Chapter 2 Research Methods

In what type of study does a researcher study an individual subject in depth?

• Naturalistic observation

• Laboratory observation

• Case study

• Survey

What does it mean if two variables have a positive correlation?

• As one variable increases, so does the other

• As one variable increases, the other decreases

• The correlation between the two variables is 0

• The correlation between the two variables is greater than 1.0

Which of the following is a research method that allows a researcher to get information about a large number of subjects relatively inexpensively and easily?

• Naturalistic observation

• Case study

• Laboratory observation

• Survey

This research method is a measure of the extent to which two variables change together, and thus of how well either variable predicts the other

• Correlational
• Experiments
• Case Study
• Survey
• Observational

Which ethical principle requires that at the end of the study participants be told about the true purpose of the research?

• Institutional Review Board Approval
• Informed Consent
• Confidentiality
• Debriefing

What must a researcher do to fulfill the ethical principle of informed consent?

• Keep information about participants confidential
• Allow participants to choose whether to take part
• Provide participants with a pre-experimental explanation of the study
• Protect participants from potential harm

This is a method of research where an investigator manipulates one or more factors (independent variables) to observe the effect on some behavior or mental process (the dependent variable).

• Experiments
• Case Study
• Survey
• Observational
• Correlational

The disadvantage of this method of descriptive research is that the data is limited to only answering the question(s) asked. These limitations lead to biases, ambiguous conclusions, and low participation rates among research populations.

• Survey
• Observational
• Correlational
• Experiments
• Case Study

A frequency distribution

• is a way to present data visually in a table
• depicts a correlation between two variables using a histiogram
• is the same thing as a scattergram
• typically lists the frequency of each score on the horizontal axix

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

You psychology professor wants to describe the average score on your first psychology test.  Which measure of central tendency is your professor most likely to use? 

• mean
• median
• mode 
• harmonic mean