4.4 Experimental Method Flashcards
Another characteristic of the experimental method is that it attempts to eliminate the influence of all potential confounding third variables on the dependent variable. This is generally referred to as ____ of ____ variables.
control of extraneous
The experimental method reduces ambiguity in the interpretation of results. With the experimental method, one variable is ____ and the other is then ____.
manipulated, measured
Any variable that cannot be held constant is controlled by making sure that the effects of the variable are ____.
random
Through randomisation, the influence of any extraneous variables is ____ in the experimental conditions.
equal
With ____ ____, all extraneous variables are kept constant. If a variable is held constant, it cannot be responsible for the results of the experiment.
experimental control
Experimental control is accomplished by treating participants in all groups in the experiment ____; the only difference between groups is the ____ variable.
identically, manipulated variable
The experiment method eliminates the influence of confounding variables by ____.
randomisation
Randomisation ensures that the extraneous variable is just as likely to ____ one experimental group as it is to affect the other group.
affect
To eliminate the influence of individual characteristics, the research assigns participants to the two groups and a ____ fashion.
random
This ability to ____ ____ research participants to the conditions in the experiment is an important difference between the experimental and non-experimental methods.
randomly assign
Direct experimental control and randomisation eliminate the ____ of any extraneous variables (keeping variables constant across conditions).
influence
Any difference between groups on the ____ variable can be attributed to the influence of the ____ variable.
observed, manipulated
