Question

Why is the use of representative samples especially important in frequency claims?

A. Frequency claims require very large samples, and representative samples are always large.

B. It is unethical to make frequency claims without representative samples.

C. It is unlikely that the accuracy of estimates can be checked.

D. Representative samples allow for enhanced internal and external validity.

Which of the following is true when asking people questions about themselves?

A. The confidence people have in their memories is not strongly related to the accuracy of their memory.

B. People are very good judges of the reasons for their behavior.

C. People are better able to remember vivid memories.

D. If people are inaccurate in reporting their reasons for behavior, it is because they are deliberately trying to be deceptive.

Which of the following is true of behavioral observation?

A. It requires recording technology, such as video cameras.

B. It requires a research assistant to be with the participant at all times.

C. It may tell a different story than data collected by self-report questions.

D. It is a more reliable and valid method than self-report methodology.

A correlation coefficient and a scatterplot both provide which of the following pieces of information?

A. The strength and direction of the relationship between two measurements

B. The path and significance of the relationship between two measurements

C. The validity and reliability of two measurements

D. The outliers present in the two measurements

Answer 1

1)D. the better the representative sample better will be the accuracy and the validation of the estimates.

2)C. People tend to remember vivid memories better.

3)D. It is more reliable in the sense that we are able to observe the behavior of the experimental units at different scenarios and make the observations and hence there is no scope for inaccurate response,

4)A. The strength is determined by the correlation coefficient's magnitude and rigidity of the pattern of the plot and the direction by the coefficient's sign and the direction of the points in the plot