Interpreting Statistical Findings

Question 1

Randomised control trial

Answer 1

A standardised experimental intervention which involves 2 groups, that are representative of the target population, a control group and an experimental group.
The groups are large enough to detect a statistical difference and are divided by randomised allocation.

Question 2

What is a double blind trial

Answer 2

Double blind trials are where neither the clinician or the patient know whether they are in the control (placebo) group or the experimental group

Question 3

Validity

Answer 3

Measuring what it is supposed to measure

Question 4

Reliability

Answer 4

The extent to which a measurement gives results that are consistent when repeated

Question 5

What do statistical tests do?

Answer 5

They test the effectiveness of an intervention (experiment)

Question 6

Hypotheses

Answer 6

To determine which outcome variables need to be measured and tested and reflecting a degree of certainty with which outcome can be predicted

Question 7

What is the purpose of the control group?

Answer 7

It allows potential sources of bias to be identified by creating a situation where the independent variable (what is being tested on the experimental group) cannot influence the results

Question 8

What allows you to create a representative sample of adequate size

Answer 8

Sampling procedure
Demographic
Sampling size
Recruitment process