Zusammenfassung der Ressource
Reliability, validity, generalizability
and credibility.
- Shipman’s 4 key questions about the quality of research
- RELIABILITY
- If the investigation had been carried out again by different researchers using the same methods,
would the same results have been obtained?
- Subject error (different results on different days) Subject bias (try to please researcher) Observer
error and bias.
- VALIDITY
- Question 2. Does the evidence reflect the reality under investigation? Has the researcher found out
what he/she thinks or claims it’s about?
- Posible threats to internal validity.
- 1. History.
- 2. Testing
- 3. Instrumentation.
- 4. Regression.
- GENERALIZABILITY
- Selection (specifici to group) Setting (specific to setting) History (particular past experience)
Construct effects. (only this group has these constructs)
- CREDIBILITY.
- Question 4. Is there suficiente detail on the way the evidence was produced for the credibility of the
research to be assessed?