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Download full textNational Center for Education Statistics (DHEW), Washington, DC. – 1977
A complex two-stage sample selection process was used in designing the National Longitudinal Study of the High School Class of 1972. The first-stage sampling frame used in the selection of schools was stratified by the following seven variables: public vs. private control, geographic region, grade 12 enrollment, proximity to institutions of higher…
Descriptors: Analysis of Variance, Cluster Analysis, Data Analysis, High School Students
Moore, R. P.; And Others – 1974
An efficiency study was conducted of the base year design used for the National Longitudinal Study of the High School Class of 1972 (NLS). Finding the optimal design involved a search for the numbers of sample schools and students that would maximize the variance at a given cost. Twenty-one variables describing students' plans, attitudes,…
Descriptors: Cost Effectiveness, Data Analysis, Efficiency, Followup Studies
Moore, R. P.; Shah, B. V. – 1975
An efficiency study was conducted of the sampling design used for the National Longitudinal Study of the High School Class of 1972 (NLS), and the change variables used in the first followup. Nine alternative designs were compared, using a cost model based upon the number of schools and students sampled. Fourteen change variables and eight domains…
Descriptors: Attitude Change, Cost Effectiveness, Data Analysis, Efficiency
