Study Designs & Graphs at University Of South Australia | Flashcards & Summaries

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How could physical activity be promoted at each level of the ecological model? 


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 Level 1: Individual reinforcing physical activity as part of individual behaviour 

Level 2: Close/Peer peer-led interventions in workplaces or schools, engaging with families 

Level 3: Environmental provision of green space, walking trails and bike lanes. 

Level 4: Societal a mass media campaign encouraging leisure activities such as playing team sports 

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When graphing behaviour over time, if I want to highlight to the reader that there has been a reduction in the variability in the behaviour post-intervention, I might use 


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Range bars

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What is a Single Systems Design?

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Behaviour is measured before and after an intervention designed to change behaviour. 


Least robust, cant generalise

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TESTE DEIN WISSEN

There may have been a change in level, and a change in rate in the intervention period compared to the baseline period.  Which graphical tools will you use?


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Mean bars could be used to illustrate a change in level. 

Trend lines could be used to illustrate a change in rate.  

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What is frequency?

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How often does the behaviour occur?

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What is interval?

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How long is the period between observed behaviours?

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What is magnitude?

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How large/intense/much are observations of the behaviour?

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What is an ABAB/Withdrawal design?

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Minimum experimental design. Reduces impact of external influences.

Ethical issues - will it hurt the person withdrawing the intervention?

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What is duration?

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How long does the behaviour occur for?

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What is a multiple baseline?

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At least 3 people

Start times staggered

Rule out other potential reasons for change

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What are T-tests against population norms? 

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TESTE DEIN WISSEN

Useful for evaluating ancillary measures with available normed values. It allows individual data from questionnaires to be compared to published values 

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TESTE DEIN WISSEN

In Single Systems Designs, why is it necessary to understand the way in which data is trending in the baseline phase(s) before evaluating whether a change has occurred following an intervention? 

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TESTE DEIN WISSEN

If data are already trending in a certain direction prior to the intervention, any observations may be the results of pre-existing drift. It looks like the intervention has made a difference, when it has not. 

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Q:

How could physical activity be promoted at each level of the ecological model? 


A:

 Level 1: Individual reinforcing physical activity as part of individual behaviour 

Level 2: Close/Peer peer-led interventions in workplaces or schools, engaging with families 

Level 3: Environmental provision of green space, walking trails and bike lanes. 

Level 4: Societal a mass media campaign encouraging leisure activities such as playing team sports 

Q:

When graphing behaviour over time, if I want to highlight to the reader that there has been a reduction in the variability in the behaviour post-intervention, I might use 


A:

Range bars

Q:

What is a Single Systems Design?

A:

Behaviour is measured before and after an intervention designed to change behaviour. 


Least robust, cant generalise

Q:

There may have been a change in level, and a change in rate in the intervention period compared to the baseline period.  Which graphical tools will you use?


A:

Mean bars could be used to illustrate a change in level. 

Trend lines could be used to illustrate a change in rate.  

Q:

What is frequency?

A:

How often does the behaviour occur?

Mehr Karteikarten anzeigen
Q:

What is interval?

A:

How long is the period between observed behaviours?

Q:

What is magnitude?

A:

How large/intense/much are observations of the behaviour?

Q:

What is an ABAB/Withdrawal design?

A:

Minimum experimental design. Reduces impact of external influences.

Ethical issues - will it hurt the person withdrawing the intervention?

Q:

What is duration?

A:

How long does the behaviour occur for?

Q:

What is a multiple baseline?

A:

At least 3 people

Start times staggered

Rule out other potential reasons for change

Q:

What are T-tests against population norms? 

A:

Useful for evaluating ancillary measures with available normed values. It allows individual data from questionnaires to be compared to published values 

Q:

In Single Systems Designs, why is it necessary to understand the way in which data is trending in the baseline phase(s) before evaluating whether a change has occurred following an intervention? 

A:

If data are already trending in a certain direction prior to the intervention, any observations may be the results of pre-existing drift. It looks like the intervention has made a difference, when it has not. 

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