Two normal populations of scores both have a mean of 140 and a standard deviation of 10. If samples of 25 observations are drawn from each population, how often would you expect to get mean differences between 0 and +5?
What will be an ideal response?
Correct Answer:
You would expect samples whose means differ from 0 to + 5, 46.16% of the time.
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Refer to Exhibit 10-2. Two classes were randomly selected and randomly assigned to be the experimental and control groups
a. The effect of the independent variable is measured through observation of the dependent variable. b. Extraneous variables are held constant. c. An independent variable is manipulated.
The stages of the writing process are prewriting, drafting, revising, and publishing.?
Answer the following statement true (T) or false (F)
Group mean centring is a useful way to prevent multicollinearity, but how is it usually calculated?
A. An individual score (player confidence) is subtracted from a group mean (mean player confidence in that group). B. An individual score (player confidence) is multiplied by the group mean (mean player confidence in that group). C. An individual score (player confidence) is added to a group mean (mean player confidence in that group). D. An individual score (player confidence) is divided by a group mean (mean player confidence in that group).
Critical literacy can be judged to be effective to the extent that it
A. equips people to effectively question unequal power relations. B. contributes to social stability. C. overthrows the existing government. D. All these answers are correct.