Secondary reinforcers are
a. almost never effective.
b. reinforcing because they fulfill a biological need.
c. innate.
d. learned.
D
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The mark of sexual maturation for a boy that is most comparable to menarche for a girl is
a. a deepening of the voice. b. the first ejaculation of seminal fluid. c. the appearance of pubic hair. d. the release of androgens from the testes.
The intensity of light an object emits or reflects corresponds to the amplitude of the light wave
Indicate whether this statement is true or false.
Lucille suffers from depression, and goes to a physician's office. There a wire coil is placed on the left side of her forehead and a field that disrupts brain activity is created. Lucille is being treated with:
a) transcranial magnetic stimulation (TMS). b) electro-convulsive therapy (ECT). c) functional magnetic resonance imaging (fMRI). d) single-photo emission computed tomography (SPECT).
According to the Centers for Disease Control and Prevention (2017c), which of the following is the leading cause of death among school-age U.S. children?
A. jaundice B. type 1 diabetes C. genetic disorders D. accidental injuries