Bill received a poor performance evaluation in his job last year. Since then, Bill has started working through his lunch hour, taken on four special projects, and enrolled in night classes to upgrade his computer skills. If Bill receives a better evaluation at his next performance, it will be hard for him to figure out why because
a. he failed to use a double-blind procedure to test his hypothesis.
b. he didn't formulate a research hypothesis before implementing the changes.
c. none of the actions he took are likely to be related to his overall job performance.
d. the three actions he took are confounded with each other.
D
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Tim is just learning to read. Which reinforcement schedule would be the most effective for him?
a. continuous b. intermittent c. fixed d. interval
What finding supports the idea that prenatal sex hormones influence gender-typed preferences?
A. Infants visually fixate on gender-typed toys in accordance with their genders. B. Soon after birth, male infants show more innate signs of aggression. C. When infants begin to crawl, they typically migrate toward toys that are gender-specific. D. Infants with more testosterone in their amniotic fluid tend to respond less to the touch of their mothers.
In a single-blind study:
a. each participant is part of both the experimental and control group b. all confounding variables are eliminated from the study c. both the experimental and control groups receive placebos d. research participants are uncertain whether they are in the experimental or control group
Every time Maricella goes to work in the morning, she notices that her dog sulks in the corner of the room and looks very sad
Over several weeks, she notices that the dog gets unhappy when she picks up her car keys, immediately before leaving the house. Which phenomenon of learning best describes the dog's behavior? a. classical conditioning b. innate learning c. negative punishment d. instinctive drift e. stimulus discrimination