A study in which people of different ages are all measured at the same time in order to assess developmental differences is called a

a. longitudinal study

b. convergent study.
c. sequential study.
d. cross-sectional study.

d

Psychology

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Studies show that children prefer infant-directed speech (IDS) over other kinds of adult talk

A) from birth on. B) by 3 months. C) by 6 months. D) by 12 months.

Psychology

The number of reported cases of autism spectrum disorders has ______ in the past twenty years and _________ since 2007

a. increased slightly; increased dramatically b. increased slightly; decreased slightly c. decreased slightly; increased slightly d. increased dramatically; increased even more dramatically

Psychology