How are hierarchical multiple regression and stepwise multiple regression different?
What will be an ideal response?
Hierarchical regression procedures enter predictor variables based on an underlying theory, while stepwise regression procedures rely on computer algorithms.
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The standard error of the difference between means is defined as
a. the standard deviations of the two samples we have drawn. b. the standard deviations in the two populations from which two samples were drawn. c. our estimate of the standard deviation of the theoretical sampling distribution of differences between means.
In tests of significance, if the test statistic falls in the critical region, we may conclude that
a. the population distribution is normal b. the null hypothesis can be rejected c. the research hypothesis is true d. our sample size was too small
According to conflict theory, the _____ class does society's dirty work for low wages
a. lower-lower b. untouchables c. poor d. working
The _____ principle states that people categorize others on the basis of what appears initially prominent and obvious about them.
A. stereotypic B. salience C. prejudice D. perception