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INITIAL VALIDATION OF AN OBSERVATIONAL MEASURE OF TEMPERAMENT IN PRESCHOOL-AGED CHILDREN
Title
INITIAL VALIDATION OF AN OBSERVATIONAL MEASURE OF TEMPERAMENT IN PRESCHOOL-AGED CHILDREN
Creator
Plumb, Nora
Date
2018, 2018-05
Description
Literature has shown that temperament predicts a range of childhood outcomes, including social competence, academic performance, and empathic...
Show moreLiterature has shown that temperament predicts a range of childhood outcomes, including social competence, academic performance, and empathic responsiveness. Temperament also has been consistently shown to be a risk factor for psychopathology (e.g., externalizing disorders, conduct problems, anxiety, and depression). Although there is general agreement on the definition of temperament, there are still aspects of this construct that are disputed (e.g., the specific traits involved and the degree to which they are stable across development). Moreover, researchers also have developed different strategies to assess this construct, specifically parent-report and direct observation, both of which have their limitations. Despite these limitations, very few measures temperament measures utilize ecologically valid observations in naturalistic settings. The purpose of this study was threefold. The first aim was to examine the construct validity of a newly-developed behavioral observation measure of temperament through confirmatory factor analysis (CFA). The second aim was to determine if the measure was invariant across age and gender. Finally, the third aim was to assess the measures’ convergent and predictive validity. This measure was administered to 796 children across three ages (i.e.,ages 4, 5, and 6). Results from the CFAs revealed that a four-factor structure was the best fit to the data at age 4, therefore supporting configural invariance across gender for that age group. Invariance testing also showed that the measure demonstrated metric, but not scalar, invariance across gender at age 4. Finally, this study found evidence for both convergent and predictive validity for this measure. Directions for future research are also discussed.
M.S. in Psychology, May 2018
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Factor Analysis of the Neurobehavioral Symptom Inventory in Veterans with Posttraumatic Stress Disorder
Title
Factor Analysis of the Neurobehavioral Symptom Inventory in Veterans with Posttraumatic Stress Disorder
Creator
Scimeca, Lauren
Date
2020
Description
The Neurobehavioral Symptom Inventory (NSI) is a widely used measure of postconcussive symptoms in veteran populations. Previous psychometric...
Show moreThe Neurobehavioral Symptom Inventory (NSI) is a widely used measure of postconcussive symptoms in veteran populations. Previous psychometric studies used samples of veterans with mild Traumatic Brain Injury (mTBI) and high rates of comorbid Posttraumatic Stress Disorder (PTSD). The present study aims to determine the best-fitting factor structure of the NSI in veterans with PTSD and to evaluate the relationship between the best-fitting factor structure and the symptom clusters of PTSD. A confirmatory factor analysis (CFA) found that 4-factors had the best overall fit in veterans with PTSD. Correlational analyses found high rates of correspondence between the cognitive and affective factors of the NSI and the alterations in cognition and mood and hyperarousal symptom clusters of PTSD. The analyses reveal that symptoms of the NSI cluster in the same way in a sample of veterans with PTSD as they do in veterans with mTBI, suggesting that lingering postconcussive symptoms in veterans with PTSD are better characterized as non-specific generalized health symptoms on the NSI.
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