Einfluß der Leistungsmotivation auf das Behalten von Erfolgs- und Mißerfolgswörtern

Ohne ZusammenfassungHerrn Prof. Dr. Heckhausen und Herrn Prof. Dr. Dr. Metzger danke ich für Hinweise bei der Abfassung des Manuskripts.     

Transformational leadership,psychological empowerment,and flow at work

ABSTRACT

Frequent experiences of flow – an enjoyable state of optimal challenge – at work are associated with many positive individual and organizational outcomes. In our research, we examine how leaders affect subordinates’ flow experiences through subordinates’ work-related self-concept. Specifically, on the basis of self-concept theory, we propose that transformational leaders affect followers’ work-related self-concept, which we construe as followers’ psychological empowerment, consisting of the four sub-facets of meaning, competence, self-determination and impact. We further propose that psychological empowerment is positively related to flow experiences at work. In sum, we thus hypothesize that the effect of transformational leadership on employees’ flow experiences is mediated by psychological empowerment. Additionally, we propose that this indirect effect is moderated such that it is stronger for employees holding a formal leadership position. We tested the model with two two-wave questionnaire studies with employees (Study 1: N = 307 at time 1; N = 60 at time 2; Study 2: N = 611 at time 1; N = 271 at time 2) from different organizations. Path models reveal support for the mediation hypotheses in both samples but not for the moderated mediation hypothesis.     

Refractory effects in picture naming as assessed in a semantic blocking paradigm.

In the cyclic semantic blocking paradigm participants repeatedly name sets of objects with semantically related names (homogeneous sets) or unrelated names (heterogeneous sets). The naming latencies are typically longer in related than in unrelated sets. In Experiment 1 we replicated this semantic blocking effect and demonstrated that the effect only arose after all objects of a set had been shown and named once. In Experiment 2, the objects of a set were presented simultaneously (instead of on successive trials). Evidence for semantic blocking was found in the naming latencies and in the gaze durations for the objects, which were longer in homogeneous than in heterogeneous sets. For the gaze-to-speech lag between the offset of gaze on an object and the onset of the articulation of its name, a repetition priming effect was obtained but no blocking effect. Experiment 3 showed that the blocking effect for speech onset latencies generalized to new, previously unnamed lexical items. We propose that the blocking effect is due to refractory behaviour in the semantic system.