Flashcards in KL Ch. 21 Randomized group and correlated groups Deck (8)
Loading flashcards...
1
Factorial Design
the structure of research in which two or more independent variables are juxtaposed in order to study their independent and interactive effects on a dependent variable. The simplest factorial design is 2x2, but designs can have more than 2 variables (3x2x2)
2
Randomized subject designs
control for history and maturation because so little time elapses between manipulation (x) and observation (y)
3
Correlated Groups
There is a systematic variance in the dependent variable measures due to the correlation between the groups on some variable related to the dependent variable. This design capitalizes on differences between units
4
Correlated Groups correlations
o use the same units (ex: participants)
o match units on one or more independent variables related to the dependent variable.
o use more than one group of units (ex: classes, schools)
5
One Group, Repeated Trials
Pretest sensitization and maturation are problems with this design. In an analysis of ‘time’, this is the implicit design
6
• Two groups, experimental group-control group designs
participants matched, then assigned to experimental and control groups at random
7
Factorial Correlated Groups
factorial design with units notion
8
