In an experiment, participants are randomly assigned to treatment conditions ____
a. to help protect the internal validity of the study
b. to help protect the external validity of the study
c. to help protect both the internal and external validity
d. as an alternative to manipulation of variables
a
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Middle-class adolescents are most likely to drop out of school
a. if their parents did not complete high school. b. if they are involved in extracurricular activities. c. if they are bored with school or feel alienated. d. if they are raised by single parents.
Bill conducts an experiment in which he pairs the word psychologist with words such as nasty, evil, and corrupt. Later Bill asks his subjects to give their opinion of various professions by rating them on a scale from very positive to very negative. Of the following professions, _______ will probably receive the lowest rating
a. mathematician b. accountant c. biologist d. social worker
For a linear relationship to exist, all the points must fall on a straight line
Indicate whether the statement is true or false
A disorder in which intruding thoughts that occur again and again are followed by repetitive, ritualistic behavior meant to lower the anxiety caused by the thoughts is called____________ disorder
a. obsessive-compulsive b. delusional c. posttraumatic stress d. passive-aggressive e. panic