In 1990, a case-control study was conducted to investigate the positive relationship between artificial sweetener use...
- In 1990, a case-control study was conducted to investigate the positive relationship between artificial sweetener use and bladder cancer. Controls were excluded from being in the study if they had any obesity-related condition. Which one of the following biases likely occurred?
- Ecologic Fallacy
- Exclusion (selection) bias
- Confounding
- Recall (information) bias
Homework Answers
The correct option is (b) Exclusion (selection) bias.
It is because in exclusion bias, some patients are excluded from trials or analyses. This is a type of selection bias, in which the sample for study involves inclusion of individuals, groups in a way that proper randomization is not been achieved. And there is a prior bias in selecting a particular group for a study such that the results of the experiment are also biased.
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In 1990, a case-control study was conducted to investigate the
positive relationship between artificial sweetener use...
In 1990, a case-control study was conducted to investigate the positive relationship between artificial sweetener use...
In 1990, a case-control study was conducted to investigate the positive relationship between artificial sweetener use and bladder cancer. Controls were excluded from being in the study if they had any obesity-related condition. Which one of the following biases likely occurred? Ecologic Fallacy Exclusion (selection) bias Confounding Recall (information) bias
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A case-control (or retrospective study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash. Results are given in the accompanying table. Using a 0.05 signif
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A case-control (or retrospective) study was conducted to
investigate a relationship between the colors of helmets worn by
motorcycle drivers and whether they are injured or killed in a
crash. Results are given in the accompanying table. Using a 0.01
significance level, test the claim that injuries are independent
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Questions: Compute the test statistic (Round to three decimal
places as needed.) and find the critical value. Please list steps.
Thank you!
Do Homework - dalton jones -...
In the 1990's, a long-term national women's health study looked at the relationship between use o Hormone Replacement Therapy (HRT), which contains estrogen, and incidence of breast cancer and heart attacks in middle-aged women. The study involved tracking the medical history of 93,676 women who were followed for 8 to 12 years. About half of the women reported that they had used HRT, and the other half had not. Those who had taken HRT had higher rates of breast cancer...
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