What needs to be clarified
Review practice effects, measurement error and form comparability in the interpretation of two assessments.
Materials to prepare
- Both protocols and test versions
- Reliability, retest and alternate-form manual data
- Interval, instructions, breaks and testing conditions
What to compare
Recheck scores, scales and age conversions. Compare administration and forms. Establish whether reliable-change calculation and practice corrections are supported. If parameters exist, reproduce the calculation with explicit assumptions, distinguishing unusual statistical change from cause or practical importance.
Possible outcome of the analysis
A review may verify scores, provide conditional change estimates and uncertainty, and show practice effects and missing grounds for broader conclusions.
Limits of the conclusions
Higher scores establish no recovery, intervention efficacy or absence of difficulty. Review is no clinical examination, diagnosis, treatment or occupational-fitness certificate.