Research Methods - Research Methods P1 Flashcards

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1
Q

What is the aim of Lab Experiments?

A

To control all relevant variables except for the IV which is altered to see what the effect is

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2
Q

What setting is a Lab Experiment conducted in? Give an example.

A

Artificial setting e.g. Milgram (1963)

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3
Q

Give 3 pros of Lab Experiments.

A
  1. Control - the effects of confounding variables are minimized
  2. Replication - strict controls mean you can run the study again to check the findings
  3. Casual Relationships - ideally, it’s possible to establish whether one variable actually causes changes in another
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4
Q

Give 3 cons of Lab Experiments.

A
  1. Artificial - experiments might not measure real-life behaviour (lacks ecological validity)
  2. Demand Characteristics - pps may respond according to what they think is being investigated, which can bias the results
  3. Ethics - Deception is often used, making informed consent difficult
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5
Q

Where are Field Experiments conducted? Give an example.

A

Outside the Lab. Behaviour is measured in a natural environment e.g. on the train. A key variable is still altered so that it’s effect can be measured. Zimbardo (1971)

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6
Q

Give 3 pros of Field Experiments

A
  1. Casual Relationships - casual relationships can be established, however it’s difficult to do in a field experiment
  2. Ecological Validity - field experiments are less artificial than those done in a Lab, so they relate to real life better
  3. Demand Characteristics - these can be avoided if pps don’t know they’re in a study
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7
Q

Give 2 cons of Field Experiments

A
  1. Less Control - confounding variables may be more likely in a natural environment
  2. Ethics - pps who didn’t agree to take part might experience distress and often can’t be debriefed. Observation must respect privacy
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8
Q

How do Natural Experiments work? Give an example.

A

The researcher looks at how an IV, which isn’t manipulated, affects a DV. The IV isn’t manipulated because it’s an event which occurs naturally. e.g. Hodges and Tizard (1989)

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9
Q

Give 3 pros of Natural Experiments.

A
  1. Ethical - it’s possible to study variables that would be unethical to manipulate otherwise
  2. Demand Characteristics - pps might not know they’re in a study, so their behaviour is likely to be more natural
  3. Ecological Validity - they tend to be less artificial than Lab experiments
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10
Q

Give 2 Cons of Natural Experiments.

A
  1. Casual Relationships - because the IV isn’t manipulated and because other variables could be having an effect, it’s hard to establish casual relationships
  2. Ethics - deception is often used, making informed consent difficult. Confidentiality may be compromised if the community is identifiable
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11
Q

How do Quasi Experiments work?

A

The researcher isn’t able to use random allocation to put pps in different conditions. This is usually because the IV is a particular feature of the pps e.g. gender.

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12
Q

Give 2 pros of Quasi Experiments.

A
  1. Control - quasi experiments are often carried out under controlled conditions
  2. Ecological Validity - the research is often less artificial than Lab studies, so results are likely to be generalized to real life
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13
Q

Give 2 cons of Quasi Experiments.

A
  1. Participant Allocation - pps can’t be randomly assigned to each condition, and so confounding variables may affect results
  2. Casual Relationships - it can be hard to establish cause and effect because the IV isn’t being directly manipulated
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