Psychometric, diurnal, and electrophysiological correlates of activation.

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Abstract
Used the Activation-Deactivation Adjective Check List (AD-ACL) in 5 studies with a total of 251 male and 82 female undergraduates. Factor analysis of Ss' scores identified a single activation factor representing a continuum ranging from sleep through wakefulness. Next, changes over the diurnal cycle in activation factor scores were demonstrated. Test-retest reliability (1 wk) was also investigated. Finally, activation scores were related to pulse rate, respiration rate, and skin resistance level under passive and active conditions. Correlations between factor scores and electrophysiological measures were higher than were intercorrelations of electrophysiological measures, indicating that scores on this revised activation factor represent a valid measure of phenomenological bodily activation level. (21 ref) (PsycINFO Database Record (c) 2016 APA, all rights reserved)

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