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Old 04-29-2012
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Stats What type of bias is this?

In an study on women with recent delivery to assess the association with pregnancy problems and cardiac anomalies in children, the experimenters noticed that mothers of children born with an anomaly are more likely to remember different exposures or pregnancy problems than mothers of "normal” children. What kind of bias is there in this study?

A) Lead-time bias
B) Late-Look bias
C) Confounding bias
D) Recall bias
E) Sampling bias
F) Design bias
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D) Recall bias ?


I've seen this question before .. can't remember where though.
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I'd say late-look is more appropriate than recall
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Recall bias
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Quote:
Originally Posted by DocSikorski View Post
I'd say late-look is more appropriate than recall
Late look bias is when a late diagnosis of the disease is falsely perceived as an increased survival time.
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Late look bias is when a late diagnosis of the disease is falsely perceived as an increased survival time.
dang i need to review this crap again, hate it
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dang i need to review this crap again, hate it
haha yeah i recently reviewed biostats and epi so dont go too hard on yourself
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it should be recall but how can it be so simple :not sure:
something is fishy
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btw just reread and realized i confused the definition of Late look bias and lead time bias !! gahhh

Lead time bias is when a late diagnosis of the disease is falsely perceived as an increased survival time.

Late look bias is when the information is gathered at an inappropriate time.
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Originally Posted by Hope2Pass View Post
btw just reread and realized i confused the definition of Late look bias and lead time bias !! gahhh

Lead time bias is when a late diagnosis of the disease is falsely perceived as an increased survival time.

Late look bias is when the information is gathered at an inappropriate time.
lead time is when early diagnosis not late,
when you lead the time and find them before they should be and you think they live long

late look is when you look late and half suffering already dead
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Correct Answer Answer is D.

Answer is D.
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Old 04-30-2012
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Quote:
Originally Posted by Kabutar111 View Post
it should be recall but how can it be so simple :not sure:
something is fishy
I did so many questions wrong because I thought they were too easy to be true even though I knew them. So stuff happens
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