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MY Knowledge & Research > Week 4 > Flashcards

Week 4 Flashcards

1
Q

What is ‘selection bias’ a threat for & why?

A

internal validity - participant different to non-participants

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2
Q

What is ‘selection effects’ a threat to & why?

A

external validity - generalisability to other populations

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3
Q

What is ‘reactive effects’ a threat to & why?

A

external validity - response to being in a study (HAWTHORNE EFFECT)

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4
Q

What is ‘measurement effects’ a threat to & why?

A

external validity - meaurement and testing affecs gernalisability

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5
Q

Reliability addresses…

A

a repeated measurement of assess providing a consistent result given the same cirrcustances

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6
Q

The Hawthrone Effect is?

A

A participants response of being in a study

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7
Q

What does it mean if a outcome is ‘meaningful’?

A

outcomes are credible, meaningful and related to the issues

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8
Q

What does it mean if a outcome is ‘measureable’?

A

Aendable to dependable measurement in some way

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9
Q

What does it mean if a outcome is ‘responsive’?

A

change that occurs is demonstrated in outcome measure

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10
Q

What are the 6 threats to Internal Validity?

A 
History
Maturation
Testing
Instruentation
Mortality
Selection Bias
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11
Q

What are the 3 threats to external validity?

A

selection effects
reactive effects
measurement effects

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12
Q

What is ‘History’ a threat for and why?

A

internal validity - events happening outside of a study

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13
Q

What is ‘Maturation’ a threat for and why?

A

internal validity - changes over time

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14
Q

What is ‘Testing’ a threat for and why?

A

internal validity - changes due to experience of test

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15
Q

What is ‘Instrumentation’ a threat for and why?

A

internal validity - changes in measurement rather then change in status

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16
Q

What is ‘Mortality’ a threat for and why?

A

internal validity - people dropping out of study

17
Q

What is the main outcome for a study called?

A

primary outcome

18
Q

What are the secondary outcomes?

A

other outcomes of intrest

19
Q

What 5 things make a ‘appropiate’ outcome

A 
Meaningful
Measuable
Responsive
Valid
Reliable
20
Q

What is reliabilty?

A

whether repeated measurement of assessents will provide a consistent result in same circcusatnces

21
Q

What is validity?

A

do you measure what you intend to measure

22
Q

What is internal validity?

A

study results legitmate because of the way the study was constructed

23
Q

What is external validity?

A

whether results are transferable to other groups

24
Q

Whats another nae for ‘external validity’?

A

generalisability

25
Q

Whats the effect of not being internal validity?

A

you cannot have external validity

MY Knowledge & Research (10 decks)

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