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Den Psychotherapie-Bias in der
sequenziellen online
Informatinssuche überwinden
Mit Vorinformation und Social Tags
Psychotherapie Bias
Behandlungsempfehlung

Angermeyer, M. C., Breier, P., Dietrich, S., Kenzine, D., & Matschinger, H. (2005). Public
attitudes toward psychiatric treatment. Social psychiatry and psychiatric
epidemiology, 40(11), 855-864.
Bestätigungsfehler
Verteidigungsmotivation

Bedrohung
Unterstützung

Majoritäts-Dissens

Unterstützung
Bedrohung
Extended Information Scent Model
Cress, Held & Kimmerle (2013)
Hypothesen
H1
Der Bias determiniert online Infosuche und –
bewertung
H2
Herausfordernde Vorinformation reduziert Bias im
Vergleich zu unterstützender Vorinformation
H3
Die Salienz herausfordernder Tags reduziert Bias
im Vergleich zu bestärkenden Tags
2x3 Design
Tag-Salienz

Vorinformation

Unterstützend (PT)

Ausgeglichen

Bedrohend (MED)

Unterstützend (PT)

34

29

26

Bedrohend (MED)

32

27

26
Ablauf
Pretest
- Vorwissen
- Therapie Ratings

Blog Posts lesen
Vorinformation
- Herausfordernd
- Unterstützend

Infosuche
Tag Salienz
- Psychotherapie
- Ausgeglichen
- Medikamente

Posttest
- Therapie Ratings
- Therapie
Empfehlung
Vorinformation: Blog Posts
Psychotherapie vs. Medikation
Wissenschafternetzwerk
(Majoritäts-Dissens):
Weltumspannende Datenbank

Gehirnscan Therapie-Evaluationen:
Viele erfolgreiche Studien
Tag Salienz: Informationssuche
unterstützend

3 Blog
Posts

neutral

herausfordernd
H1: Der Bias determiniert online Infosuche
und –bewertung

Wirksamkeits-Rating

t(173) = 7.68
p < .001, d = .81

Tag Selektion

t(173) = 2.83,
p = .005, d = .28

Blog Post Selektion

t(173) = 6.47,
p < .001, d = .66
Tagselektion

HE Vorinformation
F(1,168) = .32,
p = .57, ηp² = .002

HE Tag Salienz
F(2,168) = 10.61,
p < .001, ηp² = .112

WW
ns.
Gelesene Blog Posts

HE Vorinformation
F(1,168) = 4.32,
p = .04, ηp² = .025

HE Tag Salienz
F(2,168) = 6.55,
p = .002, ηp² = .072

WW
ns.
Wirksamkeitsratings

HE Vorinformation
F(1,168) = 2.93,
p = .09, ηp² = .017

HE Tag Salienz
F(2,168) = 8.48,
p < .001, ηp² = .092

WW
ns.
Therapie Empfehlung
Zusammenfassung
• (fast) Alles bestätigt, bis auf TherapieEmpfehlung

• Effekt Vorinformation < Tag Salienz
• Majoritätsbias leitet Infosuche, nicht
Verteidigungsmotivation
Teil 2
DFG
DFG Überblick
DFG
Studie 1
IV: Individual prior knowledge
IV: Collective knowledge
Medication
Psychotherapy
Balanced

Medical
background
N = 22
N = 22
N = 22

Psychological
background
N = 22
N = 22
N = 22
- Ende Dankeschön!

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Empirical Experiment on Navigation with Social Tags