The diagram below best describes which type of research design?
R O1 O2
R O3 X O4
A) posttest-only control group design B) posttest-only design
C) pretest-posttest control-group design D) Solomon four-group design
C
Psychology
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A man who is almost 65 years old develops a more passive style of interaction and withdraws from society. Which theory predicts this behavior?
continuity self-actualization selective optimization disengagement
Psychology
Developmental changes during childhood tend to occur:
A) in cross-sections. B) in stages. C) gradually or continuously. D) longitudinally.
Psychology