In an experiment to determine the effects of exercise on motivation, exercise is the...
Control Condition
Interventing Variable
Independent Variable
Dependent Variable
To ensure that other researchers can repeat their work, psychologists use...
Control Groups
Random Assignment
Double-blind Procedures
Operational Definitions
The scientific attitude of skepticism is based on the belief that...
People are rarely candid in revealing their thoughts
Mental processes can’t be studied objectively
The scientists intuition about behavior is usually correct
Ideas need to be tested against observable evidence
If shoe size and IQ scores are negatively correlated, which of the following is true?
People with large feet tend to have high IQ’s
People with small feet tend to have high IQ’s
People with small feet tend to have low IQ’s
IQ is unpredictable based on a person’s shoe size
Which of the following would be best for determining whether alcohol impairs memory?
Case Study
Naturalistic Observation
Survey
Experiment
Well-done surveys measure attitudes in a representative subset, or ____, of an entire group, or ___.
population; random sample
control group; experimental group
experimental group; control group
random sample; population
What is the mean of the following distribution of scores: 2,3,7,6,1,4,9,5,8,2?
5
4
4.7
3.7
What is the median of the following scores: 1,3,7,7,2,8,4
1
2
3
What is the mode of the following distribution of scores: 8,2,1,1,3,7,6,2,0,2
7
When a difference between two groups is statistically significant, this means that...
The difference is statistically real but of little practical significance
The difference is probably the result of sampling variation
The difference is not likely to be due to chance variation
All of these statements are true
Which of the following is the measure of central tendency that would be most affected by a few extreme scores in a small sample?
Mean
Median
Mode
The measures of central tendency will ALL be EQUALLY effected
To prevent the possibility that a placebo effect or researchers’ expectations will influence a study’s results, scientists employ...
Experimental Groups
A Double-blind Procedure
In an experiment to determine the effects of attention on memory, memory is the...
Intervening Variable
The strength of the relationship between two vivid events will most likely be...
Insignificant
Causal
Negative
Overestimated
Which type of research would allow you to determine whether students’ grades accurately predict later income?
Correlational
None of the above
To study the effects of lighting on mood, Dr. Cooper had students fill out questionnaires in brightly or dimly lit rooms. In this study, the independent variable consisted of...
The number of students assigned to each group
The students’ responses to the questionnaire
The room lighting
The subject matter of the questions asked
Which of the following BEST exemplifies the hindsight bias?
After discovering Iraq did not have the capacity to develop weapons-of-mass destruction, most Americans regretted the decision to invade Iraq
After discovering Iraq did not have the capacity to develop weapons-of-mass destruction, Americans overestimated the extent to which they “knew-it-all-along”
Objects that we perceive in mirrors appear closer than they actually are
Objects that we perceive in mirrors appear farther than they actually are
