Treatment, subtype, and word type effects in dyslexic children''s response to remediation

Children diagnosed as accuracy-disabled or rate-disabled readers (Lovett, 1984a, 1986, 1987) were randomly assigned to one of three treatment conditions providing training in word recognition and decoding skills (DS), oral and written language (OWLS), or classroom survival skills (an alternative treatment control). The experimental treatment programs exerted a positive treatment effect on the word recognition performances of both groups, but treatment-specific changes in contextual reading and oral language skill were not observed. Pre- and post-treatment comparisons on an experimental word recognition task revealed a post-test advantage for DS-trained children of both subgroups. Accuracy-disabled readers demonstrated treatment-specific gains for both orthographically regular words (e.g., wade) and for exception words (e.g., broad), with their gains greater on exception words. Rate-disabled children demonstrated treatment-specific gains only for exception words, but exhibited these gains following both the DS and the OWLS treatments. Although both experimental treatment programs were associated with a positive outcome for the rate disabled subgroup, DS training was associated with relatively greater treatment gain. These data suggest that the critical variables underlying the effectiveness of the DS treatment include the specific lexical knowledge these disabled readers acquired, their greater reliance on an orthographic pattern procedure in word recognition, and/or the fact that newly acquired items were practiced to a point approximating automatization.     

Peak shift in honey bee olfactory learning

If animals are trained with two similar stimuli such that one is rewarding (S+) and one punishing (S?), then following training animals show a greatest preference not for the S+, but for a novel stimulus that is slightly more different from the S? than the S+ is. This peak shift phenomenon has been widely reported for vertebrates and has recently been demonstrated for bumblebees and honey bees. To explore the nature of peak shift in invertebrates further, here we examined the properties of peak shift in honey bees trained in a free-flight olfactory learning assay. Hexanal and heptanol were mixed in different ratios to create a continuum of odour stimuli. Bees were trained to artificial flowers such that one odour mixture was rewarded with 2 molar sucrose (S+), and one punished with distasteful quinine (S?). After training, bees were given a non-rewarded preference test with five different mixtures of hexanal and heptanol. Following training bees’ maximal preference was for an odour mixture slightly more distinct from the S? than the trained S+. This effect was not seen if bees were initially trained with two distinct odours, replicating the classic features of peak shift reported for vertebrates. We propose a conceptual model of how peak shift might occur in honey bees. We argue that peak shift does not require any higher level of processing than the known olfactory learning circuitry of the bee brain and suggest that peak shift is a very general feature of discrimination learning.     

Asian Variability in Performance Rating Modesty and Leniency Bias

The influence of human factors on team performance was investigated in "medical emergency driven groups" composed of medical professionals treating a sudden cardiac arrest in a high fidelity simulator setting. The group composition is unique, but realistic, in that it is not constant. Three phases are distinguished: In Phase 1, 3 nurses are present; in Phase 2, a resident joins; and in Phase 3 a senior doctor joins. It was hypothesized that directive leadership behavior would enhance group performance. This was supported with regard to the directive leadership behavior of the nurse first on bedside in Phase 1, and for directive leadership of the resident in Phase 2—but only with regard to behavior occurring in the first 30 sec after entering the group, which reflects the need for quick action in this time-sensitive task. For Phase 3, we expected not only directive leadership but also indirect guidance by "structuring inquiry" of the senior doctor to enhance performance. This was confirmed for structuring inquiry. Results indicate that to enhance group performance training should go beyond "technical" training that concentrates on medical necessities. Rather, it should include aspects of group coordination, emphasizing that coordinating behavior should be adapted (a) to the situation and (b) to professional role requirements.     

Examining Specific Versus General Measures of Achievement Goals

The current research compared specific versus general measures of a 2 × 2 model of achievement goals. We found that specific achievement goals were better predictors of specific measures of interest in learning and perceived value of learning, whereas specific and general measures of achievement goals did not differ as predictors of general interest in learning, general perceived value of learning, or general and specific measures of performance. Furthermore, mastery achievement goals may be affected more across different measurement contexts than performance achievement goals.     

Individual Differences in Instructor Attitudes Underlying Maltreatment and Effective Mentoring in Basic Military Training

U.S. Air Force noncommissioned officers assigned to basic military training instructor (MTI) duty completed measures of attitudes previously linked to sexual harassment and sexual assault in the research literature: (a) attitudes of antipathy toward women (hostile sexism, Glick &; Fiske, 1996 Glick, P., &; Fiske, S. T. (1996). The ambivalent sexism inventory: Differentiating hostile and benevolent sexism. Journal of Personality and Social Psychology, 70, 491–512. 10.1037/0022-3514.70.3.491[Crossref], [Web of Science ®] , [Google Scholar]), and (b) attitudes favoring authoritarian use of power. Concurrent validation against trainee evaluations of MTIs on broader criteria showed that proauthoritarian attitudes were negatively associated with ratings of MTI effectiveness in mentoring and leadership; additionally, MTIs with stronger attitudes of hostile sexism were more likely reported as engaging in maltreatment of female trainees. These initial results contribute to ongoing understanding of individual differences as relevant to improve screening for a position of authority over the lowest ranking, and potentially most vulnerable military members. Directions for future research and implications for personnel selection and broader cultural changes are discussed.     

The role of illustrations in children’s inferential comprehension

Illustrations are a salient source of information in children’s books, yet their effect on children’s reading comprehension has been studied only through literal factual recall. The purpose of the current study was to determine the effect of illustrations on bridging inferences, an important aspect of meaning making in comprehension models. Identical short stories were presented under different illustration conditions with pictures that represented different parts of the story. Participants were 73 7- to 11-year-olds. Illustrations both facilitated and interfered with inferencing depending on the type of information depicted; however, this effect was reduced as grade increased. Additional findings were that the overall ability to make inferences increased with age and working memory was a significant predictor of this skill. Results are discussed in relation to cognitive and developmental models of comprehension.     

Polyaminergic agents modulate contextual fear extinction in rats

Polyamines, such as spermidine and spermine, have been reported to improve memory retention through the activation of N-methyl-d-aspartate receptors (NMDAr). However whether polyamine agonists and antagonists alter extinction remains unclear. In the current study, we investigated whether spermidine and polyamine antagonists that selectively block the NR2B subunit at the NMDAr alter the extinction of contextual conditioned fear in male Wistar rats. The bilateral intra-hippocampal administration of exogenous spermidine (2 nmol/site) immediately after, but not 6 h after extinction training, facilitated the extinction of fear conditioning. The injection of the NMDAr antagonists arcaine (0.2 nmol/site), ifenprodil (20 nmol/site) and traxoprodil (0.2 nmol/site), disrupted fear extinction and, at doses that had no effect per se, reversed the facilitatory effect of spermidine on fear extinction. These results suggest that exogenous and endogenous polyamines facilitate the extinction of contextual conditioned fear through activation of NR2B subunit-containing NMDAr in the hippocampus. Since extinction-based exposure therapy is widely used as treatment for a number of anxiety-related disorders, including phobias and post-traumatic stress, the currently reported facilitation of extinction by polyaminergic agents suggest these compounds as putative candidates for drug development.     

A Test of Multiple Achievement Goal Benefits in Physical Education Activities

The independent and combined effects of achievement goals for physical education activities were investigated. Both dispositional goal orientations as well as perceived motivational goal climate were assessed, and the paper evaluated four different hypotheses for multiple goal benefits (additive, interactive, specialized, and selective hypotheses). It was hypothesized that students may benefit most from endorsing both task and ego orientations in their fitness activities, especially depending on their perceptions of the motivational climate. However, benefits of pursuing multiple goal orientations were not found. Instead, students reported putting forth more effort, enjoying their fitness activities more, feeling more competent in the activity, and persisting after the semester when they endorsed a task orientation or perceived the motivational climate to be task oriented.     

Lasting Effects of Alcohol on the Reduction of Anxiety in Rats

A factor analysis was performed combining HSPQ forms A and B scores from a group of high school males (N = 1504) and a group of high school females (N + 1255). Eight factors were extracted and rotated from each of the two groups. It was found that the resulting factor patterns were both clearer (had better simple structure) and more closely matched the second order factor structure found among adults than previous HSPQ structures. These results supported the contention that (a) there are comparable second order personality factors between adults and high school students, and (b) since the factor pattern was similar to patterns found previously, the primary factors tend to be stable.     

Effects of manifest ethnic identification on employment discrimination

Evidence from recent laboratory experiments suggests that ethnic identification can lead to negative evaluations of ethnic minorities (Kaiser & Pratt-Hyatt, 2009). The current research considers the generalizability of these findings to face-to-face interactions in contexts wherein impression management concerns are salient: the workplace hiring process. In a field experiment, Black, Hispanic, and Irish individuals applied for retail jobs with or without visible display of their ethnic identification. Analysis of indicators of formal (e.g., application offering, interview scheduling) and interpersonal discrimination (e.g., interaction length, nonverbal negativity) suggest store personnel interacting with other-race applicants exhibited greater positivity and longer interactions when applicants displayed ethnic identification than when they did not. The findings suggest that psychologists need to understand not only attitudes or intentions expressed in the lab, but also the behavioral consequences of manifest group identity as they unfold in natural environments.