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Full-Text Articles in Psychology
Childhood Maltreatment And Suicidal Ideation: The Role Of Insecure Attachment, Alexithymia, And Negative Urgency., Surabhi Swaminath
Childhood Maltreatment And Suicidal Ideation: The Role Of Insecure Attachment, Alexithymia, And Negative Urgency., Surabhi Swaminath
Dissertations and Theses
Suicide is a significant cause of preventable death, especially among young adults. Survivors of childhood maltreatment are at heightened risk of experiencing suicidal ideation and following through on suicide-related thoughts. Insecure attachment, alexithymia, and impulsivity (negative urgency) are known risk factors for suicidal ideation. However, the combined role of these variables in association with suicidal ideation is not fully understood. The current study tested the role of insecure attachment, alexithymia, and negative urgency in the relationship between child maltreatment and ideation via a path model in young adults between 18 and 29 (N = 441). We hypothesized that maltreatment would …
Anhedonia And Impulsivity In College Alcohol Use: A Path Analysis, Sydney N. Stamatovich
Anhedonia And Impulsivity In College Alcohol Use: A Path Analysis, Sydney N. Stamatovich
Dissertations and Theses
This study tested a path model to explore whether different types of anhedonia are associated with alcohol use and problems via different types of impulsivity in 640 college students (ages 18-25). This study parsed anhedonia into four specific facets: consummatory and anticipatory anhedonia, and “recreational” and social anhedonia. Consummatory anhedonia (i.e., the “liking” of a reward) was hypothesized to be associated with alcohol use and problems via sensation seeking, a component of impulsivity where individuals tend to seek out rewarding, yet sometimes risky stimuli. Further, anticipatory anhedonia (i.e., the process of “looking forward to” or “wanting” a reward) was hypothesized …
Dimension Reduction On Measures Of Impulsivity, Christina T. Schulz
Dimension Reduction On Measures Of Impulsivity, Christina T. Schulz
Dissertations and Theses
The main focus of this study was twofold: the first purpose being the assessment of convergent validity on six different measures of impulsivity, and the second being a comparison of dimension reduction techniques for quantitative data. Results from a Principal Components Analysis (PCA) were compared with results from a novel dimension technique known as Local Linear Embedding (LLE). LLE is an analysis of dimension reduction for nonlinear, high dimensional data. By computing neighborhood preserving embeddings, LLE aims to map newly constructed coordinates into a global coordinate structure of a lower dimension. Past research using LLE has solely been conducted on …