Deck 1: Section 4: The Science of Psychology

Question 1

A case study is an example of _____ research.

A) experimental
B) descriptive
C) survey
D) correlational

Answer 1

descriptive

Question 2

When describing a skewed distribution, it is particularly important to report the _____ as a measure of central tendency.

A) mean
B) median
C) mode
D) range

Answer 2

median

Question 3

In an experiment to understand the effects of exercise on heart rate, a researcher varies the speed of a treadmill and then measures the heart rate of the participant. The heart rate of the participant is the _____.

A) independent variable
B) dependent variable
C) placebo variable
D) operational variable

Answer 3

dependent variable

Question 4

In the normal distribution, over 99 percent of scores fall within how many standard deviations of the mean?

A) 1
B) 2
C) 3
D) 4

Question 5

If you want to predict the relationship between age and intelligence quotient (IQ), which research method would be best?

A) correlational study
B) case study
C) controlled experiment
D) naturalistic observation

Question 6

Which statement about random sampling is TRUE?

A) Random sampling is used to assign participants to experimental and control groups.
B) Random sampling does not provide a representative sample of the population being studied.
C) In random sampling, each individual in the population has the same chance of being in the sample.
D) In random sampling, researchers recruit their friends and associates at random.

Question 7

Suppose the correlation between grades in school and amount of time studying is +.92. These variables have a _____.

A) strong inverse relationship
B) strong direct relationship
C) weak inverse relationship
D) weak direct relationship

Question 8

Which statistic describes the MOST frequently occurring score in a set of scores?

A) mean
B) median
C) mode
D) standard deviation

Question 9

When two variables are unrelated, their correlation will be _____.

A) 1
B) 0
C) +.5
D) -.5

Question 10

A study examining how other people affect one's behavior is MOST likely guided by which major research perspective?

A) biological
B) behavioral
C) cognitive
D) sociocultural