Chapter 2: Research Methods Flashcards
Independent variable
the aspect of an experiment that is made to systematically vary across the different conditions in an experiment. (variable being manipulated in an experiment, usually in psych it is some kind of behaviour)
Dependant variable
That aspect of an experiment that is allowed to freely vary to determine if it is affected by changes in the independent variable. (variable being measured or observed in an experiment)
Quasi-experimental variable
A variable that is inseparable from an individual and cannot be manipulated; however, group comparisons can be made based on that variable. (ex. Race or gender) used in comparative designs.
Functional relationship
The relationship between changes in an independent variable and changes in a dependent variable; a cause-and-effect relationship.
Stimulus
any event that can potentially influence behaviour
Response
a particular instance of behaviour, especially when it occurs in reaction to a stimulus.
Overt behaviour
Behaviour that can potentially be observed by an individual other than the one performing the behaviour.
Covert behaviour
Behavior (such as thoughts and feelings) that can be perceived only by the person performing the behaviour. Also known as private behaviours or private events (as skinner would call them)
Appetitive stimulus
something that an organism will seek out (positive/ reward)
Aversive stimulus
something that an organism will avoid (negative/punishment)
Motivating operation
a procedure that affects the appetitiveness or averseness of a stimulus. (2 types: establishing and abolishing operations)
ex: how much sugar put in a batch of cookies
Establishing operation
procedure that increases the appetitiveness or aversiveness of an event
Abolishing operation
procedure that decreases the appetitiveness or aversiveness of an event
ABAB / Reversal design
single subject design that consists of repeated alternations between a baseline phase and a treatment phase