Experimental control helps to eliminate the problem of
a. variation in the dependent variable caused by the independent variable.
b. experimental error.
c. interaction effects.
d. error variance.
B
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The F-ratio evaluating the significance of a linear regression equation based on n = 10 pairs of X and Y scores has df = 1, 9
Indicate whether the statement is true or false
A teacher decides to use extinction on a child's behavior of complaining when he is asked to work on assignments. The teacher conducts a functional assessment to determine which events might be maintaining the behavior. In this case the teacher is considering whether she can:
a. eliminate the reinforcer b. maintain consistency c. identify the reinforcer d. tolerate an extinction burst
According to the American Academy of Pediatrics, how long should children be breastfed?
a. only for the first two weeks b. for the first 6 months c. It does not matter, as formulas are just as nutritious. d. for at least one year
In the later years of middle childhood:
a. parents become increasingly influential in their children's lives. b. children rate their peers as their most important source of emotional support. c. children evaluate their parents more critically than before. d. all of these