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Statistics
Research Designs
Research Problems
100
This is the best measure of the representative value of a group of scores.
What is the Mean?
100
This is an example: Steve compares two groups of young mothers. He offers post-partum counseling to one group and not to the other group and then compares their scores on the Beck Depressive Inventory.
What is an experiment?
100
This is a variable that the researcher cannot measure but may have an effect on the outcome of a study or experiment.
What is a Confounding Variable?
200
This value describes the spread of a group of scores.
What is the Standard Deviation?
200
This is an example: Bill sends out a questionnaire to every home in a neighborhood of Winston Salem in order to examine spending habits.
What is a Survey?
200
In research, this may be necessary sometimes in order to obtain a genuine response from the participant, however, it is a decision that is sometimes considered unethical.
What is Deception?
300
This is the percentage of raw scores within one standard deviation from the mean.
What is 68%?
300
This is an example: Susan has tested first grade students with an instrument used to measure attention. She has also questioned their parents on the diet of the children and given appropriate scores. Susan wants to compare the two scores to determine if there is a relationship between the two variables.
What is a Correlational Design?
300
When examining the distribution of data, this is usually the problem when there is not a normal distribution.
What is Kurtosis?
400
When the variance of your population is unknown, you use this procedure to test your hypothesis.
What is a t-test?
400
This is an example: Diane seeks out a victim of a kidnapping, Rachael, and befriends her. Diane wants to tell Rachael's story, so she interviews Rachael, as well as her friends and family, and asks Rachael to help her publish a story about her experience.
What is a Narrative Research Design?
400
Use this tool when you do not know the population variance and need to allow some scores to vary.
What is Degrees of Freedom?
500
This test compares an observed frequency distribution to an expected frequency distribution.
What is a Chi-Square Test?
500
This is an example: Brad wants to examine families and study the effect that depression in a parent has on the young children. He administers the Beck Depression Inventory to the parents, and then interviews the children with open-ended questions.
What is a Mixed Methods Research Design?
500
If you are unable to commence your research, it is likely you were denied by this group.
What is the Institutional Review Board?