Self-report of ADHD symptoms in university students: cross-gender and cross-national prevalence

Little research has examined the structure and prevalence of attention-deficit/hyperactivity disorder (ADHD) symptoms in university students, including whether symptom structure conforms to the bidimensional (i.e., inattention and hyperactivity-impulsivity) conceptualization of the Diagnostic and Statistical Manual of Mental Disorders (DSMV-IV; American Psychiatric Association, 1994) and whether self-reported symptoms vary across gender and country. A sample of 1,209 university students from three countries (Italy, New Zealand, and the United States) completed a 24-item self-report measure (the Young Adult Rating Scale) tapping ADHD symptomatology. Factor analyses within the U.S. and New Zealand samples supported a bidimensional symptom structure, whereas weaker support for this conceptualization was provided by the Italian sample. Participants did not vary significantly by gender in symptom report; however, Italian students reported significantly more inattention and hyperactivity-impulsivity symptoms than students from the United States, and students from New Zealand reported more inattention symptoms than students from the United States. The prevalence of self-reported ADHD symptoms beyond DSM-IV thresholds for diagnosis ranged from 0% (Italian women) to 8.1% (New Zealand men). The implications of these results for the use of DSM-IV criteria in identifying university students with ADHD are discussed.     

The relationship of teacher-rated social skills deficits and ADHD characteristics among kindergarten-age children

Research findings regarding the relationship of social skills deficits and behavioral characteristics associated with attention-deficit hyperactivity disorder (ADHD) among kindergarten-age children are presented. The Preschool and Kindergarten Behavior Scales (PKBS) were utilized to identify the social skills attributes of young children with significant ADHD characteristics. An ADHD target group (N = 95) was constructed by selecting participants from a large nationwide sample who were rated by their teachers as being in the highest 5% on the PKBS Attention Problems/Overactive subscale. A matched non-ADHD comparison group (by gender and age) of 95 children was developed through a randomized block procedure using the same nationwide sample. The ADHD group was rated as having significantly poorer social skills than the comparison group, and could be classified with a very high degree of accuracy based on discriminant function analysis of their social skills scores. Although exhibiting comparative deficits in all social skill areas, the ADHD participants were especially lacking in social cooperation skills: the ability to follow rules, structure, and important social expectations of both children and adults. Children who were rated high in ADHD characteristics were between five and six times more likely than the comparison children to be rated as having significant deficits in social skills. Implications of these findings for assessment and treatment of young children are discussed. © 1998 John Wiley & Sons, Inc.     

The role of attention processes in near transfer of cognitive skills

We tested hypotheses about the respective roles of working memory, perceptual speed, knowledge, and attention disengagement processes in skill transfer errors that resemble einstellung effects or strong-but-wrong slips. Correlational evidence was consistent with the hypothesis that these errors are primarily due to the inability of learners to disengage attention from expected or familiar operations. The data also supported the notion that error proneness during near transfer generalizes across different skills. Contrary to expectations, working memory capacity had little or no relationship to either transfer errors or attention disengagement ability. Results are discussed with respect to skill training and individual differences in skill performance ability.     

The Turner syndrome: cognitive deficits, affective discrimination, and behavior problems

Individuals with sex chromosomal anomalies are known to be at increased risk for learning problems and in some cases social or behavioral problems. Girls with an absent or structurally abnormal second sex chromosome (the Turner syndrome) have been found to have cognitive problem solving deficits and immature, inadequate social relationships. The present study attempted to link cognitive and social problems by assessing the girls' ability to process affective cues. 17 girls with karyotypes consistent with a diagnosis of Turner syndrome were compared to a group of 16 short-stature girls of comparable age, verbal intelligence scores, height, and family socioeconomic status on the Affective Discrimination Task, which required interpretation of affective intention from facial expression. The results revealed that the Turner syndrome girls were less accurate at inferring facial affect than the short-stature controls. Analyses revealed that the Turner syndrome girls performed more poorly on spatial, attentional, and short-term memory cognitive tasks and had more psychosocial problems than the short-stature controls. Ability to discriminate facial affect may be another area of cognitive weakness for girls with the Turner syndrome and may underlie the psychosocial problems found in this sample.     

The diagnosis of attention deficit hyperactivity disorder (ADHD) in community mental health centers: Where and when

The high degree of coexistence of attentional disorders, such as Attention Deficit Hyperactivity Disorder (ADHD), with a number of other disorders continues to pose diagnostic problems and to highlight a continuing need to differentiate better between overlapping diagnoses. The purpose of this study was to assess the extent to which this type of diagnostic confusion continues to exist in referrals for assessment of ADHD to community mental health centers. Using referrals to a specialized ADHD Clinic of our center, 92 children with a previous diagnosis of ADHD were provided comprehensive evaluations, addressing cognitive, intellectual, personality, academic, social, behavioral, developmental, and medical concerns. After comprehensive evaluation and careful review of the results, only 22% of our sample were given a primary diagnosis of ADHD and only 37% a secondary diagnosis of ADHD. Substantial numbers of children were diagnosed instead with primary anxiety and mood disorders. Reasons for this discrepancy are discussed.     

The role of cognitive factors in chemistry achievement

Evidence from the research literature suggests that a variety of cognitive factors is responsible for chemistry achievement. This investigation examined the role of four cognitive factors, namely, formal reasoning ability, prior knowledge, field dependence/ independence, and memory capacity on achievement in chemistry as measured by tests of laboratory application, chemical calculations and content knowledge. The sample comprised grade 11 students from eleven high schools who were following the same chemistry syllabus. The results indicated that prior knowledge and formal reasoning ability were each statistically significantly related to variation in chemistry achievement. Field dependence/independence and memory capacity played no significant role in chemistry achievement.     

Discrimination blocking: Acquisition versus performance deficits in human contingency learning

We compared acquisition and performance accounts of human contingency learning. After solving a discrimination in Phase 1, in which Cue A predicted the occurrence of the outcome and Cue B predicted its nonoccurrence (A+/B−), a new discrimination (X+/Y−) was superimposed in Phase 2 (AX+/BY−). The participants were finally trained in Phase 3 with the added discrimination, which either maintained the same contingencies as those in Phase 2 (X+/Y−; Experiment 1) or reversed the contingencies (X−/Y+; Experiment 2). According to competitive-learning theories (e.g., Rescorla & Wagner, 1972), there should be no learning of the added discrimination in Phase 2, so that no advantage or disadvantage for this discrimination should be observed in Phase 3. In contrast, performance theories, such as the comparator hypothesis (Miller & Matzel, 1988), contend that learning of the added discrimination in Phase 2 should proceed normally; so, in Phase 3, an advantage for the added discrimination should be observed in Experiment 1, but a disadvantage should be observed in Experiment 2. Our participants learned about the added discrimination and generally showed the effects predicted by the comparator hypothesis.     

ADHD in Schools: A survey of prevalence and coherence' across a local UK population

Attention-deficit hyperactivity disorder (ADHD) is one of the most contentious issues in education at present. However there is little evidence of its incidence rate or distribution in the UK. The present study aims to determine baseline measures regarding prevalence and distribution rates across a large shire county in the UK. Implications of the findings in relation to policy decisions and some of the assumptions made for this condition are discussed. The need for reliable assessment protocols in order to elicit an accurate diagnosis for this condition is emphasised.     

Knowledge of attention deficit hyperactivity disorder (ADHD) and attitudes toward teaching children with ADHD: THE role of teaching experience

Knowledge of attention deficit hyperactivity disorder (ADHD) and attitudes toward teaching children with ADHD are compared across stages of Australian teachers' careers. Relative to pre‐service teachers with (n = 218) and without (n = 109) teaching experience, in‐service teachers (n = 127) show more overall knowledge of ADHD, more knowledge of characteristics and treatments for ADHD, and higher perceived knowledge. In‐service teachers reported less favorable emotion about teaching children with ADHD than did pre‐service teachers without experience and more favorable behaviors than pre‐service teachers with experience. Groups did not differ in knowledge of causes of ADHD, overall attitudes, stereotypical beliefs, and beliefs about teaching children with ADHD. Identification of knowledge gaps and ambivalent attitudes will guide pre‐service and in‐service training courses. © 2012 Wiley Periodicals, Inc.     

视觉注意选择性的认知心理学理论研究进展分析

当前随着社会的快速发展,学习理论性的研究对于促进社会各项事务的完善具有重要意义。本文对视觉注意力选择性的认知心理学进行相关研究探析,分析判断注意选择性的重要作用以及在此基础上延伸出的相关心理学问题,这类问题也是对心理学理论的有效实践,旨在提升心理学理论研究效果的提升。     

Sluggish cognitive tempo and impairment: The role of lifestyle factors

The purpose of this study was to assess whether sluggish cognitive tempo (SCT) behaviors were associated with a unique impairment profile for college students after accounting for lifestyle (sleep, substance use, health) and mental health factors (attention-deficit/hyperactivity disorder [ADHD], anxiety, depression). A general sample of 910 undergraduate students completed several measures via online survey. Most participants were female (64.9%) and were Caucasian (60.7%), with an average age of 19.41 years. Students who endorsed elevated SCT behaviors reported significantly more impairment compared to students who reported low levels of SCT behaviors. However, regression analyses suggested that SCT behaviors do not account for significant amounts of unique impairment after controlling for related mental health (ADHD, anxiety, depression) and lifestyle variables (sleep, health, substance use). The lack of impairment associated uniquely with SCT behaviors suggests that SCT may serve as a construct underlying many variables, rather than standing independently as a distinct disorder.     

The role of noncognitive factors in the cognitive performance of older adults

This review examines the available evidence on the impact of noncognitive factors on the cognitive performance of young and older adults. After considering studies organized around a framework of cohort-associated modifiers, motive states, task and measurement factors, and environmental effects, the observation is offered that noncognitive factors and age-related deficits in cognitive processes are related and account, in part, for age differences in cognitive performance. It is argued that the time may be ripe for educational psychologists to renew and to expand their contributions to the adult development literature. Several areas of research pertinent to educational psychologists are identified.     

Training versus instruction in the acquisition of cognitive learning strategies

As various cognitive learning strategies have been identified and shown to be useful, the question of how best to teach an individual to use these techniques becomes important. Two studies compared simple instruction to more extended training. In Experiment 1 training was found superior to simple instructions with the method of loci for serial recall learning. Training in generalizable strategies involving imagery, verbal elaboration, and grouping was compared to simple instruction for a reading comprehension task in Experiment 2. Training was found to be more effective than instruction with a short-answer test over easy reading material, but not with difficult readings or multiple-choice tests.     

Comparison of deficits in cognitive and motor skills among children with dyslexia

There is a growing body of evidence that children with dyslexia have problems not just in reading but in a range of skills including several unrelated to reading. In an attempt to compare the severity and incidence of deficits across these varied domains, children with dyslexia (mean ages 8, 12, and 16 years), and control groups of normally achieving children matched for IQ and for age or reading age, were tested on a range of primitive (basic) skills. The children with dyslexia performed significantly worse than the same-age controls on most tasks, and significantly worse even than the reading-age controls on phoneme segmentation, picture naming speed, word tachistoscopic word recognition, speeded bead threading and some balance tasks. The overall performance of the children with dyslexia is interpreted as showing less complete automatization than normal.     

Assessing ADHD Symptoms in Preschool Children: Use of the ADHD Symptoms Rating Scale

Attention-Deficit Hyperactivity Disorder (ADHD) is a common childhood disorder that is typically diagnosed during the school years, although features of the disorder can be identified in early childhood. As more children enter into preschool programs, there are increasing opportunities for professionals to identify and treat ADHD prior to school entry. This may increase the likelihood that children will have successful academic and social experiences. Unfortunately, diagnosing ADHD in preschoolers is difficult, in part because few assessment instruments are designed and validated for this age group. The purpose of this study was to examine the psychometric and normative properties of the ADHD-Symptoms Rating Scale (ADHD-SRS) in preschool children. Results shed light on normative levels of ADHD behaviors in preschool children and suggest that preschoolers may present with a somewhat different symptom pattern than school-age children. Further, findings reveal that parents are more likely to endorse ADHD symptoms in their children than are teachers. Given this disparity, the current data emphasize the need for cross-informant assessment in the preschool population.