A mixed-methods study of physiological reactivity to domain-specific problem solving: methodological perspectives for process-accompanying research in VET

Abstract

Background:The study aims to investigate stress-inducing potentials of problemsolving activities (e.g., goal elaboration, decision making, and information seeking) within an authentic problem-solving task from the business administration domain. Furthermore, the study aims to investigate stress-reducing potentials of personal characteristics (e.g., self-efficacy beliefs, vocational experience). Methods:A mixed-methods design was chosen to investigate in-depth processes during domain-specific problem solving, using a computer-based office simulation. Personal characteristics were assessed by questionnaires and tests before the task. Cardiovascular and electrodermal reactivity were measured continuously during the task. Problem-solving activities were coded on the basis of screencasts and think-aloud recordings. Changes in physiological reactivity were estimated on the basis of problemsolving activities and personal characteristics via multilevel regression analyses. Results:The problem-solving task in general was associated with stress reactions. There were no significant main effects of self-efficacy beliefs, vocational experience, and general intelligence. However, changes in heart rate depended on an interaction between vocational experience and activities including goal elaboration and definition. Furthermore, problem-solving activities including decision making were significantly associated with an increase of amplitudes of detected skin conductance responses. A negative correlation found between the problem-solving score and the LF/HF ratio indicates that higher physiological arousal during the problem-solving task was accompanied by lower problem-solving performance.

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