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Biomedical subjects

E S Geller

Publications and source records attributed to E S Geller.

At least 19 recordsLinked to original sources

Assigned versus participative goal setting and response generalization: managing injury control among professional pizza deliverers.

Safety belt use, turn signal use, and intersection stopping were observed at 3 pizza delivery locations per driver's license plate numbers. After baseline observations, employees at 1 store participated in goal setting targeting complete stops. Employees at the other store were assigned a goal. Over 4 weeks, the group's percentages of complete intersection stopping were posted. Both intervention groups significantly increased their complete intersection stops during the intervention phase. The participative goal-setting group also showed significant increases in turn signal and safety belt use (nontargeted behaviors) concurrent with their increases in intersection stopping (targeted behaviors). Drivers decreased their turn signal and safety belt use concurrent with the assigned goal condition targeting complete stops.

Accidents, Occupational

An experimental evaluation of a prototype public access nutrition information system for supermarkets.

Located the Nutrition for a Lifetime System (NLS-1), a prototype interactive information system, in a large supermarket to help users decrease high-fat food purchases and increase high-fiber food purchases. Study participants were randomly assigned to control (n = 23; used the NLS-1 to enter food purchases only) or experimental (n = 26; viewed videodisc instructional programs, received prompts, made commitments, received feedback from the NLS-1) conditions. According to data entered in the NLS-1 and actual food shopping receipts, experimental participants significantly reduced higher fat purchases. Increases in higher fiber purchases favored the experimental group but were not significant.

Adult

Beer versus mixed-drink consumption at fraternity parties: a time and place for low-alcohol alternatives.

Blood alcohol concentration (BAC) measurements were taken of university students entering and exiting three fraternity parties: during each party, the rates of drinking beer and mixed drinks were monitored. The parties choose beer or mixed drinks to consume exclusively throughout the evening at no cost. Unbeknownst to the subjects, the following conditions were manipulated across successive parties: (1) at the first party (64 males and 43 females) the beer alternative had standard alcohol content (i.e., 7% alcohol by volume), (2) at the second party (70 males and 48 females) the beer was a low-alcohol beer (3% alcohol) and (3) at the third party (53 males and 41 females) the partiers were randomly assigned to a regular alcohol content conditions of beer or mixed drinks or to a low-alcohol content condition (i.e., 3% beer or mixed drinks made with 7/8-oz of distilled spirits). Since those assigned to the low-alcohol conditions did not consume more beverages than those in the regular alcohol conditions, a titration hypothesis was not supported and the exit BACs were significantly lower for partiers in the low-alcohol conditions. When females drank at the same rate as males, their exit BACs were significantly higher than those of males. Implications for DWI prevention are discussed.

Accidents, Traffic

Knowing when to say when: a simple assessment of alcohol impairment.

The use of writing samples as indices of alcohol impairment was explored. Students at a campus fraternity party wrote a sentence and their signatures before and after consuming alcohol (in beer and mixed drinks). Later, undergraduate and graduate students attempted to discriminate between pre- and postparty handwriting samples. The average percentage of correct discriminations of entrance and exit writing samples was 83.7% for sentences and 67.5% for signatures, and the percentage of correct discriminations increased directly with the blood alcohol concentration of the partier who gave the writing sample. When a partier's blood alcohol concentration reached 0.15, all of the judges accurately discriminated 90% or more of the sentences, and 25 of the 28 judges correctly discriminated at least 80% of the signatures. All of the judges correctly discriminated at least 90% of the 18 sentences written by partiers with a blood alcohol concentration of 0.12 or more. Implications of these findings for reducing the risk of driving while intoxicated are discussed, as well as directions for follow-up research.

Accidents, Traffic

Altering shoppers' supermarket purchases to fit nutritional guidelines: an interactive information system.

This study reports the results of one effort to help supermarket shoppers alter food purchases to make purchases (and meals) that are lower in fat and higher in fiber. A prototype interactive information system using instructional video programs, feedback on purchases with specific goals for change, weekly programs, and the ability to track user interactions and intended purchases was evaluated. The major dependent measure was users' actual food purchases as derived from participants' highly detailed supermarket receipts. After a 5- to 7-week baseline phase, participants were randomly assigned to an experimental or control condition for the 7- to 8-week intervention phase. A follow-up phase began 5 to 8 weeks after participants completed the intervention and discontinued use of the system. The results indicated that experimental participants, when compared to control participants, decreased high fat purchases and increased high fiber purchases during intervention, with evidence for some maintenance of effect in follow-up. Plans for increasing the use and impact of the system are discussed.

Dietary Fats

Participative education for children: an effective approach to increase safety belt use.

Vehicle license plate numbers and the shoulder belt use of front-seat occupants were recorded unobtrusively when parents delivered and picked up their children at a Montessori school during 5-day baseline, intervention, and follow-up phases. Practicing and presenting a 15-min safety belt skit increased the safety belt use of those 6 kindergarten children who were not consistent belt users 82% above their preintervention baseline belt use mean of 47%. The belt use of these children's parents (who watched the skit) increased to 56% above their baseline mean of 36%. Also, mean safety belt use of 11 primary school children who watched the skit increased to 70% above their baseline of 28%. Mean safety belt use of the older children's parents (who didn't watch the skit) remained at approximately 31% for each phase, regardless of whether children were vehicle occupants. The follow-up observations, taken 3 months after the intervention, revealed 60% belt use for the kindergartners, 48% for the primary school children, and 71% for the kindergartners' parents when the children were vehicle occupants but only 30% when the parents were driving alone.

Child

Motivating safety belt use at a community hospital: an effective integration of incentive and commitment strategies.

An effective hospital-based safety-belt program incorporated several advantages over prior attempts to increase safety belt use, including (a) the use of indigenous staff as program sponsors, coordinators, and delivery agents; (b) a yearlong program evaluation; and (c) a combination of extrinsic incentives and intrinsic commitment. To be eligible for a weekly $5, employees met the following contingencies: (a) signed a pledge card; (b) displayed the signed pledge card in their vehicle; and (c) wore a safety belt. Overall, belt use increased from a 2-week baseline mean of 15.6% to 34.7% during the 6-month intervention, and decreased to 25.6% at withdrawal. For the pledge card signers (n = 188) and the nonsigners (n = 533), belt use increased from baseline means of 29.4% and 11.8% to intervention use rates of 75.1 and 17.7%, respectively. Withdrawal and 4-month follow-up use rates were 56.0% and 44.9% for the Pledge group, and 17.2% and 22.1% for the Nonpledge group.

Adult

An experimental test of risk compensation: between-subject versus within-subject analyses.

This study examined parameters under which risk compensation in driving can occur following the use of safety belts. Risk compensation theories hypothesize that if individuals use safety belts, they will drive in a more risky manner than if they do not use safety belts due to an increased perception of safety. Although the existence of risk compensation in driving has been debated in the literature for many years, the current study was the first experimental analysis of this theory that permitted a controlled examination of both between-subject and within-subject effects. This study required subjects to drive a 5-hp. go-kart around an oval track either buckled or unbuckled in the first of two phases of 15 driving trials. After the first phase the safety condition was switched for half the subjects (i.e., the safety belt was removed from subjects using it or was used by subjects who previously did not use it). Dependent measures included latency for each lap, deviations from the prescribed lane, and perceived safety while driving. The amount of time it took for subjects to travel to the go-kart track and their safety belt use during that trip was also measured. Risk compensation theory was not supported in the between-subject analyses of the research data; however, some within-subject comparisons did demonstrate risk compensation. Subjects who switched from not using the safety belt to using it increased driving speed during the second phase significantly more than subjects who used the safety belt during both driving phases. The study suggested that the occurrence of risk compensation is dependent upon individuals being able to compare the sensations using a safety belt with those of not using a safety belt. Risk compensation did not manifest itself in between-subject studies because this comparison could not take place. The implications of this study to driving automobiles on multi-user roadways is discussed. Suggestions for research to further expand the knowledge about how and when risk compensation occurs are also provided.

Acceleration

Training bar personnel to prevent drunken driving: a field evaluation.

The potential of a server intervention program to decrease the likelihood that a bar patron will leave a bar intoxicated was evaluated. Research assistants posing as regular patrons ("pseudopatrons") visited two bars where about half of the servers had received server intervention training. Pseudopatrons set the occasion for server intervention to occur by drinking six alcoholic beverages in two hours. The blood-alcohol concentration (BAC) of the pseudopatrons was measured after they left the bar. Results revealed that trained servers initiated more server interventions than did untrained personnel. Moreover, pseudopatrons served by trained personnel reached substantially lower BACs than those served by untrained servers. These results suggest that, if implemented on a large scale, server intervention programs have the potential of reducing drunken driving by helping to decrease the exit BACs of bar patrons.

Accidents, Traffic

An evaluation of three corporate strategies for safety belt use promotion.

Different types of awareness sessions to promote employee safety belt use were evaluated. Across eight different employee safety meetings three dichotomous variables were manipulated: the type of presentation format (lecture vs discussion), the presence or absence of safety belt pledge cards, and the presence or absence of an incentive component. All groups showed a four-fold increase in safety belt use. Five months after the interventions, belt use was still significantly higher than baseline levels. Generalization across employees was demonstrated by a significant increase in safety belt use for those who did not attend the awareness session. The awareness session with a discussion format influenced greater increases in safety belt use than did the lecture-based sessions, but pledge cards and incentives did not increase the impact of these awareness sessions.

Accidents, Traffic

Estimating alcohol impairment in the field: implications for drunken driving.

As they left a fraternity party, 93 college-age students were asked to estimate their blood alcohol level (BAL) and to report whether they were legally impaired. They were also asked to report the number of 10-oz cups of beer they had consumed during the party. Actual BALs were tested on a Breathalyzer and the subjects' self-reported number of cups were compared with the cup-by-cup consumption data collected during the party. The results indicated that many subjects were able to report correctly whether they were legally impaired. However, those subjects with higher BALs tended to overestimate their actual BAL while underestimating the number of cups of beer they had consumed. These results are discussed in terms of the ability of individuals to make judgments about their level of impairment. The implications of these results for the prevention of drunken driving are also addressed.

Accidents, Traffic

Naturalistic observations of beer drinking among college students.

We observed the beer drinking behavior of 308 university students in several bar and party settings. The following relationships were found: males drinking beer in bars consumed 0.92 oz per min; females drank less beer than males, and stayed in a bar for a longer time period; patrons drank significantly more beer when drinking in groups and when purchasing beer in pitchers versus cups or bottles; and intervals between party arrival and first drink and between party departure and last drink varied inversely with blood alcohol concentration. We discuss these findings with regard to developing interventions to prevent alcohol-impaired driving.

Adolescent