A developmental psychologist compares standardized math test scores for 2^nd, 5^th, and 10^th graders. The subjects are all tested at the same time; thus, different groups of subjects are tested, each group at a different age. This study utilizes an) ___________ design. A) longitudinal B) cross-sectional C) cohort-sequential D) experimental

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The study uses a cross-sectional design because it compares different age groups at a single point in time.

A Developmental Psychologist Compares Standardized Math Test Scores for 2nd

A Developmental Psychologist Compares Standardized Math Test Scores for 2^nd