Department of Psychology, Faculty of Philosophy, University of Sarajevo, Sarajevo, Bosnia and Herzegovina.
PLoS One. 2018 Oct 11;13(10):e0205169. doi: 10.1371/journal.pone.0205169. eCollection 2018.
The study examined the psychometric characteristics of three automated working memory span tasks: operational, reading, and symmetry span task, administered in groups of participants. For each task, the metric characteristics of six scoring procedures were evaluated: partial, absolute, partial non-weighted, absolute non-weighted, partial weighted, and absolute weighted scoring. Metric characteristics of all measures were compared across two parallel analyses: with and without application of a typical 85% accuracy criterion on the processing component of the tasks. The study demonstrates that the group administration of span tasks does not compromise their psychometric characteristics. All the tasks had an adequate internal consistency with Cronbach's αs equal to or above .70; the exception being all types of the symmetry span task absolute scores with α values close to .60. Furthermore, all tasks have satisfactory convergent construct validity as well as criterion validity estimated in relation to measures of fluid intelligence. Omitting the 85% accuracy criterion on the processing component of the span tasks did not impair their psychometric properties. Thus, it is recommended that researchers discard this accuracy criterion as a criterion for filtering the results for further statistical analyses.
该研究考察了三种自动化工作记忆广度任务（操作广度任务、阅读广度任务和对称广度任务）的心理计量学特征，这些任务是在分组参与者中进行的。对于每个任务，评估了六种评分程序的度量特征：部分评分、绝对评分、部分非加权评分、绝对非加权评分、部分加权评分和绝对加权评分。在两个平行分析中比较了所有测量指标的度量特征：一个分析是在任务的处理成分上应用典型的 85%准确性标准，另一个分析是不应用该标准。研究表明，广度任务的分组管理不会影响其心理计量学特征。所有任务的内部一致性良好，克朗巴赫 α 值等于或高于.70；唯一的例外是所有类型的对称广度任务的绝对分数，其 α 值接近.60。此外，所有任务都具有令人满意的收敛结构有效性以及与流体智力测量相关的标准有效性。在广度任务的处理成分上省略 85%的准确性标准不会损害其心理计量学特性。因此，建议研究人员放弃这一准确性标准，作为过滤结果以进行进一步统计分析的标准。
