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Brief Stats
Survey Construction
Correlations
Non-Experimental Designs
Review From Exams 1 & 2
100
The most frequent value in the data set
What is the mode?
100
When participants answer in a socially acceptable manner, painting an unrealistically positive picture of one’s self.
What is social desirability?
100
When two variables move (or vary) in the opposite direction — either up or down
What is a negative correlation?
100
An intensive study of one individual or group.
What is a case study?
100
When every person in the population of study has an equal chance of being selected to participate in the study.
What is random selection?
200
The p value at which we can determine our results were not due to chance.
What is p < .05
200
A question that asks you to answer two questions at once on one scale.
What is a double barreled question?
200
This problem creates an alternative explanation for the observed relationship.
What is the 3rd variable problem?
200
Participants behaving unnaturally because they know they are being studied
What is reactivity?
200
Procedure employed during experiments that eliminates concerns about our participants' individual differences.
What is random assignment.
300
On average, how much each observation deviates from the sample mean.
What is the standard deviation?
300
A rating scale asking participants to rate their degree of agreement with something.
What is a Likert or Likert Type scale?
300
The highest possible correlation coefficient.
What is +/- 1?
300
When researchers examine naturally-existing public records in order to test a hypothesis.
What is an archival study?
300
When something in an experiment systematically varies with one level of the IV but not the other(s).
What is a confound?
400
The correct statistical test when your have a categorical IV and a categorical DV.
What is a Chi-Square?
400
The optimal range of answer choices of a response scale?
What is 3 to 10?
400
The two pieces of information that the correlation coefficient tells us.
What are the strength and the direction of the correlation?
400
The type of reliability we are most concerned with in observational and archival studies.
What is inter-rater reliability?
400
When characteristics of the sample differ systematically from those of the population
What is a biased sample?
500
The statistical test used to determine the strength and direction of a relationship between two continuous variables.
What is a correlation?
500
When all the participants' responses center around the high end of the scale.
What is a ceiling effect?
500
(N-2)
What is the degrees of freedom?
500
Author of the "Looking Deathworthy" article.
Who is Jennifer Eberhardt?
500
The extent to which your findings can give info on whether the change in your IV caused the change in your DV
What is internal validity?