On the job, Mr. Williams was exposed to high doses of radiation. Because of this
exposure, when planning their family, the Williams’ should be concerned about
A) germline mutation.
B) somatic mutation.
C) polygenic inheritance.
D) chromosomal abnormalities.
Five-year-old Louis can conserve liquid, but not volume. According to Case’s
neo-Piagetian theory, one explanation for Louis’s differential success would be that
A) he has more experience manipulating volume than he does manipulating liquid.
B) he lives in a culture that does not encourage mastery of conservation.
C) the processing demands of a conservation-of-volume task are greater than those of a
conservation-of-liquid task.
D) familiar glasses were used in the liquid problem, whereas less familiar glasses were
used in the volume problem.
In thousands of studies, correlations between IQ and achievement test scores typically