EXPE CHAPTER 11: WITHIN-SUBJECTS DESIGNS Flashcards
subjects are assigned to more than one treatment condition.
WITHIN-SUBJECTS DESIGN
an experiment’s ability to detect the independent variable’s effect on the dependent variable
STATISTICAL CONCEPT OF POWER
desirable when it allows us to detect practically significant differences between the experimental conditions.
STATISTICAL POWER
assigns subjects to all levels of two or more independent variables.
WITHIN-SUBJECTS FACTORIAL DESIGN
are positive (practice) and negative (fatigue) performance changes due to a condition’s position in a series of treatments
ORDER EFFECTS
encompasses both positive and negative order effects.
PROGRESSIVE ERROR
a method of controlling order effects by distributing progressive error across different treatment conditions
COUNTERBALANCING
a form of PROGRESSIVE ERROR where performance declines on the DV due to tiredness, boredom, or irritation.
FATIGUE EFFECT
Subject performance on the dependent variable may improve across the conditions of a within-subjects experiment and these positive changes are called
may be due to relaxation, increased familiarity with the equipment or task, development of problem-solving strategies, or discovery of the purpose of the experiment.
PRACTICE EFFECTS.
when the treatment conditions affect each other
CARRYOVER EFFECTS