The number of action potentials per unit of time determines a neuron's:
a. action potential
b. resting potential
c. dendrite pattern
d. firing rate
D
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The term intrasexual selection refers to ____
a. homosexual behavior b. procreation within the same family c. choosing a mate from a genetically similar population d. same-sex competition for a mate
Marla conducts a study to gradually teach a poodle to jump through a flaming hoop. At each session, Marla introduces a more stringent set of guidelines before reinforcing the poodle. Which one of the following designs would be most appropriate for this study?
a. changing-criterion design b. A-B-A-B design c. multiple-baseline design d. interaction design
Four-year-old Ingo engages in make-believe play, stirring beads in a bowl and saying, "Soup is ready!" According to Piaget, this kind of play is indicative of the ________ stage of cognitive development.
A. sensorimotor B. preoperational C. concrete operational D. formal operational
Regarding samples, which of the following statements is FALSE?
a. Samples are cross-sections of a population. b. Samples are used to draw conclusions about larger groups. c. Inferential statistics are often applied to samples. d. Samples are often too difficult to obtain for research.