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Question
Which of the following means that something has been examined against reality using data?a. causality
b. manipulation
c. empirical testing
d. spurious association
Answer
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Related questions
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Sketch an example of each of the following (be sure to label everything clearly):
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In a study comparing the means of two groups in which there are 45 males in Group 1 and 37 females in Group 2, the degrees of freedom for this study when using the t-test for the difference between means is:
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b. 80
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Q:
In using the t-test to compare the means of two groups, the degrees of freedom are calculated as _____.
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