cogstate
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| cogstate [2023/02/07 09:24] – Cogstate overal met 1 hoofdletter flip | cogstate [2025/04/16 12:08] (current) – jasper_zwerver | ||
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| ===== Versions ===== | ===== Versions ===== | ||
| - | The Cogstate was measured during [[2A Visit 1]] and [[3A Visit 1]]. During the third assessment ([[3A]]) the test was redesigned by the Cogstate research group. The test and protocol stayed the same for the participants, | + | The Cogstate |
| + | In [[2A Visit 1]] around 92.000 participants had valid Cogstate results. In [[3A Visit 1]] around 15.000 participants had valid results on the original brief battery and 24.000 on the redesigned version. At this moment assessment 3A is still going on, meaning the redesigned version number will increase overtime. | ||
| === Variable suffixes === | === Variable suffixes === | ||
| - | * To reflect the difference between the variables | + | * To reflect the difference between the Cogstate |
| - | * Most variables listed in the below tables | + | * Most variables listed in the below table are test specific. For this reason a ' |
| - | | **Task** | + | | **Task |
| - | | Detection task | _01 | + | | Detection task |
| - | | Identification task | _02 | + | | Identification task | |
| - | | One back task | _04 | | + | | One back task | _04 |
| - | | One Card Learning task | _03 | | + | | One Card Learning task |
| + | \\ | ||
| + | === Completion criteria 2A === | ||
| + | the Cogstate variables are, just as all other data, presented ' | ||
| + | \\ | ||
| + | | **Task in order of completion** | ||
| + | | Detection task | ||
| + | | Identification task | < 23 | ||
| + | | One back task | < 24 | ||
| + | | One Card Learning task | ||
| \\ | \\ | ||
| - | ===== Variables | + | ===== Variables ===== |
| | **Label English** | | **Label English** | ||
| - | | Test Code | | + | | Session passed completion criteria? |
| - | | Total presentations or trials. | + | | Test completion criteria |
| - | | Total correct responses | + | | Test performance criteria |
| - | | Total error responses (includes FPos, FNeg, anticipations and max outs). | + | | Session passed performance criteria? |
| - | | Speed measure - mean of the log10 transformed reaction | + | | Test performance criteria |
| - | | Speed measure - mean of reaction time for correct responses | + | | Test integrity criteria |
| - | | Speed measure - standard deviation of the log10 transformed reaction time for correct responses | + | | Session passed integrity criteria? |
| - | | Accuracy measure - arcsine square root transformed - hitrate (correct responses divided by total responses (total includes TPos, TNeg, FPos, FNeg, anticipations and max outs) | cogstate_hitratetransf_all_m_1 | + | | Test integrity criteria <sup> i </ |
| - | | Accuracy measure - hit rate (correct responses divided by total responses (total includes TPos, TNeg, FPos, FNeg, anticipations and max outs) | + | | The total duration |
| - | | CPAL and ISLT specific - " | + | | The total time (ms) from test start until the end of the test | cogstate_duration_all_m_2_XX |
| + | | The score on the primary outcome | ||
| + | | The score on the alternate outcome for this test <sup> iii </ | ||
| + | | Speed measure - mean of reaction time for correct responses | ||
| + | | Speed measure - standard deviation of the log10 transformed reaction time for correct responses | ||
| + | | Raw reaction time of performance (ms) | cogstate_speed_all_m_2_XX | ||
| + | | Speed measure - mean of the log10 transformed reaction time for correct responses | ||
| + | | Reaction time of performance (log10 ms) | cogstate_speedtransf_all_m_2_XX | ||
| + | | Raw consistency of performance (ms) | cogstate_consistency_m_2_XX | ||
| + | | Consistency of performance (log10 ms) | cogstate_consistencytransf_m_2_XX | ||
| + | | Raw accuracy of performance | ||
| + | | Accuracy measure - arcsine square root transformed - hitrate (correct responses divided by total responses (total includes TPos, TNeg, FPos, FNeg, anticipations and max outs) | ||
| + | | Accuracy measure - hit rate (correct responses divided by total responses (total includes TPos, TNeg, FPos, FNeg, anticipations and max outs) | cogstate_hitrate_all_m_1_XX | ||
| + | | Accuracy of performance (arcsine square root proportion correct) | ||
| + | | Total presentations or trials. | ||
| + | | Total correct responses | ||
| + | | Number of correct responses | ||
| + | | Number of correct responses after pant responses have been excluded | ||
| + | | Total error responses (includes FPos, FNeg, anticipations and max outs). | ||
| + | | Number of errors | ||
| + | | Number of legal errors | ||
| + | | Number of errors that break the rules of the test | cogstate_rulebreak_all_m_2_XX | ||
| + | | Number of anticipatory responses | ||
| + | | Number of post responses | ||
| + | | Number of maxout responses <sup> iv </ | ||
| + | | number of responses (correct + errors) | ||
| + | | CPAL and ISLT specific - " | ||
| + | | Number of stimuli | ||
| + | | Standardized z-score for the primary outcome measure | ||
| + | | Standardized t-score for the primary outcome measure | ||
| + | | standardized z-score for the alternate outcome measure <sup> iii </ | ||
| + | | Standardized t-score for the alternate outcome measure <sup> iii </ | ||
| + | | The score on the psychomotor function/ | ||
| + | | The score on the learning/ | ||
| + | | The score on the learning/ | ||
| + | | Left- or righthanded | ||
| + | <sup> i </ | ||
| + | <sup> ii </ | ||
| + | <sup> iii </ | ||
| + | <sup> iv </ | ||
| + | \\ | ||
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