Experimental Design Flashcards

1
Q

What is experimental designs?

A

How to allocate your participants to different conditions

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2
Q

What are the three experimental design?

A
  • Independent groups
  • Repeated measures
  • Matched pairs
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3
Q

Describe the independent measure:

A
  • Recruit group of participants
  • Randomly allocate to conditions
  • Measure the DV for each group
  • Compare the results for the two groups
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4
Q

Strengths of independent measures:

A
  • No order effects

- Reduced demand characteristics

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5
Q

Limitations of independent measures:

A
  • Participant variables

- More participants needed

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6
Q

Describe the repeated measures:

A
  • Recruit a group of participants
  • Does condition one, then conditions two
  • Compare the results for the two conditions
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7
Q

Strengths of repeated measures:

A
  • Reduced participant variables

- Fewer participants

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8
Q

Limitations of repeated measures:

A
  • Order effect e.g boredom

- Rise in demand characteristics

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9
Q

How to eliminate limitations of independent measures?

A

Randomly allocated to conditions to avoid bias

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10
Q

How to eliminate limitation of repeated measures?

A
  • Counterbalancing

- Single blind technique

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11
Q

Describe the matched pairs:

A
  • Recruit a group of participants
  • Find there personality
  • Find similar people
  • Pair them together
  • Separate them into each condition
  • Compare the results of the matched pairs
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12
Q

Strengths of the matched pairs:

A
  • Participant variable reduced

- No order effect

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13
Q

Limitations of the matched pairs:

A
  • Matching is not perfect
  • More participants required
  • Time consuming
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14
Q

How to eliminate limitations of matched pairs?

A
  • Use identical twins in different conditions

- Already closely matched

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