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Manual Event (Session ID,DateTime,Event) = h01rvgnn6ce5mpm5cpi5tem511 20211128021059 /communities/what-can-i-do-to-prevent-selection-bias/

What can I do to prevent selection bias?

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Discussion thread: Poverty, Social Disadvantage, and Social Protection
Stella
13 May 2020
What can I do to prevent selection bias?

What can I do to prevent selection bias?

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Tsz Ching
19 May 2020

Welcome. I am happy to share!

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Stella
19 May 2020

Thanks!

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Tsz Ching
19 May 2020

You may use random assignment to assign participants into groups to control the difference between the groups.

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Rebecca@yahoo.com.hk
27 November 2021
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The current restrictions and rules on public gatherings may make older adults more isolated. Therefore, we hope to understand the potential difference in the subjective feelings of social isolation between community-dwelling and institutionalized elders. But the reality does not allow us to adopt randomization. Could you please give us some advice?
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Rebecca@yahoo.com.hk
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There are many dropout cases in my samples of older adults living in the community. I wonder can I use the pretest score to examine differences among the remaining group members?
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If our team plans to conduct a longitudinal study to examine the impacts of a program for older adults, may I ask the function of its pretest?
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