Abstract:
:We assessed the psychometric properties, including internal consistency, test-retest reliability, and number of trials needed for stability, for response time (RT) and conflict N2 amplitude measures of conflict adaptation (i.e., sequential trial or Gratton effects). Event-related potentials (ERPs) were obtained from 79 healthy individuals (44 female) during completion of a modified Eriksen flanker task. RTs and N2 amplitude showed reliable conflict adaptation (i.e., previous-trial congruency influenced current-trial measures). Conflict adaptation indices were stable as indicated by reliable internal consistency and 2-week test-retest stability. The number of trials needed for conservative, reliable RT and N2 amplitude measurements was 29 and 30, respectively. This investigation empirically establishes that these conflict adaptation indices represent robust, dependable measures.
journal_name
Psychophysiologyjournal_title
Psychophysiologyauthors
Clayson PE,Larson MJdoi
10.1111/psyp.12138subject
Has Abstractpub_date
2013-12-01 00:00:00pages
1209-19issue
12eissn
0048-5772issn
1540-5958journal_volume
50pub_type
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