_____ designs are to studying individuals of different ages at the same time as _____ designs are to studying the same people over a period of time

a. Sequential; cross-sectional
b. Longitudinal; sequential
c. Longitudinal; cross-sectional
d. Cross-sectional; longitudinal


d

Psychology

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What was one of the first specimens observed under the lens of the electron microscope that was invented in 1932?

a. blood c. viruses b. saliva d. sperm

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Baby Megan has been described as irritable and irregular in her sleeping and eating habits. Megan's temperament is most likely

A. easy. B. difficult. C. slow-to-warm-up. D. anxious.

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Migraine headaches can result from information carried by the trigeminal nerve (cranial nerve V) from the brainstem to the meninges.

Answer the following statement true (T) or false (F)

Psychology

Preschoolers' first attempts to print often involve writing

A) in lowercase letters. B) a pretend grocery list. C) a parent's or sibling's name. D) their own name.

Psychology