Below is a summary of each cognitive task's suitability for repeat or high-frequency administration. Please note that these are general recommendations and your study’s aims should be considered when selecting measures.
| Task | Forms Available | Practice Effects | Recommendation for HFA Designs |
|---|---|---|---|
| Arrow Matching | 2 forms (auto-rotated) | Negligible | Recommended |
| Shape-Color Sorting | 1 form (2nd pending) | Negligible | Recommended |
| Number-Symbol Match | 1 form | Small | Recommended |
| Word Meaning | 2 forms (CAT*) | Negligible | Recommended |
| Spelling | 1 form (CAT*) | Negligible | Recommended |
| Sequences | 1 form | Small | Acceptable |
| Arranging Pictures | 1 form | Moderate to Large (performance improves over time) | Not recommended due to higher administration burden and no alternative forms |
| Faces and Names | 1 form | Large (performance improves over time, but strongest at shorter retest intervals) | Not recommended due to higher administration burden and no alternative forms |
Note. Definition of Practice Effects Using Standardized Mean Difference Ranges: Negligible = < .20; Small = [.20, .49]; Moderate = [.50, .79]; Large = ≥ .80; *CAT = Computer Adaptive Test