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Psychology > Experiments > Flashcards

Experiments Flashcards

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1
Q

What is an independent variable

A

What the researcher CHANGES to see effect on dv

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2
Q

What is a dependent variable

A

The variable they are MEASURING

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3
Q

What is a extraneous variable

A

A variable other than the iv which could affect dv so needs to be controlled

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4
Q

What is a confounding variable

A

Other than iv which directly affects dv by mistake

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5
Q

What is a strength of a lab experiment

A

Quantitative
Easy to replicate
Most scientific
High control of iv

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6
Q

What is a weakness of a lab exp

A

Lacks ecological validity
Can’t generalise
Demand characteristics
Social desire ability bias

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7
Q

What is a strength of a field exp

A

Better ecological validity
More realistic
Reduction in demand characteristics

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8
Q

What is a weakness of field exp

A

Lack of control
More expensive
Time consuming
Difficult to replicate

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9
Q

What is a strength of quasi exp

A

Fewer demand characteristics
Avoid experimenter bias
Only way to research topics

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10
Q

What is a weakness of quasi exp

A

Lack of control

More difficult to replicate

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11
Q

What is independent measures

A

Participants only take part in ONE condition of experiment

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12
Q

What is repeated measures

A

Participants take part in BOTH conditions of experiment

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13
Q

What is matched pairs

A

Participants are matched in each condition for characteristics that may affect performance

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14
Q

What is a strength of independent measures

A

Less chance of demand characteristics

Less order effects

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15
Q

What is a strength of repeated measures

A

Less time consuming
No individual differences
Less costly

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16
Q

What is a strength of matched pairs

A

Less chance of individual differences
Less chance of demand characteristics
Less chance of order effects

17
Q

What is a weakness of independent measures

A

Individual differences
More time consuming
More money

18
Q

What is a weakness of repeated measures

A

Demand characteristics
Order effects
‘Screw you’ effect

19
Q

What are order effects

A

Order in which condition are presented can effect results

20
Q

What do experiments look for

A

They look for a difference

21
Q

What is an alternate hypothesis

A

It says there WILL be a SIGNIFICANT DIFFERENCE

Also knows as a experimental hypothesis

22
Q

What is a one tails / directional hypothesis

A

These state the DIRECTION of the experiment

23
Q

What is a two tailed/ non direction hypothesis ?

A

These don’t state the direction of the experiment

24
Q

What is a null experiment

A

The hypotheses says there WONT BE a SIGNIFICANT DIFFERENCE

25
Q

What do correlations look for?

A

A RELATIONSHIP

26
Q

Which is an alternate hypothesis

A

It says there WILL be a significant RELATIONSHIP

Correlational hypothesis

27
Q

Which is a one tailed/ directional hypothesis?

A

This states the direction of the correlation

28
Q

What is a two tailed/ non directional hypothesis?

A

These don’t state the direction of the correlation

29
Q

What is a null hypothesis?

A

This hypothesis says there WONT be a significant RELATIONSHIP

Psychology (9 decks)

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