Peggy Gallaher

The AHIMSA Acculturation Scale: A New Measure of Acculturation for Adolescents in a Multicultural Society.

Acculturation has been associated with adolescent health-risk behaviors. Most acculturation scales are inappropriate for adolescent surveys because they are too long, are not applicable to differing ethnic groups, or are language-based only. A brief, multidimensional, multicultural acculturation measure for adolescents was developed. Sixthgrade students (N = 317) in Los Angeles completed that scale and other measures of acculturation. The Acculturation, Habits, and Interests Multicultural Scale for Adolescents (AHIMSA) generates four subscores: United States Orientation (Assimilation), Other Country Orientation (Separation), Both Countries Orientation (Integration), and Neither Country Orientation (Marginalization). Three of the subscales were correlated with the subscales of a modified Acculturation Rating Scale for Mexican-Americans-II, with English language usage, and with generation in the United States providing evidence for the validity of the scale. Research on culturally diverse adolescent samples might benefit from the inclusion of the AHIMSA.

Using Social Networks to Understand and Prevent Substance Use: A Transdisciplinary Perspective

We review findings from research on smoking, alcohol, and other drug use, which show that the network approach is instructive for understanding social influences on substance use. A hypothetical network is used throughout to illustrate different network findings and provide a short glossary of terms. We then describe how network analysis can be used to design more effective prevention programs and to monitor and evaluate these programs. The article closes with a discussion of the inherent transdisciplinarity of social network analysis.

No News is Bad News: Characteristics of Adolescents Who Provide Neither Parental Consent Nor Refusal for Participation in School-Based Survey Research

Schools offer a convenient setting for research on adolescents.However, obtainingactive written parental consent is difficult. In a 6th-grade smoking study, students were recruited with two consent procedures: active consent (parents must provide written consent for their children to participate) and implied consent (children may participate unless their parents provide written refusal). Of 4,427 invited students, 3,358 (76%) provided active parental consent, 420 (9%) provided active parental refusal, and 649 (15%) provided implied consent (parental nonresponse). The implied consent procedure recruited more boys, African Americans, students with poor grades, and smokers. This dual-consentprocedure is useful for collecting some limited data from students who do not provide active consent or refusal.Schools offer a convenient setting for research on adolescents. However, obtaining active written parental consent is difficult. In a 6th-grade smoking study, students were recruited with two consent procedures: active consent (parents must provide written consent for their children to participate) and implied consent (children may participate unless their parents provide written refusal). Of 4,427 invited students, 3,358 (76%) provided active parental consent, 420 (9%) provided active parental refusal, and 649 (15%) provided implied consent (parental nonresponse). The implied consent procedure recruited more boys, African Americans, students with poor grades, and smokers. This dual-consent procedure is useful for collecting some limited data from students who do not provide active consent or refusal.

Influences affecting adolescent smoking behavior in China.

This study examined multiple influences on the use of tobacco by adolescents in China. Using the theory of triadic influences as a guide, we selected interpersonal, attitudinal/cultural, and intrapersonal constructs from baseline data to predict adolescent smoking 1 year later. We used prospective data from middle and high school students (N = 11,583) and their parents from the China Seven Cities Study, a longitudinal study that is evaluating the effects of changing economic and social factors on health behaviors including tobacco use. A multilevel regression analysis provided some support that each of the influences in the theory of triadic influences affects adolescent smoking in China. After adjusting for important confounders including age, gender, socioeconomic status, and smoking behaviors (lifetime and past 30-day) at baseline, we found significant risk factors within each of the three categories, including interpersonal influences (parental monitoring, good friend smoking, and peer smoking), attitudinal/cultural influences (school academic ranking, initial liking of smoking, and the meaning of smoking), and intrapersonal influences (susceptibility to smoking, and low self-confidence to quit smoking). Results suggest that the etiology of smoking among adolescents in China might be similar to that observed in western countries and that some of the techniques used successfully in prevention programs in those countries might be useful guides when developing prevention programs in China.

Sensations from Initial Exposure to Nicotine Predicting Adolescent Smoking in China: A Potential Measure of Vulnerability to Nicotine

Sensations derived from initial exposure to nicotine are a potential indicator of an individuals vulnerability to nicotine. This study assessed whether sensations experienced during the first lifetime exposure to nicotine could predict current and established cigarette smoking. Data from 210 respondents who reported having ever tried cigarette smoking in Wuhan, China, were obtained for this study from 610 students in 10th grade at two schools. Subjects were participants in a multipurpose pilot survey for an adolescent smoking prevention trial. The survey was administered in a classroom setting using a paper-and-pencil questionnaire. Sensations reported were cigarette smell (59.2%), coughing (54.1%), dizziness (52.1%), nausea (42.5%), relaxation (19.1%), and pleasurable buzz/rush (9.0%). After controlling for confounders, multiple logistic regression analyses identified three sensations significantly associated with smoking: (a) Cigarette smell (OR for days smoked in the past 30 days=2.93, p<.05, OR for number of cigarettes smoked per day=2.69, p<.05, and OR for 100-cigarette smoking=5.40, p<.01), (b) pleasurable buzz/rush (OR for 100-cigarette smoking=11.09, p<.05), and (c) relaxation (OR for past 30-day smoking measures ranged from 3.69 to 4.48, p<.01, and OR for 100-cigarette smoking=4.12, p<.05). A dose-response relationship was observed between the sensations and cigarette smoking. Self-reported sensations from initial exposure to nicotine may be a useful indicator of an individuals vulnerability to nicotine. This information can be used for adolescent smoking prevention and cessation interventions.

SAS and SPSS macros to calculate standardized Cronbach's alpha using the upper bound of the phi coefficient for dichotomous items.

Cronbach’s α is widely used in social science research to estimate the internal consistency of reliability of a measurement scale. However, when items are not strictly parallel, the Cronbach’s α coefficient provides a lower-bound estimate of true reliability, and this estimate may be further biased downward when items are dichotomous. The estimation of standardized Cronbach’s α for a scale with dichotomous items can be improved by using the upper bound of coefficient ϕ. SAS and SPSS macros have been developed in this article to obtain standardized Cronbach’s α via this method. The simulation analysis showed that Cronbach’s α from upper-bound ϕ might be appropriate for estimating the real reliability when standardized Cronbach’s α is problematic.

Stressful Life Events, Smoking Behavior, and Intentions to Smoke among a Multiethnic Sample of Sixth Graders

Objectives. Adolescent smoking has been associated with stressful life events. However, few studies have examined the associations between stress, smoking intentions, and smoking behavior among a multiethnic sample of adolescents. Methods. We compiled a checklist of stressful life events relevant to multiethnic youth and administered it to 1,074 sixth-grade students in urban Los Angeles. Results. The most frequently reported stressful events were similar across ethnic groups and generations in the USA: test taking, chores, and arguments with friends. The events reported as the most severe were disturbances in family life, such as: death, arguments between parents, and illness or injury. Whites and Latinos had reported higher levels of ever smoking and intentions to smoke than Asian/Pacific Islanders (PIs). On the positive family-related events scale Latinos scored higher than did whites or Asian/PIs. Whites scored higher than Latinos or Asian/PIs on both negative peer-related and negative personal-related events. Associations were observed between total stress, stressful life events, and smoking behavior and intention to smoke. Total stress was associated with ever smokers, smoking intentions within the next year and in high school over the entire sample. Negative peer-related events were associated with intention to smoke within the next year, among Latinos. Among Asian/PIs negative peer-related events were associated with intention to smoke within the next year and in high school. Negative school-related events were significantly associated with ever smoking and intentions to smoke in the next year and marginally associated with intentions to smoke in high school among children born in the USA whose parents were also born in the USA. Negative peer-related events and positive personal-related events were significantly associated with intentions to smoke in the next year among children born in the USA whose parents were immigrants. Conclusions. Results suggest that negative peer- and school-related events may lead to increased risk of smoking behavior and intentions to smoke among multicultural adolescents.

Overweight, body image, and depression in Asian and Hispanic adolescents.

OBJECTIVES To prospectively investigate associations between overweight and depressive symptoms in Asian and Hispanic adolescents. METHODS Data included 780 Hispanic and 375 Asian students. Structural equation model was used to prospectively explore moderation effects of gender, ethnicity, and acculturation on associations of overweight, body image dissatisfaction, and depressive symptoms. RESULTS Significant mediation effect was found only in Asian girls (mediation effect = 0.16, P < 0.05) and girls with high acculturation (mediation effect = 0.17, P < 0.05). Overweight significantly predicted higher body image dissatisfaction, which in turn was significantly related to depressive symptoms. CONCLUSIONS Our findings help understanding the association of overweight and experience of depressive symptoms.

Project FLAVOR: 1-Year Outcomes of a Multicultural, School-Based Smoking Prevention Curriculum for Adolescents

To evaluate a multicultural smoking prevention curriculum, 16 schools were randomized to receive the multicultural curriculum or a standard curriculum and program effects on 1-year smoking initiation among 1430 never smokers were assessed. Hispanic boys who received the multicultural curriculum were less likely to initiate smoking than were those who received the standard curriculum; effects were insignificant among other groups. The prevention effect among Hispanic boys is encouraging, but additional research is needed to improve prevention effects among other groups.

Understanding the effect of social capital on the depression of urban Chinese adolescents: an integrative framework.

Using data from an ongoing longitudinal study of 5,164 adolescents and their parents from seven cities in mainland China, this study investigated how social capital embedded in the family and the community, together with family human capital and financial capital, influenced the depressive symptoms of urban Chinese adolescents within an integrative framework. The structural equation modeling results suggested that higher community social capital was associated with lower level of adolescent depressive symptoms and was the strongest predictor among all these contextual factors. Family social capital played a significant role in mediating the effects of all other contextual factors on adolescent depressive symptoms. Unexpectedly, higher family financial capital predicted increased depressive symptoms both directly and indirectly through its negative effect on family social capital. As for gender, female adolescents reported more depressive symptoms as a result of less available family social capital. Implications of these findings for theory, practice, policy, and future research are discussed.