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The unity and diversity of executive functions and their contributions to complex “Frontal Lobe” tasks: a latent variable analysis
- COGNIT PSYCHOL
, 2000
"... This individual differences study examined the separability of three often postulated executive functions—mental set shifting ("Shifting"), information updating and monitoring ("Updating"), and inhibition of prepotent responses ("Inhibition")—and their roles in complex ..."
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Cited by 696 (9 self)
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This individual differences study examined the separability of three often postulated executive functions—mental set shifting ("Shifting"), information updating and monitoring ("Updating"), and inhibition of prepotent responses ("Inhibition")—and their roles in complex "frontal lobe" or "executive" tasks. One hundred thirty-seven college students performed a set of relatively simple experimental tasks that are considered to predominantly tap each target executive function as well as a set of frequently used executive tasks: the Wisconsin Card Sorting Test (WCST), Tower of Hanoi (TOH), random number generation (RNG), operation span, and dual tasking. Confirmatory factor analysis indicated that the three target executive functions are moderately correlated with one another, but are clearly separable. Moreover, structural equation modeling suggested that the three functions
Best practices in exploratory factor analysis: Four recommendations for getting the most from your analysis
- Practical Assessment, Research & Evaluation
, 2005
"... A peer-reviewed electronic journal. Copyright is retained by the first or sole author, who grants right of first publication to the Practical Assessment, Research & Evaluation. Permission is granted to distribute this article for nonprofit, educational purposes if it is copied in its entirety an ..."
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Cited by 431 (3 self)
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A peer-reviewed electronic journal. Copyright is retained by the first or sole author, who grants right of first publication to the Practical Assessment, Research & Evaluation. Permission is granted to distribute this article for nonprofit, educational purposes if it is copied in its entirety and the journal is credited.
Exploratory and confirmatory factor analysis: Understanding concepts and applications
, 2004
"... provides a concise (162 pages of text) and basic overview of two disciplines of assessing structure: exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). As Thompson explains, the book was written ‘‘to strike a happy medium between accuracy and completeness versus over-whelming ..."
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Cited by 239 (0 self)
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provides a concise (162 pages of text) and basic overview of two disciplines of assessing structure: exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). As Thompson explains, the book was written ‘‘to strike a happy medium between accuracy and completeness versus over-whelming technical complexity’ ’ (p. ix). Example data sets are used throughout the book to dem-onstrate important concepts. It must be noted, however, that this is not a cookbook that presents analysis steps along with software syntax and output. Instead, the focus is on the explanation of concepts and the logic of EFA and CFA. As the title implies, there is coverage of both EFA and CFA, but the majority of the book is ded-icated to exploratory procedures. In addition, much of the discussion and demonstration of EFA focuses on the use of principal components (PC) analysis, which could be disappointing for those wanting a more detailed discussion of principal axis factor analysis (PAF). The book consists of 12 chapters. Chapter 1 provides a very brief introduction to both EFA and CFA. The purposes of factor-analytic methods are succinctly presented, and the importance of theory when employing CFA is emphasized. Chapter 2 introduces the basics of matrix algebra, major EFA concepts (e.g., pattern coeffi-
Mental health provider attitudes toward adoption of evidence-based practice: The Evidence-Based Practice Attitude
- Scale (EBPAS). Mental Health Services Research
, 2004
"... Mental health provider attitudes toward organizational change have not been well studied. Dissemination and implementation of evidence-based practices (EBPs) into real-world set-tings represent organizational change that may be limited or facilitated by provider attitudes toward adoption of new trea ..."
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Cited by 93 (6 self)
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Mental health provider attitudes toward organizational change have not been well studied. Dissemination and implementation of evidence-based practices (EBPs) into real-world set-tings represent organizational change that may be limited or facilitated by provider attitudes toward adoption of new treatments, interventions, and practices. A brief measure of mental health provider attitudes toward adoption of EBPs was developed and attitudes were exam-ined in relation to a set of provider individual difference and organizational characteristics. Methods: Participants were 322 public sector clinical service workers from 51 programs pro-viding mental health services to children and adolescents and their families. Results: Four dimensions of attitudes toward adoption of EBPs were identified: (1) intuitive Appeal of EBP, (2) likelihood of adopting EBP given Requirements to do so, (3) Openness to new practices, and (4) perceived Divergence of usual practice with research-based/academically developed interventions. Provider attitudes varied by education level, level of experience, and organi-zational context. Conclusions: Attitudes toward adoption of EBPs can be reliably measured and vary in relation to individual differences and service context. EBP implementation plans should include consideration of mental health service provider attitudes as a potential aid to improve the process and effectiveness of dissemination efforts. KEY WORDS: evidence-based practice; attitudes; dissemination; mental health; child; adolescent; organization; services.
The Work Design Questionnaire (WDQ): Developing and validating a comprehensive measure for assessing job design and the nature of work
- Journal of Applied Psychology
, 2006
"... Although there are thousands of studies investigating work and job design, existing measures are incomplete. In an effort to address this gap, the authors reviewed the work design literature, identified and integrated previously described work characteristics, and developed a measure to tap those wo ..."
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Cited by 75 (6 self)
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Although there are thousands of studies investigating work and job design, existing measures are incomplete. In an effort to address this gap, the authors reviewed the work design literature, identified and integrated previously described work characteristics, and developed a measure to tap those work characteristics. The resultant Work Design Questionnaire (WDQ) was validated with 540 incumbents holding 243 distinct jobs and demonstrated excellent reliability and convergent and discriminant validity. In addition, the authors found that, although both task and knowledge work characteristics predicted satisfaction, only knowledge characteristics were related to training and compensation requirements. Finally, the results showed that social support incrementally predicted satisfaction beyond motivational work characteristics but was not related to increased training and compensation requirements. These results provide new insight into how to avoid the trade-offs commonly observed in work design research. Taken together, the WDQ appears to hold promise as a general measure of work characteristics that can be used by scholars and practitioners to conduct basic research on the nature of work or to design and redesign jobs in organizations.
DEFINING AND DEVELOPING MEASURES OF LEAN PRODUCTION
"... DEFINING AND DEVELOPING MEASURES OF LEAN PRODUCTION Our research addresses the confusion and inconsistency associated with “lean production. ” We attempt to clarify the semantic confusion surrounding lean production by conducting an extensive literature review using a historical evolutionary perspec ..."
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Cited by 67 (1 self)
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DEFINING AND DEVELOPING MEASURES OF LEAN PRODUCTION Our research addresses the confusion and inconsistency associated with “lean production. ” We attempt to clarify the semantic confusion surrounding lean production by conducting an extensive literature review using a historical evolutionary perspective in tracing its main components. We identify a key set of measurement items by charting the linkages between measurement instruments that have been used to measure its various components from the past literature, and using a rigorous, two-stage empirical method and data from a large set of manufacturing firms, we narrow the list of items selected to represent lean production to 48 items, empirically identifying ten underlying components. In doing so, we map the operational space corresponding to conceptual space surrounding lean production. Configuration theory provides the theoretical underpinnings and helps to explain the synergistic relationships among its underlying components.
www.hicn.org The Consequences of Child Soldiering
, 2007
"... In many cases, up to a third of male youth (including children) are drawn into armed groups, making soldiering one of the world’s most common occupations for the young. Little is known, however, about the impacts of military service on human capital and labor market outcomes due to an absence of dat ..."
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Cited by 58 (6 self)
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In many cases, up to a third of male youth (including children) are drawn into armed groups, making soldiering one of the world’s most common occupations for the young. Little is known, however, about the impacts of military service on human capital and labor market outcomes due to an absence of data as well as sample selection: recruits are usually self-selected and screened, and may also selectively survive. We assess the impacts of participation in civil war using an original survey from Uganda, where a rebel group’s recruitment method provides arguably exogenous variation in conscription. Contrary to the prevailing view that participation in war leads to broad-based ‘traumatization’, we find that military service primarily hinders long-term economic performance because it is a poor substitute for civilian education and work experience. The most significant impact is upon a recruit’s skills and productivity: schooling falls by nearly a year, skilled employment halves, and earnings drop by a third. These impacts are highly robust to relaxation of the assumption of exogenous conscription. Effects are greatest for child soldiers, who lose the most education. There is no observed impact on social capital, and adverse impacts
Grouplevel self-definition and self-investment: A hierarchical (multicomponent) model of in-group identification
- Journal of Personality and Social Psychology
, 2008
"... Recent research shows individuals ’ identification with in-groups to be psychologically important and socially consequential. However, there is little agreement about how identification should be conceptu-alized or measured. On the basis of previous work, the authors identified 5 specific components ..."
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Cited by 40 (0 self)
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Recent research shows individuals ’ identification with in-groups to be psychologically important and socially consequential. However, there is little agreement about how identification should be conceptu-alized or measured. On the basis of previous work, the authors identified 5 specific components of in-group identification and offered a hierarchical 2-dimensional model within which these components are organized. Studies 1 and 2 used confirmatory factor analysis to validate the proposed model of self-definition (individual self-stereotyping, in-group homogeneity) and self-investment (solidarity, sat-isfaction, and centrality) dimensions, across 3 different group identities. Studies 3 and 4 demonstrated the construct validity of the 5 components by examining their (concurrent) correlations with established measures of in-group identification. Studies 5–7 demonstrated the predictive and discriminant validity of the 5 components by examining their (prospective) prediction of individuals ’ orientation to, and emotions about, real intergroup relations. Together, these studies illustrate the conceptual and empirical value of a hierarchical multicomponent model of in-group identification.