Among school-age children from middle- to high-SES families, insufficient dietary iron and folate predicted
A) slightly lower mental test performance.
B) a loss of body fat.
C) serious and prolonged physical damage.
D) an increase in childhood ear infections.
A
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____ increases the chance that characteristics other than the independent variable will be equally distributed across treatment groups
a. Manual distribution b. Predetermined distribution c. Natural assignment d. Random assignment
An action potential is:
a. the tiny electrical charge that exists when a neuron is neither receiving nor sending information b. an electrical signal that travels along the axon of a neuron c. the small gap that exists between adjacent neurons d. an electrical signal that travels along the dendrites of a neuron
Preschool children's generally optimistic belief in their own abilities often
a. is accurate. c. is unrealistic. b. is realistic. d. is related to their interactions with peers.
The most widely employed assessment tool for selecting police officers is
A. the foot patrol observation test. B. the interview. C. the MMPI. D. the clues test.