Biomedical subjects

Martin Fishbein

Publications and source records attributed to Martin Fishbein.

12 recordsLinked to original sources

PubMed2007

Evaluating the risk and attractiveness of romantic partners when confronted with contradictory cues.

Research shows that people engage in "risky" sex with "safe" partners and in "safer" sex with "riskier" partners. How is the determination of "risky" or "safe" status made? Factorial survey methodology was used to randomly construct descriptions of romantic partners based on attractive and/or risky characteristics. Respondents evaluated 20 descriptions for attractiveness, health risk, likelihood of going on a date, likelihood of unprotected sex, and likelihood of STD/HIV infection. Respondents were most attracted to and perceived the least risk from attractive descriptions and were least attracted to and perceived the most risk from the risky descriptions. The differences between the "conflicting information" descriptions are attributable to a primacy effect: descriptions that began with attractiveness information but end with risk information were evaluated more positively than those that began with risk and ended with attractive information.

Adolescent↗

PubMed2006

Conducting Internet-based HIV/STD prevention survey research: considerations in design and evaluation.

The aim of this paper is to advance rigorous Internet-based HIV/STD Prevention quantitative research by providing guidance to fellow researchers, faculty supervising graduates, human subjects' committees, and review groups about some of the most common and challenging questions about Internet-based HIV prevention quantitative research. The authors represent several research groups who have gained experience conducting some of the first Internet-based HIV/STD prevention quantitative surveys in the US and elsewhere. Sixteen questions specific to Internet-based HIV prevention survey research are identified. To aid rigorous development and review of applications, these questions are organized around six common criteria used in federal review groups in the US: significance, innovation, approach (broken down further by research design, formative development, procedures, sampling considerations, and data collection); investigator, environment and human subjects' issues. Strategies promoting minority participant recruitment, minimizing attrition, validating participants, and compensating participants are discussed. Throughout, the implications on budget and realistic timetabling are identified.

HIV Infections↗

PubMed2006

Public opinion on sex education in US schools.

OBJECTIVE: To examine US public opinion on sex education in schools to determine how the public's preferences align with those of policymakers and research scientists. DESIGN: Cross-sectional survey. SETTING: July 2005 through January 2006. PARTICIPANTS: Randomly selected nationally representative sample of US adults aged 18 to 83 years (N = 1096). MAIN OUTCOME MEASURES: Support for 3 different types of sex education in schools: abstinence only, comprehensive sex education, and condom instruction. RESULTS: Approximately 82% of respondents indicated support for programs that teach students about both abstinence and other methods of preventing pregnancy and sexually transmitted diseases. Similarly, 68.5% supported teaching how to properly use condoms. Abstinence-only education programs, in contrast, received the lowest levels of support (36%) and the highest level of opposition (about 50%) across the 3 program options. Self-identified conservative, liberal, and moderate respondents all supported abstinence-plus programs, although the extent of support varied significantly. CONCLUSIONS: Our results indicate that US adults, regardless of political ideology, favor a more balanced approach to sex education compared with the abstinence-only programs funded by the federal government. In summary, abstinence-only programs, while a priority of the federal government, are supported by neither a majority of the public nor the scientific community.

Adolescent↗

PubMed2006

Targeting norm-related beliefs about marijuana use in an adolescent population.

The integrative model of behavior prediction and priming theory were used to evaluate the effects of anti-marijuana advertisements in an experimental context. In 1 original study and 2 replications, 435 adolescents were randomly assigned to condition, and those in the experimental condition viewed 3 ads that challenged undesirable normative beliefs about marijuana use. The results showed that ad exposure had small but positive (anti-drug) effects on adolescents' considerations of the outcomes of using marijuana and their perceptions of the social normative climate surrounding marijuana use. Priming effects also were observed but generally ran counter to predictions. Implications of the findings for anti-drug campaigns are discussed. Potential explanations for the unexpected priming effects also are offered.

Adolescent↗

PubMed2005

Elicitation of salient beliefs related to drug preparation practices among injection drug users in Puerto Rico.

Even when IDUs use their own syringes, the common use of drug preparation materials can expose them to blood-borne pathogens. Notwithstanding the accumulated evidence about the riskiness of drug preparation practices (DPPs), the factors that lead IDUs to engage in DPPs have remained understudied. We conducted 80 semi-structured interviews to elicit salient beliefs about engaging in low-risk DPPs. Data were content analyzed for consequences, normative influences, and barriers. For the most part respondents described positive consequences of engaging in low-risk DPPs. The majority of respondents mentioned IDU peers as a major source of pressure to engage in high-risk DPPs. Lack of access to clean materials and the need to carry materials on oneself were the most salient barriers elicited. The results suggest that preventive interventions need to address the preference for re-using filters, help develop skills to fend off pressures from peers, and increase the accessibility of materials in ways that do not require IDUs to carry additional items.

Adolescent↗

PubMed2005

Theory-based behavior change interventions: comments on Hobbis and Sutton.

Hobbis and Sutton (this issue) suggest that Cognitive Behavior Therapy (CBT) techniques can be used in interventions based on the Theory of Planned Behavior (TPB). Although this suggestion has merit, CBT is only one of many applicable methods for producing belief and behavior change. Moreover, CBT's primary purpose is to help people carry out intended behaviors, not to influence intentions, and that it is more useful in face-to-face than in community-level interventions. Contrary to Hobbis and Sutton's critique, TPB can accommodate core beliefs or fundamental assumptions, but the theory suggests that interventions targeted at such beliefs are less effective than interventions targeted at behavior specific beliefs.

Cognitive Behavioral Therapy↗

PubMed2004

Incidence of herpes simplex virus type 2 infection in 5 sexually transmitted disease (STD) clinics and the effect of HIV/STD risk-reduction counseling.

The seroincidence of herpes simplex virus type 2 (HSV-2) infection was determined among 1766 patients attending sexually transmitted disease (STD) clinics and enrolled in a randomized, controlled trial of human immunodeficiency virus (HIV)/STD risk-reduction counseling (RRC). Arm 1 received enhanced RRC (4 sessions); arm 2, brief RRC (2 sessions); and arm 3, the control arm, brief informational messages. The overall incidence rate was 11.7 cases/100 person-years (py). Independent predictors of incidence of HSV-2 infection included female sex; black race; residence in Newark, New Jersey; <50% condom use with an occasional partner; and, in females, incident trichomoniasis and bacterial vaginosis. Only 10.8% of new HSV-2 infections were diagnosed clinically. Incidence rates were 12.9 cases/100 py in the control arm, 11.8 cases/100 py in arm 2, and 10.3 cases/100 py in arm 1 (hazard ratio, 0.8 [95% confidence interval, 0.6-1.1], vs. controls). The possible benefit of RRC in preventing acquisition of HSV-2 infection offers encouragement that interventions more specifically tailored to genital herpes may be useful and should be an important focus of future studies.

Adolescent↗

PubMed2004

Condom effectiveness for reducing transmission of gonorrhea and chlamydia: the importance of assessing partner infection status.

This analysis examined the importance of differential exposure to infected partners in epidemiologic studies of latex condom effectiveness for prevention of sexually transmitted infections. Cross-sectional, enrollment visit data were analyzed from Project RESPECT, a trial of counseling interventions conducted at five publicly funded US sexually transmitted disease clinics between 1993 and 1997. The association between consistent condom use in the previous 3 months and prevalent gonorrhea and chlamydia (Gc/Ct) was compared between participants known to have infected partners and participants whose partner infection status was unknown. Among 429 participants with known Gc/Ct exposure, consistent condom use was associated with a significant reduction in prevalent gonorrhea and chlamydia (30% vs. 43%; adjusted prevalence odds ratio = 0.42, 95% confidence interval: 0.18, 0.99). Among 4,314 participants with unknown Gc/Ct exposure, consistent condom use was associated with a lower reduction in prevalent gonorrhea and chlamydia (24% vs. 25%; adjusted prevalence odds ratio = 0.82, 95% confidence interval: 0.66, 1.01). The number of unprotected sex acts was significantly associated with infection when exposure was known (p for trend < 0.01) but not when exposure was unknown (p for trend = 0.73). Restricting analyses to participants with known exposure to infected partners provides a feasible and efficient mechanism for reducing confounding from differential exposure to infected partners in condom effectiveness studies.

Adult↗

PubMed2004

Questions raised by a reasoned action approach: comment on Ogden (2003).

In her critique of social cognition or reasoned action models, J. Ogden (see record 2003-05896-016) claimed that such models are not falsifiable and thus cannot be tested, that the postulated relations among model components are true by definition, and that questionnaires used to test the models may create rather than assess cognitions and thus influence later behavior. The authors of this comment challenge all 3 arguments and contend that the findings Ogden regarded as requiring rejection of the models are, in fact, consistent with them, that there is good evidence for the validity of measures used to assess the models' major constructs, and that the effect of completing a questionnaire on cognitions and subsequent behavior is an empirical question.

Behavioral Medicine↗

PubMed2002

Avoiding the boomerang: testing the relative effectiveness of antidrug public service announcements before a national campaign.

OBJECTIVES: This study examined the relative perceived effectiveness of 30 antidrug public service announcements (PSAs) and assessed the extent to which judgments of effectiveness are related to judgments of realism, amount learned, and positive and negative emotional responses. METHODS: Data were obtained from 3608 students in grades 5 through 12 in 10 schools. The ethnically diverse sample was 50.8% male. Students in 5 experimental conditions viewed sets of 6 antidrug PSAs and filled out a brief evaluation questionnaire following each PSA. Those in the control condition viewed a non-drug-related television program. RESULTS: The relative perceived effectiveness of the 30 PSAs varied considerably. Sixteen were rated as significantly more effective, and 6 as significantly less effective, than the control program. Relative rated effectiveness was highly related to realism (r =.87), amount learned (r =.88), negative emotion (r =.87), and positive emotion (r = -.35). CONCLUSIONS: Evaluative research is necessary to prevent broadcast of PSAs that could have a negative impact. PSAs should point out the negative consequences of drug use behavior rather than telling adolescents to "just say no."

Adolescent↗

PubMed2002

Relationships of stigma and shame to gonorrhea and HIV screening.

OBJECTIVES: The purpose of this study was to assess the relationships between stigma and shame associated with seeking treatment for sexually transmitted diseases (STDs) and undergoing testing for gonorrhea and HIV. METHODS: Participants were 847 males and 1126 females (mean age: 24.9 years) in 7 cities. Two scales assessed STD-related stigma and STD-related shame. RESULTS: Rates of stigma and shame were higher among participants without a gonorrhea test in the past year and among those without an HIV test. Sex, age, health service use, previous suspicion of gonorrhea, and low levels of stigma were independently associated with gonorrhea testing. Age, enrollment site, use of health services, gonorrhea testing, and low levels of stigma were independently associated with HIV testing. CONCLUSIONS: Shame is part of the experience of seeking STD-related care, but stigma may be a more powerful barrier to obtaining such care.

AIDS Serodiagnosis↗

PubMedDate not supplied

The effectiveness of gateway communications in anti-marijuana campaigns.

Successful anti-marijuana messages can be hypothesized to have two types of effects, namely persuasion effects, that is, a change in people's beliefs about using marijuana, and priming effects, that is, a strengthened correlation between beliefs and associated variables such as attitude and intention. This study examined different sets of anti-drug advertisements for persuasion and priming effects. The ads targeted the belief that marijuana is a gateway to stronger drugs, a belief that is often endorsed by campaign planning officials and health educators. A sample of 418 middle and high school students was randomly assigned to a control video or one of three series of ads, two of which included the gateway message in either an explicit or implicit way. Results did not support the use of the gateway belief in anti-marijuana interventions. Whereas no clear persuasion or priming effects were found for any of the ad sequences, there is some possibility that an explicit gateway argument may actually boomerang. In comparison to the control condition, adolescents in the explicit gateway condition tended to agree less with the gateway message and displayed weaker correlations between anti-marijuana beliefs and their attitude toward marijuana use. The results suggest that the gateway message should not be used in anti-drug interventions.

Adolescent↗