There is a cohort effect in cross-sectional studies when ______.
a. the different groups in the study have had different life experiences
b. the researcher uses different measures for the different groups in the study
c. participants drop out of the study for various reasons over time
d. the measures that are being used in the study change over time
Ans: A
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A teacher has reason to be concerned about a student who is performing at a rate that is __________ other students
A) ?any amount less than B) ?10 to 20% of C) ?20 to 50% of D) ?25% of
All of the following are the direct result of learning except
a. acquiring a new hobby. b. increasing muscle strength. c. increasing one's cultural knowledge. d. improving one's job skills.
Planned comparisons
a. are post hoc techniques. b. require a significant ANOVA. c. do not require a significant ANOVA. d. should be used to assess mean differences following a t-test. e. are only appropriate if the F statistic was significant.
Answer the following statement(s) true (T) or false (F)
Typical case sampling selects participants because they are considered to be atypical or extraordinary.