The famous study of Phineas Gage, who survived when a metal rod pierced his skull, is an example of a
a) case study.
b) laboratory experiment.
Consider This: The advantage of this method is the tremendous amount of detail it provides. LO 1.6 Compare and contrast some of the methods used to describe behavior.
c) correlation.
Consider This: The advantage of this method is the tremendous amount of detail it provides. LO 1.6 Compare and contrast some of the methods used to describe behavior.
d) survey.
Consider This: The advantage of this method is the tremendous amount of detail it provides. LO 1.6 Compare and contrast some of the methods used to describe behavior.
Topic: Scientific Research
ANS: a, Understand the Concepts. LO 1.6 Compare and contrast some of the methods used to describe behavior. (1)
EOC Q1.14
A researcher finds that as her subjects increased the number of hours they spent exercising, the overall weight of her subjects decreased. This would be an example of a _________ correlation.
a) negative
b) positive
Consider This: A correlation is a measure of the relationship between two or more variables. A variable is anything that can change or vary. LO 1.7 Explain how researchers use the correlational technique to study relationships between two or more variables.
c) zero
Consider This: A correlation is a measure of the relationship between two or more variables. A variable is anything that can change or vary. LO 1.7 Explain how researchers use the correlational technique to study relationships between two or more variables.
d) causal
Consider This: A correlation is a measure of the relationship between two or more variables. A variable is anything that can change or vary. LO 1.7 Explain how researchers use the correlational technique to study relationships between two or more variables.
Topic: Scientific Research
ANS: a, Apply What You Know. LO 1.7 Explain how researchers use the correlational technique to study relationships between two or more variables. (2)
EOC Q1.15
A researcher wants to study the effects of texting on driving. Students in Group A drive a car in a computer game and see how many virtual accidents they have. Students in Group B are asked to drive the same virtual car, but they must respond to and send at least three texts. The number of virtual accidents is measured for each group. What is the independent variable?
a) texting
b) the virtual car
Consider This: The independent variable is the variable that is manipulated in an experiment. LO 1.8 Identify the steps involved in designing an experiment.
c) the number of virtual accidents
Consider This: The independent variable is the variable that is manipulated in an experiment. LO 1.8 Identify the steps involved in designing an experiment.
d) the group assignment
Consider This: The independent variable is the variable that is manipulated in an experiment. LO 1.8 Identify the steps involved in designing an experiment.
Topic: Scientific Research
ANS: a, Apply What You Know. LO 1.8 Identify the steps involved in designing an experiment. (2)
EOC Q1.16
A researcher asks an assistant to conduct a study on her behalf. She specifically tells her assistant only to share the results anonymously and not include the names of the students along with their scores. Such an experiment would be considered a
a) double-blind experiment.
b) single-blind experiment.
Consider This: Studies have highlighted the need for the experimenter to be “blind” as well as the participants in research. LO 1.9 Recall two common sources of problems in an experiment and some ways to control for these effects.