The Interface of Personality Processes and Cognitive Abilities: A Comparative Study of Elderly and Young Adults

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Although research has shown that the complex constructs of intelligence and personality are necessarily intertwined, studies exploring this issue in elderly individuals are rare. The importance attached to this interface in older adults becomes particularly clear in light of the debate over the cause and extent of age-related decrements in cognitive performance as well as whether such losses can be ameliorated or not, especially given societal shifts toward increased life expectancies. The present study explored the basis for shifts in personality-ability relationships in adulthood by comparing two samples of older adults, one of which was assessed in 1975 (N = 102, M age = 68.4), and the second of which was assessed in 1995 (N = 100, M age = 72.0), and a sample of younger adults (N = 100, M age = 21.8), also assessed in 1995. Each participant was administered the Holtzman Inkblot Technique and the Gf-Gc Sampler, a measure of crystallized (Gc) and fluid (Gf) abilities. LISREL analyses of both age-related and historical shifts in personality-ability relationships suggested that not only were such shifts associated with cohort differences as reflected in factor loading (lambda) differences between the older samples and the younger sample, as well as between …
Date: August 2000
Creator: O'Brien, Dina Paige Ragow
System: The UNT Digital Library

Prevalence of Undiagnosed Dissociative Disorders in an Inpatient Setting

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This study examined the prevalence of undiagnosed dissociative disorders in a sample of 201 adult patients admitted to a private psychiatric hospital in a major metropolitan city in the south-central United States, over an eight-month period. A screening measure, two blind structured interviews, and a blind clinical interview were employed. The lifetime prevalence of dissociate disorders among the interviewed subjects was 40.8%. More specifically, 7.5% were diagnosed with dissociative identity disorder, 15.4% with dissociative disorder not otherwise specified, 13.4% with dissociative amnesia, and 4.5% with depersonalization disorder. Dissociative fugue was not found in this sample. Cohen's kappa reliability coefficients were computed between the three interview measures, resulting in significant findings for the presence of dissociative identity disorder and dissociative disorder not otherwise specified versus no dissociative disorder. The Cohen's kappa reliability coefficients were as follows: DDIS-DES-T = 0.81; SCID-D-DES-T = 0.76; Clinician-DES-T = 0.74, DDIS-SCID-D = 0.74; DDIS-Clinician = 0.71, and SCID-D-Clinician = 0.56. A meeting was conducted at the end of all subject interviews to discuss discrepant findings between measures. Four additional sub-analyses were performed between dissociative and non-dissociative subjects on DSM-IV variables. Patients diagnosed with a dissociative disorder had higher rates of comorbid major depressive disorder, borderline personality …
Date: August 2000
Creator: Duffy, Colleen
System: The UNT Digital Library