cogstate
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cogstate [2023/02/20 16:50] flip [Versions] |
cogstate [2025/04/16 14:08] (current) jasper_zwerver |
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| ===== Versions ===== | ===== Versions ===== | ||
| - | The Cogstate brief battery 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, however more variables were measured during the test. For this reason the variables below are split between the Variables 2A & 3A and Variables redesigned 3A.\\ | + | The Cogstate brief battery 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, however more variables were measured during the test.\\ |
| - | In [[2A Visit 1]] around 91.000 participants had valid Cogstate results. In [[3A Visit 1]] around 14.000 participants had valid results on the original brief battery and 23.000 on the redesigned version. At this moment assessment 3A is still going on, meaning the redesigned version number will increase overtime. | + | 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 Cogstate variables and the redesigned Cogstate variables, please pay attention to how the variables are written in the columns named 'Code' in both variable tables. | + | * To reflect the difference between the Cogstate variables and the redesigned Cogstate variables, please pay attention to how the variables are written in the column named 'Code' in the variable table. |
| - | * Most variables listed in the below tables are test specific. For this reason a '_XX' will be added to the variable name in data releases. Due to a database variable continuity the '_XX' suffixes per test are different from the order in which the tasks were performed. The suffixes are as followed: | + | * Most variables listed in the below table are test specific. For this reason a '_XX' will be added to the variable name in data releases. Due to a database variable continuity the '_XX' suffixes per test are different from the order in which the tasks were performed. The suffixes are as followed: |
| - | | **Task in order of completion**| **Suffix** | | + | | **Task in order of completion** | **Suffix** | |
| - | | Detection task | _01 | | + | | Detection task | _02 | |
| - | | Identification task | _02 | | + | | Identification task | _01 | |
| - | | One back task | _04 | | + | | One back task | _04 | |
| - | | One Card Learning task | _03 | | + | | One Card Learning task | _03 | |
| + | \\ | ||
| + | === Completion criteria 2A === | ||
| + | the Cogstate variables are, just as all other data, presented 'as-is'. Meaning that all available data will be present. The Cogstate research group has a completion criteria for all participants. This criteria determines when according to their standards the test was valid. If a participant scored too low on one of the following variables the results of the test is considered invalid. | ||
| + | \\ | ||
| + | | **Task in order of completion** | **cogstate_stimuli_all_m_1** | **cogstate_hitrate_all_m_1** | | ||
| + | | Detection task | < 27 | < 80% | | ||
| + | | Identification task | < 23 | < 80% | | ||
| + | | One back task | < 24 | < 70% | | ||
| + | | One Card Learning task | < 60 | < 50% | | ||
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| | **Label English** | **Code** | **Variable** | **Assessment** | **Age** | | | **Label English** | **Code** | **Variable** | **Assessment** | **Age** | | ||
| - | | Session passed completion criteria? | cogstate_completion_all_m_2 | SessionCompletionPass | [[3A Visit 1]] | 13+ | | + | | Session passed completion criteria? | cogstate_completion_all_m_2 | SessionCompletionPass | [[3A Visit 1]] | 13+ | |
| - | | Test performance criteria / test XX | cogstate_completion_all_m_2_XX | TestCompletionPass | [[3A Visit 1]] | 13+ | | + | | Test completion criteria | cogstate_completion_all_m_1_XX | COMPLETION | [[3A Visit 1]] | 13+ | |
| - | | Session passed performance criteria? | cogstate_performance_all_m_2 | SessionPerformancePass | [[3A Visit 1]] | 13+ | | + | | Test performance criteria | cogstate_completion_all_m_2_XX | TestCompletionPass | [[3A Visit 1]] | 13+ | |
| - | | test performance criteria / test XX | cogstate_performance_all_m_2_XX | TestPerformancePass | [[3A Visit 1]] | 13+ | | + | | Session passed performance criteria? | cogstate_performance_all_m_2 | SessionPerformancePass | [[3A Visit 1]] | 13+ | |
| - | | Session passed integrity criteria? | cogstate_integrity_all_m_2 | SessionIntegrityPass | [[3A Visit 1]] | 13+ | | + | | Test performance criteria | cogstate_performance_all_m_2_XX | TestPerformancePass | [[3A Visit 1]] | 13+ | |
| - | | test integrity criteria / test XX <sup> 1 </sup> | cogstate_integrity_all_m_2_XX | TestIntegrityPass | [[3A Visit 1]] | 13+ | | + | | Test integrity criteria | cogstate_integrity_all_m_1_XX | INTEGRITY | [[3A Visit 1]] | 13+ | |
| - | | The total duration of the current session (ms) | cogstate_durationtotal_all_m_2 | SessionDuration | [[3A Visit 1]] | 13+ | | + | | Session passed integrity criteria? | cogstate_integrity_all_m_2 | SessionIntegrityPass | [[3A Visit 1]] | 13+ | |
| - | | The total time (ms) from test start until the end of the test / test XX | cogstate_duration_all_m_2_XX | TestDuration | [[3A Visit 1]] | 13+ | | + | | Test integrity criteria <sup> i </sup> | cogstate_integrity_all_m_2_XX | TestIntegrityPass | [[3A Visit 1]] | 13+ | |
| - | | The score on the primary outcome for this test <sup> 2 </sup> | cogstate_primaryoutcome_all_m_2_XX | PrimaryOutcome | [[3A Visit 1]] | 13+ | | + | | The total duration of the current session (ms) | cogstate_durationtotal_all_m_2 | SessionDuration | [[3A Visit 1]] | 13+ | |
| - | | the score on the alternate outcome for this test XX <sup> 3 </sup> | cogstate_outcomealt_all_m_2_XX | AlternateOutcome | [[3A Visit 1]] | 13+ | | + | | The total time (ms) from test start until the end of the test | cogstate_duration_all_m_2_XX | TestDuration | [[3A Visit 1]] | 13+ | |
| - | | Raw reaction time of performance (ms) / test XX | cogstate_speed_all_m_2_XX | RawReactionTime | [[3A Visit 1]] | 13+ | | + | | The score on the primary outcome for this test <sup> ii </sup> | cogstate_primaryoutcome_all_m_2_XX | PrimaryOutcome | [[3A Visit 1]] | 13+ | |
| - | | Reaction time of performance (log10 ms) / test XX | cogstate_speedtransf_all_m_2_XX | ReactionTime | [[3A Visit 1]] | 13+ | | + | | The score on the alternate outcome for this test <sup> iii </sup> | cogstate_outcomealt_all_m_2_XX | AlternateOutcome | [[3A Visit 1]] | 13+ | |
| - | | label | code | historic | [[3A Visit 1]] | 13+ | | + | | Speed measure - mean of reaction time for correct responses | cogstate_speed_all_m_1_XX | LMNUNTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | | label | code | historic | [[3A Visit 1]] | 13+ | | + | | Speed measure - standard deviation of the log10 transformed reaction time for correct responses | cogstate_logstdev_all_m_1_XX | LSD | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | | label | code | historic | [[3A Visit 1]] | 13+ | | + | | Raw reaction time of performance (ms) | cogstate_speed_all_m_2_XX | RawReactionTime | [[3A Visit 1]] | 13+ | |
| - | | label | code | historic | [[3A Visit 1]] | 13+ | | + | | Speed measure - mean of the log10 transformed reaction time for correct responses | cogstate_speedtransf_all_m_1_XX | LMNTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | | label | code | historic | [[3A Visit 1]] | 13+ | | + | | Reaction time of performance (log10 ms) | cogstate_speedtransf_all_m_2_XX | ReactionTime | [[3A Visit 1]] | 13+ | |
| - | | Total presentations or trials. | cogstate_presentations_all_m_1 | PRESNT | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | Raw consistency of performance (ms) | cogstate_consistency_m_2_XX | RawRTVariability | [[3A Visit 1]] | 13+ | |
| - | | Total correct responses | cogstate_correct_all_m_1 | COR | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | Consistency of performance (log10 ms) | cogstate_consistencytransf_m_2_XX | RTVariability | [[3A Visit 1]] | 13+ | |
| - | | Total error responses (includes FPos, FNeg, anticipations and max outs). | cogstate_errors_all_m_1 | ERR | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | Raw accuracy of performance | cogstate_accuracy_all_m_2_XX | RawAccuracy | [[3A Visit 1]] | 13+ | |
| - | | Speed measure - mean of the log10 transformed reaction time for correct responses | cogstate_speedtransf_all_m_1 | LMNTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | 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_XX | ACCTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | | Speed measure - mean of reaction time for correct responses | cogstate_speed_all_m_1 | LMNUNTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | 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 | ACCUNTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | | Speed measure - standard deviation of the log10 transformed reaction time for correct responses | cogstate_logstdev_all_m_1 | LSD | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | Accuracy of performance (arcsine square root proportion correct) | cogstate_accuracytransf_all_m_2_XX | Accuracy | [[3A Visit 1]] | 13+ | |
| - | | 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 | ACCTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | Total presentations or trials. | cogstate_presentations_all_m_1_XX | PRESNT | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | | 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 | ACCUNTRANS | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | Total correct responses | cogstate_correct_all_m_1_XX | COR | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | | CPAL and ISLT specific - "Stimuli". For CPAL is total filled markers, and for ISLT is total words in the presented list. | cogstate_stimuli_all_m_1 | STI | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | + | | Number of correct responses | cogstate_correct_all_m_2_XX | TotalCorrect | [[3A Visit 1]] | 13+ | |
| - | <sup> 1 </sup> Only calculated on test _02 (Identification task) \\ | + | | Number of correct responses after pant responses have been excluded | cogstate_correctexclpant_all_m_2_XX | TotalCorrectExclPant | [[3A Visit 1]] | 13+ | |
| - | <sup> 2 </sup> Primary outcome is reaction time (Detection/Identification task) or accuracy (One Back/One Card Learning task) \\ | + | | Total error responses (includes FPos, FNeg, anticipations and max outs). | cogstate_errors_all_m_1_XX | ERR | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | |
| - | <sup> 3 </sup> Only calculated on test _04 (One Back task) | + | | Number of errors | cogstate_errors_all_m_2_XX | TotalErrors | [[3A Visit 1]] | 13+ | |
| + | | Number of legal errors | cogstate_legalerrors_all_m_2_XX | LegalErrors | [[3A Visit 1]] | 13+ | | ||
| + | | Number of errors that break the rules of the test | cogstate_rulebreak_all_m_2_XX | RuleBreakErrors | [[3A Visit 1]] | 13+ | | ||
| + | | Number of anticipatory responses | cogstate_anticipatory_all_m_2_XX | TotalAnticipatory | [[3A Visit 1]] | 13+ | | ||
| + | | Number of post responses | cogstate_postresponses_all_m_2_XX | TotalPost | [[3A Visit 1]] | 13+ | | ||
| + | | Number of maxout responses <sup> iv </sup> | cogstate_maxout_all_m_2_XX | TotalMaxOut | [[3A Visit 1]] | 13+ | | ||
| + | | number of responses (correct + errors) | cogstate_responses_all_m_2_XX | TotalResponses | [[3A Visit 1]] | 13+ | | ||
| + | | CPAL and ISLT specific - "Stimuli". For CPAL is total filled markers, and for ISLT is total words in the presented list. | cogstate_stimuli_all_m_1_XX | STI | [[2A Visit 1]] \\ [[3A Visit 1]] | 13+ | | ||
| + | | Number of stimuli | cogstate_stimuli_all_m_2_XX | TotalTrials | [[3A Visit 1]] | 13+ | | ||
| + | | Standardized z-score for the primary outcome measure | cogstate_zscore_all_m_2_XX | StandardScoreZ | [[3A Visit 1]] | 13+ | | ||
| + | | Standardized t-score for the primary outcome measure | cogstate_tscore_all_m_2_XX | StandardScoreT | [[3A Visit 1]] | 13+ | | ||
| + | | standardized z-score for the alternate outcome measure <sup> iii </sup> | cogstate_zscorealt_all_m_2_XX | AltstandardScoreZ | [[3A Visit 1]] | 13+ | | ||
| + | | Standardized t-score for the alternate outcome measure <sup> iii </sup> | cogstate_tscorealt_all_m_2_XX | AltstandardScoreT | [[3A Visit 1]] | 13+ | | ||
| + | | The score on the psychomotor function/attention composite, incorporating the primary outcome measure for the detection and identification tests, relative to age-matched normative data | cogstate_psyattscore_all_m_2_XX | PsyAttStdScr | [[3A Visit 1]] | 13+ | | ||
| + | | The score on the learning/working memory composite, incorporating the primary outcome measures for the one card learning and one back tests (accuracy), relative to age-matched normative data | cogstate_learnwmscore_all_m_2_XX | LearnWMStdScr | [[3A Visit 1]] | 13+ | | ||
| + | | The score on the learning/working memory composite, incorporating the primary outcome measure for the ocl test (accuracy) and the alternate outcome measure for the onb test (reaction time), relative to age-matched normative data | cogstate_scorealt_all_m_2_XX | AltLearnWMStdScr | [[3A Visit 1]] | 13+ | | ||
| + | | Left- or righthanded | cogstate_handedness_all_q_1 | HAND | [[3A Visit 1]] | 13+ | | ||
| + | <sup> i </sup> Only calculated on test _02 (Identification task) \\ | ||
| + | <sup> ii </sup> Primary outcome is reaction time (Detection/Identification task) or accuracy (One Back/One Card Learning task) \\ | ||
| + | <sup> iii </sup> Only calculated on test _04 (One Back task) \\ | ||
| + | <sup> iv </sup> Calculated on tests _01,_02 and _04 (Detection, One back and One Card Learning task) | ||
| \\ | \\ | ||
cogstate.1676908234.txt.gz · Last modified: 2025/02/05 14:49 (external edit)
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