Week 5

Question 1

Selective reporting bias?

Answer 1

When published articles are more likely to report sig results.

Question 2

Selection bias?

Answer 2

Systematic error in the recruitment of P’s. To

Question 3

Performance Bias?

Answer 3

Differences in the performances of the P that occurs due to knowledge they have acquired about the study

Question 4

Attrition Bias

Answer 4

Happens when a P leaves a study

Question 5

Detection Bias

Answer 5

= Some part of the instrumentation makes a systematic error. Can be cause by poor data analysis. The person collecting may not be blind

Question 6

Reporting bias

Answer 6

Researcher does not report what he found. They only report sig results.

Question 7

Publication bias

Answer 7

Missing studies

You can tell if a range of studies have publication by looking at the funnel plot.

Question 8

Systematic error?

Answer 8

Multiple studies would get the same wrong answer. It is not imprecision (random error) and consistently over/under estimates an effect.

Question 9

Random Error?

Answer 9

The error sometimes over and sometimes under estimates and effect.