Biological factors which may be related to personality include
A) blood type.
B) skull shape.
C) levels of mercury or lead in the body.
D) eye movements.
C
Psychology
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Sometimes researchers combine __________ with __________ to deliberately make characteristics equivalent that are likely to distort the results
A) confounding variables; random assignment B) systematic assignment; matching C) matching; confounding variables D) random assignment; matching
Psychology
Although infants in Piaget's sensorimotor Substage 4 have begun to master object permanence,
A) their schemes have a hit-or-miss quality. B) they still make the A-not-B search error. C) they are not yet able to retrieve hidden objects. D) their schemes appear as sudden solutions.
Psychology