Online validation of combined mood induction procedures
David Marcusson-Clavertz1,2, Oscar N E Kjell1, Stefan D Persson1
1Department of Psychology, Lund University, Lund, Sweden.
Plos One
|June 5, 2019
Summary
This study shows that combining video clips and music can effectively induce happiness and sadness online. Velten statements did not significantly enhance mood induction compared to simple eye-closure instructions.
Area of Science:
- Psychology
- Cognitive Science
Background:
- Film clips, music, and Velten statements are known mood-induction techniques.
- Research on combined procedures, especially online, and the unique contribution of Velten statements is limited.
Purpose of the Study:
- To evaluate the effectiveness of combined mood induction procedures using video clips and music.
- To determine if Velten statements enhance mood induction beyond simple instructions.
- To assess the efficacy of these methods in internet-based research.
Main Methods:
- Study 1: Evaluated 80 Velten statements for effectiveness.
- Study 2: Employed 8-minute combined mood induction procedures (video clips followed by music with Velten statements or closed-eyes instructions).
- Participants (N=445) completed mood (joviality, sadness) and social desirability questionnaires before and after the procedure.
Main Results:
- Positive mood inductions significantly increased joviality (Hedges G = 1.35).
- Negative mood inductions significantly increased sadness (Hedges G = 1.28).
- No significant difference was found between Velten statements and closed-eyes instructions for mood induction.
Conclusions:
- Combined mood induction procedures are effective for inducing happiness and sadness in online research settings.
- Velten statements do not appear to offer additional benefits over simple relaxation instructions in this context.
- The findings support the use of these combined procedures for future online mood research.
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