Biomedical subjects

Terry Schell

Publications and source records attributed to Terry Schell.

4 recordsLinked to original sources

PubMed2006

A novel view of between-categories contrast and within-category assimilation.

This research manipulated the portion of a category distribution that is misclassified by the optimal classifier and investigated the impact on assessments of category attributes. Three separate studies manipulated the direction of overlap, the extent of overlap, and the relative base rate of the comparison category. All 3 studies produced large between-categories contrast and within-category assimilation. As expected, these effects were enhanced in conditions in which the optimal classifier misclassified a larger portion of the target category. Study 4 demonstrated that intercategory overlap in the absence of overt classification does not produce contrast and assimilation. Ironically, optimizing categorization accuracy can produce highly inaccurate beliefs about category attributes.

Affect↗

PubMed2004

Use of mental health services by men injured through community violence.

OBJECTIVE: The aim of this study was to assess the use of mental health services and predictors of use among men injured through community violence. METHODS: This one-year prospective study examined use of mental health services in a sample of 231 men who were injured through community violence and hospitalized at an urban trauma center. Predictors of mental health service use that were examined included age, ethnicity, income, neuroticism, injury severity, previous mental health service use, and need for services. Need for services was defined objectively by self-report of symptoms of posttraumatic stress disorder (PTSD) and subjectively by perception of an injury-related emotional problem. RESULTS: Univariate logistic regression analysis showed that older age, non-Latino ethnicity, previous use of services, and need for services predicted service use in the year after the injury. In a multivariate logistic regression analysis, objective and subjective need for services and older age predicted postinjury service use. In the subset of men who were symptomatic postinjury, only older age and objective need predicted use of mental health services. CONCLUSIONS: Despite high rates of need for services related to PTSD after violent injury in this sample, the rate of mental health service use was low. Psychoeducation about postinjury reactions and attention to structural barriers to services may help increase rates of care in this population.

Adolescent↗

PubMed2004

Computer-assisted self-assessment in persons with severe mental illness.

BACKGROUND: It has been difficult to improve care for severe mental illness (SMI) in usual care settings because clinical information is not reliably and efficiently managed. Methods are needed for efficiently collecting this information to evaluate and improve health care quality. Audio computer-assisted self-interviewing (ACASI) can facilitate this data collection and has improved outcomes for a number of disorders, suggesting the need to test its accuracy and reliability in people with SMI. METHOD: Ninety patients with DSM-IV schizophrenia or schizoaffective disorder (N = 45) or bipolar disorder (N = 45) recruited between Oct. 15, 2002, and July 1, 2003, were randomly assigned to 1 of 2 study groups and completed 2 standardized symptom surveys (Revised Behavior and Symptom Identification Scale and the symptom severity scale of the Schizophrenia Outcomes Module 2) 20 minutes apart in a crossover study design. Half of the patients first completed the scales via an in-person interview, and the other half first completed the scales via an ACASI survey self-administered through an Internet browser using a touchscreen developed to meet the cognitive needs of people with SMI. We evaluated attitudes toward ACASI, understanding of the ACASI survey, internal consistency, correlations between the ACASI and interview modes, concurrent validity, and a possible administration mode bias. RESULTS: All ACASI and in-person interview scales had similar internal reliability, high correlations (r = 0.78-1.00), and mean scores similar enough as not to be different at p < .05. A large majority rated the ACASI survey as easier, more enjoyable, more preferable if monthly completion of a survey were required, and more private, and 97% to 99% perfectly answered questions about how to use it. CONCLUSION: ACASI data collection is reliable among people with bipolar disorder and schizophrenia and could be a valuable tool to improve their care.

Adult↗

PubMed2003

Predictors of beer advertising awareness among eighth graders.

AIMS: To identify correlates of beer advertising awareness among adolescents at an age when most initiate use of alcohol. DESIGN: We conducted a cross-sectional analysis of an in-school survey about alcohol advertising. Structural equation modeling was used to test for independent predictors of a latent beer advertising awareness construct, separately among boys and girls. SETTING: Twenty middle schools in South Dakota, USA participated during their spring semester. PARTICIPANTS: A total of 1530 eighth graders. MEASUREMENTS: A latent advertisement awareness variable was derived based on recognition of six masked beer advertisements, knowledge of beer brands and knowledge of beer slogans. Tested predictors included measures of exposure to alcohol advertising in various venues, social norms regarding drinking, drinking beliefs and behavior and gender. FINDINGS: Adolescents with greater exposure to advertisements in magazines, at sporting and music events and on television were more advertisement aware than those with less exposure, as were teens who watch more TV, pay attention to beer advertisements and know adults who drink. Beer advertisement awareness was dramatically higher among boys, and was associated with drinking only among boys. CONCLUSIONS: Each of a variety of advertising venues appears to influence independently the extent to which beer advertising is incorporated into an adolescent's cognitive world. Boys are more likely to be aware of and remember beer marketing, and may be more likely to drink as a result of this awareness than girls.

Adolescent↗