Question 1

Which of the following best describes the concept of 'absolute threshold' in sensation and perception?

Accepted Answer

The minimum stimulation needed to detect a particular stimulus 50% of the time.

Question 2

A researcher is studying the heritability of intelligence by comparing identical and fraternal twins. Which concept is most directly being investigated?

Accepted Answer

Genetic contribution to individual differences

Question 3

Which psychologist is most closely associated with the development of operant conditioning?

Accepted Answer

B.F. Skinner

Question 4

A patient has difficulty recognizing faces but can identify objects. Which brain area is most likely damaged?

Accepted Answer

Temporal lobe

Question 5

Which of the following best illustrates a positive correlation?

Accepted Answer

As temperature increases, ice cream sales increase.

Question 6

According to the Big 5 personality traits, which trait is characterized by being organized, careful, and disciplined?

Accepted Answer

Conscientiousness

Question 7

A psychologist wants to test the reliability of a new intelligence test. Which method would best assess this?

Accepted Answer

Administering the test to the same group twice and comparing the scores.

Question 8

Which of the following is an example of the principle of falsifiability in scientific research?

Accepted Answer

A hypothesis that can be tested and potentially shown to be incorrect.

Question 9

Which of the following best describes the function of the rods in the retina?

Accepted Answer

Detecting dim light and peripheral vision.

Question 10

A researcher finds that the correlation coefficient between hours of sleep and reaction time is $$r = -0.65. $$What does this indicate?

Accepted Answer

As hours of sleep increase, reaction time decreases.

Question 11

Which of the following best describes the function of the myelin sheath?

Accepted Answer

It insulates axons and speeds up neural impulses.

Question 12

A psychologist is conducting a double-blind study. Which of the following is true about this research design?

Accepted Answer

Neither the participants nor the experimenters know who is in the experimental or control group.

Question 13

Which of the following is a key difference between collectivist and individualist cultures?

Accepted Answer

Individualist cultures value independence and self-expression.

Question 14

Which of the following best describes the function of the hippocampus?

Accepted Answer

Processing and storing new memories.

Question 15

A student is able to correctly identify the color of an object under different lighting conditions. Which concept does this illustrate?

Accepted Answer

Color constancy

Question 16

Which of the following is the best example of a negative correlation?

Accepted Answer

As hours of exercise increase, body fat percentage decreases.

Question 17

Which of the following best describes the function of the occipital lobe?

Accepted Answer

Processing visual information.

Question 18

A psychologist is interested in the effect of caffeine on memory. She randomly assigns participants to receive either caffeine or a placebo and measures their recall ability. Which type of research design is she using?

Accepted Answer

Experimental study

Question 19

Which of the following best describes the function of cones in the retina?

Accepted Answer

Detecting color and fine detail in bright light.

Question 20

A researcher wants to ensure that her findings can be generalized to the larger population. Which concept is she most concerned with?

Accepted Answer

Validity

Foundational Concepts and Theories in Psychology

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