A researcher selects a pair of random samples and predicts beforehand
that Group 2 will score higher than Group 1. The scores in Group 1 are 11, 10,
8, 3, 7, 1. The scores in Group 2 are 12, 11, 8, 4, 9, 2.
a. Find the t ratio
b. As a one-tail t, should Ho be rejected?
If rejected, state the probability of the alpha error.
c. Do the two groups represent a single population?
a t=-0.441
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Which one is a hallmark of a social dominance orientation?
a. Authorities should be respected and obeyed. b. People cannot be trusted to do the right thing. c. Might makes right, in most cases. d. Some groups are inferior to other groups. e. Social equality will generate fewer problems in the long run.
People are especially likely to draw inferences during reading
a. when researchers examine backward inferences rather than forward inferences. b. when readers have a large working-memory capacity. c. when they learned to read according to the whole-word approach. d. when they read scientific texts.
Piaget's concepts of assimilation and accommodation have some similarities to the learning principles of:
A) the unconditioned and conditioned response. B) classical and operant conditioning. C) primary and secondary reinforcement. D) generalization and discrimination.
In inferential statistics the object is usually to generalize from a _________ to a _________
a. data; variable c. population; sample b. sample; population d. constant; variable