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EJ271990 TM507463
Title: The Unit of Analysis: Group Means versus Individual Observations.Author(s): Hopkins, Kenneth D.
Source: American Educational Research Journal, v19 n1 p5-18 Spr 1982
Publication Date: 1982
Language: English
Document Type: Journal articles (080); Reports--Research (143)
Journal Announcement: CIJMAR1983
The recommendation
to use group means when there may be nonindependence among observational
units is unduly restrictive. When random factors are properly identified
and included in the analysis, the results are identical in balanced
analysis of variance designs, irrespective of whether group means
or individual observations are employed. (Author/BW)
Descriptors: Analysis of Variance; *Data Analysis; Hypothesis Testing;
*Mathematical Models; *Research Design; *Research Problems; Statistical
Analysis
Identifiers: *Unit of Analysis Problems
