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5 Questions

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Understanding Biases in Research

Created by

@DashingPortland

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Questions and Answers

What is bias defined as in the context of results?

A systematic error or deviation from the truth (correct)

A deviation from the mean

A statistical anomaly

A random error

What can biases lead to in estimating the true intervention effect?

Only under-estimation

Only over-estimation

No effect at all

Either under-estimation or over-estimation (correct)

How can biases vary?

Only in magnitude (correct)

In both direction and magnitude

They do not vary

Only in direction

What is a characteristic of bias in results?

<p>It is systematic</p> Signup and view all the answers

What is the relationship between bias and the truth?

<p>Bias is a deviation from the truth</p> Signup and view all the answers

Study Notes

Bias in Results

Bias is defined as a systematic error or deviation from the truth in results.
Biases can lead to two possible outcomes:
- Under-estimation of the true intervention effect
- Over-estimation of the true intervention effect
The magnitude of biases can vary.

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Description

This quiz explores the concept of bias in research, its effects on results, and how it can lead to under or over-estimation of the true intervention effect.