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Source: Methodology Center, The
Resulting in 4 citations.
1. Kam, Chi-Ming
Collins, Linda M.
Latent Transition Analysis of Substance Use Among Adolescents in the National Longitudinal Survey of Youth
Presented: Beijing, China, XVI Biennial Meetings of the International Society for the Study of Behavioral Development, June 2000
Cohort(s): Children of the NLSY79
Publisher: Methodology Center, The Pennsylvania State University
Keyword(s): Modeling, Growth Curve/Latent Trajectory Analysis; Modeling, Multilevel; Substance Use

Permission to reprint the abstract has not been received from the publisher.

Poster to be presented at the XVI Biennial Meetings of the International Society for the Study of Behavioral Development (ISSBD 2000), Beijing, China. See also: http://methcenter.psu.edu/publications/00-37.pdf for abstract summary.
Bibliography Citation
Kam, Chi-Ming and Linda M. Collins. "Latent Transition Analysis of Substance Use Among Adolescents in the National Longitudinal Survey of Youth." Presented: Beijing, China, XVI Biennial Meetings of the International Society for the Study of Behavioral Development, June 2000.
2. Kam, Chi-Ming
Sayer, Aline G.
Growth Modeling of Mathematics Achievement using Ordinary and Weighted Least Squares Methods Part 1: Descriptive Analysis
Technical Report 97-24. University Park, PA: The Methodology Center, The Pennsylvania State University, 1997
Cohort(s): Children of the NLSY79
Publisher: Methodology Center, The Pennsylvania State University
Keyword(s): Data Analysis; Methods/Methodology; Modeling, Growth Curve/Latent Trajectory Analysis; Peabody Individual Achievement Test (PIAT- Math); Test Scores/Test theory/IRT

Permission to reprint the abstract has not been received from the publisher.

From this brief review, it seems clear that school achievement may influence whether children develop tendencies to use drugs. The underlying mechanism of influence, however, is still not known. Most studies have focused on achievement status, i.e., the level of achievement the child has at a single point in time. Few studies have examined whether growth in achievement (learning rates) predicts drug use. We propose to examine this factor to see if persistence in achievement is more predictive than status at any given time.
Bibliography Citation
Kam, Chi-Ming and Aline G. Sayer. "Growth Modeling of Mathematics Achievement using Ordinary and Weighted Least Squares Methods Part 1: Descriptive Analysis." Technical Report 97-24. University Park, PA: The Methodology Center, The Pennsylvania State University, 1997.
3. Kam, Chi-Ming
Sayer, Aline G.
Scalogram Analysis of an Index of Substance Use
Technical Report 98-24. University Park, PA: The Methodology Center, The Pennsylvania State University, 1998
Cohort(s): Children of the NLSY79, NLSY79 Young Adult
Publisher: Methodology Center, The Pennsylvania State University
Keyword(s): Adolescent Behavior; Alcohol Use; Child Self-Administered Supplement (CSAS); Gender Differences; Methods/Methodology; Modeling; Peabody Individual Achievement Test (PIAT- Math); Scale Construction; Substance Use

Permission to reprint the abstract has not been received from the publisher.

The goal of this report is to describe the creation of an index of alcohol use and assess the concurrent validity of the scale. We also report on the application to our scale development of a new technique for imputing missing data and we describe some considerations when using this technique with the types of indicators typically used to assess substance use.
Bibliography Citation
Kam, Chi-Ming and Aline G. Sayer. "Scalogram Analysis of an Index of Substance Use." Technical Report 98-24. University Park, PA: The Methodology Center, The Pennsylvania State University, 1998.
4. Kam, Chi-Ming
Wagstaff, David A.
Longitudinal Analysis of Complex Survey Data: Math and Reading Achievement from the National Longitudinal Survey Of Youth (NLSY), 1986-1994
Presented: University Park, PA, New Methods for the Analysis of Change Conference, the Methodology Center, the Pennsylvania State University, October 1998
Cohort(s): Children of the NLSY79
Publisher: Methodology Center, The Pennsylvania State University
Keyword(s): Data Analysis; Methods/Methodology; Modeling, Fixed Effects; Peabody Individual Achievement Test (PIAT- Math); Peabody Individual Achievement Test (PIAT- Reading)

Permission to reprint the abstract has not been received from the publisher.

Poster presented at New Methods for the Analysis of Change conference, The Pennsylvania State University, University Park, PA.
Bibliography Citation
Kam, Chi-Ming and David A. Wagstaff. "Longitudinal Analysis of Complex Survey Data: Math and Reading Achievement from the National Longitudinal Survey Of Youth (NLSY), 1986-1994." Presented: University Park, PA, New Methods for the Analysis of Change Conference, the Methodology Center, the Pennsylvania State University, October 1998.