A developmental researcher investigates the effect of age on reaction time, using a sample consisting of twenty-five individuals from each of the following age groups: 20-, 30-, 40-, 50- and 60-year-olds. Over a one week period, he measures their speed in responding to the appearance of an image. The researcher is using the __________ method.
A) longitudinal
B) epigenetic
C) correlational
D) experimental
E) cross-sectional
Correct Answer:
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Q1: The phase of the life-span characterized by
Q2: The phase of the life-span that is
Q3: The method of research used in developmental
Q4: The method of research used in developmental
Q5: If we took a group of university
Q7: The two major factors that determine development
Q8: X-chromosome inactivation is a form of
A) fetal
Q9: The internal organs of the fetus begin
Q10: Prenatal development begins at
A) conception.
B) birth.
C) about
Q11: The stage of prenatal development during which
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