Trajectories of Perceived Parental Psychological Control across Adolescence and Implications for the Development of Depressive and Anxiety Symptoms

Journal of Youth and Adolescence - Theory and research indicate considerable changes in parental control across adolescence (e.g., declining behavioral control), but the developmental course and...     

Detection of Mitragynine in Mitragyna Speciosa (Kratom) Using Surface-Enhanced Raman Spectroscopy with Handheld Devices

A simple, quick, selective, sensitive, and effective field-friendly method capable of being used by nonexperts has been developed for detecting mitragynine in Mitragyna speciosa (kratom) using surface-enhanced Raman spectroscopy (SERS). Over 100 samples and blanks (known to be either positive or negative for the presence of mitragynine) were examined in duplicate using five identical handheld Raman spectrometers, which provided a data set of over 1,000 examinations. Based on the results of these analyses, the method yielded a true-positive rate of 99.3%, a true-negative rate of 97.9%, a false-positive rate of 2.1%, and a false-negative rate of 0.7%. The average minimum detectable concentration (C_m) of mitragynine that reproducibly yielded a match for one of the library spectra on all five instruments was determined to be 342 ng/mL (ppb). This C_m value is a conservative estimate considering that the extraction process was not fully optimized by this study, which was not necessary since the C_m value achieved was well below typical mitragynine concentrations in kratom (1.3–2.3%). The method is ideal (i) for prioritizing samples for additional testing using other more time-consuming laboratory-based techniques needed to detect and quantify mitragynine and (ii) for field use at international mail facility (IMF) satellite laboratories to help interdict kratom and prevent this dangerous product from reaching the U.S. supply chain.     

The Intergenerational Transmission of Values in National and Immigrant Families: The Role of Zeitgeist

Correspondence in value orientation between parents and their offspring may be due to actual transmission processes between generations, but it may also be due to influences from the general value context in society that are common to parents and their offspring. This common value context is referred to as Zeitgeist. The present study deals with one family relationship value (i.e., parents’ and adolescents’ obligations toward the family). Participants were 1,252 immigrant and 726 national adolescent–parent dyads from 10 Western countries. There were significant relationships between the value placed on family obligations among parents and offspring, and these were independent of gender. Zeitgeist effects, both intergenerational and intragenerational, were found. The strength of these Zeitgeist effects depended on the basis for defining Zeitgeist, either a person’s own ethnic group or the wider community including both nationals and immigrants. For explaining national adolescents’ acceptance of their family obligations, both the ethnic and the national Zeitgeist played a role, whereas in the immigrant groups only the ethnic Zeitgeist played a significant role. In short, in an immigration context it makes sense to distinguish the influence of a person’s own ethnic group from the influence of the wider community, including other ethnic groups. Explanations are suggested and implications are discussed.

A Qualitative Analysis of Vietnamese Adolescent Identity Exploration Within and Outside an Ethnic Enclave

Focusing on identity development explorations enables a greater understanding of contexts that affect immigrant adolescents. Utilizing thematic and grounded narrative analysis of 46 journal writings, during a one-month period, from first and second generation Vietnamese adolescents ranging in age from 15 to 18 (26 residents of a culturally and politically active ethnic enclave in Southern California; 20 adolescents living outside the enclave), this study establishes ways in which a focus on social context and exploration processes illuminates the complexity of immigrant adolescents’ identity formation. The two groups shared many similarities, including precipitants to exploration and steps undertaken to explore identity. However, two factors—social and cultural influences and emotional reactions—revealed interesting contrasts distinguishing enclave from non-enclave dwelling Vietnamese adolescents. Data also suggested that immigrant adolescents strive to integrate different domains of identity (ethnicity, gender, career) both with one another and with the historical, social, and cultural contexts they occupy.

Chinese American Adolescents’ Perceptions of the Language Brokering Experience as a Sense of Burden and Sense of Efficacy

Children of immigrants who do translations and who interpret for others using their heritage language and English are known as language brokers. Although prior research suggests that children of immigrants’ perceptions of the language brokering experience vary greatly—from feeling a sense of efficacy to feeling a sense of burden—what remains unanswered in the literature is identification of the antecedents and processes that help to explain the varying psychological experience of language brokers. Using data from a two-wave prospective longitudinal study of 256 Chinese American adolescents, the present study tested potential mechanisms that may be responsible for adolescents’ perceptions of the language brokering experience as a sense or burden or sense of efficacy. The results demonstrate that adolescents’ Chinese orientation sets in motion a family process that is linked to variations in the perceptions of adolescents’ language brokering experience. Adolescents who are more Chinese oriented have a stronger sense of familial obligation, and these adolescents are more likely to perceive that they matter to their parents. Adolescents’ perceived sense of mattering to parents, in turn, is associated positively with a sense efficacy, and negatively with a sense of burden as language brokers. Those adolescents who are less Chinese oriented have a weaker sense of familial obligation, and these adolescents are more likely to feel a sense of alienation from their parents. Adolescents’ sense of perceived alienation from parents, in turn, is associated with a sense of burden as language brokers. Implications for developing interventions for children who act as language brokers for their parents are discussed.

Associations Between Smoking and Extreme Dieting Among Adolescents

This study examined the association between cigarette smoking and dieting behaviors and trends in that association among US adolescents in grades 9–12 between 1999 and 2007. Youth Risk Behavior Survey datasets were analyzed using the multivariable logistic regression method. The sample size of each survey year ranged from 13,554 to 15,273 with girls representing 49–51% of the sample (N = 71,854). About 62% of the entire study participants were whites and 14% were blacks. Prevalence estimates of current smoking and corresponding 95% confidence intervals were computed across four comparison groups formed by gender and body weight. Extreme dieting was an independent predictor of smoking. Extreme dieters showed a higher variability of smoking behavior than their peers. The magnitude of the association between smoking and extreme dieting became smaller in recent years among adolescents but remained unchanged among non-overweight girls over that same time period. When adolescent smoking behavior is examined, the intensity of dieting behavior should be considered within its association with other co-occurring unhealthy behaviors.     

Perceptions of Problem Behavior in Adolescents’ Families: Perceiver,Target, and Family Effects

Considerable research has focused on the reliability and validity of informant reports of family behavior, especially maternal reports of adolescent problem behavior. None of these studies, however, has based their orientation on a theoretical model of interpersonal perception. In this study we used the social relations model (SRM) to examine family members’ reports of each others’ externalizing and internalizing problem behavior. Two parents and two adolescents in 69 families rated each others’ behavior within a round-robin design. SRM analysis showed that within-family perceptions of externalizing and internalizing behaviors are consistently due to three sources of variance; perceiver, target, and family effects. A family/contextual effect on informant reports of problem behavior has not been previously reported.     

Depressive Symptoms and School Burnout During Adolescence: Evidence from Two Cross-lagged Longitudinal Studies

The main purpose of this study was to examine the extent to which middle and late adolescents’ depressive symptoms predict their later school burnout and, in turn, the extent to which school burnout predicts depressive symptoms. Drawing on data gathered at ages 15–19 in two-three-wave longitudinal studies, we investigated cross-lagged paths between school burnout and depressive symptoms. In Study 1 the participants were 15-year-old adolescents (Time 1: N = 611, Time 2: N = 614, Time 3: N = 725) who completed the School Burnout Inventory and depressive symptoms twice during their final term of comprehensive school and once after the transition to upper secondary high school or vocational school. In Study 2 the participants were 17-year-old adolescents whose school burnout and depressive symptoms were measured three times annually (Time 1: N = 474, Time 2: N = 412, Time 3: N = 414) during their 3 years of secondary education. Results of both studies revealed moderate stability for both school burnout and depressive symptoms. They also showed that school burnout more strongly predicted subsequent depressive symptoms later on than vice versa. Lastly, they revealed cumulative cycles between school burnout and depressive symptoms.