Validity, Reliability, Accuracy
The test for VALIDITY
ACER
ACER
Aim, Control, Equipment, Range
Checking for ACCURACY (2nd hand)
Can the same information be found by other VALID sources - is it RELIABLE
To ensure RELIABILITY (2nd hand)
Check the credentials of the author, the type of publication and the date of publication
Validity
Describes how sound a process is
Reliability
How likely it is that the same results will be found by others - consistency
Assessing VALIDITY
Look at individual criteria (ACER) and give an overall assessment
What is ACCURACY impacted by?
RELIABILITY and VALIDITY
To ensure RELIABILITY (1st hand)
Repeat the experiment a number of times and remove/average outliers
Accuracy
The degree of closeness between results and what is true
Checking for ACCURACY (1st hand)
The design of the experiment (is it VALID?)
