Chapter 2: Psychological Methods
Gathering information by asking people directly is generally done through?
a survey
What is a hypothesis?
an educated guess about the answer to a research question
Which of the following are used by psychologists to investigate in depth an individual or a small group?
case studies
A study must be replicated in order to?
confirm its findings
Which observation method do psychologists use to compare the behavior of individuals in different age groups?
cross-sectional method
What is the final step in the research process?
drawing conclusions about research questions and the hypotheses
In an experiment, the independent variable is the?
factor in an experiment that researchers manipulate
To ensure that people are not harmed by experimental treatments, scientists?
follow ethical standards
When people agree to participate in a research study, they are?
giving informed consent
What is the first step in conducting research?
Forming a research question
What research method studies participants over a period of time?
longitudinal method
Researchers use correlation to?
measure how closely one thing is related to another
The relationship between good nutrition and good health is an example of?
positive correlation
When researchers want to answer questions about cause and effect, they use?
the experimental method
Which of the following can skew the results of a study?
volunteer bias