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10. Suppose you are selecting cases of a shoulder injury. Many older people have experienced this injury to some degree, but have never been treated for it. Persons who are treated by a physician are far more likely to be diagnosed (and identified as cases) than persons who are not treated by a physician. If a study only recruits cases among patients receiving medical care, what kind of bias will be introduced and how do you control it?

Answers

Answer 1

The bias introduced in this scenario is known as selection bias or ascertainment bias.

What is the bias?

The study is only recruiting cases among patients receiving medical care, which excludes individuals who have experienced a shoulder injury but have not sought medical attention. This can lead to an overestimation of the prevalence or incidence of the shoulder injury among the population.

To control for this bias, the study can employ several strategies. One such strategy is to use multiple sources of data to identify cases. For example, the study can recruit cases from both hospital records and community surveys to capture both treated and untreated cases. This can help to reduce the selection bias and provide a more accurate representation of the population.

Learn more about bias:https://brainly.com/question/15135672

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