Reference no: EM133326040
1. Participants in a concept learning study solve several anagram puzzles over the course of 30 minutes. Even though the puzzles were known to be of equal difficulty, participants solved the puzzles in less and less time as the 30-minute period progressed. This is likely the result of a(n) _____ effect.
-practice
-contrast
-fatigue
-matched-pairS
2. Random assignment is a critical element of the experimental method because it
-eliminates consistent effects of extraneous variables
-leads to equal group sizes
-increases the construct validity of the dependent variable
-all of these
3. Consider a study for which the population and sample of the study includes only residents of Pawnee, Indiana. Which one of the following is most likely NOT a variable in that study?
-Resident of Pawnee
-Degree of support for local government initiative 26
-Number of children in household
-How many Paunch burgers are eaten every week
4. What two problems arise when interpreting results obtained using the non experimental method?
-third variable problem and direction of cause and effect
-second variable problem and third variable problem
-direction of cause and effect and second variable problem
-none of these
5. Pepper Potts has a difficult time answering the question "On a scale of 1 to 7: how happy are you with Stark Industries marketing team and Tony Stark's effectiveness as a leader" because it is a _____ question
-loaded
-double-barreled
-simplistic
-yea-saying
6. Classification of items into categories is an example of what type of scale?
-nominal
-ordinal
-interval
-ratio
7. Rocket has no idea how to cite his references, so he just puts a footnote at the end without any in-text citations. Would this represent plagiarism?
-yes
-no
-depends on the teacher
-none of these
8. When the results of the study are certainly due to the independent variable and nothing else, we can be sure the study has _______ validity
-Internal
-External
-Ecological
-Discriminant
9. A measure has construct validity if it
-measures what it is intended to measure
-is given to participants in a laboratory setting
-contains a large amount of true score
-all of these
10. To examine how a reward influences a desired behavior, Abby first counts the number of times her son makes his bed over a two-week period. For the next two weeks, she gives him a reward every time he makes his bed. Following this period, she stops giving him a reward and again counts the number of times he makes his bed. This procedure would be an example of a(n) _____ design?
-reversal
-pretest-posttest
-control series
-baseline
11. If a participant has been deceived, ethical considerations require that a researcher conduct a ...
-debriefing
-informed consent
-postmortem
-manipulation check
12. Dr. Strange studied the effect of transcendental meditation on symptoms of depression. He administered the New York Hospital Depression Scale (NYDS) before randomly assigning participants to one of two groups: one that engaged in meditation and the other, which did not. After the meditation group completed the program over a course of 2 months, Dr. Strange, once again, administered the NYDS to both groups and compared initial scores with final scores within each group. It was determined the group that participated in meditation scored lower on the NYDS than those who did not engage in meditation.
What are the independent and dependent variables of this study, respectively?
-final scores, initial scores
-meditation, depression
-transcendental mediation, mantra meditation
-depression, meditation