Experimental design

Question 1

What is an experimental condition?

Answer 1

where the p’s ARE exposed to the manipulation of the IV

Question 2

What is a control condition?

Answer 2

where the p’s are NOT exposed to the manipulation of the IV

Question 3

What are the 3 types of experimental design?

Answer 3

-repeated measures
-independent groups
- matched pairs

Question 4

What are the features of an experimental design?

Answer 4

• order effects
• demand characteristics
• number of participants
• participant variables

Question 5

What is repeated measures?

Answer 5

• p’s take part in both the control and experimental condition.
• performance in both conditions is compared

Question 6

STRENGTHS/WEAKNESSES of repeated measures

Answer 6

STRENGTHS
- participant variables
- number of p’s
WEAKNESSES
- order effects
- demand characteristics

Question 7

What is counter balancing for repeated measures?

Answer 7

• when participants are split into two groups and set to different conditions.
• reduces order effects
• group 1 do EC then CC
• group 2 do CC then EC

Question 8

What is independent groups?

Answer 8

• p’s take part in only 1 condition
• can be done if the IV is naturally occurring
• p’s randomly selcted to take part in either the EC/CC

Question 9

STRENGTHS/WEAKNESSES of independent groups

Answer 9

STRENGTHS
- order effects
- demand characteristics
WEAKNESSES
- participant variables
- number of p’s

Question 10

What is matched pairs?

Answer 10

• form of independent groups design
• researcher uses pairs of p’s who have been matched for participant variables that could influence the DV.
  -One of the pair do the EC the other does the CC

Question 11

STRENGTHS/WEAKNESSES of matched pairs

Answer 11

STRENGTHS
- participant variables
- number of p’s
WEAKNESSES
- demand characteristics
- order effects