青少年疏离感与病理性互联网使用的关系：家庭功能和同伴接纳的调节效应检验

通过对549名初一至高二年级城市青少年的问卷调查, 考察了青少年病理性互联网使用的特点及其与疏离感之间的关系, 并对家庭功能和同伴接纳是否可以调节疏离感与病理性互联网使用之间的关系进行了检验。结果发现：(1)在所有使用互联网的青少年被试中, 网络成瘾群体的检出率为8.93%; (2)女青少年病理性互联网使用的突显性水平高于男青少年。在病理性互联网使用的消极后果上, 初一青少年高于高一、初三和高二青少年。但青少年病理性互联网使用总体上不存在显著的性别和年级差异; (3)疏离感较高的青少年病理性互联网使用的水平也较高, 健康的家庭功能可以保护疏离感高的青少年减少病理性互联网使用, 但同伴接纳对高疏离感青少年减少病理性互联网使用不具有保护性作用。     

Connectedness and Self‐Regulation as Constructs of the Student Success Skills Program in Inner‐City African American Elementary School Students

The authors evaluated a small‐group counseling intervention, Student Success Skills, provided to 53 inner‐city, 4th‐ and 5th‐grade African American students. Compared with the control group, students who received the treatment reported significant changes in metacognitive skill and feelings of connectedness to school. Furthermore, treatment‐group students received higher posttest change scores on certain executive functioning subscale items, as reported by their classroom teachers. Implications for counseling practice are presented.     

Social,Religious and Spiritual Capital and Physical/Emotional Functioning in a National Sample of African Americans

Spiritual and religious capital are forms of the broader construct of social capital. The present study, using probability‐based sampling methods, surveyed a national sample of African American adults to examine the relative contributions of spiritual and religious capital to their physical and emotional functioning. Analyses were conducted to determine if these constructs made a unique contribution above and beyond general social capital. African American men and women (N = 803) were interviewed by telephone. Hierarchical linear regressions revealed that, across the full sample, although social capital was a positive predictor of physical and emotional functioning (p < .05 and p < .001), neither religious nor spiritual capital made an additional contribution to these outcomes. However, the relationships among these variables differed for men and women. Among men, social capital predicted positive emotional functioning (p < .001) but not physical functioning; spiritual and religious capital made no additional contribution to either outcome variable. Among women, social capital predicted positive emotional functioning (p < .01) but not physical functioning. However, religious capital did make a significant additional contribution to the prediction of emotional functioning (ΔR², p < .01). Dividing the sample into different age groups did not produce any different findings from those found with the sample as a whole. Findings are discussed in terms of implications for church‐ and faith‐based health promotion interventions aimed at health disparities reduction. Copyright © 2011 John Wiley & Sons, Ltd.     

Perceived coach-autonomy support, basic need satisfaction and the well- and ill-being of elite youth soccer players: A longitudinal investigation

Objectives

Drawing from the basic needs theory [BNT; Ryan, R. M., & Deci, E. L. (2002). An overview of self-determination theory. In E. L. Deci, & R. M. Ryan (Eds.), Handbook of self-determination research (pp. 3-33). Rochester, NY: University of Rochester Press], the major purpose of the present study was to test a hypothesized sequence of temporal relationships between perceptions of coach-autonomy support, basic need satisfaction and indices of well- and ill-being. A subsidiary aim was to ascertain the assumed mediational role of basic need satisfaction in explicating the perceived autonomy support and well-/ill-being relationships over time.

Design

A field-based longitudinal design was employed.

Methods

Participants (N = 54 males) from an elite youth soccer academy in the UK completed a multi-section questionnaire tapping the targeted variables on six occasions across two competitive seasons.

Results

Multi-level regression analyses revealed that perceptions of coach-autonomy support positively predicted within-person changes and between-person mean differences in basic need satisfaction and well-being over time. Satisfaction scores for the needs for competence and relatedness were found to predict within-person changes in subjective vitality. These same needs partially mediated the coach-autonomy support-subjective vitality link over the two seasons.

Conclusions

The findings partially support the tenets of BNT, and are discussed in terms of their practical application to participants involved in an elite youth sport setting.     

认知诊断测验中基于信息矩阵的多群组DIF检验

基于改进的Wald统计量,将适用于两群组的DIF检测方法拓展至多群组的项目功能差异（DIF）检验;改进的Wald统计量将分别通过计算观察信息矩阵（Obs）和经验交叉相乘信息矩阵（XPD）而得到。模拟研究探讨了此二者与传统计算方法在多个群组下的DIF检验情况,结果表明：（1）Obs和XPD的一类错误率明显低于传统方法,DINA模型估计下Obs和XPD的一类错误率接近理论水平;（2）样本量和DIF量较大时,Obs和XPD具有与传统Wald统计量大体相同的统计检验力。     

The bilingual effects of linguistic distances on episodic memory and verbal fluency

The impact of linguistic distance or the relatedness between two languages, on bilinguals’ episodic memory performance and verbal fluency is an understudied area. Thus, the purpose of this study was to determine if differences in linguistic distances have differential effects on these abilities. Measures of episodic recognition, categorical fluency, and global cognitive functioning were also considered in the analyses. Two matched samples with participants living and educated in Sweden were drawn from the Betula Prospective Cohort Study. Results showed that bilinguals who speak linguistically similar languages (Swedish and English), performed significantly better than monolinguals on both episodic memory recall and letter fluency, while bilinguals who speak two languages that are more distant (Swedish and Finnish), showed no advantages compared to their monolingual counterparts. For both tasks, however, a linear trend was observed indicative of better performance for the Swedish-English group compared to the Finnish-Swedish group, and for the Swedish-Finnish group compared to the monolinguals group. As expected, no differences between groups were found in any of the other cognitive tasks. Overall, results suggest that the impact of linguistic distances should be explored in more detail in the future.     

A Method of Correcting Estimation Failure in Latent Differential Equations with Comparisons to Kalman Filtering

Abstract

Studies have used the latent differential equation (LDE) model to estimate the parameters of damped oscillation in various phenomena, but it has been shown that correct, non-zero parameter estimates are only obtained when the latent series exhibits little or no process noise. Consequently, LDEs are limited to modeling deterministic processes with measurement error rather than those with random behavior in the true latent state. The reasons for these limitations are considered, and a piecewise deterministic approximation (PDA) algorithm is proposed to treat process noise outliers as functional discontinuities and obtain correct estimates of the damping parameter. Comprehensive, random-effects simulations were used to compare results with those obtained using a state-space model (SSM) based on the Kalman filter. The LDE with the PDA algorithm (LDEPDA) successfully recovered the simulated damping parameter under a variety of conditions when process noise was present in the latent state. The LDEPDA had greater precision and accuracy than the SSM when estimating parameters from data with sparse jump discontinuities, but worse performance for diffusion processes overall. All three methods were applied to a sample of postural sway data. The basic LDE estimated zero damping, while the LDEPDA and SSM estimated moderate to high damping. The SSM estimated the smallest standard errors for both frequency and damping parameter estimates.     

Highly sensitive adolescents: The relationship between weekly life events and weekly socioemotional well-being

Recent research into Person × Environment interaction has supported the view that sensitivity to environmental influences is a susceptibility factor rather than a vulnerability factor. Given this perspective, this study examined the role of the adolescent’s sensory-processing sensitivity in the context of weekly life events and weekly socioemotional well-being. In the study, 114 adolescents repeatedly self-reported their sensitivity, recent life events, and recent socioemotional well-being in four surveys at one-week intervals. The results suggested the shape of Sensitivity × Life Events interaction significantly varied from week to week, which is consistent with the vantage sensitivity and diathesis–stress framework. In specific weeks, adolescents with high sensitivity are more likely to benefit from positive events than those with low sensitivity. These sensitive adolescents can be described as developmentally susceptibility rather than vulnerability.     

Consequences of Ignoring Guessing Effects on Measurement Invariance Analysis

Pseudo-guessing parameters are present in item response theory applications for many educational assessments. When sample size is not sufficiently large, the guessing parameters may be ignored from the analysis. This study examines the impact of ignoring pseudo-guessing parameters on measurement invariance analysis, specifically, on item difficulty, item discrimination, and mean and variance of ability distribution. Results show that when non-zero guessing parameters are ignored from the measurement invariance analysis, item discrimination estimates tend to decrease particularly for more difficult items, and item difficulty estimates decrease unless the items are highly discriminating and difficult. As the guessing parameter increases, the size of the decrease in item discrimination and difficulty tends to increase, and the estimated mean and variance of ability distribution tend to be inaccurate. When two groups have heterogeneous ability distributions, ignoring the guessing parameter affects the reference group and the focal group differently. Implications of result findings are discussed.