Experimental and Research Design

Question 1

Repeated measured design definition

Answer 1

each participant takes part in every condition

Question 2

Strengths of repeated measured design

Answer 2

Controls participant variables (same person)
Fewer participants

Question 3

Weaknesses of repeated measured design

Answer 3

can guess aims (leading to demand characteristics, guess aim when they repeat study)

Question 4

Independent groups design definition

Answer 4

different participants allocated to 2+ experimental groups, representing different IV levels

Question 5

strengths of independent groups

Answer 5

avoids order effects (only tested once)
+ Less liely to guess aim (more pps)

Question 6

Weaknesses of independent grups

Answer 6

participant variables

Question 7

Matched pairs design

Answer 7

participants paired or key variables

Question 8

Strengths of matched pairs design

Answer 8

conrols participant variables
avoids order effects

Question 9

Weakness of matches pairs

Answer 9

time consuming
doesnt control all participant variables

Question 10

How to control matched groups design

Answer 10

use large sample

Question 11

How to control independent

Answer 11

randomisation