Search results

This is the first study to evaluate ADHD-hyperactive/impulsive subtype in a large clinical sample of adults with ADHD. The Quality of Life, Effectiveness, Safety and Tolerability (QuEST) study included 725 adults who received clinician diagnoses of any ADHD sub-type. Cross-sectional baseline data from 691 patients diagnosed with the hyperactive/impulsive (HI), inattentive (IA) and combined sub-types were used to compare the groups on the clinician administered ADHD-RS, clinical features and health-related quality of life. A consistent pattern of differences was found between the ADHD-I and combined subtypes, with the combined subtype being more likely to be diagnosed in childhood, more severe symptom severity and lower HRQL. Twenty-three patients out of the total sample of 691 patients (3%) received a clinician diagnosis of ADHD -hyperactive/impulsive subtype. Review of the ratings on the ADHD-RS-IV demonstrated, however, that this group had ratings of inattention comparable to the inattentive group. There were no significant differences found between the ADHD-HI and the other subtypes in symptom severity, functioning or quality of life. The hyperactive/impulsive subtype group identified by clinicians in this study was not significantly different from the rest of the sample. By contrast, significant differences were found between the inattentive and combined types. This suggests that in adults, hyperactivity declines and inattention remains significant, making the hyperactive/impulsive sub-type as defined by childhood criteria a very rare condition and raising questions as to the validity of the HI subtype in adults.

The purpose of this paper is to examine sexual offender treatment responses as a function of psychopathy subtype.

Measures of sexual violence risk, treatment change and outcome variables were coded retrospectively on a sample of 86 high Psychopathy Checklist-Revised (PCL-R) scoring sexual offenders. Psychopathy subtypes were identified through cluster analysis of PCL-R facet scores.

Two subtypes were identified labeled classic and aggressive. They were comparable in their level of risk and need and did not differ in rates of treatment completion or change. The aggressive subtype had higher rates of violent and general recidivism and higher frequencies of major mental disorder and cognitive disability. Results of Cox regression survival analysis demonstrated that treatment-related changes in risk were associated with reductions in violent recidivism for the aggressive, but not classic, psychopathy variant.

Psychopathy is a heterogeneous syndrome. Moreover, psychopathic offenders can demonstrate risk relevant treatment changes. PCL-R facet profiles have important responsivity implications. However, not all psychopathic offenders fare poorly in treatment.

This is one of very few studies to examine treatment response and links to outcome among psychopathic offenders, particularly as this relates to subtype.

Research on workaholism distinguishes between enthusiastic and non-enthusiastic workaholics, a typology used in many studies. Yet, the methodical foundation on which the derivation of the types is based lacks robust statistical evidence. The purpose of this paper is twofold: first, to replicate the often-cited typology of enthusiastic and non-enthusiastic workaholics (and non-workaholic subtypes), based on model-based clustering as a robust statistical technique; and second, to validate the class solution based on affective, cognitive and behavioral measures.

The study followed a cross-sectional design, targeting a sample of people from various fields of industries. An online questionnaire was distributed; workaholism was assessed with McMillan et al.’s (2002) Work-BAT-R scales. A total of 537 respondents’ data were analyzed.

Latent profile analysis extracted four classes, namely, enthusiastic and non-enthusiastic workaholics and relaxed and uninvolved non-workaholics. As expected, workers characterized by high enjoyment (enthusiasts and relaxed) showed higher job satisfaction and occupational self-efficacy than workers with low enjoyment (non-enthusiasts and uninvolved). Relaxed workers reported higher life satisfaction than all other classes.

The robust methodology applied establishes a good starting point for future studies investigating workers subtypes: the replication suggests that the workaholic subtypes might be core profiles that occur in different populations with regularity. As a next step, the replication of the typology based on alternative operationalizations of workaholism is proposed for future studies.

The purpose of this paper is to explore well-being and health-related outcomes among all the four basic subtypes of heavy work investment (HWI), as well as a fifth distinct category of full-time workers (i.e. those who work from 35 to 43 weekly hours).

The 510 respondents chosen to be included in the Internet survey were mostly heavy work investors. Based on two dimensions of causal attributions (causal locus and controllability), an elimination mode was used to classify heavy work investors into four main subtypes. Those who reported high financial needs were classified as needy. From the remaining heavy work investors, those who reported high organizational demands were classified as organization-directed. Afterward, those who reported high drive to work were classified as workaholics. Finally, those who reported high passion for work were classified as work-devoted.

Among the five categories of classified respondents, the work-devoted and the needy emerged as the most distinct categories. The work-devoted had the best outcomes (stronger positive feelings, better current health condition, better body mass index (BMI) and adequate hours of sleep a night), whereas the needy had the worst outcomes (a higher level of stress, bodily pain, aches that interfere with regular activities and weariness throughout the day).

This study addressed both long hours and high effort invested in work, and both dispositional and situational heavy work investors. A possible implication of this study is that when job applicants have similar human capital profiles, organizations should consider recruitment of work-devoted individuals for demanding jobs.

The stereotypical image of the profession is poor with accountants appearing in the popular media as either the object of satire or the criminally inclined expert who deceives the public for self-gain. Extant research on the portrayal of the stereotypic accountant is limited in two ways: (1) existing research assumes a unitary concept by inferring a dominant image when the accountant stereotype is multifaceted; and (2) it is unclear from existing research whether the dominant image results from perceived character traits or the duties undertaken by accountants. This paper relies on qualitative methods of data analysis to unpack the elements that underpin stereotypical images in accounting to develop a framework of external perceptions that distinguishes one image from another. The framework is constructed on two broad criteria that comprise accountants (personality traits and physical characteristics) and accounting (task functionality). The interplay of these two criteria creates four subtypes representing positive (Scorekeeper and Guardian) and negative (Beancounter and Entrepreneur) interpretations of the two basic categorizations: bookkeeper and business professional. Further analysis revealed four primary dimensions (Ethics and Sociable, Skill and Service) that underlie the construction of the subtypes. In general, the ‘Scorekeeper’ rates more highly than the ‘Beancounter’ on ‘Ethics and Sociable’ and the ‘Guardian’ rates more highly than the ‘Entrepreneur’ on ‘Ethics’. Accounting researchers and the profession could benefit from understanding how stereotypical perceptions are constructed and managed.

Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder that is difficult to diagnose accurately due to its heterogeneous clinical manifestations. Comprehensive models combining different big data approaches (e.g. neuroimaging, genetics, eye tracking, etc.) may offer the opportunity to characterize ASD from multiple distinct perspectives. This paper aims to provide an overview of a novel diagnostic approach for ASD classification and stratification based on these big data approaches.

Multiple types of data were collected and recorded for three consecutive years, including clinical assessment, neuroimaging, gene mutation and expression and response signal data. The authors propose to establish a classification model for predicting ASD clinical diagnostic status by integrating the various data types. Furthermore, the authors suggest a data-driven approach to stratify ASD into subtypes based on genetic and genomic data.

By utilizing complementary information from different types of ASD patient data, the proposed integration model has the potential to achieve better prediction performance than models focusing on only one data type. The use of unsupervised clustering for the gene-based data-driven stratification will enable identification of more homogeneous subtypes. The authors anticipate that such stratification will facilitate a more consistent and personalized ASD diagnostic tool.

This study aims to utilize a more comprehensive investigation of ASD-related data types than prior investigations, including proposing longitudinal data collection and a storage scheme covering diverse populations. Furthermore, this study offers two novel diagnostic models that focus on case-control status prediction and ASD subtype stratification, which have been under-explored in the prior literature.

In this chapter, we present the results of a study designed to investigate: (a) the family relations of children with attention-deficit hyperactivity disorder (ADHD), (b) the sources of stress parents in families of children with this disorder experience and (c) the possible modulating role that ADHD subtype and comorbid oppositional defiant disorder (ODD) have on parenting stress level. One hundred and sixty seven families, divided into two groups, an ADHD group (N=114) and a control group (N=53), participated in the study. Parents of both groups completed a Semi-Structured Interview that gathered information on socio-demographics, family structure and the presence of oppositional behaviour symptoms, as well as the Parenting Stress Index Questionnaire (Abidin, 1990) to evaluate parent stress. The results showed that the relations of children with ADHD with their parents and siblings were significantly more tense than those of children without this disorder with their families. Parenting stress was higher in parents with ADHD children than in parents of non-ADHD children in most scales relating to parent personal variables, with even more sharp differences in measures of parenting stress that are triggered by the child's behaviour. Finally, our results evidenced how the ADHD subtype and ODD comorbidity influence the level of stress in parents. The results of the study suggest that interventions focused only on the behaviour of ADHD children are not likely to improve the developmental course of the disorder in the long run.

This chapter reviews research on math disabilities (MD) from two different points of view: Italian and American. Our goal is to gain consensus on identifying the cognitive deficits that underlie problems associated with MD as well as to provide an overview of some of the instructional approaches to remediate these deficits. The review outlines similarities and differences in the research perspectives between the two countries. Although the results show some consensus on the identification of MD and the cognitive mechanisms associated with this deficit (e.g., working memory), some differences remain between the two research perspectives (e.g., incidence of MD).

Few studies assess how child abuse and neglect (CAN) affects adolescents’ mental health. Further, the majority of studies conducted to date discount the individual CAN items and report overall prevalence rates for different types of abuse and neglect. The purpose of this study was to examine the levels of and gender differences in CAN subtypes, lifetime prevalence of individual CAN items and the contribution of different CAN subtypes for explaining depression, anxiety and irritability.

The sample included Jamaican (n = 7,182, 60.8% female) and Ugandan (n = 11,518, 52.4% female) youths. The authors used a population-based cross-sectional study design. Youths completed an anonymous survey in school settings.

The authors found gender differences in the levels of CAN subtypes. Maltreatment behaviors of lesser severity were more commonly endorsed by the youths than those of greater severity. Neglect and emotional abuse were the strongest correlates of depression (e.g. neglect: ß = 0.23, among Jamaican youths; emotional abuse outside-the-home: ß = 0.23, among Ugandan girls), anxiety (e.g. neglect: ß = 0.17, among Ugandan girls; emotional abuse outside-the-home: ß = 0.27, among Ugandan girls) and irritability (e.g. emotional abuse in-the-home: ß = 0.17, among Jamaican boys; emotional abuse outside-the-home: ß = 0.17, among Ugandan girls) in most samples.

These findings will inform policymakers and professionals working with youths in Jamaica and Uganda, providing comprehensive contemporary insights beyond existing research in these regions.

During the last decade, a firm's ability to innovate has gained substantial attention in the literature devoted to innovation and strategic management. This study aims at discussing on what is the relationship of a firm's commitment to learn and its open-mindedness with its activity in introducing organizational innovations. The data collection was carried out in Russia. In order to make the research more specific, the organizational innovation is broken down into two subtypes, namely innovation in management practices and innovation in workplace organization.

The study is grounded on the data obtained by the surveying of 123 Russian top managers working in manufacturing firms. The structural equation modeling was approached in order to investigate the impact of a firm's commitment to learn and open-mindedness on its organizational innovation.

The results indicate that the commitment to learn and the open-mindedness have considerable impact on organizational innovation activity in a firm. The findings also provide evidence that both the investigated subtypes of organizational innovation are positively influenced by commitment to learn and open-mindedness, though the degree of that influence differs.

The literature traditionally focuses mostly on the technological type of innovation leaving the organizational innovation covered by scarce research. In this respect the study contributes to the theory of organizational innovation by elaborating its relations with organizational learning dimensions. Apart from the investigation on the research question at a general level, the study explores the specific context related to the manifestation of phenomenon in a transition economy of Russia.