Variable Weighting via Multidimensional IRT Models in Composite Indicators Construction

One of the most controversial steps in Composite Indicators (CIs) construction is the selection of one (possibly) best weighting technique. In this paper, we introduce a new endogenous weighting methodology developed in an extended Item Response Theory (IRT) framework. As weighting is much more thorough when carried out by accounting for the dimensionality of a dataset rather than by ignoring it, we suggest to assign weights on the basis of the discrimination parameters estimated through a multidimensional two-parameter logistic IRT model. Specifically, the procedure is developed through two consecutive steps. The first applies a hierarchical clustering algorithm to ascertain the number of dimensions measured by the data. The second estimates the discrimination parameters under the multidimensional two-parameter logistic model selected at the first step. The discrimination parameters can then be used to compare and weight the items that refer to the same dimension. Besides, in order to make such discrimination indices comparable across dimensions, the distribution of the latent trait is standardised for each dimension. The potentialities of this novel weighting technique are illustrated through an application to educational data, which refer to a national standardised test developed and collected by the Italian National Institute for the Evaluation of the Education System.     

Promoting “Zest for Life”: A Systematic Literature Review of Resiliency Factors to Prevent Youth Suicide

Suicide is a leading cause of death among youth globally. In this critical interpretive synthesis, we examined literature on resiliency factors and suicidality. Systematic searches identified 474 articles, 37 of which were included. Results revealed internal (positive self‐appraisal, zest for life, personal traits, and coping skills) and external factors (social support system and inclusive environments) contribute to resilience among youth, with age, sex and gender, and Indigenous identity as important intersecting considerations. Findings validated fostering resilience as primary suicide prevention among youth, with little explanation for how these factors may work to protect youth from suicidality. Continued research in this area requires a focus on how to promote resilience at the community and systems levels.     

Interpreting Null Results from Measurements with Uncertain Correlations: An Info‐Gap Approach

Null events—not detecting a pernicious agent—are the basis for declaring the agent is absent. Repeated nulls strengthen confidence in the declaration. However, correlations between observations are difficult to assess in many situations and introduce uncertainty in interpreting repeated nulls. We quantify uncertain correlations using an info‐gap model, which is an unbounded family of nested sets of possible probabilities. An info‐gap model is nonprobabilistic and entails no assumption about a worst case. We then evaluate the robustness, to uncertain correlations, of estimates of the probability of a null event. This is then the basis for evaluating a nonprobabilistic robustness‐based confidence interval for the probability of a null.     

The Hedonic and Eudaimonic Validity of the Orientations to Happiness Scale

The orientations to happiness scale (OTH) was designed to measure three routes to happiness: pleasure (hedonia), meaning (eudaimonia) and engagement (flow). Past research utilising the scale suggests that all orientations predict life satisfaction, with meaning and engagement the stronger predictors relative to pleasure. However, these findings are inconsistent with other research; one plausible explanation being that the OTH scale lacks validity. This was tested by having participants (N = 107) complete the OTH scale and the Satisfaction with Life scale, prior to completing an online diary reporting actual instances of hedonic and eudaimonic behaviour. Although meaning predicted eudaimonic behaviour, the pleasure orientation was unrelated to hedonic behaviour. Further, hedonic behaviour was more strongly related to life satisfaction than eudaimonic behaviour; inconsistent with OTH scale results. These findings challenge the validity of the OTH scale, and subsequently bring into question those conclusions drawn from past research utilising the OTH scale.     

论经济法的几个关键词——兼论王保树教授对经济法的贡献

关键词是人们认识事物的关键,认识了事物的关键词就能够提纲挈领地认识事物。经济法亦然,经济法的关键词包括经济法学说、调整对象、社会公共性、社会整体调节机制、经济法体系等,对这些关键词的科学论述,能够正确地认识经济法。其中王保树教授对这些关键词作出过重要解说。     

It Takes Two for a Culture War

This article examines the tense relations between religious and secular in Israel and the prospects for what has been described by different observers as a “culture war.” Specifically, the consequences and implication of the challenges to church‐state arrangements by social, economic, and demographic changes, and growing religious‐secular tensions are studied. The empirical investigation of these issues relies on a survey (n = 508) of a representative, random sample of the adult Jewish population in Israel. Research findings indicate that the culture war scenario exaggerates the actual state of affairs because secularism in Israel is lacking coherence and commitment and alternatives that circumvent conflict are available. Rather than a culture war between the religious and secular camps in Israel, different battles are taking place, waged in different realms with different constituencies, tactics, strategies, and levels of commitment whose combined outcome is yet to be determined.