ERIC Number: EJ370389
Record Type: Journal
Publication Date: 1988
Reference Count: N/A
Adequate Sample Size: A Priori and Post Hoc Considerations.
Brewer, James K.; Sindelar, Paul T.
Journal of Special Education, v21 n4 p74-84 Win 1987-88
From a priori and post hoc data collection perspectives, this paper describes the interrelations among (1) power, alpha, effect size, and sample size for hypothesis testing; and (2) precision, confidence, and sample size for interval estimation. Implications for special education researchers working with convenient samples of fixed size are considered. (Author/JDD)
Publication Type: Journal Articles; Reports - Descriptive; Opinion Papers
Education Level: N/A
Audience: Practitioners; Researchers
Authoring Institution: N/A