Background: Adults with intellectual disabilities should participate in the diagnostics of their mental health. The Glasgow Depression Scale for people with a Learning Disability (GDS-LD) and its Carer Supplement (GDS-CS) were translated into German and tested. Methods: Internal consistency, criterion validity and inter-test reliability were…

Perceptual judgments result from a dynamic process, but little is known about the dynamics of number-line estimation. A recent study proposed a computational model that combined a model of trial-to-trial changes with a model for the internal scaling of discrete numbers. Here, we tested a surprising prediction of the model--a situation in which…

Perceptual judgments result from a dynamic process, but little is known about the dynamics of number-line estimation. A recent study proposed a computational model that combined a model of trial-to-trial changes with a model for the internal scaling of discrete numbers. Here, we tested a surprising prediction of the model--a situation in which…

The purpose of this study was to examine the factor structure of vocabulary. We believe that not only is vocabulary multidimensional, but depth of vocabulary knowledge should also be assessed with multiple measures since it too, is composed of multiple aspects. Furthermore, to explore the predictive validity of the different aspects of vocabulary…

Background: Mental capacity assessments currently rely on subjective opinion. Researchers have yet to explore the association between key cognitive functions of rational decision making and mental capacity classifications for people with intellectual disabilities. Method: Sixty-three adults completed the Montreal Cognitive Assessment, which…

Quality of life (QoL) is a key outcome used to monitor service planning and delivery for individuals with Intellectual and Developmental Disabilities (IDD). Unfortunately, many current instruments used to measure QoL have psychometric and content limitations and none are suitable for use with individuals with the lowest levels of functioning and…

The Session Rating Scale 3.0 (SRS 3.0) is an ultra-brief measure of the therapeutic alliance, frequently used to provide feedback to the clinician during the therapeutic process (Prescott et al. [2017]. "Feedback-informed treatment in clinical practice. Reaching for excellence." American Psychological Association (APA).…

While various screening instruments for autism spectrum disorders are widely used in diagnostic assessments, their psychometric properties have not been simultaneously evaluated in the outpatient setting where these instruments are used most. In this study, we tested the Ritvo Autism Asperger Diagnostic Scale-Revised and two short versions of the…

Many Flynn effect (FE) studies compare scores across different editions of Wechsler's IQ tests. When construct changes are introduced by the test developers in the new edition, however, the presumed generational effects are difficult to untangle from changes due to test content. To remove this confound, we use the same edition of Wechsler…

The authors discuss the Adult Playfulness Trait Scale (APTS), a measurement that they developed along with a conceptualization of playfulness based on a synthesis of personality research and play literature. They assert the research they conducted, which examined the nomological network of playfulness and involved relevant constructs of…

Lower English literacy achievement of deaf students is often hypothesized to be an impediment for successful adult life experiences. Yet, literacy practices that individuals engage in throughout their daily lives are much more complex than what school-based measures of English can capture and particularly so for deaf individuals. A national…

The Raven's Standard Progressive Matrices (RSPM) is a 60-item test for measuring abstract reasoning, considered a nonverbal estimate of fluid intelligence, and often included in clinical assessment batteries and research on patients with cognitive deficits. The goal was to develop and apply a predictive model approach to reduce the number of items…

In recent years, emotional intelligence has appeared as a predictor of adults' mental health, but little research has examined its involvement in adolescents' psychological adjustment. In this paper, we analyzed the predictive validity of perceived emotional intelligence (attention to feelings, emotional clarity, and emotional repair) over…

Cognitive ability tests are widely used in organizations around the world because they have high predictive validity in selection contexts. Although these tests typically measure several subdomains, testing is usually carried out for a single subdomain at a time. This can be ineffective when the subdomains assessed are highly correlated. This…

Research and practice on knowledge management (KM) have shown that information technology alone cannot guarantee that employees will volunteer and share knowledge. While previous studies have linked motivational factors to knowledge sharing (KS), we took a further step to thoroughly examine this theoretically and empirically. We developed a…