Descriptor
| Research Design | 3 |
| Research Problems | 3 |
| Statistical Analysis | 2 |
| Achievement Tests | 1 |
| Analysis of Variance | 1 |
| Autoinstructional Aids | 1 |
| Data Analysis | 1 |
| Educational Research | 1 |
| Guides | 1 |
| Hypothesis Testing | 1 |
| Matched Groups | 1 |
| More ▼ | |
Author
| Hopkins, Kenneth D. | 3 |
| Hopkins, B. R. | 1 |
Publication Type
| Journal Articles | 2 |
| Reports - Research | 2 |
| Guides - General | 1 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedHopkins, Kenneth D.; Hopkins, B. R. – Journal of Special Education, 1979
The article illustrates a method to estimate changes in the statistical power of a study which are caused by changes in the reliability of the dependent variable. (Author)
Descriptors: Research, Research Design, Research Methodology, Research Problems
Peer reviewedHopkins, Kenneth D. – American Educational Research Journal, 1982
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.…
Descriptors: Analysis of Variance, Data Analysis, Hypothesis Testing, Mathematical Models
Download full textHopkins, Kenneth D. – 1973
This self-contained and self-instructional unit is intended for use by evaluation and development personnel and by students in introductory research and evaluation courses. The unit contains a discussion of the regression employing graphic illustrations with actual data. The user is introduced to the regression effect in the single group…
Descriptors: Achievement Tests, Autoinstructional Aids, Educational Research, Guides
