Chapter 8 Flashcards
(14 cards)
An experiment in which different subjects are assigned to each group also called independent group design
Between subjects design
The loss of subjects you decide to leave an experiment
Attrition
A problem that may occur in repeated measures design if the effects of one treatment are still present when the next treatment is given
Carryover effect
A variable that is not controlled in a research investigation
Confounding variable
A method of controlling for order effects in a repeated measures design buy either including all orders of treatment presentation or randomly determining the order for each subject
Counterbalancing
Deterioration in performance from the first to the second condition as a research participant becomes tired or bored or distract
Fatigue effect
The certainty with which results of an experiment can be attributed to the manipulation of the independent variable rather then some other confounding variable
Internal validity
A technique to control for order affects without having all possible orders
Latin square
Improvement in participant performance with repeated testing
Learning effect our practice effect
A method of assigning subjects to groups in which pairs of subjects are first matched on some characteristic and then individually assigned randomly to groups
Matched pairs design
In repeated measures design the effect that the order of introducing treatment has on the dependent variable
Order effect
A true experimental design in which the dependent variable is measured only once, after manipulation of the independent variable
Post test – only design
Use of a random chance procedure to determine the condition in which an individual will participate
Random assignment
Differences in the types of subjects who make up each group in an experimental design; this situation occurs when participants select which group they are to be assigned to
Selection differences
