Experiments Flashcards

(13 cards)

1
Q

Define experiment:

A

A way to carry out an investigation, where one variable is manipulated and this change affects another variable

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2
Q

Three types of experimental designs:

A
  • independent measures
  • repeated measures
  • matched pps
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3
Q

Independent measures:

A

Where pps only take part in one condition

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4
Q

Advantage of independent measures:

A
  • less likely to figure out aim (demand characteristics)

- results can be compared to eachother

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5
Q

Disadvantage of independent measures:

A

-individual differences may affect results

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6
Q

Repeated measures:

A

When all pps participate in all of the conditions

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7
Q

Advantage of repeated measures:

A

Any individual differences of pps will affect the results of all conditions so unlikely to bias the findings

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8
Q

Disadvantage of repeated measures:

A

Pps may perform the same or similar tasks more than once (practice effect and order effect).

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9
Q

Matched pps:

A

Pps are matched to a corresponding pps of another group (same age or intelligence)

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10
Q

Different types of experiments:

A

Lab
Field
Quasi

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11
Q

Quasi experiments:

A

IV is naturally occurring
-age/ eye colour

+enable things to be researched that may once be deemed as unethical

  • difficult to control extraneous variables
  • hard to replicate
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12
Q

Lab experiments:

A

-conducted in a laboratory setting
+variables controlled
-low ecological validity

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13
Q

Field experiments:

A

Conducted in a natural environment to pps
-variables cannot be controlled
+pps less likely to be aware that they are part of an experiment
+pps may behave more normally meaning results are more valid

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