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740101s1974 xx ||| b ||| | eng d |
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|a ED090303 Microfiche
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|a ED090303 Microfiche
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|a Kocher, A. Thel.
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| 245 |
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|a An Investigation of the Effects of Non-Homogeneous Within-Group Regression Coefficients Upon the F Test of Analysis of Covariance /
|c A. Thel Kocher.
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|a [Place of publication not identified] :
|b Distributed by ERIC Clearinghouse,
|c 1974.
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| 300 |
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|a 27 pages
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| 336 |
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|a text
|b txt
|2 rdacontent
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|a microform
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|a microfiche
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|a ERIC Note: Paper presented at the Annual Meeting of the American Educational Research Association (Chicago, Illinois, April, 1974).
|5 ericd
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| 520 |
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|a The purpose of the present study was to investigate empirically the effects of violations of the assumption of homogeneity of within-group regression slopes on levels of significance in the F test of fixed-effects ANCOVA (analysis of covariance). The study used a Monte Carlo computer simulation procedure to generate data under the following conditions: (1) the covariate was a random variable; (2) the number of treatment groups was three; (3) treatment group n's were small to medium and were unequal as well as equal; (4) error variances were equal as well as unequal; and (5) covariate means were both equal and unequal. For each simulation, the proportion of F values exceeding certain critical values was compared to the nominal alpha corresponding to the critical values. (Author)
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| 533 |
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|a Microfiche.
|b [Washington D.C.]:
|c ERIC Clearinghouse
|e microfiches : positive.
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| 500 |
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|a Microform.
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| 650 |
1 |
7 |
|a Analysis of Covariance.
|2 ericd
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| 650 |
0 |
7 |
|a Analysis of Variance.
|2 ericd
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| 650 |
1 |
7 |
|a Hypothesis Testing.
|2 ericd
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| 650 |
1 |
7 |
|a Multiple Regression Analysis.
|2 ericd
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| 650 |
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7 |
|a Research Problems.
|2 ericd
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| 650 |
1 |
7 |
|a Statistical Significance.
|2 ericd
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| 650 |
1 |
7 |
|a Statistics.
|2 ericd
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|a Michigan State University-Library of Michigan
|b Michigan State University
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