Hypothesis Testing of the <Emphasis Type="Italic">Q</Emphasis>-matrix

The recent surge of interests in cognitive assessment has led to the development of cognitive diagnosis models. Central to many such models is a specification of the Q-matrix, which relates items to latent attributes that have natural interpretations. In practice, the Q-matrix is usually constructed subjectively by the test designers. This could lead to misspecification, which could result in lack of fit of the underlying statistical model. To test possible misspecification of the Q-matrix, traditional goodness of fit tests, such as the Chi-square test and the likelihood ratio test, may not be applied straightforwardly due to the large number of possible response patterns. To address this problem, this paper proposes a new statistical method to test the goodness fit of the Q-matrix, by constructing test statistics that measure the consistency between a provisional Q-matrix and the observed data for a general family of cognitive diagnosis models. Limiting distributions of the test statistics are derived under the null hypothesis that can be used for obtaining the test p-values. Simulation studies as well as a real data example are presented to demonstrate the usefulness of the proposed method.     

Variations of career decision ambiguity tolerance between China and the United States and between high school and college

The variation of career decision ambiguity tolerance (CDAT) by cultures and development stages was examined in a sample of Chinese high school students (n = 339), a sample of Chinese college students (n = 356), along with U.S. college students (n = 328). It was hypothesized that career decision ambiguity tolerance decreases when individuals experience more societal/cultural pressure on decidedness and responsibility for their career decision making. Based on the three-factor structure of CDAT (i.e., preference, tolerance, and aversion), measurement invariance was examined between Chinese and U.S. college students and between Chinese high school and college students. While the factor of tolerance was not upheld in both Chinese samples, the factors of preference and aversion were found to be structurally invariant across cultures and developmental stages. The analyses comparing means of preference and aversion found that U.S. college students had a higher level of preference relative to Chinese college students. It was also found that in comparison to Chinese high school students, Chinese college students had a higher level of aversion. The criterion validity of CDAT in Chinese culture was supported in the findings of preference and aversion being associated with career exploration and career indecision. The implication of this study was discussed along with its limitations and suggestions for future research.     

The Way Evaluation Tastes: Tasting as an Embodied Cue of Evaluation

The current theory and research on embodiment have indicated that the basic bodily experiences, which may be more fundamental and important than previously suggested, can influence human cognitive processes. Drawing upon this perspective, the present study examined the hypothesis that the psychological experience of evaluation is grounded in the physical experience of tasting. In three experiments, we found that a tasting cue facilitated evaluation-related conceptual processing in a lexical decision task (Experiment 1), and induced a desire to evaluate toward novel stimuli (Experiment 2). Furthermore, sweet tastes were associated with more positive and secure evaluations than bitter tastes (Experiment 3). These findings provide converging evidence supporting the prediction that tasting as an embodied cue of evaluation.     

National Culture,Creativity, and Productivity: What’s the Relationship with Student Achievement?

Using Hofstede’s culture dimensions and World Values Survey (WVS) dimensions, the study uses a series of multiple regressions to explore the relationship among national culture, creativity as measured by patents, economic productivity as measured by gross domestic product per capita, and student achievement as measured by Trends in International Mathematics and Science Study. The findings of this exploratory study highlight long-term orientation value from Hofstede’s national culture dimensions and tradition versus secular-rational values from the WVS as the most significant predictors of student academic achievement. A series of 12 regression analyses indicated significant relationships among student achievement, creativity, and economic productivity with models explaining between 19.9% and 76.0% of the variance among countries.     

Relationship between sleep disturbance,depression and anxiety in the 12 months following a cardiac event

We aimed to assess the prevalence of sleep disturbance in a cardiac patient population over a 12-month period and assess its relationship with treatment adherence, self-efficacy, anxiety and depression. A total of 134 patients consecutively admitted to two Australian hospitals after acute myocardial infarction (31%), or to undergo bypass surgery (29%) or percutaneous coronary intervention (40%) were interviewed at six weeks and four and 12 months. Sleep disturbance was measured using a recode of the Beck Depression Inventory (v.2) item 16. Anxiety and depression were assessed by the Hospital Anxiety and Depression Scale. Sleep disturbance was highly prevalent (69%) at 6 weeks but was not associated with 12-month psychological outcomes. Path analysis revealed that sleep disturbance at 4 months was, however, associated with reduced treatment adherence and self-efficacy, and higher anxiety and depression scores at 12 months. The high prevalence of sleep disturbance in this study and its association with psychological outcomes may have adverse prognostic implications and possibly impede cardiac rehabilitation efforts.     

Association between MTHFR C677T polymorphism and depression: a meta-analysis in the Chinese population

Depression is a worldwide public health issue, and its prevalence increases each year. Although a number of studies have been conducted on the association between MTHFR C677T polymorphism and depression in China, this association remains elusive and controversial. To clarify the impact of MTHFR C677T polymorphism on the risk of depression, a meta-analysis was performed in the Chinese population. Relevant studies were identified using PubMed, Springer Link, Ovid, Chinese Wanfang Data Knowledge Service Platform, Chinese National Knowledge Infrastructure and Chinese Biology Medicine through May 5, 2015. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the strength of the associations. A total of 13 case–control studies including 1895 patients and 1913 controls were involved in this meta-analysis. Overall, T variant of MTHFR C677T gene polymorphism was significantly associated with an increased risk of depression in the Chinese population (T vs. C: OR = 1.52, 95% CI = 1.24–1.85; TT + CT vs. CC: OR = 1.64, 95% CI = 1.16–2.30; TT vs. CC: OR = 2.19, 95% CI = 1.49–3.24; TT vs. CC + CT: OR = 1.80, 95% CI = 1.31–2.46). In subgroup analyses stratified by geographic area and source of controls, the significant results were found in population-based studies, in hospital-based studies, in North and South China. The risk conferred by MTHFR C677T polymorphism is higher in North China than in South China. In conclusion, this meta-analysis suggests that MTHFR C677T polymorphism is associated with depression in the Chinese population, but these associations vary in different geographic locations.     

Affect and Affect Regulation Strategies Reciprocally Influence Each Other in Daily Life: The Case of Positive Reappraisal,Problem-Focused Coping,Appreciation and Rumination

Feelings of positive or negative affect are not restricted to temporary states. They can also determine future affective experiences, by influencing the building of an individual’s personal resources. The present study was designed to understand the daily fluctuations in positive and negative affect more fully. To this end, we examined the involvement of a variety of affect regulation strategies in these fluctuations. The affect regulation strategies we explored included positive reappraisal, problem-focused coping, appreciation and rumination. We adopted an experience sampling method, consisting of five daily assessments over a 2-week period. As expected, within a few hours of experiencing more positive affect, participants engaged in greater positive reappraisal, problem-focused coping and appreciation. In turn, greater use of each of these three strategies was followed by more intense experiences of positive affect. We observed analogous reciprocal influences between rumination and the experience of negative affect, within the same time interval. Changes in affective experience over several hours were also directly influenced by concurrent use of these strategies. More specifically, greater positive reappraisal, problem-focused coping and appreciation accelerated the rise in positive affect that follows low feelings of positive affect, and slowed the decline in positive affect that follows high feelings. Rumination had an analogous influence on change in negative affect. The clinical implications of these findings are discussed.     

Gendered God Imagery and Attitudes Toward Mothers’ Labor Force Participation: Examining the Transposable Character of Religious Schemas

God imagery has been shown to have a profound influence on a diverse array of attitudes and behaviors. Research has also underscored the religious antecedents of traditionalist gender ideologies. This study integrates these parallel literatures by examining the degree to which gendered God imagery is a transposable schema that is associated with attitudes toward mothers’ paid labor force participation. We hypothesize that otherworldly schemas predicated on gender difference—namely, paternal and maternal images of God—have this‐worldly consequences by reinforcing opposition to mothers’ workforce participation. Analyses of General Social Survey data reveal strong support for this hypothesis. The evidence also demonstrates that paternal God images produce particularly robust and persistent opposition to mothers’ labor force participation net of other factors. Additional hypotheses about the interaction effects exhibited by gendered God imagery, prayer, and worship service attendance are modestly supported. We conclude by discussing our study's implications and outlining directions for future research.     

Dissociable effects of fear and disgust in proactive and reactive inhibition

Numerous studies have demonstrated that negative emotional distracters impair inhibitory control. Nevertheless, two issues have emerged in prior studies. First, fear and disgust were inappropriately treated as a single category, which is particularly concerning given that they have been recently demonstrated to exert different impacts on inhibitory control. Second, inhibitory control might not be a unitary construct, as it can be further divided into proactive and reactive inhibition. Therefore, the present study aimed to investigate whether fearful and disgusting distracters have differential effects on proactive and reactive inhibition. Twenty-four female participants were instructed to perform a modified stop-signal task superimposed on a fearful, disgusting, or neutral image cue. Results showed that fearful distracters improved reactive inhibition when compared to disgusting and neutral distracters, while disgusting distracters enhanced proactive inhibition when compared to fearful distracters. Further, reactive and proactive inhibition was positively correlated under fearful, disgusting, and neutral contexts. This study is the first to provide evidence that fear and disgust may affect proactive and reactive inhibition differently. These results add to a growing literature linking emotion and inhibitory control, and they expand our understanding of the relationship between emotion and inhibition.     

Development of executive functioning in school-age Tunisian children

Research regarding executive functioning (EF) in children rarely focuses on populations in African or Middle-Eastern Arabic-speaking countries. The current study used a cross-sectional design to examine the developmental trajectories of school-age Tunisian children in three domains of executive control (inhibition of prepotent responses, cognitive flexibility, and working memory) as well as their mutual interactions and the effects of gender and parents’ education level. Inhibitory processes, cognitive flexibility, and working memory were assessed using the Stroop test, a version of the Hayling test adapted for children, simple and alternating tasks of verbal fluency, and verbal and visuospatial span tasks (forward and backward spans). The study population included 120 7- to 12-year-old Tunisian children (60 girls, 60 boys) who were grouped and matched for age, gender, and parents’ education level. The results revealed an overall effect of age on executive performance, whereas gender and parents’ education level showed non-significant effects. In addition, executive indices were significantly associated with fluid intelligence level. Partial correlation analyses (controlled for age) found significant links between indices that assessed the same executive process, except for inhibitory processes; the temporal indices for inhibitory processes showed relative independence. The correlations between indices that assessed distinct executive processes were weaker (but significant). Overall, the results suggest that executive components in school-age Tunisian children operate according to relatively homogeneous developmental trajectories, marked by peaks of maturity that differ according to the assessed index. A transcultural approach to EF is discussed in terms of the unity and diversity of its components.