Which group has the highest poverty rate for families?
A) ?Alaskan Natives
B) ?Asian Americans
C) ?African Americans
D) ?Native Americans
Answer: D) ?Native Americans
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It is appropriate to use the paired-samples t-Test when:
a. We want to compare the means of pairs of individuals who have been matched because they are similar to each other. b. We want to compare the means of two independent groups. c. We want to compare a sample statistic to a population statistic. d. We want to compare the means of more than two groups.
Pointing out the here-and-now of group interaction and helping the members to be aware of that interaction is called __________
a) Making group process explicit b) Responding c) Attending d) Clarifying content
Extraneous variables are problematic for claiming causality in research. Whereas researchers want to
assume that the independent variable is truly causing the changes onto dependent variable, and that the effects are not due to other variables. A solid research methodology will account for all observed relationships among variables. According to the text, when can extraneous variables occur? a) Prior to the intervention (independent variable) b) Prior and after the intervention (independent variable) c) Prior and during the intervention (independent variable) d) Prior, during, and after the intervention (independent variable)
An elementary school teacher has three classes. She finds the following mean and standard deviations for
student I.Q. scores. She knows she is more effective if the students are at similar ability levels and the I.Q. measures ability level in this situation. Which class is she likely to be most effective with? [NOTE: I.Q. scores for the general population range from about 70 to 130 with a mean of 100]. A) Class #1 B) Class #2 C) Class #3 D) All classes equally