Twin studies by Bailey and colleagues showed that concordance rates of homosexuality
were
a. lower in childhood for identical twins than for fraternal twins.
b. lower in adolescence for identical twins than for fraternal twins.
c. higher for fraternal twins.
d. higher for identical twins.
e. no different for identical and fraternal twins.
d. higher for identical twins.
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At the end of the discussion on the nature of mental images, your textbook re-examines the analog viewpoint and the propositional viewpoint, in light of the accumulated research. According to this discussion,
a. the two viewpoints are incompatible; researchers can support either perspective, but not both. b. most mental-imagery tasks seem to use an analog code, but some mental-imagery tasks seem to use a propositional code. c. the propositional viewpoint argues that people do not experience actual mental images. d. the analog viewpoint is supported by the observation that people cannot re-examine a mental image and provide a new interpretation of that image.
Andre is looking out the window of a train speeding across the outskirts of a city. He notices that buildings close to the train appear to be moving faster than those in the distance as the train passes them. Andre is using the depth cue of ____
a. ?aerial perspective b. ?motion parallax c. ?texture gradient d. ?linear perspective
Imagine that you are a subject in a study in which you are asked to remember a sequence of 20 letters of the alphabet dictated to you at the rate of one letter every two seconds. Immediately after the dictation, you are asked to recall the original sequence of letters. Most likely the researcher is studying what aspect of memory?
a. ?apacity of echoic sensory memory b. ?capacity of long-term memory c. ?capacity of iconic sensory memory d. ?capacity of short-term memory
Interdisciplinary collaboration in the study of infant development would be illustrated by all of the following except
a. early childhood educators working with economists b. stage theorists sharing data with researchers who endorse a more continuous view of development c. historians and pediatricians investigating trends in infant mortality rates d. geneticists studying delays in early language acquisition