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Multivariate analysis of fears in dental phobic patients according to a reduced FSS-II scale.

Journal article
Authors Magnus Hakeberg
Jan-Eric Gustafsson
Ulf Berggren
Sven G. Carlsson
Published in European journal of oral sciences
Volume 103
Issue 5
Pages 339-44
ISSN 0909-8836
Publication year 1995
Published at Department of Education
Institute of Odontology
Department of Psychology
Pages 339-44
Language en
Keywords Adult, Chi-Square Distribution, Dental Anxiety, diagnosis, psychology, Fear, Female, Humans, Male, Manifest Anxiety Scale, statistics & numerical data, Models, Psychological, Multivariate Analysis, Psychometrics, statistics & numerical data, Questionnaires, Regression Analysis
Subject categories Psychology


This study analyzed and assessed dimensions of a questionnaire developed to measure general fears and phobias. A previous factor analysis among 109 dental phobics had revealed a five-factor structure with 22 items and an explained total variance of 54%. The present study analyzed the same material using a multivariate statistical procedure (LISREL) to reveal structural latent variables. The LISREL analysis, based on the correlation matrix, yielded a chi-square of 216.6 with 195 degrees of freedom (P = 0.138) and showed a model with seven latent variables. One was a general fear factor correlated to all 22 items. The other six factors concerned "Illness & Death" (5 items), "Failures & Embarrassment" (5 items), "Social situations" (5 items), "Physical injuries" (4 items), "Animals & Natural phenomena" (4 items). One item (opposite sex) was included in both "Failures & Embarrassment" and "Social situations". The last factor, "Social interaction", combined all the items in "Failures & Embarrassment" and "Social situations" (9 items). In conclusion, this multivariate statistical analysis (LISREL) revealed and confirmed a factor structure similar to our previous study, but added two important dimensions not shown with a traditional factor analysis. This reduced FSS-II version measures general fears and phobias and may be used on a routine clinical basis as well as in dental phobia research.

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