Jay Verkuilen
Biographic Data
| ID | 265555 |
|---|---|
| NAME | Jay Verkuilen |
| GIVEN NAMES | Jay |
| FAMILY NAME | Verkuilen |
| SIGNATURE | VERKUILEN J |
| AFFILIATIONS | University of Illinois Urbana-Champaign |
| ORCID | 0000-0003-3546-3411 |
| VERIFIED | Yes |
| TOTAL WORKS | 14 |
| TOTAL CITATIONS | 957 |
| WORKS AS AUTHOR | 14 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2002 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 4 |
Defining asymmetry in item response theory
Asymmetric item response theory (asymIRT) has emerged as an important extension of classical IRT, motivated by empirical evidence and theoretical arguments that symmetric item response functions (IRFs) often inadequately describe real response processes. Despite rapid model development, there remains ambiguity regarding what constitutes asymmetry, how different models relate to one another, and how asymmetry should be quantified. This paper provi…
Impact of Perceived Inflation Threat and Financial Stress on Parental Involvement in Children’s Education
The separability of early vocabulary and grammar knowledge
We use novel statistical methods to study the separability of vocabulary and grammar. • Vocabulary and grammar are partially separable by two years of age. • This is an important developmental benchmark for models of language acquisition. A long-standing question in language development concerns the nature of the relationship between early lexical and grammatical knowledge. The very strong correlation between the two has led some to argue that le…
Measurement invariance of the Pandemic Anxiety Inventory in different demographic groups
The PAI shows measurement invariance across a variety of demographic groups. Our findings suggest that the instrument can be meaningfully employed to compare pandemic-related anxiety across these groups
Measuring individual true change with PROMIS using IRT-based plausible values
Exploration of the experiences of sexual and gender minority students in school psychology programs
Individual factors and cisgender college students' attitudes and behaviors toward transgender individuals
The present study is one of few to investigate both anti‐trans discrimination and anti‐trans prejudice. It examined four individual factors (religiosity; political beliefs; affiliation with LGBTQ [lesbian, gay, bisexual, transgender, and queer] people; gender role beliefs) through a lens of hetero‐cis‐normativity to understand their association with anti‐trans attitudes and reported behaviors. Using a sample of 302 cisgender college students from…
Same Facts, Different Interpretations
Scholars assume that citizens perform better when they know pertinent facts. Factual beliefs, however, become relevant for political judgments only when people interpret them. Interpretations provide opportunities for partisans to rationalize their existing opinions. Using panel studies, we examine whether and how partisans updated factual beliefs, interpretations of beliefs, and opinions about the handling of the Iraq war as real-world condition…
A better lemon squeezer? Maximum-likelihood regression with beta-distributed dependent variables.
Uncorrectable skew and heteroscedasticity are among the "lemons" of psychological data, yet many important variables naturally exhibit these properties. For scales with a lower and upper bound, a suitable candidate for models is the beta distribution, which is very flexible and models skew quite well. The authors present maximum-likelihood regression models assuming that the dependent variable is conditionally beta distributed rather than Gaussia…
Assigning Membership in a Fuzzy Set Analysis
This article provides a largely nontechnical discussion of the acquisition of membership values in fuzzy set analyses. First the basic properties of a membership are discussed. Then the three common strategies of membership assignment-direct subjective assignment, indirect subjective assignment, and transformation-are critically examined in turn. Examples are used to illustrate the techniques. The connection with existing psychometric and statist…
Adaptive Incrementalism and Complexity
The literature on incrementalism is concerned with decentralized adaptation by decision makers with limited information to the complexity of the decision environment. However, the specific aspects of limited information and complexity are often left unexamined, leaving conclusions ambiguous. In order to understand better the effect of limited information and complexity on decentralized decision making, we design an experimental game in which subj…
Generating Better Data
Conceptualizing and Measuring Democracy
A comprehensive and integrated framework for the analysis of data is offered and used to assess data sets on democracy. The framework first distinguishes among three challenges that are sequentially addressed: conceptualization, measurement, and aggregation. In turn, it specifies distinct tasks associated with these challenges and the standards of assessment that pertain to each task. This framework is applied to the data sets on democracy most f…
Generating Better Data
The comments on our article are a sign of the seriousness with which scholars are considering matters of data generation and, more specifically, the problem of conceptualizing and measuring democracy. Hence we welcome the authors’ reflections on the difficult yet essential task of generating better data. Some points of disagreement remain, and we will address them. But we mainly seek to discuss and build on the constructive suggestions provided i…
Conceptualizing and Measuring Democracy
A comprehensive and integrated framework for the analysis of data is offered and used to assess data sets on democracy. The framework first distinguishes among three challenges that are sequentially addressed: conceptualization, measurement, and aggregation. In turn, it specifies distinct tasks associated with these challenges and the standards of assessment that pertain to each task. This framework is applied to the data sets on democracy most f…
Same Facts, Different Interpretations
Scholars assume that citizens perform better when they know pertinent facts. Factual beliefs, however, become relevant for political judgments only when people interpret them. Interpretations provide opportunities for partisans to rationalize their existing opinions. Using panel studies, we examine whether and how partisans updated factual beliefs, interpretations of beliefs, and opinions about the handling of the Iraq war as real-world condition…
Assigning Membership in a Fuzzy Set Analysis
This article provides a largely nontechnical discussion of the acquisition of membership values in fuzzy set analyses. First the basic properties of a membership are discussed. Then the three common strategies of membership assignment-direct subjective assignment, indirect subjective assignment, and transformation-are critically examined in turn. Examples are used to illustrate the techniques. The connection with existing psychometric and statist…
Generating Better Data
The comments on our article are a sign of the seriousness with which scholars are considering matters of data generation and, more specifically, the problem of conceptualizing and measuring democracy. Hence we welcome the authors’ reflections on the difficult yet essential task of generating better data. Some points of disagreement remain, and we will address them. But we mainly seek to discuss and build on the constructive suggestions provided i…
Individual factors and cisgender college students' attitudes and behaviors toward transgender individuals
The present study is one of few to investigate both anti‐trans discrimination and anti‐trans prejudice. It examined four individual factors (religiosity; political beliefs; affiliation with LGBTQ [lesbian, gay, bisexual, transgender, and queer] people; gender role beliefs) through a lens of hetero‐cis‐normativity to understand their association with anti‐trans attitudes and reported behaviors. Using a sample of 302 cisgender college students from…
Generating Better Data
Conceptualizing and Measuring Democracy
A comprehensive and integrated framework for the analysis of data is offered and used to assess data sets on democracy. The framework first distinguishes among three challenges that are sequentially addressed: conceptualization, measurement, and aggregation. In turn, it specifies distinct tasks associated with these challenges and the standards of assessment that pertain to each task. This framework is applied to the data sets on democracy most f…
Generating Better Data
The comments on our article are a sign of the seriousness with which scholars are considering matters of data generation and, more specifically, the problem of conceptualizing and measuring democracy. Hence we welcome the authors’ reflections on the difficult yet essential task of generating better data. Some points of disagreement remain, and we will address them. But we mainly seek to discuss and build on the constructive suggestions provided i…
Adaptive Incrementalism and Complexity
The literature on incrementalism is concerned with decentralized adaptation by decision makers with limited information to the complexity of the decision environment. However, the specific aspects of limited information and complexity are often left unexamined, leaving conclusions ambiguous. In order to understand better the effect of limited information and complexity on decentralized decision making, we design an experimental game in which subj…
Assigning Membership in a Fuzzy Set Analysis
This article provides a largely nontechnical discussion of the acquisition of membership values in fuzzy set analyses. First the basic properties of a membership are discussed. Then the three common strategies of membership assignment-direct subjective assignment, indirect subjective assignment, and transformation-are critically examined in turn. Examples are used to illustrate the techniques. The connection with existing psychometric and statist…
A better lemon squeezer? Maximum-likelihood regression with beta-distributed dependent variables.
Uncorrectable skew and heteroscedasticity are among the "lemons" of psychological data, yet many important variables naturally exhibit these properties. For scales with a lower and upper bound, a suitable candidate for models is the beta distribution, which is very flexible and models skew quite well. The authors present maximum-likelihood regression models assuming that the dependent variable is conditionally beta distributed rather than Gaussia…
Same Facts, Different Interpretations
Scholars assume that citizens perform better when they know pertinent facts. Factual beliefs, however, become relevant for political judgments only when people interpret them. Interpretations provide opportunities for partisans to rationalize their existing opinions. Using panel studies, we examine whether and how partisans updated factual beliefs, interpretations of beliefs, and opinions about the handling of the Iraq war as real-world condition…
Exploration of the experiences of sexual and gender minority students in school psychology programs
Individual factors and cisgender college students' attitudes and behaviors toward transgender individuals
The present study is one of few to investigate both anti‐trans discrimination and anti‐trans prejudice. It examined four individual factors (religiosity; political beliefs; affiliation with LGBTQ [lesbian, gay, bisexual, transgender, and queer] people; gender role beliefs) through a lens of hetero‐cis‐normativity to understand their association with anti‐trans attitudes and reported behaviors. Using a sample of 302 cisgender college students from…
Measuring individual true change with PROMIS using IRT-based plausible values
Measurement invariance of the Pandemic Anxiety Inventory in different demographic groups
The PAI shows measurement invariance across a variety of demographic groups. Our findings suggest that the instrument can be meaningfully employed to compare pandemic-related anxiety across these groups
The separability of early vocabulary and grammar knowledge
We use novel statistical methods to study the separability of vocabulary and grammar. • Vocabulary and grammar are partially separable by two years of age. • This is an important developmental benchmark for models of language acquisition. A long-standing question in language development concerns the nature of the relationship between early lexical and grammatical knowledge. The very strong correlation between the two has led some to argue that le…
Defining asymmetry in item response theory
Asymmetric item response theory (asymIRT) has emerged as an important extension of classical IRT, motivated by empirical evidence and theoretical arguments that symmetric item response functions (IRFs) often inadequately describe real response processes. Despite rapid model development, there remains ambiguity regarding what constitutes asymmetry, how different models relate to one another, and how asymmetry should be quantified. This paper provi…
Impact of Perceived Inflation Threat and Financial Stress on Parental Involvement in Children’s Education
Psychology (8 works) · Political science (6 works) · Economics (5 works) · Social Psychology (5 works) · Computer Science (4 works) · Econometrics (4 works) · Social Psychology (4 works) · Clinical Psychology (3 works) · Developmental psychology (3 works) · Electoral Systems and Political Participation (3 works)