In his original experiments, Pavlov paired a bell tone with the presentation of food. After a while, the bell tone alone could provoke salivation. By the time this happened, the ____
a. bell had become a conditioned stimulus
b. food had become a conditioned stimulus
c. animal had lost interest in the food
d. salivation had become an unconditioned response
a
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A researcher selects a sample from a population with ?= 30 and uses the sample to evaluate the effect of a treatment. After treatment, the sample has a mean of M = 32 and a variance of s2 = 6 . If Cohen's d is used to measure the size of the treatment effect, which of the following would have no effect on the value of Cohen's d?
a. Increase the sample size b. Increase the sample mean c. Increase the sample variance d. All of the other options will influence the value of Cohen's d.
In a two-factor experiment with 2 levels of factor A and 2 levels of factor B, three of the treatment means are essentially identical and one is substantially different from the others. What result(s) would be produced by this pattern of treatment means?
a. A main effect for factor A b. A main effect for factor B c. An interaction between A and B d. The pattern would produce main effects for both A and B, and an interaction.
Research on gender differences in mathematical ability indicates that
a. girls are more precocious than boys in mathematics. b. boys generally do better than girls on mathematical analogies. c. girls outperform boys at the high end of the mathematical ability distribution. d. boys slightly outperform girls in mathematical problem solving when they reach high school.
The questions that you choose to ask depend on:
a. your personal perception. b. on the shared view of the world. c. the available tools. d. all of these