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School of Psychology

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The impact of virtuality on team functioning: a meta-analytic integration

2012-11-14 , Seely, Peter W.

Communication technologies have become a central characteristic of workplace functioning. The literature has suggested that the use of these technologies fundamentally changes the manner in which team members interact. The present study sought to reorganize previous research on the impact of virtuality on team emergent states and behavioral processes to elucidate how different degrees of team virtuality shape team functioning, and to investigate the manner in which these relationships differ according to team type, team membership stability, and publication year. Findings from 174 studies (total number of teams = 9204; total N approximately 26,050) suggest that there is not a strong relationship between team virtuality and emergent states and behavioral processes. However, moderator analyses revealed that a reliance on highly virtual tools may be most detrimental to action teams and ad hoc teams. Moreover, findings demonstrate that the degree to which virtuality shapes team transition and action process may be changing over time.

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The common elements of working memory capacity and fluid intelligence: primary memory, secondary memory and executive attention

2012-08-16 , Shipstead, Zachary M.

Working memory is a mental system that is related to cognitive control and higher cognition. Although the topic of working memory is well researched, there is a great deal of debate about the mechanisms that drive individual differences in working memory capacity. Moreover, little is known about the direct relationships between different types of working memory tasks. The present study uses structural equation modeling to examine three varieties of working memory task: The complex span, running memory span, and visual arrays. It is found that, while complex and running span performance is directly predicted by immediate memory and retrieval from long-term memory, visual arrays is directly predicted by attention control. Despite these differences, all tasks are found to be united by executive attention, which is conceptualized as an executive process that is apparent across several types of attention and memory task. A second analysis examines the relationship between working memory and general fluid intelligence. It is concluded that, while executive attention accounts for the largest portion of the correlation between working memory and fluid intelligence, immediate memory and retrieval from long term memory are also critical to explaining this relationship.

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Reality monitoring, metacognitive accuracy, and aging: expanding the view on age-related deficits for source information

2012-07-03 , Sinclair, Starlette M.

The research presented here focused primarily on an attempt to bridge the two literatures of source memory and metameory on the topic of 'monitoring'. The contributions were two-fold: an investigation of the viability of a metacognitive judgment for SM: the judgment of source learning (JOSL), and a simultaneous investigation of the relationship of age and 'monitoring' in source memory and metacognition. In the first experiment, young participants (18-25 years of age) were asked to predict (using JOSLs) whether they would be able to discriminate between pictures that were presented to them during study, images of words they generated during study, or words they never studied in a later memory test. Participants made either immediate or delayed JOSLs (on a 0-100 scale) for each item presented during the study phase. Experiment 2 was a cross-sectional study comparing young and old adults (60-80 years of age) using a modified version of the previous task. In both experiments, intraindividual correlations of JOSLs with SM (gammas) indicated that delayed JOSLs were accurate predictors of future SM performance. There were no effects of age on gamma correlations of JOSLs with SM. Based on these results, although SM showed an age-related deficit, metacognitive predictions of SM did not show this same effect.

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Differential framing of situational strength: an individual differences-based conceptualization of work contexts

2012-05-14 , Wiita, Nathan Ellis

"Strong situations" have been shown to decrease behavioral variability, thereby attenuating the criterion-related validity of non-ability individual differences for criteria such as job performance (Barrick&Mount, 1993; Meyer, Dalal,&Bonaccio, 2009). However, it has been suggested that individuals, based on individual differences in implicit motives, may impute discrepant psychological meaning to social stimuli like situational strength--a process sometimes known as differential framing (James&McIntyre, 1996). If different psychological interpretations are attached to strong situation stimuli (e.g., Meyer, Dalal,&Hermida, 2010), an interesting behavioral "double-edged sword" is possible. On the one hand, behaviors pertinent to "primary criteria" (i.e., criteria for which external situational influences and pressures lead to targeted behavioral homogeneity) may occur among those who would not normally engage in them. But, at the same time, behaviors pertinent to "secondary criteria" (i.e., unintended, unforeseen, and potentially reactionary behaviors and/or attitudes) might also increase for some individuals (i.e., those with certain implicit motive characteristics). In other words, high situational strength may simultaneously constrain behavioral variability in primary criteria while serving as a stimulus for differential framing, thereby expanding variability on secondary criteria. The purpose of the present dissertation was twofold: 1) to explore the degree to which situational strength is differentially framed, and 2) to ascertain how the differential framing of situational strength may lead to unintended secondary outcomes. Study 1 findings indicate that, to a partial extent, situational strength is differentially framed by individuals with different implicit motives. Study 2 findings are largely consistent with extant situational strength theory, though partially inconsistent with study predictions.

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An analysis of the item characteristics of the conditional reasoning test of aggression

2012-11-12 , DeSimone, Justin Angermeier

This dissertation employs modern psychometric techniques to estimate the item characteristics of the Conditional Reasoning Test of Aggression (CRT-A) and three related subscales. Using a sample size of 5,511 respondents, this dissertation provides an accurate assessment of the capability of the CRT-A to measure latent aggression. Additionally, a differential item functioning analysis compares student and applied samples. Results suggest that 21 of the 22 CRT-A items work as intended for the measurement of aggression and all 22 of the CRT-A items are good indicators of their respective factor subscales. Information curves indicate that the CRT-A is best suited for use with individuals who are high on latent aggression.

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Person and professional program determinants of health provider student attitudes toward inter-professional teamwork

2012-08-06 , Kerry, Matthew James

Health provider student characteristics and professional program were evaluated as predictors of attitudes toward inter-professional (IP) teams. Sixteen months after completing a self-report battery of demographic and non-ability trait measures, participants completed a second survey (N = 213), assessing components of attitudes toward IP teams. Non-ability traits showed comparable within-program predictive validities for affective reactions toward IP behavior. Additionally, results indicated the incremental predictive validity of trait Dominance and Motivational Inter-professional Team Intelligence, over professional program, for IP attitudes and affective reactions toward IP behavior, respectively. The independent, relative, and joint roles of non-ability individual differences and professional program as determinants of IP training outcomes are discussed.

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Effects of affective states on driver situation awareness and adaptive mitigation interfaces: focused on anger

2012-07-03 , Jeon, Myounghoon

Research has suggested that affective states have critical effects on various cognitive processes and performance. Evidence from driving studies has also emphasized the importance of driver situation awareness (Endsley, 1995b) for driving performance and safety. However, to date, no research has investigated the relationship between affective effects and driver situation awareness. Two studies examined the relationship between a driver's affective states and situation awareness. In Experiment 1, 30 undergraduates drove in a simulator after either anger or neutral affect induction. Results suggested that an induced angry state can degrade driver situation awareness and driving performance more than the neutral state. Interestingly, the angry state did not influence participants' perceived workload. Experiment 2 explored the possibilities of using an "attention deployment" emotion regulation strategy as an intervention for mitigating angry effects on driving, via an adaptive speech-based system. 60 undergraduates drove the same scenario as in Experiment 1 after affect induction with different intervention conditions: anger with no sound; anger with the ER system: directive/ command style emotion regulation messages; anger with the SA system: suggestive/ notification style situation awareness prompts; or neutral with no sound. Results showed that both speech-based systems can not only enhance driver situation awareness and driving performance, but also reduce the anger level and perceived workload. Participants rated the ER system as more effective, but they rated the SA system as less annoying and less authoritative than the ER system. Based on the results of Experiment 2, regression models were constructed between a driver's affective states and driving performance, being mediated by situation awareness (full mediation for speeding and partial mediation for collision). These results allow researchers to construct a more detailed driver behavior model by showing how an affective state can influence driver situation awareness and performance. The practical implications of this research include the use of situation awareness prompts as a possible strategy for mitigating affective effects, for the design of an affect detection and mitigation system for drivers.

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Theoretical development and empirical examination of the nomological network of off-job reactivity to daily occupational stressors

2012-10-23 , Calderwood, Charles Coleman

A theory of off-job reactivity to daily work stress which encompasses the prediction of levels of reactivity from specific daily occupational stressors and personality traits, and outcomes of state and trait off-job reactivity, is presented and empirically tested. Despite decades of research linking negative spillover to maladaptive work and non-work outcomes, multidimensional studies of manifestations of spillover are rare. While investigators have increasingly recognized that spillover correlates tend to be associated with greater off-job physiological stress responses (Meijman, Mulder, Van Dormolen,&Cremer, 1992), no attempt has been made to incorporate off-job reactivity to daily stress within a multidimensional framework of negative work to non-work spillover. The overarching goal of this dissertation is to develop a model of off-job reactivity to daily occupational stress, comprising cognitive, affective, and behavioral indicators of negative work to non-work spillover. An empirical study is presented in which 75 nurses (N = 75) reported their exposure to different categories of daily work stress and provided measurements of off-job reactivity and anticipated outcomes during their off-job time for four work days. Select personality traits, work characteristics, and trait-level outcome variables were measured via an at-home questionnaire prior to the daily survey period. Empirical validation was obtained for a three-facet, higher-order factor model of off-job reactivity. Negative interpersonal interactions and situational constraints were supported as daily stressor predictors of state off-job reactivity, while trait negative affect and abusive supervision were supported as predictors of this state-level outcome. Elevated off-job reactivity was associated with several maladaptive outcomes, including diminished subjective well-being, elevated work to non-work conflict, greater somatic complaint frequency, and reduced off-job recovery activity pursuit. Implications of these findings for theoretical models of work - non-work relationships, the relative contribution of predictors and outcomes of off-job reactivity, and practical applications of the results of this dissertation are discussed.

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A generalized partial credit FACETS model for investigating order effects in self-report personality data

2012-07-05 , Hayes, Heather

Despite its convenience, the process of self-report in personality testing can be impacted by a variety of cognitive and perceptual biases. One bias that violates local independence, a core criterion of modern test theory, is the order effect. In this bias, characteristics of an item response are impacted not only by the content of the current item but also the accumulated exposure to previous, similar-content items. This bias is manifested as increasingly stable item responses for items that appear later in a test. Previous investigations of this effect have been rooted in classical test theory (CTT) and have consistently found that item reliabilities, or corrected item-total score correlations, increase with the item's serial position in the test. The purpose of the current study was to more rigorously examine order effects via item response theory (IRT). To this end, the FACETS modeling approach (Linacre, 1989) was combined with the Generalized Partial Credit model (GPCM; Muraki, 1992) to produce a new model, the Generalized Partial Credit FACETS model (GPCFM). Serial position of an item serves as a facet that contributes to the item response, not only via its impact on an item's location on the latent trait continuum, but also its discrimination. Thus, the GPCFM differs from previous generalizations of the FACETS model (Wang&Liu, 2007) in that the item discrimination parameter is modified to include a serial position effect. This parameter is important because it reflects the extent to which the purported underlying trait is represented in an item score. Two sets of analyses were conducted. First, a simulation study demonstrated effective parameter recovery, though measurements of error were impacted by sample size for all parameters, test length for trait level estimates, and the size of the order effect for trait level estimates, and an interaction between sample size and test length for item discrimination. Secondly, with respect to real self-report personality data, the GPCFM demonstrated good fit as well as superior fit relative to competing, nested models while also identifying order effects in some traits, particularly Neuroticism, Openness, and Agreeableness.

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Comprehension of health risk probabilities: the roles of age, numeracy, format, and mental representation

2012-07-02 , Fausset, Cara Bailey

Probabilities, an essential dimension of risk communication, can be presented in various formats including frequencies (e.g., 1 in 10), percentages (e.g., 10%), or verbal phrases (e.g., unlikely); the literature is mixed concerning which format best supports comprehension. Additionally, it is not well understood how people who vary in their level of numeracy understand those probabilities. The goal of the present three-phase within-participant study was to understand how the factors of format and numeracy influence comprehension and mental representations of probabilities for younger and older adults. Overall, the results of this research clearly indicated that comprehension and mental representation of health risk probabilities are influenced by format, age, and numeracy. To best support comprehension and comparison of health risk probabilities for younger adults and healthy older adults with varying numeracy, percent format should be used.

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