Larry R Price

Larry R Price
Texas State University | TxSt · Director Data Analytics & Research Methodology

Ph.D.

About

115
Publications
31,390
Reads
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2,259
Citations
Citations since 2017
31 Research Items
914 Citations
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2017201820192020202120222023050100150
2017201820192020202120222023050100150
2017201820192020202120222023050100150
Introduction
My research involves advancing psychometric and statistical methods. I am currently working on models of computational psychometrics, computational neuroscience, and network models of psychopathology. I recently published Psychometric Methods: Theory into Practice, Guilford Press, New York, NY. I also have an intensive research agenda focusing on advancing statistical methods in neuroimaging (fMRI, PET, TMS, ECoG).
Additional affiliations
May 2002 - present
University of Texas Health Science Center at San Antonio
Position
  • Statistician
June 2001 - September 2017
Texas State University
Position
  • Managing Director
May 1999 - July 2001
The Psychological Corporation
Position
  • Senior Psychometrician
Education
January 1993 - May 1997
Georgia State University
Field of study
  • Research, Measurement, & Statistics

Publications

Publications (115)
Article
Full-text available
Introduction This project aimed to investigate the association between biometric components of metabolic syndrome (MetS) with gray matter volume (GMV) obtained with magnetic resonance imaging (MRI) from a large cohort of community-based adults ( n = 776) subdivided by age and sex and employing brain regions of interest defined previously as the “Ne...
Article
Full-text available
Background Only a relatively low proportion of university students seek help for anxiety and depression disorders, partly because they dislike current drug and psychological treatment options and would prefer home-based care. The aim of this study is to determine the feasibility, acceptability and cost utility of Alpha-Stim cranial electrostimulati...
Article
Full-text available
Purpose/objective: This work provides comprehensive analyses targeting the factor structure and dimensionality of the Disability Identity Development Scale (DIDS). In Forber-Pratt et al., 2020, disability was defined broadly to include individuals with visible or hidden disabilities across many disability groups (i.e., physical, intellectual, lear...
Article
Full-text available
The posterior cerebellum is the most significantly compromised brain structure in individuals with metabolic syndrome (MetS) (Hum Brain Mapp 40(12):3575-3588, 2019). In light of this, we hypothesized that cognitive decline reported in patients with MetS is likely related to posterior cerebellar atrophy. In this study, we performed a post hoc analys...
Article
Background: Cranial electrotherapy stimulation (CES) is a safe and well-tolerated 6-12 week treatment that is clinically and cost effective on both anxiety and depression symptoms resulting in sustained remission of these symptoms at 12 and 24 weeks in generalized anxiety disorder (GAD) patients. The aim of the current report was to explore whethe...
Article
Full-text available
It is generally accepted that relatively more permanent (i.e., more temporally persistent) traits are more valuable for biometric performance than less permanent traits. Although this finding is intuitive, there is no current work identifying exactly where in the biometric analysis temporal persistence makes a difference. In this paper, we answer t...
Article
Purpose The goal of this study was to determine whether the results obtained from a 25-utterance conversational language sample were as reliable as those obtained from a 50-utterance sample. Method Robust conversational language samples from 220 children with typically developing language (106 boys, 114 girls) ranging in age from 3;2 to 7;10 (year...
Article
Full-text available
Background In multiple sclerosis (MS), gray matter (GM) atrophy exhibits a specific pattern, which correlates strongly with clinical disability. However, the mechanism of regional specificity in GM atrophy remains largely unknown. Recently, the network degeneration hypothesis (NDH) was quantitatively defined (using coordinate-based meta-analysis) a...
Preprint
Full-text available
It is generally accepted that relatively more permanent (i.e., more temporally persistent) traits are more valuable for biometric performance than less permanent traits. Although this finding is intuitive, there is no current work identifying exactly where in the biometric analysis temporal persistence makes a difference. In this paper, we answer t...
Article
It is generally accepted that relatively more permanent (i.e., more temporally persistent) traits are more valuable for biometric performance than less permanent traits. Although this finding is intuitive, there is no current work identifying exactly where in the biometric analysis temporal persistence makes a difference. In this paper, we answer t...
Article
Purpose/objective: This article describes the initial factor exploration of disability identity and preliminary psychometric characteristics based on an adult self-report tool. Disability was defined broadly, and the sample included individuals with visible and/or hidden disabilities across many disability groups (i.e., physical, intellectual, lea...
Cover Page
Full-text available
COVER ILLUSTRATION Individuals with metabolic syndrome, a syndrome characterized by increased waist circumference (illustrated as the cartoon man and woman in the picture), fasting plasma glucose, triglycerides, blood pressure, and decreased HDL cholesterol (illustrated as involved tissues: adipose, vascular, pancreatic, and muscular) have been sho...
Article
Full-text available
The comorbidity of chronic pain and opioid addiction is a serious problem that has been growing with the practice of prescribing opioids for chronic pain. Neuroimaging research has shown that chronic pain and opioid dependence both affect brain structure and function, but this is the first study to evaluate the neurophysiological alterations in pat...
Article
Full-text available
That metabolic syndrome (MetS) is associated with age‐related cognitive decline is well established. The neurobiological changes underlying these cognitive deficits, however, are not well understood. The goal of this study was to determine whether MetS is associated with regional differences in gray‐matter volume (GMV) using a cross‐sectional, betw...
Article
Background: Cranial electrotherapy stimulation (CES) is a well-tolerated neuromodulation treatment with demonstrated trial efficacy in anxiety disorders. The aim of the current study was to demonstrate its clinical and cost effectiveness during and after CES in people with generalised anxiety disorder (GAD) who had not responded to low intensity p...
Conference Paper
Full-text available
OBJECTIVES/SPECIFIC AIMS: Our objective is to understand the influence of the features comprising metabolic syndrome (central obesity, raised fasting plasma glucose, triglycerides, blood pressure, and decreased HDL cholesterol) on brain structure in men and women. With the understanding that MetS is a strong predictor of gray matter volume loss in...
Research
The United States faces high demand for science, technology, engineering, or mathematics (STEM) professionals and a scarce supply of individuals who pursue STEM careers, especially minority populations in the U.S with proficiency in a language other than English. The primary goal of this research was to determine the impact of use of Spanish in the...
Article
A problem central to structural equation modeling is measurement model specification error and its propagation into the structural part of nonrecursive latent variable models. Full-information estimation techniques such as maximum likelihood are consistent when the model is correctly specified and the sample size large enough; however, any misspeci...
Article
Full-text available
Purpose The hippocampus plays a central role in cognitive and affective processes and is commonly implicated in neurodegenerative diseases. Our study aimed to identify and describe a hippocampal network model (HNM) using trans-diagnostic MRI data from the BrainMap® database. We used meta-analysis to test the network degeneration hypothesis (NDH) (S...
Data
Temporal Lobe Epilepsy Hippocampal Network Structural MACM BrainMap Workspace.
Data
Hippocampal Network Model: Structural MACM BrainMap Workspace.
Data
Alzheimer's Disease Hippocampal Network Structural MACM BrainMap Workspace.
Data
BrainMap's VBM database arranged by ICD-10 codes, total number of papers per codable disease, total number of experiments per codable disease, and total number of foci reported per codable disease.
Data
Schizophrenia Hippocampal Network Structural MACM BrainMap Workspace.
Data
Mild Cognitive Impairment Hippocampal Network Structural MACM BrainMap Workspace.
Article
Full-text available
Psychological distress, defined as depression, anxiety, and insomnia in this study, can occur following the birth of a baby as new mothers, in addition to marked physiological changes, are faced with adapting to new roles and responsibilities. We investigated the cooccurrence of stress, depression, anxiety, and insomnia in mothers during the postpa...
Book
Psychometric Methods: Theory into Practice is designed for master’s or doctoral-level courses in psychometrics in education, psychology, health and behavioral sciences. The book is also designed for professionals in a variety of fields desiring guidance on theory-based application of psychometric methods. The book covers measurement and statistical...
Article
Full-text available
New software that performs Classical and Bayesian Instrument Development (CBID) is reported that seamlessly integrates expert (content validity) and participant data (construct validity) to produce entire reliability estimates with smaller sample requirements. The free CBID software can be accessed through a website and used by clinical investigato...
Article
New software that performs Classical and Bayesian Instrument Development (CBID) is reported that seamlessly integrates expert (content validity) and participant data (construct validity) to produce entire reliability estimates with smaller sample requirements. The free CBID software can be accessed through a website and used by clinical investigato...
Article
Advances in the sophistication of imaging techniques necessitate the development of techniques to model the neural and cognitive phenomena they represent. Using electrocorticographic (ECoG) data, we propose a data-driven approach using ordinary differential equations and Bayesian differential structural equation modeling (BdSEM) to model effective...
Article
Full-text available
The default mode network (DMN) is a set of regions that is tonically engaged during the resting state and exhibits task-related deactivation that is readily reproducible across a wide range of paradigms and modalities. The DMN has been implicated in numerous disorders of cognition and, in particular, in disorders exhibiting age-related cognitive de...
Article
Item response theory (IRT) models provide an appropriate alternative to the classical ordinal confirmatory factor analysis (CFA) during the development of patient-reported outcome measures (PROMs). Current literature has identified the assessment of IRT model fit as both challenging and underdeveloped. This study evaluates the performance of Ordina...
Article
In this study, service members and veterans reported that cranial electrotherapy stimulation (CES) was a safe and effective treatment for pain and headache. The most striking finding was that subjects in the CES-only (no medication) group consistently reported higher pain relief from CES than those individuals in the group that received CES and med...
Conference Paper
Resting State fMRI Data and Bayesian Network Diagnostic Capability
Conference Paper
Apraxia of Speech (AOS) is a speech disorder that results from a cerebral vascular accident or stroke. People with apraxia lose the ability to speak intelligibly due to an impairment in motor programming of the speech muscles. Diagnosis of AOS is accomplished by perceptual judgements of speech and, like other disorders, must also rule out other spe...
Article
Full-text available
Background Developing valid and reliable patient-reported outcome measures (PROMs) is a critical step in promoting patient-centered health care, a national priority in the U.S. Small populations or rare diseases often pose difficulties in developing PROMs using traditional methods due to small samples. Methods To overcome the small sample size cha...
Article
Sijtsma and van der Ark present a broad set of models and methods for reliability estimation, and their discussion of similarities and differences provides clear information for nurse researchers to move forward in their instrument development projects. In particular, we applaud the authors' clear exposition of the factor analytic model and its uti...
Article
Full-text available
This article proposes and evaluates a novel biometric approach utilizing the internal, nonvisible, anatomical structure of the human eye. The proposed method estimates the anatomical properties of the human oculomotor plant from the measurable properties of human eye movements, utilizing a two-dimensional linear homeomorphic model of the oculomotor...
Article
Full-text available
Cranial electrotherapy stimulation (CES) is being prescribed for service members and veterans for the treatment of anxiety, posttraumatic stress disorder (PTSD), insomnia and depression. The purpose of this study was to examine service members' and veterans' perceptions of the effectiveness and safety of CES treatment. Service members and veterans...
Article
Full-text available
Noninvasive markers of brain function could yield biomarkers in many neurological disorders. Disease models constrained by coordinate-based meta-analysis are likely to increase this yield. Here, we evaluate a thalamic model of temporal lobe epilepsy that we proposed in a coordinate-based meta-analysis and extended in a diffusion tractography study...
Article
Full-text available
Voice control is critical to communication. To date, studies have used behavioral, electrophysiological and functional data to investigate the neural correlates of voice control using perturbation tasks, but have yet to examine the interactions of these neural regions. The goal of this study was to use structural equation modeling of functional neu...
Conference Paper
A problem central to structural equation modeling is measurement model specification error and its propagation within nonrecursive latent variable models. Full information estimation techniques such as maximum likelihood are consistent when the model is correctly specified and the sample size large enough; however, any misspecification within the m...
Article
The Texas State University-San Marcos undergraduate healthcare administration program requires all bachelors of health administration (BHA) students to pass a comprehensive examination to demonstrate their knowledge of specific core competencies. This also demonstrates completion of their didactic coursework in order to enter a practical internship...
Conference Paper
Confirmatory factor analysis (CFA) plays an integral role in establishing evidence for the validity of test scores. The goals of this study included (a) investigating factors contributing to a perfect model-data fit in a second-order confirmatory factor analysis, (b) demonstrating the utility of Muthén and Asparouhov’s (2012) exploratory/confirmato...
Article
Establishing adequacy of psychometric properties of an instrument involves acquisition and evaluation of evidence based on item content and internal structure. Content validity evidence consists of subject matter experts providing quantitative ratings of the extent to which items are a representative sample of targeted domain. Evidence of internal...
Article
Research today entails the use of complex and effective tools for research. Hoping to provide for this need, The Oxford Handbook of Quantitative Methods in Psychology hopes to deliver some valid and generalizable answers to contemporary challenging research quandaries. It is a source for learning and reviewing current best-practices in quantitative...
Chapter
A brief history of imaging neuroscience is presented followed by an introduction to data acquisition using positron emission tomography (PET) and functional magnetic resonance imaging (fMRI). Next, statistical parametric mapping is introduced in conjunction with random field theory as being fundamental to identifying sites of neural activation. The...
Data
A novel biometrics approach that performs authentica-tion via the internal non-visible anatomical structure of an individual human eye is proposed and evaluated. To pro-vide authentication, the proposed method estimates the anatomical characteristics of the oculomotor plant (com-prising the eye globe, its muscles and the brain's control signals). T...
Article
A novel biometrics approach that performs authentication via the internal non-visible anatomical structure of an individual human eye is proposed and evaluated. To provide authentication, the proposed method estimates the anatomical characteristics of the oculomotor plant (comprising the eye globe, its muscles and the brain’s control signals). The...
Article
The aim of this study was to compare the small sample (N = 1, 3, 5, 10, 15) performance of a Bayesian multivariate vector autoregressive (BVAR-SEM) time series model relative to frequentist power and parameter estimation bias. A multivariate autoregressive model was developed based on correlated autoregressive time series vectors of varying lengths...
Article
Establishing adequacy of psychometric properties of an instrument involves acquisition and evaluation of evidence based on item content and internal structure. Content validity evidence consists of subject matter experts providing quantitative ratings of the extent to which items are a representative sample of targeted domain. Evidence of internal...
Article
Full-text available
Chronic pain is a significant problem for many individuals following spinal cord injury (SCI). Unfortunately, SCI-related neuropathic pain has proven to be largely refractory to analgesic medications and other available treatments. Cranial electrotherapy stimulation (CES) has been effective in managing some types of pain. It involves the applicatio...
Article
Content validity elicits expert opinion regarding items of a psychometric instrument. Expert opinion can be elicited in many forms: for example, how essential an item is or its relevancy to a domain. This study developed an alternative tool that elicits expert opinion regarding correlations between each item and its respective domain. With 109 Regi...
Article
Full-text available
In this article, we describe and report on the results of a study in Texas that tested 2 models of professional development for classroom teachers as a way of improving their practices and increasing the reading achievement of their students. To meet this goal, 44 participating teachers in grades 2-8 learned to teach their students cognitive readin...
Article
Many lesbian, gay, and bisexual (LGB) individuals manage the degree to which their sexual orientation is known to others. Visibility management, the process of regulating the exposure of one's orientation, is an important part of the lesbian/gay/bisexual experience in community, family, and virtually all other social settings. The degree to which o...
Poster
The aim of this investigation was to present a method for graphical model selection of the functional connectivity among regions of interest in the human brain where little or no previous theory exists. We propose and illustrate a fully Bayesian approach for deriving network models among regions of interest that allows researchers to address the is...
Article
The aims of this study were to present a method for developing a path analytic network model using data acquired from positron emission tomography. Regions of interest within the human brain were identified through quantitative activation likelihood estimation meta-analysis. Using this information, a "true" or population path model was then develop...
Article
Structural equation modeling (SEM) was applied to positron emission tomographic (PET) images acquired during transcranial magnetic stimulation (TMS) of the primary motor cortex (M1(hand)). TMS was applied across a range of intensities, and responses both at the stimulation site and remotely connected brain regions covaried with stimulus intensity....
Article
To determine the effect of respiratory resistance training (RRT) with a concurrent flow respiratory (CFR) device on respiratory function and aerobic power in wheelchair athletes. Ten male wheelchair athletes (8 with spinal cord injuries, 1 with a neurological disorder, and 1 with postpolio syndrome), were matched by lesion level and/or track rating...
Article
Full-text available
An examinee-level (or conditional) reliability is proposed for use in both classical test theory (CTT) and item response theory (IRT). The well-known group-level reliability is shown to be the average of conditional reliabilities of examinees in a group or a population. This relationship is similar to the known relationship between the square of th...
Article
The study sought to determine if 3 months of daily cranial electrotherapy stimulation (CES) treatment reduced aggression in violent neuropsychiatric patients in a maximum security hospital. CES was used to treat 48 chronically aggressive neuropsychiatric patients in a maximum security psychiatric hospital. Retrospective chart review compared 3 mont...
Article
This research examined the predictive accuracy of selected variables (high school letter grade average, first-year college grade point average (GPA), residence location, cumulative hours taken, mother's education level, father's education level, and gender) on the persistence of college freshmen to their sophomore year. A model consisting of 1,014...
Article
Full-text available
A specific recommendation of the 1999 Standards for Educational and Psychological Testing by the American Educational Research Association, the American Psychological Association, and the National Council on Measurement in Education is that test publishers report estimates of the conditional standard error of measurement (SEM). Procedures for calcu...
Article
Over 900 Texas teachers were surveyed on their perceptions of the Texas Assessment of Academic Skills (TAAS), which at the time of the survey was Texas's high-stakes achievement test. The sample included elementary, middle, and high schools within each of four test performance levels: exemplary, recommended , acceptable, and low performing. Respond...
Article
The standardization sample from the WMS-III (weighted N = 1250) (The Psychological Corporation, 1997; Tulsky & Ledbetter, 2000), which varied in age from 16 to 89, was used to determine whether storage of verbal and spatial information was affected by normal aging. A previous study with the same sample using an analysis of variance approach showed...
Article
This paper presents the Delayed Memory Index (DMI) as an alternative to the General Memory Index (GMI) of the Weschler Memory Scale-Third Edition (WMS-III). The WMS-III Immediate Memory Index (IMI) and the GMI are not parallel in structure, making a direct comparison between these index scores (i.e., immediate vs. delayed memory variables) difficul...