Search Results - "Boker, Steven"

Determining Synchrony Between Behavioral Time Series: An Application of Surrogate Data Generation for Establishing Falsifiable Null-Hypotheses by Moulder, Robert G, Boker, Steven M, Ramseyer, Fabian, Tschacher, Wolfgang

“…Synchrony between interacting systems is an important area of nonlinear dynamics in physical systems. Recently psychological researchers from multiple areas of…”
Get full text

OpenMx 2.0: Extended Structural Equation and Statistical Modeling by Neale, Michael C., Hunter, Michael D., Pritikin, Joshua N., Zahery, Mahsa, Brick, Timothy R., Kirkpatrick, Robert M., Estabrook, Ryne, Bates, Timothy C., Maes, Hermine H., Boker, Steven M.

“…The new software package OpenMx 2.0 for structural equation and other statistical modeling is introduced and its features are described. OpenMx is evolving in…”
Get full text

Modular Open-Source Software for Item Factor Analysis by Pritikin, Joshua N., Hunter, Micheal D., Boker, Steven M.

“…This article introduces an item factor analysis (IFA) module for OpenMx, a free, open-source, and modular statistical modeling package that runs within the R…”
Get full text

The Pairwise Approximate Spatiotemporal Symmetry Algorithm: A Method for Segmenting Time Series Pairs by Sjobeck, Gustav R., Boker, Steven M., Scheidt, Carl E., Tschacher, Wolfgang

“…Methods that measure the association between two intensively measured time series are of interest to researchers studying the symmetry of behaviors during…”
Get full text

Extracting Nonlinear Dynamics from Psychological and Behavioral Time Series Through HAVOK Analysis by Moulder, Robert G., Martynova, Elena, Boker, Steven M.

“…Analytical methods derived from nonlinear dynamical systems, complexity, and chaos theories offer researchers a framework for in-depth analysis of time series…”
Get full text

Resilience Comes of Age: Defining Features in Later Adulthood by Ong, Anthony D., Bergeman, C. S., Boker, Steven M.

“…ABSTRACT Historically, resilience research has been largely the purview of developmental investigators dealing with early childhood and adolescence. This…”
Get full text

Separating Long-Term Equilibrium Adaptation from Short-Term Self-Regulation Dynamics Using Latent Differential Equations by Boker, Steven M, Daniel, Katharine E, Orzek, Jannik

“…Self-regulating systems change along different timescales. Within a given week, a depressed person's affect might oscillate around a low equilibrium point…”
Get full text

A Conversation between Theory, Methods, and Data by Boker, Steven M., Martin, Mike

“…The 10 year anniversary of the COGITO Study provides an opportunity to revisit the ideas behind the Cattell data box. Three dimensions of the persons ×…”
Get full text

Stability and spread: A novel method for quantifying transitions within multivariate binary time series data by Daniel, Katharine E., Moulder, Robert G., Teachman, Bethany A., Boker, Steven M.

“…We present a novel method for quantifying transitions within multivariate binary time series data, using a sliding series of transition matrices, to derive…”
Get full text

HAVOK Extensions for Psychological Time Series Forecasting by Martynova, Elena, Moulder, Robert G., Boker, Steven M.

Get full text

Products of Variables in Structural Equation Models by Boker, Steven M., von Oertzen, Timo, Pritikin, Joshua N., Hunter, Michael D., Brick, Timothy R., Brandmaier, Andreas M., Neale, Michael C.

“…A general method is introduced in which variables that are products of other variables in the context of a structural equation model (SEM) can be decomposed…”
Get full text

Modeling Latent Topics in Social Media using Dynamic Exploratory Graph Analysis: The Case of the Right-wing and Left-wing Trolls in the 2016 US Elections by Golino, Hudson, Christensen, Alexander P., Moulder, Robert, Kim, Seohyun, Boker, Steven M.

“…The past few years were marked by increased online offensive strategies perpetrated by state and non-state actors to promote their political agenda, sow…”
Get full text

The role of perceived negative partner behavior in daily snacking behavior: A dynamical systems approach by Lin, Jingrun, MacCormack, Jennifer K., Boker, Steven M., Coan, James A., Stanton, Sarah C.E.

“…Past work suggested that psychological stress, especially in the context of relationship stress, is associated with increased consumption of energy-dense food…”
Get full text

Emotional engagement with close friends in adolescence predicts neural correlates of empathy in adulthood by Lin, Jingrun, Stern, Jessica A, Allen, Joseph P, Boker, Steven M, Coan, James A

“…Empathy requires the ability to understand another's point of view and is critical for motivating a person to help others. However, little is known about the…”
Get full text

Entropy Fit Indices: New Fit Measures for Assessing the Structure and Dimensionality of Multiple Latent Variables by Golino, Hudson, Moulder, Robert, Shi, Dingjing, Christensen, Alexander P., Garrido, Luis Eduardo, Nieto, Maria Dolores, Nesselroade, John, Sadana, Ritu, Thiyagarajan, Jotheeswaran Amuthavalli, Boker, Steven M.

“…The accurate identification of the content and number of latent factors underlying multivariate data is an important endeavor in many areas of Psychology and…”
Get full text

Trait Neuroticism is Associated with how Often People Switch Between Emotion Regulation Strategies Used to Manage Negative Emotions in Daily Life by Daniel, Katharine E., Moulder, Robert G., Southward, Matthew W., Cheavens, Jennifer S., Boker, Steven M.

“…Switching between different emotion regulation strategies may promote mental health by helping match strategy use to different situations. However, switching…”
Get full text

Tangle: A Metric for Quantifying Complexity and Erratic Behavior in Short Time Series by Moulder, Robert G., Daniel, Katharine E., Teachman, Bethany A., Boker, Steven M.

“…Temporal complexity refers to qualities of a time series that are emergent, erratic, or not easily described by linear processes. Quantifying temporal…”
Get full text

A Note on the Usefulness of Constrained Fourth-Order Latent Differential Equation Models in the Case of Small T by Hardt, Katinka, Boker, Steven M., Bergeman, Cindy S.

“…Constrained fourth-order latent differential equation (FOLDE) models have been proposed (e.g., Boker et al. 2020 ) as alternative to second-order latent…”
Get full text

Semantic Activity Analytics for Healthy Aging: Challenges and Opportunities by Martin, Mike, Weibel, Robert, Rocke, Christina, Boker, Steven M.

“…As real-life activity data from many aging individuals become available, insights gleaned from such data could be leveraged to foster healthy aging. The…”
Get full text

Within-person changes in salivary testosterone and physical characteristics of puberty predict boys' daily affect by Klipker, Kathrin, Wrzus, Cornelia, Rauers, Antje, Boker, Steven M., Riediger, Michaela

“…Recent investigations highlighted the role of within-person pubertal changes for adolescents' behavior. Yet, little is known about effects on adolescents'…”
Get full text