Strong items get suppressed, weak items do not: The role of item strength in output interference

An experiment is reported that examines the role of item strength in output interference. Subjects studied two types of categorized item lists: lists in which each category consisted of strong and moderate items, and lists in which each category consisted of weak and moderate items. Different degrees of item strength were accomplished by varying the items’ taxonomic frequency within a category. The subjects either recalled a category’s strong and weak items before its moderate items, or vice versa. The prior recall of the moderate items impaired the later recall of the strong items, but did not impair the later recall of the weak items. This effect of item strength indicates that output interference is caused by a process of retrieval suppression. It additionally suggests that, in order to minimize output-interference effects in recall, a list’s strong items should be recalled before its weak items.     

Zur ‘Regulativen Funktion’ Der Kantischen Antinomien

Ohne ZusammenfassungMein Dank gilt dem Philosoph. Department und dem Institute for the Arts and Humanistic Studies der Pennsylvania State University, die mir in Zusammenhang mit einem dort abgehaltenen Kant-Seminar Gelegenheit zur Ausarbeitung dieses Beitrages gaben.     

Acceptance and Commitment Therapy and Implementation Intentions Increase Exercise Enjoyment and Long-Term Exercise Behavior Among Low-Active Women

The current study evaluated the long-term effectiveness of acceptance and commitment therapy (ACT) for promoting exercise behavior in comparison with planning in the form of implementation intentions (forming situational cues and action plans as to when, where, and how to incorporate exercise). We expected both interventions to increase exercise behavior (assessed using the Godin Leisure-Time Exercise Questionnaire; Godin and Shephard 1985) from baseline to 6-months post-intervention, but expected only ACT to also increase exercise enjoyment (assessed using the Physical Activity Enjoyment Scale; Kendzierski and DeCarlo 1991). A total of 32 women, randomized to receive a single session of either ACT training or instructions to form implementation intentions for exercise activities, took part in this study. The participants were contacted by email 6-months following the intervention to determine the amount of self-reported exercise. As expected, exercise amount increased in both groups. Contrary to our expectations, both groups also increased in exercise enjoyment. This study provides initial evidence that exercising can be increased through an ACT intervention. ACT and implementation intentions may both be effective and brief interventions for promoting exercise behavior and exercise-related enjoyment in low-active women. Future research needs to establish the psychosocial and personality factors that lead to the effectiveness of ACT and implementation intentions.