At least 50% of adults aged 80 complete fluid and crystallized tests of intelligence and performance at rates similar to young people. This statement suggests _______
a. extensive variability within age groups
b. that at least half of older adults have had increases in their IQ scores over time
c. that at least half of younger adults have higher IQ scores than the older adults
d. all of the above are suggested
A
Psychology
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Describe the concept of gene–environment correlation, including passive, evocative, and active types. Define niche-picking
What will be an ideal response?
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Sometimes researchers make use of within-subjects designs where they cannot create equivalent groups or directly manipulate an independent variable. In this case, the researchers are using a within-subjects, __________ design
a. between-subjects b. quasi-experimental c. correlational d. descriptive
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