Studies on the effect of the race of the tester have demonstrated that
a. African-American children consistently score higher when they are tested by African-American examiners.
b. African-American children consistently score lower when they are tested by African-American examiners.
c. White children consistently score higher when they are tested by White examiners.
d. the race of the examiner does not have a consistent effect on the test scores of African-American or White children.
d
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A sample of n = 25 individuals is selected from a population with ยต = 80, and a treatment is administered to the sample. What is expected if the treatment has no effect?
a. The sample mean after the treatment should be very different from 80 and should lead you to reject the null hypothesis. b. The sample mean after the treatment should be very different from 80 and should lead you to fail to reject the null hypothesis. c. The sample mean after the treatment should be close to 80 and should lead you to reject the null hypothesis. d. The sample mean after the treatment should be close 80 and should lead you to fail to reject the null hypothesis.
Which of the following is not a reason why many children in Chinese schools perform better than children in most American schools in math?
a. The Chinese generally value education in math more than Americans do. b. The names for the number words in Chinese are shorter than corresponding words in English. c. The Chinese language uses the base-ten system to represent numbers in the teens. d. Chinese children's ability to count to 20 before American children gives them an advantage in processing numbers.
Learning always occurs as a result of
a. changing our emotions. b. experience. c. changes in the environment. d. classical conditioning. e. internal changes.
Which behavior therapy technique is commonly used to treat anxieties or fears?
a) interpretation b) free association c) dream analysis d) exposure