A t test for independent means is reported as "t(28 ) = 4.21, p< .01." This means
A) the result is not statistically significant.
B) there were 28 participants in the study.
C) the t score was 4.21.
D) the power was high.
C
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The first step in the calculation of the Pearson product-moment correlation coefficient is to:
a. determine the z score for each score on each variable. b. determine the cross-products of the z scores. c. multiply the z score for variable X by the z score for variable Y. d. divide the cross-products by N.
How do behaviorists explain Pavlov's classical conditioning results?
a. The dog has learned that the meat powder is contingent upon presentation of the bell. b. The dog has made a mental representation of the bell and meat powder. c. The dog has learned the association between paired stimuli. d. The dog has come to expect that the meat powder will come in the presence of the bell.
Debbie and Paul are thinking about starting a family, but are a little hesitant because there is a history of phenylketonuria in Debbie's family. What should Debbie and Paul do?
a. They should adopt a child if they want children. Anyone with a history of inherited disease in their family should not have children. b. They should go ahead and try to start a family. If Debbie is a carrier of the disease, she is unlikely to be able to get pregnant. c. They should go ahead and start trying. Phenylketonuria is not an inherited disease. d. They should go to genetic counseling to determine what the odds are that they will pass on the disease.
Summarize Newell and Lagnado's (2003) view of how groupthink symptoms contributed to the Iraq war.
What will be an ideal response?