Psychology Commons^™

The Application Of Bayesian Meta-Analytic Models In Cognitive Research On Neurodevelopmental Disorders, Nic Zapparrata

Dissertations, Theses, and Capstone Projects

Meta-analysis is the systematic review and quantitative synthesis of specific areas in literature and is an important quantitative tool for researchers interested in synthesizing a particular body of research. The current research used meta-analysis to investigate processing speed in two neurodevelopmental disorders. This dissertation consisted of four meta-analytic papers. The first paper was a meta-analysis that synthesized a large body of research on processing speed, measured via reaction time (RT) measures, in groups of individuals diagnosed with autism spectrum disorder (ASD) versus age-matched neurotypical comparison groups. This research was motivated by two previous meta-analyses in the literature on processing speed …

Is Burnout A Depressive Condition? A 14-Sample Meta-Analytic And Bifactor Analytic Study, Renzo Bianchi, Jay Verkuilen, Irvin S. Schonfeld, Jari J. Hakanen, Markus Jansson-Fröjmark, Guadalupe Manzano-García, Eric Laurent, Laurenz L. Meier

Publications and Research

There is no consensus on whether burnout constitutes a depressive condition or an original entity requiring specific medical and legal recognition. In this study, we examined burnout–depression overlap using 14 samples of individuals from various countries and occupational domains (N = 12,417). Meta-analytically pooled disattenuated correlations indicated (a) that exhaustion—burnout’s core—is more closely associated with depressive symptoms than with the other putative dimensions of burnout (detachment and efficacy) and (b) that the exhaustion–depression association is problematically strong from a discriminant validity standpoint (r = .80). The overlap of burnout’s core dimension with depression was further illuminated in 14 exploratory structural …

Facial Identification: A Meta-Analysis Of 50 Years Of Research, Jungwon Lee

Dissertations, Theses, and Capstone Projects

The current research built a comprehensive database that includes over 1,000 facial identification studies published in the last five decades. Using this database, two research questions, which are crucial for better understanding facial identification performance, were examined. The questions are 1) how variables influence facial identification performance, and 2) whether findings from facial identification research can be generalized across study types. Topically focused effect-size analyses and study characteristic analyses demonstrated that, among the 38 variables investigated in the current meta-analysis, stimulus alteration and participants’ age produced larger effects on identification performance than other variables. Results from aggregated effect-size analyses supported …

What Influences Language Impairement In Bilingual Aphasia? A Meta-Analytic Review, Ekaterina Kuzmina, Mira Goral, Monica Norvik, Brendan S. Weekes

Publications and Research

Patterns of language impairment in multilingual speakers with post-stroke aphasia are diverse: in some cases the language deficits are parallel, that is, all languages are impaired relatively equally, whereas in other cases deficits are differential, that is, one language is more impaired than the other(s). This diversity stems from the intricate structure of the multilingual language system, which is shaped by a complex interplay of influencing factors, such as age of language acquisition, frequency of language use, premorbid proficiency, and linguistic similarity between one’s languages. Previous theoretical reviews and empirical studies shed some light on these factors, however no clear …

A Meta-Analysis Of Information Processing Measures Of Intelligence, Performance, And Group Score Differences, Elliott C. Larson

Dissertations, Theses, and Capstone Projects

Intelligence is one of the most studied constructs in industrial-organizational (I-O) and educational psychology. Findings from numerous studies and meta-analyses have consistently demonstrated the power of intelligence measures to predict performance across a wide range of domains. This research has been fruitful and provides strong evidence for the utility of intelligence measures in organizations and schools. However, while intelligence measures have been developed and applied for over a century, most research in I-O psychology has relied on operationalizations of intelligence that focus on a person’s knowledge. Meta-theories of intelligence propose that intelligence can simultaneously be conceptualized as a person’s ability …

Inquiry Into The Correlation Between Burnout And Depression, Irvin Sam Schonfeld, Jay Verkuilen, Renzo Bianchi

Publications and Research

The extent to which burnout refers to anything other than a depressive condition remains an object of controversy among occupational health specialists. In three studies conducted in two different countries and two different languages, we investigated the discriminant validity of burnout scales by evaluating the magnitude of the correlation between (latent) burnout and (latent) depression. In Study 1 (N = 911), burnout was assessed with the Maslach Burnout Inventory–General Survey’s Exhaustion subscale and depression with the depression module of the Patient Health Questionnaire (PHQ). In Study 2 (N = 1,386), the Shirom–Melamed Burnout Measure was used to assess burnout and …

Criminal Responsibility: Meta-Analysis And Study Space, Lauren E. Kois

Dissertations, Theses, and Capstone Projects

Criminal responsibility (CR; i.e., sanity) has garnered significant research attention over the years. While some variables predicting insanity outcomes are consistent, others are not. Study-level characteristics, such as sample selection, variability in the operational definition of insanity, or other unknown influences may explain discrepant findings. It is critical to consolidate these variables and systematically assess differences in methodology to understand the state of the literature and to guide future research. As such, I conducted the first meta-analysis and study space analysis (see Malpass et al., 2008) in this area. Only 16 studies met inclusion criteria for the meta-analysis. Summary effects …

Statistical Learning In Specific Language Impairment And Autism Spectrum Disorder: A Meta-Analysis, Rita Obeid, Patricia J. Brooks, Kasey L. Powers, Kristen Gillespie-Lynch, Jarrad A. G. Lum

Publications and Research

Impairments in statistical learning might be a common deficit among individuals with Specific Language Impairment (SLI) and Autism Spectrum Disorder (ASD). Using metaanalysis, we examined statistical learning in SLI (14 studies, 15 comparisons) and ASD (13 studies, 20 comparisons) to evaluate this hypothesis. Effect sizes were examined as a function of diagnosis across multiple statistical learning tasks (Serial Reaction Time, Contextual Cueing, Artificial Grammar Learning, Speech Stream, Observational Learning, and Probabilistic Classification). Individuals with SLI showed deficits in statistical learning relative to age-matched controls. In contrast, statistical learning was intact in individuals with ASD relative to controls. Effect sizes did …

A Replication Of Failure, Not A Failure To Replicate, Gary Holden, Kathleen Barker, Sofie Kuppens, Gary Rosenberg, Jonathan`

Publications and Research

Purpose: The increasing role of systematic reviews in knowledge production demands greater rigor in the literature search process. The performance of the Social Work Abstracts (SWA) database has been examined multiple times over the past three decades. The current study is a replication within this line of research.

Method: Issue level coverage was examined for the same 33 SWA core journals and the same time period as our 2009 study.

Results: The mean percentage of issues missing in the current study was 20%. The mean percentage of issues missing in the current study was significantly greater than …

A Meta-Analysis Of The Prediction Of Violence Among Adults With Mental Disorders, Hing Po Lam

Dissertations, Theses, and Capstone Projects

The study of the risk for violence among persons with mental disorders has received substantial scientific attention over the past few decades; however, many uncertainties and controversies remain due to the wide disparities in the reported results. Using the state-of-the-art perspective of public health, a meta-analysis was conducted to clarify the ambiguities by synthesizing quantitative findings from 85 research reports (completed between January 1970 and May 2010) on violence risk assessment among mentally disordered adults. Results of this meta-analytic study revealed that the estimates of the prevalence of violence among the psychiatric population varied considerably from 1.1% to 78.4% with …