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@ARTICLE{Schumann:910731,
      author       = {Schumann, Frank and Steinborn, Michael B. and Flehmig,
                      Hagen C. and Kürten, Jens and Langner, Robert and
                      Huestegge, Lynn},
      title        = {{O}n doing multi-act arithmetic: {A} multitrait-multimethod
                      approach of performance dimensions in integrated
                      multitasking},
      journal      = {Frontiers in psychology},
      volume       = {13},
      issn         = {1664-1078},
      address      = {Lausanne},
      publisher    = {Frontiers Research Foundation},
      reportid     = {FZJ-2022-04101},
      pages        = {946626},
      year         = {2022},
      abstract     = {Here we present a systematic plan to the experimental study
                      of test-retest reliability in the multitasking domain,
                      adopting the multitrait-multimethod (MTMM) approach to
                      evaluate the psychometric properties of performance in
                      Düker-type speeded multiple-act mental arithmetic. These
                      form of tasks capacitate the experimental analysis of
                      integrated multi-step processing by combining multiple
                      mental operations in flexible ways in the service of the
                      overarching goal of completing the task. A particular focus
                      was on scoring methodology, particularly measures of
                      response speed variability. To this end, we present data of
                      two experiments with regard to (a) test-retest reliability,
                      (b) between-measures correlational structure, (c) and
                      stability (test-retest practice effects). Finally, we
                      compared participants with high versus low performance
                      variability to assess ability-related differences in
                      measurement precision (typically used as proxy to "simulate"
                      patient populations), which is especially relevant in the
                      applied fields of clinical neuropsychology. The participants
                      performed two classic integrated multi-act arithmetic tasks,
                      combining addition and verification (Exp. 1) and addition
                      and comparison (Exp. 2). The results revealed excellent
                      test-retest reliability for the standard and the variability
                      measures. The analysis of between-measures correlational
                      structure revealed the typical pattern of convergent and
                      discriminant relationships, and also, that absolute response
                      speed variability was highly correlated with average speed
                      (r > 0.85), indicating that these measures mainly deliver
                      redundant information. In contrast, speed-adjusted
                      (relativized) variability revealed discriminant validity
                      being correlated to a much lesser degree with average speed,
                      indicating that this measure delivers additional information
                      not already provided by the speed measure. Furthermore,
                      speed-adjusted variability was virtually unaffected by
                      test-retest practice, which makes this measure interesting
                      in situations with repeated testing.},
      cin          = {INM-7},
      ddc          = {150},
      cid          = {I:(DE-Juel1)INM-7-20090406},
      pnm          = {5251 - Multilevel Brain Organization and Variability
                      (POF4-525)},
      pid          = {G:(DE-HGF)POF4-5251},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36059769},
      UT           = {WOS:000849206400001},
      doi          = {10.3389/fpsyg.2022.946626},
      url          = {https://juser.fz-juelich.de/record/910731},
}