Variables
Variables used in a correlational design
2 variables
Two or more subject groups are compared
Between Subjects Design
Which descriptive stat is badly affected by outliers
Mean
Variables used in a correlational design with regression analysis
predictor(s) and criterion(s)
Two-Group Experimental design has...
Two groups - 1 treatment and 1 control
Name 2 measurements of central tendency
mean, median, mode
Variables used for comparison
IV and DV
Matched (subject/group) Design
What is Discrete Data
Data based on set/fixed values (e.g., age class) - nominal or ordinal
Factorial design has
2+ IV and 1 DV
Has more than 2 groups, with multiple levels
Multiple Group Design
What is continuous data
Any value within a range - interval or ratio data
Multivariate Experimental Design has
1 IV and 2+ DV
Same subjects are tested more than once
Within Subjects Design
Descriptive stat that separates the higher half with the lower half
Median
Which variable can be manipulated
IV
Experimental research must have
A control group