallest scale analysis and Partial Order Scalogram Analysis by base Coordinates (POSAC) illustrates an interesting methodology for health treatment studies and explores motivation for dental…
Descriptors: Dentistry, Health Promotion, Interviews, Mathematical Models