In homogeneous sampling, researchers
a. compare differences of two or more levels of the problem.
b. select a small group of participants who fit a narrow problem.
c. identify participants who meet a defined criterion and select a sample.
d. allow initial participants to identify additional study participants.
b
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Which of the following statements is true of the effect of using various kinds of schedules of reinforcement with children?
A. Children on fixed schedules show greater persistence than children on variable schedules. B. Partial reinforcement produces greater resistance to extinction than continuous reinforcement. C. Initial learning is slower with continuous rather than partial reinforcement. D. Continuous reinforcement works better than partial reinforcement once a child masters a response.
In the main effect F(1,9) = 1.67, p = .229, what is 1.67?
a. the obtained value b. the critical value c. the probability level d. the correlation
To sharpen your critical thinking skills, you should _____.
A. develop your plan of action B. develop yourself as an analytical decision maker C. admit it when you don’t know D. think about your thinking
Answer the following statement(s) true (T) or false (F)
When a response rate is high, it is more likely that the sample is representative of the larger population of interest