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Articles 1 - 8 of 8
Full-Text Articles in Quantitative Psychology
A Signal Detection Experiment With Limited Number Of Trials, Tadamasa Sawada
A Signal Detection Experiment With Limited Number Of Trials, Tadamasa Sawada
MODVIS Workshop
Signal detection theory has been well accepted in vision science to measure human sensitivity to stimuli in a Psychophysical experiment. The theory is formulated so that the measured sensitivity is independent from a response bias (criterion). The formulation is based on an assumption that number of trials in the experiment is infinite but this assumption cannot be satisfied in practice. The assumption came from two normal distributions used in the formulation. The distributions respectively represent a set of signal trial and that of noise trials in the experiment. In this study, I will show how the violation of the assumption …
Faster Than The Speed Of Rejection: Object Identification Processes During Visual Search For Multiple Targets, Hayward J. Godwin, Stephen Walenchok, Joseph W. Houpt, Michael C. Hout, Stephen D. Goldinger
Faster Than The Speed Of Rejection: Object Identification Processes During Visual Search For Multiple Targets, Hayward J. Godwin, Stephen Walenchok, Joseph W. Houpt, Michael C. Hout, Stephen D. Goldinger
Joseph W. Houpt
When engaged in a visual search for two targets, participants are slower and less accurate in their responses, relative to their performance when searching for singular targets. Previous work on this “dual-target cost” has primarily focused on the breakdown of attention guidance when looking for two items. Here, we investigated how object identification processes are affected by dual-target search. Our goal was to chart the speed at which distractors could be rejected, in order to assess whether dual-target search impairs object identification. To do so, we examined the capacity coefficient, which measures the speed at which decisions can be made, …
Can Two Dots Form A Gestalt? Measuring Emergent Features With The Capacity Coefficient, Robert X.D. Hawkins, Joseph W. Houpt, Ami Eidels, James T. Townsend
Can Two Dots Form A Gestalt? Measuring Emergent Features With The Capacity Coefficient, Robert X.D. Hawkins, Joseph W. Houpt, Ami Eidels, James T. Townsend
Joseph W. Houpt
While there is widespread agreement among vision researchers on the importance of some local aspects of visual stimuli, such as hue and intensity, there is no general consensus on a full set of basic sources of information used in perceptual tasks. Gestalt theories place particular value on emergent features, which are based on the higher-order relationships among elements of a stimulus rather than local properties. Thus, arbitrating between different accounts of features is an important step in arbitrating between local and Gestalt theories of perception in general. In this paper, we present the capacity coefficient from Systems Factorial Technology (SFT) …
Working Memory’S Workload Capacity, Andrew Heathcote, James R. Coleman, Ami Eidels, Jason M. Watson, Joseph W. Houpt, David L. Strayer
Working Memory’S Workload Capacity, Andrew Heathcote, James R. Coleman, Ami Eidels, Jason M. Watson, Joseph W. Houpt, David L. Strayer
Joseph W. Houpt
We examined the role of dual-task interference in working memory using a novel dual 2-back task that requires a redundant-target response (i.e., that neither the auditory nor visual stimulus occurred two back vs. one or both occurred two back) on every trial. Comparisons with performance on single 2 back trials (i.e., with only auditory or only visual stimuli) showed dual-task demands reduced both speed and accuracy. Our task design enabled a novel application of Townsend and Nozawa’s (1995) workload capacity measure, which revealed that the decrement in dual 2-back performance was mediated by sharing of a limited amount of processing …
The Relationship Between Adhd And Trait Facets Of The Five-Factor Model, Todd William Bennett
The Relationship Between Adhd And Trait Facets Of The Five-Factor Model, Todd William Bennett
PCOM Psychology Dissertations
Facets of the Five-Factor Model (FFM) were examined in order to understand its interaction with Attention Deficit Hyperactivity Disorder (ADHD)-symptoms. By utilizing archival data, in a correlational design, adults between the ages of 18-66 were tested for the presence of ADHD, which was then compared with data gathered from the NEO-PI-R. Comorbid psychiatric conditions often associated with ADHD were accounted for in the design. Results partially supported the hypotheses, specifically, that altruism was inversely related to Impulsivity, as predicted. However, other findings largely did not support a relationship between other specific NEO-PI-R facets and ADHD. Other significant relationships that were …
Engaging Youth In Bullying Prevention Through Community-Based Participatory Research, Jen Gibson, Paul D. Flaspohler, Vanessa Watts
Engaging Youth In Bullying Prevention Through Community-Based Participatory Research, Jen Gibson, Paul D. Flaspohler, Vanessa Watts
Faculty Scholarship
Few studies that engage youth in community-based participatory research (CBPR) focus on issues of safety/violence, include elementary school-aged youth, or quantitatively assess outcomes of the CBPR process. This article expands understanding of CBPR with youth by describing and evaluating the outcomes of a project that engaged fifth-grade students at 3 schools in bullying-focused CBPR. Results suggest that the project was associated with decreases in fear of bullying and increases in peer and teacher intervention to stop bullying. We conclude with implications for the engagement of elementary school-aged youth in CBPR to address bullying and other youth issues.
School Mental Health Early Interventions And Academic Outcomes For At-Risk High School Students: A Review Of The Research, Aidyn L. Iachini, Elizabeth Levine Brown, Annahita Ball, Jen Gibson, Steven E. Lize
School Mental Health Early Interventions And Academic Outcomes For At-Risk High School Students: A Review Of The Research, Aidyn L. Iachini, Elizabeth Levine Brown, Annahita Ball, Jen Gibson, Steven E. Lize
Faculty Scholarship
The current educational policy context in the United States necessitates that school-based programs prioritize students’ academic outcomes. This review examined the quantitative research on school mental health (SMH) early interventions and academic outcomes for at risk high school students. Seven articles met the inclusion criteria for this review. All articles were examined according to study design and demographics, early intervention characteristics, and outcomes. Of the studies included, most were conducted in urban settings, involved the implementation of group-based early intervention strategies, and monitored GPA as a distal academic outcome. Counselors were frequent implementers of these early interventions. A meta-analysis found …
Evaluating An Abbreviated Version Of The Paths Curriculum Implemented By School Mental Health Clinicians, Jen Gibson, Shelby Werner, Andrew Sweeny
Evaluating An Abbreviated Version Of The Paths Curriculum Implemented By School Mental Health Clinicians, Jen Gibson, Shelby Werner, Andrew Sweeny
Faculty Scholarship
When evidence-based prevention programs are implemented in schools, adaptations are common. It is important to understand which adaptations can be made while maintaining positive outcomes for students. This preliminary study evaluated an abbreviated version of the Promoting Alternative Thinking Strategies (PATHS) Curriculum implemented by school-based mental health clinicians in preschool/kindergarten classrooms. Results suggest that students (N = 80) demonstrated increases in emotional understanding and prosocial behavior. Children with low initial levels of problem behavior demonstrated large and continual increases in prosocial behavior over the entire course of the intervention, whereas children with high initial levels of problem behavior only demonstrated …