Psychology INTRODUCTION TO RESEARCH EXAM 2 QUESTIONS AND ANSWERS RATED A.
1. The characteristics of the subjects in an experiment
that cannot be manipulated by the researcher; sometimes used to select subjects into groups
2. often seem like real experiments, but they lack one or
more of its essential elements, such as manipulation
of antecedents & random assignment to treatment
conditions
3. an error that occurs when the value of an extraneous
variable changes systematically along with the IV in
an experiment; an alternative explanation for the findings that threatens internal validity
subject variable
quasi-experimental deign
confounding
4. the specific behavior that a researcher tries to explain dependent variin an experiment; the variable that is measured
5. the explanation of the meanings of IVs; defines exactly what was done to create the various treatment
conditions of the experiment
6. a variable other than an IV or DV; a variable that is not
the focus of an experiment but can produce effects
on the DV if not controlled
7. the variable that the experimenter intentionally manipulates
8. the two or more values of the IV manipulated by the
experimenter
9. as assessment to determine whether the IV was manipulated successfully
10. the description of exactly how a variable in an experiment is measured
11. the specification of the precise meaning of a variable within an experiment; defines a variable in terms
able (DV)
experimental operational defintion
Extraneous variable
independent variable (IV)
Levels of the IV
Manipulation
check
measured operational definition
Operational definition