That question could be a Brainly Plus question. Does it do it for non Brainly Plus Questions?
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Primary aging
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They manipulated the length of time between seeing and recalling sets of 3-letter stimuli while preventing rehearsal.
Answer:
True
Explanation:
Observational study is a kind of study in which individuals are observed or certain outcomes are measured,without manipulation or intervantion from external sources.
Measuring the relationship between the attractiveness scores asigned to college students by a panel of peers and their scores on a paper and pencil test of anxiety is simply an observation to ascertain an outcomewhich is simply a comparison.