Test retest reliabilty with surveys

1. Test-Retest Reliability with Surveys

2. Test-Retest Reliability with Surveys
Students take the
survey on one
occasion

3. Test-Retest Reliability with Surveys
Respondent Average Score
Bob 3.5
Fred 2.7
Sally 4.2
Zelda 6.1
Here are the results

4. Test-Retest Reliability with Surveys
The same
students take the
Survey TWO
WEEKS LATER

5. Test-Retest Reliability with Surveys
Here are the results
Respondent Average Score
Bob 3.7
Fred 2.5
Sally 4.5
Zelda 5.8
The same
students take the
Survey TWO
WEEKS LATER

6. Test-Retest Reliability with Surveys
Respondent Average Score
Bob 3.7
Fred 2.5
Sally 4.5
Zelda 5.8
Respondent Average Score
Bob 3.5
Fred 2.7
Sally 4.2
Zelda 6.1
Survey administered Survey administered again 2 weeks later

7. Test-Retest Reliability with Surveys
Respondent Average Score
Bob 3.7
Fred 2.5
Sally 4.5
Zelda 5.8
Respondent Average Score
Bob 3.5
Fred 2.7
Sally 4.2
Zelda 6.1
Survey administered Survey administered again 2 weeks later
We, then, correlate the results. Higher
correlations (.8 to 1.0) signify high Test- Retest
Reliability. Anything lower than .8 signify low
Test- Retest Reliability.