FREE BAPSY Bachelor of Arts in Psychology Psychological Research and Statistics Questions and Answers

Question 1

A researcher is studying the effect of a new memory-enhancing drug.
One group receives the drug, and another group receives a placebo.
The researcher then measures their performance on a memory test.
To determine if the results can be generalized to a larger population, the researcher should use which type of statistics?

Accepted Answer

Inferential statistics

Answer

Descriptive statistics

Answer

Correlational statistics

Answer

Measures of central tendency

Question 2

A psychologist develops a new questionnaire to measure anxiety. To ensure the questionnaire accurately measures the concept of anxiety and not some other related concept like stress, the psychologist must establish strong:

Accepted Answer

Construct validity

Answer

Internal validity

Answer

External validity

Answer

Test-retest reliability

Question 3

A study finds a strong positive correlation between ice cream sales and the number of shark attacks. Concluding that eating ice cream causes shark attacks is an error in reasoning because:

Accepted Answer

A third variable, such as weather, is likely involved.

Answer

The sample size was likely too small.

Answer

The correlation is negative, not positive.

Answer

The statistical analysis was incorrect.

Question 4

Which of the following APA ethical principles requires that researchers strive to be honest, accurate, and truthful in their scientific work and avoid any form of fraud or misrepresentation?

Accepted Answer

Integrity

Answer

Beneficence and Nonmaleficence

Answer

Fidelity and Responsibility

Answer

Justice

Question 5

A researcher wants to assess the stability of their new personality test. They administer the test to a group of participants on one occasion and then again to the same group one month later. The researcher is most likely evaluating the test's:

Accepted Answer

Test-retest reliability

Answer

Predictive validity

Answer

Internal consistency

Answer

Construct validity

Question 6

In an experimental design, the variable that is manipulated by the researcher to observe its effect on another variable is known as the:

Accepted Answer

Independent variable

Answer

Dependent variable

Answer

Confounding variable

Answer

Control variable