Research Methods Ii: Independent Groups Design (Brief)

Front 1

Matched Group Design

Back 1

Not pure random groups, same number in each group but may conduct performance pretest and split similar in ability into separate groups. USEFUL WHEN NOT ENOUGH PARTICIPANTS FOR RANDOM SAMPLE TO BE EFFECTIVE

Front 2

Precision Matching

Back 2

Those with score X here those with score Y here

Front 3

Range Matching

Back 3

Those with scores from X to Z here and those with scores A to C here

Front 4

Rank Order Matching

Back 4

Match by ranking

Front 5

Yoked Group

Back 5

same as matched group but keep track of who is group opposed to not keeping track (e.g. how one person's attitude affects another)

Front 6

Natural Groups Design

Back 6

Group based on characteristic one cannot control (such as gender or age). Does not reveal which factor comes first (e.g. divorce and emotional instability)

Front 7

Descriptive Analysis

Back 7

Central tendency and variance

Front 8

Inferential Analysis

Back 8

Differences between groups

Front 9

T-test

Back 9

Independent groups, evaluates size of difference

Front 10

ANOVA's f-statistic

Back 10

higher value implies there is difference in groups based on IV manipulation

Front 11

F= ______ / _______

Back 11

MS between groups / MS within groups

Front 12

MS between groups

Back 12

systematic variance (due to IV)

Front 13

MS within groups

Back 13

error variance