Factors of the Geriatric Depression Scale that may Distinguish between Four Cognitive Diagnostic Groups: Normal, Mild Cognitive Impairment, Dementia of the Alzheimer's Type, and Vascular Dementia (open access)

Factors of the Geriatric Depression Scale that may Distinguish between Four Cognitive Diagnostic Groups: Normal, Mild Cognitive Impairment, Dementia of the Alzheimer's Type, and Vascular Dementia

The purpose of the current study was to explore the relationship between cognitive status and depression in a sample of geriatric patients. Participants included 282 geriatric patients ranging in age from 65 to 96 years who were classified according to diagnosis as: DAT, VaD, MCI, and Norm. All were referred for neurocognitive testing from the Geriatric Assessment Program (GAP) at the University of North Texas Health Science Center (UNTHSC) in Fort Worth, Texas. This study sought to identify factor structures for two versions of the GDS using a geriatric sample of cognitively impaired and intact patients. It then compared these factors to each other to determine whether the GDS-15 is truly a shorter version of the GDS-30. These were then compared to a previously determined factor structure. This study explored whether the four-factors of the GDS-30 are able to differentiate cognitive diagnostic groups. Further, this study sought to identify whether the severity of cognitive decline impacted GDS factor score for each of the cognitively impaired groups. Results revealed a two-factor model of the GDS - 15 and a four-factor model with the GDS - 30. The GDS-15 factors did not differ from the first two factors of the GDS-30. Comparison …
Date: December 2009
Creator: Cornett, Patricia F.
System: The UNT Digital Library
Negative affect and positive symptoms of psychosis. (open access)

Negative affect and positive symptoms of psychosis.

The current study utilized structural equation modeling (SEM) to examine the factor-to-factor relations and temporal associations between disturbances in negative affect (NA) and positive symptoms of psychosis (PP). Data were drawn from a large, public-domain data set (MacArthur Violence Risk Assessment Study). A dimensional approach was used to conceptualize and identify latent variables of NA (depression, anxiety, and guilt) and PP (hallucinations, delusions, and thought disorder) among individuals with a diagnosis of primary psychotic disorder. Results showed that anxiety, guilt, and depressed mood modeled an NA latent variable, and that hallucinations and unusual thought content modeled a PP latent variable. As predicted, results revealed strong, significant cross-sectional (synchronous) associations between NA and PP at each measured time-frame, suggesting that NA and PP occurred concurrently within the sample. Contrary to predictions, no significant cross-lagged effect between NA and PP was identified (10 weeks and 20 weeks respectively).
Date: December 2009
Creator: Crutchfield, Audra
System: The UNT Digital Library
Bidirectional Effects Between Engaged Lifestyle and Cognition in Later Life: Exploring the Moderation Hypothesis for Personality Variables. (open access)

Bidirectional Effects Between Engaged Lifestyle and Cognition in Later Life: Exploring the Moderation Hypothesis for Personality Variables.

Longitudinal data (N = 263) was used to investigate the bidirectional relationship between engagement (engaged lifestyle activities) and cognition (crystallized & fluid intelligence). Extroversion and openness to experience were also tested as moderators of the relationship between engagement and cognition. Results showed that the relationship between engagement at Wave 1 and cognition at Wave 2 did not differ from the relationship between cognition at Wave 1 and engagement at Wave 2. Testing for moderation with regression indicated that neither extroversion nor openness was moderating the relationship between engagement and cognition in either direction. Structural equation models provided further summary evidence that the relationships among engagement at Wave 1, extroversion, openness, and cognition at Wave 2 were not strong. However, a strong limitation to these results was the measurement error associated with a new measure of engagement.
Date: December 2009
Creator: Starkweather, Jonathan
System: The UNT Digital Library
Perceived Racial Discrimination and Psychiatric Outcomes among Asian Americans (open access)

Perceived Racial Discrimination and Psychiatric Outcomes among Asian Americans

The present study related generational status, family dynamics, and perceptions of racial discrimination (PRD) to acute psychiatric outcomes among a nationally representative Asian American sample (N = 2095), using data from the National Latino and Asian American Study (NLAAS). High self-reports of PRD were correlated with endorsement of clinical depression and suicidality as predicted. Regression analyses suggested that high PRD, low family cohesion, and high family conflict served as significant predictors of poor mental health independently, but moderator hypotheses predicting the interaction of these factors were not supported. Clinical and research implications are provided.
Date: December 2009
Creator: Varghese, Anita
System: The UNT Digital Library
A test of an etiological model: The development of disordered eating in Division-I university female gymnasts and swimmers/divers. (open access)

A test of an etiological model: The development of disordered eating in Division-I university female gymnasts and swimmers/divers.

Certain sport environments may contribute to the development of disordered eating and those that heavily emphasize weight and/or body shape can be particularly damaging to an athlete's body image, self-concept, and eating behaviors. In particular, female athletes in collegiate sports are at a greater risk for engaging in unhealthy behaviors because they face both societal pressures from Western culture to be thin, in addition to sport pressures that focus on performance and appearance. According to the American Medical Association almost half of American women are trying to lose weight, illustrating that societal pressures alone to be thin and attractive can influence the development of disordered eating. Athletes are exposed to the same sociocultural pressures as their nonathlete counterparts, and would be expected to have similar feelings about their bodies as women in general. Add subsequent pressures like team "weigh-ins," coaches' body comp preferences, judges' critiques, revealing attire, and endurance/strength demands, and the stage is set for the development of disordered eating. In the current study, participants were 414 Division-I female gymnasts, swimmers/divers, and they completed self-report measures assessing sport pressures, body satisfaction and disordered eating behavior to test Petrie & Greenleaf's etiological model. Results indicate that sport pressures do lead …
Date: December 2009
Creator: Anderson, Carlin Mahan
System: The UNT Digital Library
A Longitudinal Examination of Factors Associated with Custodial Grandparenting: A Test of Moderated Mediation (open access)

A Longitudinal Examination of Factors Associated with Custodial Grandparenting: A Test of Moderated Mediation

The purpose of this study was to explore the following relationships: (a) how moderating factors (gender, age, ethnicity, social support, marital status, reason for role assumption and number of grandchildren in the home) can influence the mediating role of resiliency, and (b) how resiliency may mediate the negative effects of raising grandchildren (role demands, life disruptions, and difficulties with grandchildren) on grandparent adjustment over time. Resiliency was hypothesized to have the greatest effect on custodial grandparents who experienced the most stress (i.e., older, single, Caucasian males lacking social support and raising more than one grandchild). Mediation was assessed using structural equation modeling. Results indicated resilience mediated the relationship between role assumptions (i.e., role demands and life disruptions) and grandparent adjustment; however, resilience did not mediate the relationship between grandchild characteristics and grandparent adjustment. Due to the small number of custodial grandfathers (n = 14), non-married grandparents (n = 29), non-Caucasian grandparents (n = 10), the small number of grandparents who assumed the custodial role for less ambiguous reasons (n = 24), and the number of custodial grandparents with more than one grandchild residing in the home (n = 29) participating within the study, hierarchical multiple regressions were only conducted to …
Date: December 2009
Creator: Moske, Amanda Kay
System: The UNT Digital Library
Moderators of the sociocultural internalization-body dissatisfaction relationship among female undergraduates. (open access)

Moderators of the sociocultural internalization-body dissatisfaction relationship among female undergraduates.

The sociocultural model of eating pathology is an empirically-supported model explaining eating disorder etiology. The model poses that body dissatisfaction and subsequent eating pathology stems from the unrealistic standards formulated by Westernized society. Although the model has strong empirical support, variables within the model do not account for 100% of the variance in disordered eating. Thus, the current researcher attempted to explore potential moderating factors in the sociocultural model of eating disorders that may help to explain variance currently unaccounted for. In particular, the researcher focused on the relationship between sociocultural internalization and body dissatisfaction, given that this relationship has not been previously explored within the literature. Based on theoretical support, the researcher chose several potential variables to test, including perfectionism, neuroticism, body surveillance, and shame. Primary analyses tested each variable for moderating effects using hierarchical moderated regression, but no significant findings were shown. Results of post hoc analyses showed all variables had significant mediating effects, with the exception of self-oriented perfectionism. The discussion section addresses consistency with previous research, limitations of the present study, treatment implications and guidelines for future research.
Date: December 2009
Creator: Latimer-Kern, Kelsey M.
System: The UNT Digital Library