Does living with a female head-of-household affect the arithmetic achievement of black fourth-grade pupils?

It was the purpose of this investigation to examine the effects of living with a male or female head-of-household upon the arithmetic performance of fourth graders. No significant differences were found in mean scores between male and female pupils. Significant differences were found favoring those pupils living with male heads-of-households, particularly for female pupils and for pupils with IQ scores greater than 100. These findings should not be considered as simple cause and effect relationships, but rather as indicative of potential difficulty for some pupils.     

What is the ‘personal’ in ‘personal information’?

Ethics and Information Technology - Contemporary privacy theories and European discussions about data protection employ the notion of ‘personal information’ to designate their areas of...     

A Symbiosis of Access: Proliferating STEM PhD Training in the U.S. from 1920–2010

Minerva - Over the course of the 20th century, unprecedented growth in scientific discovery was fueled by broad growth in the number of university-based scientists. During this period the American...     

Cognitive-inspired domain adaptation of sentiment lexicons

Sentiment lexicons are essential tools for polarity classification and opinion mining. In contrast to machine learning methods that only leverage text features or raw text for sentiment analysis, methods that use sentiment lexicons embrace higher interpretability. Although a number of domain-specific sentiment lexicons are made available, it is impractical to build an ex ante lexicon that fully reflects the characteristics of the language usage in endless domains. In this article, we propose a novel approach to simultaneously train a vanilla sentiment classifier and adapt word polarities to the target domain. Specifically, we sequentially track the wrongly predicted sentences and use them as the supervision instead of addressing the gold standard as a whole to emulate the life-long cognitive process of lexicon learning. An exploration-exploitation mechanism is designed to trade off between searching for new sentiment words and updating the polarity score of one word. Experimental results on several popular datasets show that our approach significantly improves the sentiment classification performance for a variety of domains by means of improving the quality of sentiment lexicons. Case-studies also illustrate how polarity scores of the same words are discovered for different domains.     

To Catch a Liar: Challenges for Research in Lie Detection Training

Can we train people to detect deception? It is the contention of this article that communication scholars should learn how to train law enforcement professionals on how to detect high stake lies, like those faced by police, judges, customs officials, immigration officials, and so forth. It is proposed that in order to know whether we can train or should bother to train people to detect deception, each training study must meet 6 challenges: (1) relevance, (2) high stakes, (3) proper training, (4) proper testing, (5) generalizability across situations, and (6) generalizability over time. Our quantitative review of the literature suggests that training does significantly raise lie detection accuracy rates. Meta-analytic findings indicate a mean effect size of r = .20 across 20 (11 published studies) paired comparisons of lie detection training versus the control group (i.e., those without some type of training). It should be noted that the majority of the studies that attempt to train lie detectors fall short on many of the above challenges. Current research in lie detection training may actually underestimate the ability to train lie detectors due to the stimulus materials employed in most experiments.     

The Royal Statistical Society Schools Lecture 2004: ‘Lies and Statistics’, Part 2

This article concludes the serialization of the Royal Statistical Society's Schools Lecture for 2004, on ‘Lies and statistics’.     

The relationship between bilingual proficiency and self-esteem

Proposing that bilingual proficiency should produce a more favorable attitude toward bilingualism and should enhance one's self-esteem, the authors compared 57 bilingual and 67 unilingual students from grades 9, 10, and 11, measuring their opinions about bilingualism and their self-esteem. The bilingual students are substantially more favorably disposed toward bilingualism than the unilingual students are. On the Janis-Field scale of self-esteem, the bilingual students show greater self-esteem than the unilingual students. The largest differences between the groups are on questions that measure self-confidence and social ease; differences are less pronounced on questions about self-worth and about shyness. We speculate that bilingual proficiency offers some psychological advantages to students who achieve it.