Journal
JOURNAL OF BEHAVIOR THERAPY AND EXPERIMENTAL PSYCHIATRY
Volume 39, Issue 3, Pages 201-208Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jbtep.2007.04.001
Keywords
assessment; Internet; online
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The objective of this study is to compare the results of the Symptom Check List (SCL)-90-R and the General Health Questionnaire (GHQ)-28 administered on paper with the results of administration via Internet. Forty university students were asked to respond to the two questionnaires, first in one format (Internet or paper), and I week later in the other format. For the GHQ-28, no statistically significant differences were found between the two forms of presentation, Internet or paper, except in the social dysfunction subscale. In the case of the SCL-90-R, there were differences in the Positive Symptoms Distress Index (PSDI) and in the somatization and obsession-compulsion subscales. The effect of using the two formats in combination was also analyzed. Internal consistency of the instruments is high for both types of presentation (alpha = 0.91 in GHQ-28; alpha = 0.97 in SCL-90-R). Cori-elation between the two formats is also high, with values ranging between 0.76 and 0.92, p<0.001, except in the social dysfunction subscale. Finally, correlation between the GHQ-28 and SCL-90-R is also high, for both the paper and Internet results (r = 0.88, p<0.0 1 on paper and r = 0.83, p<0.0 1 via Internet). The differences found should be verified in future research with other types of sample. (C) 2007 Elsevier Ltd. All rights reserved.
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