DoctorExplorationJaguar9
Observing the number of times participants physically hurt someone…
Observing the number of times participants physically hurt someone or the number of times participants yell at someone could both be ways of trying to ________ the variable “aggression.”
a. describe
b. theorize
c. operationalize
d. internalize
2. _______ refers to the consistency or stability of a measure of behavior.
a. Validity
b. Reliability
c. Reactivity
d. Variability
3. Validity refers to…?
a. Consistency
b. Reliability
c. Accuracy
d. All of the above
4. A confounding variable is an extraneous variable that _______________.
a. is counterbalanced
b. is held constant
c. varies systematically with the DV
d. varies systematically with the IV
5. What is the difference between experimental and nonexperimental methods of study?
a. Nonexperimental methods involve operational definitions, whereas experimental methods are simple observations.
b. Nonexperimental methods result in definite results, whereas experimental methods simply give a broad perspective of the variables under study.
c. Experimental methods have random variables, whereas nonexperimental methods have manipulated variables.
d. Experimental methods involve the manipulation and control of variables, whereas nonexperimental methods involve observation between variables.
6. Dr. Quiñones is conducting an experiment with her CDV 320 students to examine whether caffeine consumption affects exam scores. She randomly assigns participants into one of two groups: one group of participants drink a cup of coffee before the exam, whereas the other group of participants refrain from drinking any coffee. Participants then take the exam and she measures their exam scores. Use Dr. Quinones’ experimental study to respond to Question #6 – Question #9.
Which of the following is considered the independent variable?
a. Caffeine consumption
b. Exam Scores
c. The group that refrains from drinking coffee
d. The group that drinks a cup of coffee
7. How many levels does Dr. Quiñones’ independent variable (IV) have?
a. 1
b. 2
c. 3
d. 4
8. Using Dr. Quiñones’ experimental study described in Question #6, which of the following is considered the dependent variable?
a. Caffeine consumption
b. Exam Scores
c. The group that refrains from drinking coffee
d. The group that drinks a cup of coffee
9. Which type of experimental design did Dr. Quiñones use in the example described in Question #6?
a. Within-subjects design
b. Between-subjects design
c. Mixed-subjects design
d. None of the above
10. Dr. Fuligni conducted an experiment on the effect of mode of presentation (visual presentation versus verbal presentation) on memory. He randomly assigned half of the participants to the visual presentation group and the other half to the verbal presentation group. Which type of experimental design did he use?
a. Within-subjects design
b. Between-subjects design
c. Mixed-subjects design
d. None of the above
