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Peer reviewedStrube, Michael J. – Journal of Counseling Psychology, 1988
Demonstrates that magnitude-of-effects (ME) estimates vary in susceptibility to sample-size bias depending on whether they are directional or nondirectional estimates. Also demonstrates that study characteristics that influence size of ME estimates can be explicitly taken into account when comparing studies. Emphasizes need to consider study…
Descriptors: Data Analysis, Effect Size, Estimation (Mathematics), Meta Analysis
Download full textRiccobono, John A.; Cominole, Melissa B.; Siegel, Peter H.; Gabel, Tim J.; Link, Michael W.; Berkner, Lutz K. – 2002
This report describes the methods and procedures used for the 2000 National Postsecondary Student Aid Study (NPSAS:2000). NPSAS:2000 included notable changes from previous NPSAS surveys (conducted in 1987, 1990, 1993, and 1996) in its sample design and collection of data. For example, this study is the first to restrict institutional sampling to…
Descriptors: Data Analysis, Data Collection, Estimation (Mathematics), Higher Education
Sireci, Stephen G. – 1991
Whether item response theory (IRT) is useful to the small-scale testing practitioner is examined. The stability of IRT item parameters is evaluated with respect to the classical item parameters (i.e., p-values, biserials) obtained from the same data set. Previous research investigating the effect of sample size on IRT parameter estimation has…
Descriptors: Certified Public Accountants, Computer Simulation, Data Analysis, Estimation (Mathematics)
Riccobono, John A.; Whitmore, Roy W.; Gabel, Timothy J.; Traccarella, Mark A.; Pratt, Daniel J.; Berkner, Lutz K.; Malizio, Andrew G. – 1997
This report describes the methods and procedures used for the 1996 National Postsecondary Student Aid Study (NPSAS:96). NPSAS:96, which surveyed over 830 postsecondary education institutions and over 34,000 students and parents, included important changes from previous NPSAS studies conducted in 1987, 1990, and 1993 in its sample design and data…
Descriptors: College Students, Colleges, Data Analysis, Data Collection
Bay, Luz; Chen, Lee; Hanson, Bradley A.; Happel, Jay; Kolen, Michael J.; Miller, Timothy; Pommerich, Mary; Sconing, James; Wang, Tianyou; Welch, Catherine – 1997
This report presents an investigation by the American College Testing Program (ACT) of an alternative design for the National Assessment of Educational Progress (NAEP). The proposed design greatly simplifies the data collection and analysis procedures needed to produce assessment results and has the potential to produce results that are more…
Descriptors: Data Analysis, Data Collection, Educational Assessment, Elementary Secondary Education
Selfa, Lance A.; Suter, Natalie; Koch, Shaun; Zahs, Daniel A.; Kuhr, Brian D.; Myers, Sharon; Johnson, Robert A.; Abraham, Sameer Y.; Zimbler, Linda J. – 1997
The 1992-93 National Study of Postsecondary Faculty (NSOPF-93), the second cycle of this study, surveyed institutions and faculty, with a sample of 974 public and private nonproprietary higher education institutions and 31,354 faculty members. The study was designed to provide a national profile of faculty, including their professional…
Descriptors: Coding, College Faculty, Colleges, Data Analysis
