Relational Priming Based on a Multiplicative Schema for Whole Numbers and Fractions

Why might it be (at least sometimes) beneficial for adults to process fractions componentially? Recent research has shown that college‐educated adults can capitalize on the bipartite structure of the fraction notation, performing more successfully with fractions than with decimals in relational tasks, notably analogical reasoning. This study examined patterns of relational priming for problems with fractions in a task that required arithmetic computations. College students were asked to judge whether or not multiplication equations involving fractions were correct. Some equations served as structurally inverse primes for the equation that immediately followed it (e.g., 4 × 3/4 = 3 followed by 3 × 8/6 = 4). Students with relatively high math ability showed relational priming (speeded solution times to the second of two successive relationally related fraction equations) both with and without high perceptual similarity (Experiment 2). Students with relatively low math ability also showed priming, but only when the structurally inverse equation pairs were supported by high perceptual similarity between numbers (e.g., 4 × 3/4 = 3 followed by 3 × 4/3 = 4). Several additional experiments established boundary conditions on relational priming with fractions. These findings are interpreted in terms of componential processing of fractions in a relational multiplication context that takes advantage of their inherent connections to a multiplicative schema for whole numbers.     

Reevaluating Suicidal Behaviors: Comparing Assessment Methods to Improve Risk Evaluations

This study examined suicide assessment validity by comparing methods of measuring current risk associated with past suicidal behaviors. Three independent samples (Ns = 359, 1007, and 713; aged 18–76 years) all included participants covering a broad spectrum of suicidality. Information theory, item response theory, general linear modeling, and linear regression modeling tested seven competing methods/models of assessing past suicidal behaviors in relation to current suicidality. In contrast to contemporary theories, ANOVA results showed suicide plans can indicate higher risk than suicide attempts when intent to die is higher. Contrary to popular practice, evidence demonstrated that defining risk by suicide ideation (yes/no), attempts or serious attempts (yes/no), are false dichotomies, were the least valid models tested, and failed to explain substantial explainable variance in suicidality/risk. A newly proposed model, differentiating behaviors with or without intent to die, was the most efficacious dichotomous method. However, as predicted, continuous variables were superior to dichotomous. The proposed suicidal barometer model (SBM) exhibited robust evidence as the best available model for evaluating suicidal behaviors in all samples (100 % probability), explaining 47–61 % of suicidality variance and provided incremental improvement in risk evaluations. Findings were consistent by sample, sex, age-group, ethnicity, and psychiatric history. This study, and related evidence, demonstrate that there is a clear and present need for updating measures, clinical training and core competencies, for valid assessment and risk formulation.     

Skin Tone,Crime News,and Social Reality Judgments: Priming the Stereotype of the Dark and Dangerous Black Criminal1

An experiment examined the extent to which viewers’ emotional discomfort with a crime story and perceptions and memorability of a perpetrator and victim could be influenced by the race and skin tone of the perpetrator portrayed in a newscast. Participants were exposed either to a White, light–skinned Black, medium–skinned Black, or dark–skinned Black perpetrator. In addition, participants provided self–reports of their news viewing habits. Results revealed that heavy television news viewers were more likely than light viewers to feel emotional discomfort after being exposed to the dark–skinned Black perpetrator. Heavy news viewers also had favorable perceptions of the victim when the perpetrator was Black, regardless of skin tone. Results also indicated that all participants, regardless of prior news exposure, found the perpetrator more memorable when the perpetrator was a dark–skinned Black male. The methodological and theoretical implications of these findings are discussed.     

THE ORDINARY LANGUAGE BASIS FOR CONTEXTUALISM, AND THE NEW INVARIANTISM

I present the features of the ordinary use of 'knows' that make a compelling case for the contextualist account of that verb, and I outline and defend the methodology that takes us from the data to a contextualist conclusion. Along the way, the superiority of contextualism over subject-sensitive invariantism is defended, and, in the final section, I answer some objections to contextualism.     

Exploring the Vocational Rehabilitation Acceptance Rates for Hispanics Versus Non‐Hispanics in the United States

Compared with other ethnic minorities in the United States, numbers for the Hispanic population are significantly escalating. In the study described here, a chi‐square test of proportions was used to examine the vocational rehabilitation (VR) acceptance rates among Hispanics and non‐Hispanics. The test statistic revealed a statistically significant difference between race/ethnicity and VR acceptance. In particular, Hispanics are more likely to be accepted for VR services than are non‐Hispanics in the United States. Implications for VR counselors are discussed.     

Bifactor and item response theory analyses of interviewer report scales of cognitive impairment in schizophrenia

A psychometric analysis of 2 interview-based measures of cognitive deficits was conducted: the 21-item Clinical Global Impression of Cognition in Schizophrenia (CGI-CogS; Ventura et al., 2008), and the 20-item Schizophrenia Cognition Rating Scale (SCoRS; Keefe et al., 2006), which were administered on 2 occasions to a sample of people with schizophrenia. Traditional psychometrics, bifactor analysis, and item response theory methods were used to explore item functioning and dimensionality and to compare instruments. Despite containing similar item content, responses to the CGI-CogS demonstrated superior psychometric properties (e.g., higher item intercorrelations, better spread of ratings across response categories) relative to the SCoRS. The authors argue that these differences arise mainly from the differential use of prompts and how the items are phrased and scored. Bifactor analysis demonstrated that although both measures capture a broad range of cognitive functioning (e.g., working memory, social cognition), the common variance on each is overwhelmingly explained by a single general factor. Item response theory analyses of the combined pool of 41 items showed that measurement precision is peaked in the mild to moderate range of cognitive impairment. Finally, simulated adaptive testing revealed that only about 10 to 12 items are necessary to achieve latent trait level estimates with reasonably small standard errors for most individuals. This suggests that these interview-based measures of cognitive deficits could be shortened without loss of measurement precision.     

Semantic priming is affected by real-time phonological competition: Evidence for continuous cascading systems

Lexical-semantic access is affected by the phonological structure of the lexicon. What is less clear is whether such effects are the result of continuous activation between lexical form and semantic processing or whether they arise from a more modular system in which the timing of accessing lexical form determines the timing of semantic activation. This study examined this issue using the visual world paradigm by investigating the time course of semantic priming as a function of the number of phonological competitors. Critical trials consisted of high or low density auditory targets (e.g., horse) and a visual display containing a target, a semantically related object (e.g., saddle), and two phonologically and semantically unrelated objects (e.g., chimney, bikini). Results showed greater magnitude of priming for semantically related objects of low than of high density words, and no differences for high and low density word targets in the time course of looks to the word semantically related to the target. This pattern of results is consistent with models of cascading activation, which predict that lexical activation has continuous effects on the level of semantic activation, with no delays in the onset of semantic activation for phonologically competing words.     

Lexical stress and phonetic processing in word learning in 20- to 24-month-old English-learning children

To investigate the interaction between segmental and supra-segmental stress-related information in early word learning, two experiments were conducted with 20- to 24-month-old English-learning children. In an adaptation of the object categorization study designed by Nazzi and Gopnik (2001), children were presented with pairs of novel objects whose labels differed by their initial consonant (Experiment 1) or their medial consonant (Experiment 2). Words were produced with a stress initial (trochaic) or a stress final (iambic) pattern. In both experiments successful word learning was established when the to-be-remembered contrast was embedded in a stressed syllable, but not when embedded in unstressed syllables. This was independent of the overall word pattern, trochaic or iambic, or the location of the phonemic contrast, word-initial or -medial. Results are discussed in light of the use of phonetic information in early lexical acquisition, highlighting the role of lexical stress and ambisyllabicity in early word processing.     

Gains in fluid intelligence after training non-verbal reasoning in 4-year-old children: a controlled, randomized study

Fluid intelligence (Gf) predicts performance on a wide range of cognitive activities, and children with impaired Gf often experience academic difficulties. Previous attempts to improve Gf have been hampered by poor control conditions and single outcome measures. It is thus still an open question whether Gf can be improved by training. This study included 4-year-old children (N = 101) who performed computerized training (15 min/day for 25 days) of either non-verbal reasoning, working memory, a combination of both, or a placebo version of the combined training. Compared to the placebo group, the non-verbal reasoning training group improved significantly on Gf when analysed as a latent variable of several reasoning tasks. Smaller gains on problem solving tests were seen in the combination training group. The group training working memory improved on measures of working memory, but not on problem solving tests. This study shows that it is possible to improve Gf with training, which could have implications for early interventions in children.     

Grandiose and vulnerable narcissism: a nomological network analysis

Evidence has accrued to suggest that there are 2 distinct dimensions of narcissism, which are often labeled grandiose and vulnerable narcissism. Although individuals high on either of these dimensions interact with others in an antagonistic manner, they differ on other central constructs (e.g., Neuroticism, Extraversion). In the current study, we conducted an exploratory factor analysis of 3 prominent self-report measures of narcissism (N=858) to examine the convergent and discriminant validity of the resultant factors. A 2-factor structure was found, which supported the notion that these scales include content consistent with 2 relatively distinct constructs: grandiose and vulnerable narcissism. We then compared the similarity of the nomological networks of these dimensions in relation to indices of personality, interpersonal behavior, and psychopathology in a sample of undergraduates (n=238). Overall, the nomological networks of vulnerable and grandiose narcissism were unrelated. The current results support the need for a more explicit parsing of the narcissism construct at the level of conceptualization and assessment.