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Biomedical subjects

D B Jeffrey

Publications and source records attributed to D B Jeffrey.

12 recordsLinked to original sources
PubMed1975

Behavior therapy versus "will power" in the management of obesity.

In a study of the management of obesity 43 patients were randomly assigned to behavior therapy, will power, and no-treatment control groups. The behavioral treatment involved contingency contracting, stimulus control, self-monitoring, energy expenditure, and group reinforcement procedures over an 18-week period. The will power patients were told to do the same thing as the behavior therapy patients; however, instead of having formal contingencies and meeting regularly, they were told to apply "will power" on their own, as this was the most important aspect of losing weight. The third group was a standard no-treatment control group. Analyses of covariance indicated that (a) the behavior therapy group lost significantly more weight than the will power (p less than .05) and no-treatment control (p less than .01) groups, and (b) the will power and no-treatment control groups did not differ significantly from each other. An 18-week maintenance follow-up of the behavior therapy group indicated that there was no significant weight gain from the end of treatment to follow-up. Also, an analysis of time spent per patient suggested that the behavioral treatment employed in this study was more efficient than previous treatments.

Adolescent↗
PubMedDate not supplied

A comparison of the Three-Factor Eating Questionnaire and the Restraint Scale and consideration of Lowe's Three-Factor Model.

This study compared the Restraint Scale (RS) and the Cognitive Restraint Scale of the Three Factor Eating Questionnaire (TFEQ-CR) in their ability to predict negative-affect eating (disinhibition of restraint) in the laboratory. It was hypothesized that the RS would be a better predictor of disinhibited eating in the laboratory. Subjects (104 college women) were classified as either high or low on both scales, resulting in four separate groups. Subjects were then randomly assigned to either negative or neutral mood manipulations resulting in a 2 x 2 x 2 (RS x TFEQ-CR x Mood) design. A taste-test paradigm was utilized in which grams of crackers consumed following the mood manipulation was the dependent measure. No significant differences in laboratory food consumption were found between groups. Evidence was provided, however, suggesting that there are important differences between the two scales. The current study did offer some support for Lowe's (1993) three-factor model of dieting behavior, which differentiates between individuals who are currently dieting and those who have a history of frequent dieting and overeating.

Affect↗
PubMedDate not supplied

Restraint, weight suppression, and self-report reliability: how much do you really weigh?

This study examined the effects of weight suppression on eating behaviors in a standard restraint ice cream taste-test paradigm. Participants were 58 female restrained eaters categorized by self-report as either high- or low-weight suppressors. Prior to the taste test, half of the participants received a milkshake preload. The amount of ice cream consumed during the taste test was the primary measure of interest. A 2 x 2 analysis of variance (ANOVA) indicated no significant differences between groups. This contradicts previously reported results in which restrained eaters consumed more following a preload than in the no-preload condition and provides further evidence that restraint is not a homogeneous construct. These results also question the use of self-report measures to determine an individual's level of weight suppression.

Adolescent↗
PubMedDate not supplied

The development of children's eating habits: the role of television commercials.

There is growing evidence that the long-term consumption of the typical high-sugar, high-calorie American diet may lead to a variety of health problems. Since the majority of food ads on television are for high-sugar, high-calorie types of foods, researchers have begun investigating the effects of these commercials. A number of self-report, survey, and correlational studies have found that children watch on the average 28 hours of TV a week, see over 11,000 low-nutrition "junk" food ads a year on TV, believe (at the younger ages) that commercials tell the truth, recall the ads, and often request in stores foods that are highly advertised. A series of behavioral/experimental studies conducted at the University of Montana are reported in some detail. The initial stage of the research focused upon the development of a methodology for assessing the impact of commercials upon the actual amounts of foods consumed. Next, a series of studies investigating the effects of low-nutrition, pro-nutrition, and nonfood commercials upon the eating behaviors of children was begun. The results, to date, suggest low-nutrition ads are most effective in increasing total caloric consumption. Additionally, low-nutrition ads seem to affect boys more than girls and are not mediated by cognitive development. Finally, pro-nutrition ads have so far proven ineffective in increasing consumption of pro-nutrition foods. Some of the implications of applying the growing body of empirical literature on children's television to social policy issues are also discussed.

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