Harold is upset with his grade on his developmental psychology test, and says, "I bet if I would've taken that test at another time I would have done much better.". Harold's complaint deals most directly with the questionable ____of the test
a. validity
b. sample
c. reliability
d. population
c
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Smita studies six different cohorts over a 30-year period, testing each subject every five years. Smita is using a ____ design
a. longitudinal b. cross-sectional c. sequential d. microgenetic
That objects continue to exist when they cannot be seen defines
object permanence. an acquired adaptation. mental representation. object continuity.
Menarche typically occurs around _______ years of age; its timing reflects __________
a) 10; nature, overwhelmingly b) 10; nature and nurture c) 12; nature, overwhelmingly d) 12; nature and nurture
Most people have occasional difficulty falling asleep or staying asleep during the night, but true cases of __________ are only reported by about 10-15% of adults. Even in those cases, however, people may underestimate their actual sleep habits
a. nonsomnia b. insomnia c. narcolepsy d. pseudosomnia