The Internal and External Validity of Sluggish Cognitive Tempo and its Relation with DSM–IV ADHD

Studies of subtypes of DSM-IV attention-deficit/hyperactivity disorder (ADHD) have provided inconsistent support for the discriminant validity of the combined type (ADHD-C) and predominantly inattentive type (ADHD-I). A large sample of children and adolescents with ADHD (N?=?410) and a comparison group without ADHD (N?=?311) were used to test the internal and external validity of sluggish cognitive tempo (SCT), a dimension characterized by low energy and sleepy and sluggish behavior. SCT scores were then incorporated in analyses of ADHD subtypes to test whether the discriminant validity of ADHD-C and ADHD-I could be improved by including SCT symptoms as part of the criteria for ADHD-I. Factor analyses of parent and teacher ratings indicated that six SCT items loaded on a factor separate from symptoms of ADHD and other psychopathology, providing important support for the internal validity of SCT. The external validity of SCT was supported by significant associations between SCT and measures of functional impairment and neuropsychological functioning when symptoms of ADHD and other psychopathology were controlled. However, contrary to initial predictions, high levels of SCT did not identify a subgroup of ADHD-I that was clearly distinct from ADHD-C. Instead, the current results suggest that DSM-IV inattention and SCT are separate but correlated symptom dimensions that are each independently associated with important aspects of functional impairment and neuropsychological functioning.     

Social Media as a Tool for Data Collection: Examining Equivalence of Socially Value-Laden Constructs

Given the changing online environment (from anonymity to social connection) and the importance of establishing equivalence in psychological measures used in online environments, the aim of this research was to examine the equivalence of socially value-laden measures with data sourced from web-based social media and traditional pen-and-paper methods. Data on a suite of socially value-laden measures comparing the equivalence of scores obtained via social media (Facebook) versus offline environments were considered. Participants (N?=?193) completed measures of primary and secondary psychopathy, emotional manipulation, emotional intelligence, interpersonal cognition, social desirability, and ethical position either online or using pen-and-paper in a between groups design. Results suggested that both social media and offline data were equivalent in terms of internal reliability and patterns of relationships among constructs. However, participants were more likely to report higher levels of ethical relativism when completing the measure via social media. These findings highlight the importance of establishing equivalence for specific measures when engaging in online data collection, as well as providing insight into the nature of self-disclosure in the social media environment. Future research should assess the equivalence of other socially value-laden measures in online and pen-and-paper environments.     

Effects of memory instruction on attention and information processing: Further investigation of inhibition of return in item-method directed forgetting

In the item-method directed-forgetting paradigm, the magnitude of inhibition of return (IOR) is larger after an instruction to forget (F) than after an instruction to remember (R). In the present experiments, we further investigated this increased magnitude of IOR after F as compared to R memory instructions (dubbed the F > R IOR difference), in order to understand both the consequences for information processing and the purpose of the differential withdrawal of attention that results in this difference. Words were presented in one of four peripheral locations, followed by either an F or an R memory instruction. Then, a target appeared in either the same location as the previous word or one of the other locations. The results showed that the F > R IOR difference cannot be explained by attentional momentum (Exp. 1), that the spatial compatibility of the response options with target locations is not necessary for the F > R IOR difference to emerge (Exp. 2), and that the F > R IOR difference is location-specific rather than response-specific (Exp. 3). These results are consistent with the view that F > R IOR represents a bias against responding to information emanating from an unreliable source (Taylor & Fawcett, 2011).     

Behavioral Gerontology Research: Where are the Male Participants?

It has been reported that females are underrepresented in several areas of psychological research, which may have significant clinical and theoretical implications. No one has reported, however, whether women are underrepresented in behavioral gerontology research. To make this determination we recorded the gender of participants in behavioral gerontology studies published in six journals. In 129 published studies that included older adults (i.e. people 55 or more years of age) there were a total of 3070 participants, and most (69%) were female. Underrepresentation of men is significant insofar as treatment effects are sometimes gender specific, making it inappropriate to generalize results from females to males (or vice versa). Moreover, underrepresentation of older men suggests that their behavioral needs may not be generating the attention they deserve. Copyright © 2015 John Wiley & Sons, Ltd.     

Which Mental States Are Rationally Evaluable,And Why?

What makes certain mental states subject to evaluation with respect to norms of rationality and justification, and others arational? In this paper, I develop and defend an account that explains why belief is governed by, and so appropriately subject to, evaluation with respect to norms of rationality and justification, one that does justice to the complexity of our evaluative practice in this domain. Then, I sketch out a way of extending the account to explain when and why other kinds of mental states are rationally evaluable. I argue that the cognitive or psychological mechanisms that give rise to and sustain our mental states help to render our mental states appropriate targets for evaluation with respect to norms of rationality and justification when the operation of these mechanisms is responsive, in a specific way, to our judgments about which kinds of considerations constitute rationalizing and justifying reasons for being in states of the relevant sort.     

Eye Remember What Happened: Eye‐Closure Improves Recall of Events but not Face Recognition

Eye‐closure improves event recall. We investigated whether eye‐closure can also facilitate subsequent performance on lineup identification (Experiment 1) and face recognition tasks (Experiment 2). In Experiment 1, participants viewed a theft, recalled the event with eyes open or closed, mentally rehearsed the perpetrator's face with eyes open or closed, and viewed a target‐present or target‐absent lineup. Eye‐closure improved event recall, but did not significantly affect lineup identification accuracy. Experiment 2 employed a face recognition paradigm with high statistical power to permit detection of potentially small effects. Participants viewed 20 faces and were later asked to recognize the faces. Thirty seconds before the recognition task, participants either completed an unrelated distracter task (control condition), or were instructed to think about the face with their eyes open (rehearsal condition) or closed (eye‐closure condition). We found no differences between conditions in discrimination accuracy or response criterion. Potential explanations and practical implications are discussed. Copyright © 2015 John Wiley & Sons, Ltd.