We have had scientific evidence of the effectiveness of amphetamines in enhancing athletic performance for about 50 years

Indicate whether the statement is true or false

True

Psychology

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In a __________design, one group of participants is followed and assessed over a period of time as the group ages

a) cohort b) longitudinal c) lifespan d) cross-sectional

Psychology

Professor Grant is interested in studying the development of a sense of humor. She collects data from groups of 6-year-olds, 16-year-olds, 26-year-olds, and 46-year-olds. Professor Grant is using a ________ research design

a) cohort b) longitudinal c) correlational d) cross-sectional

Psychology