September 2017
Beginner to intermediate
446 pages
9h 17m
English
book
Data Analysis with IBM SPSS Statistics
by James C. Mott, Ken Stehlik-Barry, James Sugrue, Anthony Babinec
Content preview from Data Analysis with IBM SPSS Statistics
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Brown-Forsythe and Welch statistics
Two additional statistics that can be used to test for a significant difference across the Means, when the equal variances test results in the rejection of the null hypothesis, are shown in the following figure:
To check out the meaning of these statistics, you can use the What's This help feature in the output to obtain information. If the equal variances assumption is not met, the Welch and Brown-Forsythe tests can be used instead of the ANOVA test, which relies on the F statistic to determine whether the Means are significantly different. This context-sensitive help makes this information available as ...
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