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Papers by Marc Scott
Journal of Educational and Behavioral …, 2005
A set of discrete-time methods for competing risks event history analysis is presented. The appro... more A set of discrete-time methods for competing risks event history analysis is presented. The approach used is accessible to the practitioner and the article describes the strengths, weaknesses, and interpretation of both exploratory and model-based tools. These techniques are applied to the impact of “nontraditional” enrollment features (working, stopout, and delayed enrollment) on competing outcomes of sub-baccalaureate enrollment (degree attainment, transfer, and dropout). In this setting, model selection, estimation, and comparative inference are discussed and more general guidelines for each stage of analysis are provided. Substantively, the study finds that nontraditional enrollment features are associated with dramatic changes in expected outcomes.
Sleep, 2006
To develop and demonstrate the utility of measures of sleep continuity based on survival analysis... more To develop and demonstrate the utility of measures of sleep continuity based on survival analysis techniques. Retrospective. University sleep laboratory. Anonymous nocturnal polysomnograms from 10 normal subjects, 10 subjects with mild sleep disordered breathing (SDB) (apnea-hypopnea index [AHI], 15-30/hr), and 10 subjects with moderate/severe SDB (AHI > 30/hr). N/A. Hypnograms were analyzed to measure the lengths of episodes of contiguous sleep and processed using several common survival analysis techniques. Using separate survival curves for each group to describe the durations of continuous epochs of sleep (sleep run lengths), statistically significant differences were found between all groups (p < .001) as well as between the normal and mild SDB groups (p < .001), suggesting differences in the stability of sleep. Using survival regression techniques applied separately to each subject, statistically significant differences were found among all three groups (p < .001) ...
The SAGE Handbook of Multilevel Modeling, 2013
SSRN Electronic Journal, 2000
... Mark S. Handcock Pennsylvania State University Marc A. Scott Institute on Education and the E... more ... Mark S. Handcock Pennsylvania State University Marc A. Scott Institute on Education and the Economy January 7, 1999 ... NLS for this purpose: Monks and Pizer (1998) compare two cohorts of young men and find a significant increase in job instability between 1971 and 1990. ...
Child development, Jan 3, 2014
A considerable amount of social identity research has focused on race and racial identity, while ... more A considerable amount of social identity research has focused on race and racial identity, while gender identity, particularly among Black adolescents, remains underexamined. The current study used survey data from 183 Black adolescent males (13-16 years old) to investigate the development and relation between racial and gender identity centrality and private regard, and how these identities impact adjustment over time. It was found that dimensions of racial and gender identity were strongly correlated. Levels of racial centrality increased over time while gender centrality, and racial and gender private regard declined. In addition, racial and gender identity uniquely contributed to higher levels of psychological well-being and academic adjustment. These findings are discussed within the context of existing identity theories and intersectionality theory.
Journal of Educational and Behavioral …, 2005
A set of discrete-time methods for competing risks event history analysis is presented. The appro... more A set of discrete-time methods for competing risks event history analysis is presented. The approach used is accessible to the practitioner and the article describes the strengths, weaknesses, and interpretation of both exploratory and model-based tools. These techniques are applied to the impact of “nontraditional” enrollment features (working, stopout, and delayed enrollment) on competing outcomes of sub-baccalaureate enrollment (degree attainment, transfer, and dropout). In this setting, model selection, estimation, and comparative inference are discussed and more general guidelines for each stage of analysis are provided. Substantively, the study finds that nontraditional enrollment features are associated with dramatic changes in expected outcomes.
Sleep, 2006
To develop and demonstrate the utility of measures of sleep continuity based on survival analysis... more To develop and demonstrate the utility of measures of sleep continuity based on survival analysis techniques. Retrospective. University sleep laboratory. Anonymous nocturnal polysomnograms from 10 normal subjects, 10 subjects with mild sleep disordered breathing (SDB) (apnea-hypopnea index [AHI], 15-30/hr), and 10 subjects with moderate/severe SDB (AHI > 30/hr). N/A. Hypnograms were analyzed to measure the lengths of episodes of contiguous sleep and processed using several common survival analysis techniques. Using separate survival curves for each group to describe the durations of continuous epochs of sleep (sleep run lengths), statistically significant differences were found between all groups (p < .001) as well as between the normal and mild SDB groups (p < .001), suggesting differences in the stability of sleep. Using survival regression techniques applied separately to each subject, statistically significant differences were found among all three groups (p < .001) ...
The SAGE Handbook of Multilevel Modeling, 2013
SSRN Electronic Journal, 2000
... Mark S. Handcock Pennsylvania State University Marc A. Scott Institute on Education and the E... more ... Mark S. Handcock Pennsylvania State University Marc A. Scott Institute on Education and the Economy January 7, 1999 ... NLS for this purpose: Monks and Pizer (1998) compare two cohorts of young men and find a significant increase in job instability between 1971 and 1990. ...
Child development, Jan 3, 2014
A considerable amount of social identity research has focused on race and racial identity, while ... more A considerable amount of social identity research has focused on race and racial identity, while gender identity, particularly among Black adolescents, remains underexamined. The current study used survey data from 183 Black adolescent males (13-16 years old) to investigate the development and relation between racial and gender identity centrality and private regard, and how these identities impact adjustment over time. It was found that dimensions of racial and gender identity were strongly correlated. Levels of racial centrality increased over time while gender centrality, and racial and gender private regard declined. In addition, racial and gender identity uniquely contributed to higher levels of psychological well-being and academic adjustment. These findings are discussed within the context of existing identity theories and intersectionality theory.