PubMed Health⌕ Search

Biomedical subjects

N J Voudouris

Publications and source records attributed to N J Voudouris.

3 recordsLinked to original sources
PubMed2001

Test-retest reliability and internal consistency of a variety of measures of dietary restraint and body concerns in a sample of adolescent girls.

OBJECTIVE: Internal consistency and test-retest reliability were examined in a variety of measures relating to body concerns and dieting and eating behaviors. METHOD: Grade 9 females (n = 363) from nine schools completed questionnaires with the aid of a definitions glossary at Time 1, including the five subscales of the Eating Attitudes Test, the Dutch Eating Behavior Questionnaire-Restraint scale, a variety of measures of current size and ideal size (self, parents) based on the Body Figure Rating Questionnaire, the Appearance Evaluation and Appearance Orientation subscales of the Multidimensional Body Self-Rating Questionnaire, and the Weight Loss Behaviors Scale. Four to 5 weeks later, 164 girls completed the questionnaires again. RESULTS AND DISCUSSION: Findings indicated adequate internal consistency and high test-retest correlations for all measures. Some measures, particularly those related to body size and dietary restraint, showed a slight increase in group means over time.

Adolescent↗
PubMed1985

Conditioned placebo responses.

Following earlier animal research, we attempt to condition placebo effects in human subjects. Four groups of 8 voluntary subjects were told that the experimenters would test a powerful new analgesic cream over three sessions by assessing its ability to reduce experimentally induced pain. The analgesic cream was, in fact, a placebo. In the first session all subjects were tested with and without the cream to assess their placebo response. In the second session, to condition two groups (with differing stimulation levels) to experience pain relief in response to the placebo, we repeatedly paired a reduction in nocioceptive stimulation with placebo administration. (Subjects were unaware that stimulation levels were manipulated). To condition the other two groups (with different stimulation levels) to experience an exacerbation of the pain, we paired an increase in nocioceptive stimulation with placebo administration. In the third session, all subjects were again tested for placebo response. Results suggested that placebo responses are conditionable in the laboratory in both a positive and negative direction. The clinical implications of a learning theory of placebo behavior are discussed.

Administration, Topical↗