Cogstate Battery Results

data(cbb_results)

Format

A data frame with 13795 rows and 52 variables

Details

A dataset with variables as follows:

• RID -4 -4 Participant roster ID

• EXAMDATE -4 Examination Date

• TestTime -4 Time at the start of the test session.

• Session -4 Text/numbers (max characters 21) Label for the session/visit.

• SessionAttempt -4 Number The number of attempts of the current session to-date (including the current assessment).

• SessionDuration -4 Seconds (ADNI2) or milliseconds (ADNI3) The total duration of the current session.

• SessionCompletion -4 Number Session completion criteria (0 = all tests in session met completion criteria; 1 = at least one test in the session did not meet completion criteria).

• TaskCode -4 Text and numbers Full code for the individual test.

• TaskAttempt -4 Number The number of attempts of the test in the current session.

• TaskCompletionScore -4 Number The completion score for the test.

• TaskIntegrityScore -4 Number The performance score for the test.

• PrimaryOutcome -4 Number The score on the primary outcome measure for this test (e.g., ReactionTime for Detection, Identification and One Back; Accuracy for One Card Learning).

• ReactionTime -4 Number (log10 milliseconds) Reaction time; mean of the log10 transformed reaction times for correct responses.

• RTVariability -4 Number (log10 milliseconds) Consistency of performance; standard deviation of the log10 transformed reaction times for correct responses.

• Accuracy -4 Number (arcsine square root proportion correct) Accuracy of performance.

• TotalCorrect -4 Count (number up to 3 digits) Number of correct responses.

• TotalErrors -4 Count (number up to 3 digits) Number of errors.

• TotalResponses -4 Count (number up to 3 digits) Number of responses (TotalCorrect + TotalErrors).

• TotalTrials -4 Count Number of trials.

• SessionID -4 Numbers Identification number for the session.

• Visit -4 Text, numbers and symbols (max characters 30) Visit label.

• Timepoint -4 Text, numbers and symbols (max characters 30) Timepoint label for the visit. If the visit does not have any timepoints, this will be blank.

• SessionPerformancePass -4 Text Session performance criteria.(i) Yes = all tests in the session met the performance check. If a test is attempted multiple times within the session, TestPerformancePass must = Yes for the most recent attempt that passed completion.(ii) No = at least one test in the session did not meet performance check. If a test is attempted multiple times within the session, TestPerformancePass = No for the most recent attempt that passed completion.(iii) If TestCompletionPass = No for all attempts for a particular test, SessionPerformancePass = No.(iv) If one or more tests in the battery do not have any data for the real test (and therefore, the test does not appear in the extract), SessionPerformancePass = No.

• SessionIntegrityPass -4 Text Session integrity criteria.(i) Yes = all tests in the session met the integrity check. If a test is attempted multiple times within the session, TestIntegrityPass must = Yes for the most recent attempt that passed completion.(ii) No = at least one test in the session did not meet the integrity check. If a test is attempted multiple times within the session, TestIntegrityPass = No for the most recent attempt that passed completion.(iii) If TestCompletionPass = No for all attempts of a test that contributes to the integrity checks, SessionIntegrityPass = No.(iv) If one or more tests in the battery that contribute to the integrity checks do not have any data for the real test (and therefore, the test does not appear in the extract), SessionIntegrityPass = No.

• TestVersion -4 Text Indicates whether the adult or pediatric version of the test was administered.

• TestPhase -4 -4 Phase of the test. Only Real test data will be displayed in the extract.

• Round -4 Text and numbers Round of the test. For round-based tests, this will either be (i) a numerical value indicating round number of the test or (ii) Total<9d>, which represents overall performance across all rounds. For non- round-based tests, Total<9d> will be displayed.Note: Although the OCL has rounds, Total<9d> is displayed given only scores for the entire OCL test are computed.

• TestCompletionPass -4 Text Session completion criteria. (i) Yes = all tests in session met completion criteria. If a test is attempted multiple times within the session, TestCompletionPass must = Yes for at least one of the attempts.(ii) No = at least one test in the session did not meet completion criteria. If a test is attempted multiple times within the session, TestCompletionPass = No for all attempts.(iii) If one or more tests in the battery do not have any data for the real test (and therefore, the test does not appear in the extract), SessionCompletionPass = No.

• TestPerformancePass -4 Yes/No Test performance criteria (Yes = met performance check; No = did not meet performance check).

• TestIntegrityPass -4 Yes/No Test integrity criteria (Yes = met integrity check; No = did not meet integrity check).

• TestDuration -4 Milliseconds (number up to 7 digits) The total time (ms) from test start until the end of the test.

• AlternateOutcome -4 A number up to 5 decimal places, reported as xx.xxxxx The score on the alternate outcome for this test (i.e., Reaction Time for One Back)

• RawReactionTime -4 Milliseconds (a number up to 5 decimal places, reported as xx.xxxxx) Raw reaction time of performance.

• RawRTVariability -4 Milliseconds (a number up to 5 decimal places, reported as xx.xxxxx) Raw consistency of performance.

• RawAccuracy -4 A number up to 5 decimal places, reported as xx.xxxxx Raw accuracy of performance.

• TotalCorrectExclPant -4 Count (number up to 3 digits) Number of correct responses after Pant responses have been excluded.

• LegalErrors -4 Count (number up to 3 digits) Legal Errors; number of legal errors.

• RuleBreakErrors -4 Count (number up to 3 digits) Rule break errors; number of errors that break the rules of the test.

• TotalAnticipatory -4 Count Number of Anticipatory responses.

• TotalPost -4 Count Number of Post responses.

• TotalMaxOut -4 Count Number of MaxOut responses.

• StandardScoreZ -4 A number up to 5 decimal places, reported as xx.xxxxx Standardized z-score for the primary outcome measure.

• StandardScoreT -4 A number up to 5 decimal places, reported as xx.xxxxx Standardized T-score for the primary outcome measure.

• AltStandardScoreZ -4 A number up to 5 decimal places, reported as xx.xxxxx Standardized z-score for the alternate outcome measure.

• AltStandardScoreT -4 A number up to 5 decimal places, reported as xx.xxxxx Standardized T-score for the alternate outcome measure.

• ChangeScore -4 A number up to 5 decimal places, reported as xx.xxxxx Standardized change score for the primary outcome measure relative to the first (or designated baseline) assessment.

• Psyattstdscr -4 A number up to 5 decimal places, reported as xx.xxxxx The score on the Psychomotor Function/Attention composite, incorporating the Detection and Identification tests, relative to age-matched normative data.

• Psyattchange -4 A number up to 5 decimal places, reported as xx.xxxxx The standardized change score on the Psychomotor Function/Attention composite relative to the first (or designated baseline) assessment.

• LearnWMStdScr -4 A number up to 5 decimal places, reported as xx.xxxxx The score on the Learning/Working Memory composite, incorporating the primary outcome measures for the One Card Learning and One Back tests, relative to age-matched normative data.

• AltLearnWMStdScr -4 A number up to 5 decimal places, reported as xx.xxxxx The score on the Learning/Working Memory composite, incorporating the primary outcome measure for the One Card Learning test and the alternate outcome measure for the One Back test, relative to age-matched normative data.

• LearnWMChange -4 A number up to 5 decimal places, reported as xx.xxxxx The standardized change score on the Learning/Working Memory composite relative to the first (or designated baseline) assessment.

Examples

if (FALSE) {
describe(cbb_results)
}