Module 3
The mathematical score that indicates how much two attributes are related to each other is called the
correlation coefficient.
The value of random assignment is that it:
ensures the equivalence of the experimental and control groups.
The independent variable in an experiment is defined as the:
factor that the experimenter manipulates.
A negative correlation between two variables suggests that
high scores on one variable relate to low scores on the other.
Research in psychology begins with
identifying the questions
In an experiment testing the effect of caffeine on alertness in students with attention deficit disorder, the caffeine is the
independent variable.
If you were to spend some time watching people in the checkout line of a local discount store to see how many read the tabloid newspapers displayed next to the register, you have chosen the __________ research method to answer your question.
naturalistic observation
The primary weakness of the case study method is
nongeneralizability
A hypothesis must be stated in a way that allows it to be tested through measureable and observable procedures. This restatement is often called a(n):
operational definition
The process of attempting to equate the experimental group and the control group before the beginning of an experiment is called
random assignment
What theory did Latane and Darley propose to explain the lack of bystander help to Kitty Genovese?
the diffusion of responsibilty
When a researcher reports that a study's outcome was significant, this suggests that
the results were unlikely to have happened by chance
Which of the following is the major problem involved in conducting a correlational study?
Cause-and-effect conclusions cannot be drawn
Which of the following approaches might be used when trying to conduct a case study of chief executive officers of corporations?
Intensively interview a small number.
In correlational research, the strength of the relation between two variables is indicated by:
a mathematical score ranging from +1.0 to -1.0.
Which of the following is the final step in psychology research?
communicate findings
