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elena55 [62]
3 years ago
5

Why do legs on a head frame always slope towards the winch​

Social Studies
1 answer:
OlgaM077 [116]3 years ago
5 0

Answer:

The tension in the cable pulling the whole frame in that direction

Explanation:

The sloping legs prevent the head frame from toppling or falling over.

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The correct answer is they provide a basis for democratic expression

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a.one of the major problems with cohort studies is loss to follow-up. b.confounders are not a problem with cohort studies since
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Loss of follow-up is a problem in most cohort studies and often introduces bias. It is a situation in which a researcher loses contact with a subject, resulting in missing data. Too many subjects failing follow-up diminish the internal validity of the study.

<h3>What is follow-up loss in cohort studies? </h3>
  • Follow-up loss introduces bias (observed deviation of relevant measures from what would have been observed without bias) if there is a difference in the likelihood of loss due to follow-up  related to exposure status and outcome.
  • In the clinical research trials industry, loss due to follow-up is defined as patients who were actively participating in a clinical research trial at some point but who lost themselves (due to errors in the computer tracking system or due to unavailability).
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<h3>What are advantage and disadvantages of cohort studies?</h3>
  • In general, the main advantage of cohort studies is the ability to study multiple exposures and multiple endpoints in a single cohort. This recording allows you to select index groups, so you can explore rare recordings.
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To learn more about cohort study visit:

brainly.com/question/4562396

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