Based on investigations with the horse Clever Hans, an important factor researchers should seek to control when testing whether dogs can sniff cancer in urine samples is
A. whether the dogs are tested indoors or outdoors.
B. that some samples should come from people and some from horses.
C. that the urine samples should come from a diverse group of patients.
D. whether, during testing, the dogs can see people who know which samples came from cancer patients.
D. whether, during testing, the dogs can see people who know which samples came from cancer patients.
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A schedule of reinforcement in which the first response performed after a specific amount of time has passed is reinforced is called a
a. fixed-ratio schedule. b. fixed-interval schedule. c. variable-interval schedule. d. variable-ratio schedule. e. continuous reinforcement schedule.
The most comprehensive survey of human sexual behavior since the Kinsey report was conducted by:
a) Janus and Janus. b) Hite and Rose. c) Hilton and Paris. d) Erickson and Schlomo.
Which professional helps students select courses and related opportunities?
a. A counselor from the career center b. An office worker from the registrar’s office c. A professor d. An academic advisor
Jose and Maria are preparing for the arrival of their first child, and are considering moving from their small rural town to a larger city to gain access to more social services, better schools, and a greater variety of local newspapers and
television stations. This is an example of which of Bronfenbrenner's five levels? a) macrosystem b) exosystem c) microsystem d) mesosystem