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• 1. [Article] The Study on global AGEing and adult health (SAGE): Body Composition Measures among Ageing Populations

  49 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Arts, Spring 2015...

  Citation × Citation Citation Abstract Copy Title: The Study on global AGEing and adult health (SAGE): Body Composition Measures among Ageing Populations Author: Wong, Austin Alexander Year: 2015 49 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Arts, Spring 2015. Title: The Study on global AGEing and adult health (SAGE): Body Composition Measures among Ageing Populations Author: Wong, Austin Alexander Year: 2015 49 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Arts, Spring 2015. Close

• 2. [Article] Adapting and Validating a Parent-Completed Assessment: A Cross-Cultural Study of the Ages & Stages Questionnaires: INVENTORY in China and the United States

  The Chinese government has announced the 2013 Guidelines for developing a national system for early detection of disability among children under 6 years of age. However, given limited resources, challenges ...

  Citation × Citation Citation Abstract Copy Title: Adapting and Validating a Parent-Completed Assessment: A Cross-Cultural Study of the Ages & Stages Questionnaires: INVENTORY in China and the United States Author: Xie, Huichao Year: 2016 The Chinese government has announced the 2013 Guidelines for developing a national system for early detection of disability among children under 6 years of age. However, given limited resources, challenges exist with developmental measures required in the 2013 Guidelines. In order to meet the needs for a more accurate and cost-efficient measure for developmental assessment, the Ages & Stages Questionnaires:INVENTORY was translated into Simplified Chinese, and validated on a regional sample of 812 Chinese children ages from 1-25 months. Psychometric properties were examined; data from previous studies on the ASQ:INVENTORY in the U.S. were compared to identify differences between the two countries. Results indicated that the Chinese ASQ:INVENTORY was an instrument with sufficient internal consistency, reliability and validity. It was well accepted by parents and professionals in China. Findings suggested that the Chinese ASQ:INVENTORY provides a promising alternative measure for screening and diagnosing developmental delays in young children in China. Implications for future research and implementation are discussed. Title: Adapting and Validating a Parent-Completed Assessment: A Cross-Cultural Study of the Ages & Stages Questionnaires: INVENTORY in China and the United States Author: Xie, Huichao Year: 2016 The Chinese government has announced the 2013 Guidelines for developing a national system for early detection of disability among children under 6 years of age. However, given limited resources, challenges exist with developmental measures required in the 2013 Guidelines. In order to meet the needs for a more accurate and cost-efficient measure for developmental assessment, the Ages & Stages Questionnaires:INVENTORY was translated into Simplified Chinese, and validated on a regional sample of 812 Chinese children ages from 1-25 months. Psychometric properties were examined; data from previous studies on the ASQ:INVENTORY in the U.S. were compared to identify differences between the two countries. Results indicated that the Chinese ASQ:INVENTORY was an instrument with sufficient internal consistency, reliability and validity. It was well accepted by parents and professionals in China. Findings suggested that the Chinese ASQ:INVENTORY provides a promising alternative measure for screening and diagnosing developmental delays in young children in China. Implications for future research and implementation are discussed. Close

• 3. [Article] Response: Commentary: Greater emotional gain from giving in older adults: Age-related positivity bias in charitable giving

  3 pages

  Citation × Citation Citation Abstract Copy Title: Response: Commentary: Greater emotional gain from giving in older adults: Age-related positivity bias in charitable giving Author: Bjalkebring, Par, Vastfjall, Daniel, Dickert, Stephan, Slovic, Paul Year: 2017, 2016 3 pages Title: Response: Commentary: Greater emotional gain from giving in older adults: Age-related positivity bias in charitable giving Author: Bjalkebring, Par, Vastfjall, Daniel, Dickert, Stephan, Slovic, Paul Year: 2017, 2016 3 pages Close

• 4. [Article] Same-Sex Sexual Behavior in America

  This dissertation examines the relationship between same-sex sexual behavior and Age, Period, and Birth Cohort through an analysis of the General Social Survey (GSS). The GSS has undertaken 14 rounds of ...

  Citation × Citation Citation Abstract Copy Title: Same-Sex Sexual Behavior in America Author: Appleby, Keith Year: 2012, 2014 This dissertation examines the relationship between same-sex sexual behavior and Age, Period, and Birth Cohort through an analysis of the General Social Survey (GSS). The GSS has undertaken 14 rounds of data collection between 1988 and 2010 in which questions on sexual behavior have been administered (n=33,212, 14,591 Males, 18,621 Females). Logistic regression models were employed in order to parse out the effects of Age, Period, and Birth Cohort, along with other explanatory variables, to determine the likelihood of the reporting same-sex sexual behavior. It was found that among women, but not men, there is a significant birth cohort effect on same-sex sexual behavior. Among, men, but not women, there was significant period effect on same-sex sexual behavior in Time 3 of the study. Among both men and women, there was a significant curvilinear relationship between age and the reporting of same-sex sexual behavior. Shifts in cultural values and methodological issues may explain the birth cohort and period effects on same-sex sexual behavior. The idea of the "sexual narrative" is introduced to explain the curvilinear age effect on same-sex sexual behavior. Title: Same-Sex Sexual Behavior in America Author: Appleby, Keith Year: 2012, 2014 This dissertation examines the relationship between same-sex sexual behavior and Age, Period, and Birth Cohort through an analysis of the General Social Survey (GSS). The GSS has undertaken 14 rounds of data collection between 1988 and 2010 in which questions on sexual behavior have been administered (n=33,212, 14,591 Males, 18,621 Females). Logistic regression models were employed in order to parse out the effects of Age, Period, and Birth Cohort, along with other explanatory variables, to determine the likelihood of the reporting same-sex sexual behavior. It was found that among women, but not men, there is a significant birth cohort effect on same-sex sexual behavior. Among, men, but not women, there was significant period effect on same-sex sexual behavior in Time 3 of the study. Among both men and women, there was a significant curvilinear relationship between age and the reporting of same-sex sexual behavior. Shifts in cultural values and methodological issues may explain the birth cohort and period effects on same-sex sexual behavior. The idea of the "sexual narrative" is introduced to explain the curvilinear age effect on same-sex sexual behavior. Close

• 5. [Article] Parent-Completed Developmental Screening: Validity, Reliability and Utility of the 6-Year Ages and Stages Questionnaire

  The psychometric properties of a parent-completed developmental questionnaire for children at 6 years of age were investigated. Currently, few developmental screening instruments for 6-year-old children ...

  Citation × Citation Citation Abstract Copy Title: Parent-Completed Developmental Screening: Validity, Reliability and Utility of the 6-Year Ages and Stages Questionnaire Author: Singh, Ajay Year: 2015 The psychometric properties of a parent-completed developmental questionnaire for children at 6 years of age were investigated. Currently, few developmental screening instruments for 6-year-old children have been validated, and most available instruments are designed to be completed by teachers or professionals, who may not witness an optimal sample of child behavior. Thus a screening tool with robust psychometric properties is needed that can be completed by parents or caregivers who see the child across settings and time. A total of 169 children participated in this research. Data collection included online and paper completion during well child visits, in clinics, at preschool programs, and in parents' homes. A random subsample was asked to participate in reliability and convergent validity studies. Cronbach's alpha coefficient was used to measure internal consistency reliability. Results indicated a Cronbach alpha of agreement with the Child Development Inventory was used. A Confirmatory Factor Analysis with categorical data confirmed the 6-Year Ages and Stages Questionnaire domains, e.g., communication, personal social, fine motor, gross motor, and problem solving. Limitations of the current study and directions for future research are discussed. Title: Parent-Completed Developmental Screening: Validity, Reliability and Utility of the 6-Year Ages and Stages Questionnaire Author: Singh, Ajay Year: 2015 The psychometric properties of a parent-completed developmental questionnaire for children at 6 years of age were investigated. Currently, few developmental screening instruments for 6-year-old children have been validated, and most available instruments are designed to be completed by teachers or professionals, who may not witness an optimal sample of child behavior. Thus a screening tool with robust psychometric properties is needed that can be completed by parents or caregivers who see the child across settings and time. A total of 169 children participated in this research. Data collection included online and paper completion during well child visits, in clinics, at preschool programs, and in parents' homes. A random subsample was asked to participate in reliability and convergent validity studies. Cronbach's alpha coefficient was used to measure internal consistency reliability. Results indicated a Cronbach alpha of agreement with the Child Development Inventory was used. A Confirmatory Factor Analysis with categorical data confirmed the 6-Year Ages and Stages Questionnaire domains, e.g., communication, personal social, fine motor, gross motor, and problem solving. Limitations of the current study and directions for future research are discussed. Close

• 6. [Article] Relationships Among Kidney Function, Systemic Inflammation, and Age in the Indigenous Shuar of Ecuador: The Shuar Health and Life History Project

  39 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Arts, Spring 2017...

  Citation × Citation Citation Abstract Copy Title: Relationships Among Kidney Function, Systemic Inflammation, and Age in the Indigenous Shuar of Ecuador: The Shuar Health and Life History Project Author: Hallett, Eliza Marie Year: 2017 39 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Arts, Spring 2017 Title: Relationships Among Kidney Function, Systemic Inflammation, and Age in the Indigenous Shuar of Ecuador: The Shuar Health and Life History Project Author: Hallett, Eliza Marie Year: 2017 39 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Arts, Spring 2017 Close

• 7. [Article] Relationships and Personality Trait Levels and Change in Adulthood

  How does the role of parenting and marriage relate to personality development over three age decades in adulthood? To examine this, participants (T1AgeRange = 20 to 55) self-reported on their personality ...

  Citation × Citation Citation Abstract Copy Title: Relationships and Personality Trait Levels and Change in Adulthood Author: Tackman, Allison Year: 2016 How does the role of parenting and marriage relate to personality development over three age decades in adulthood? To examine this, participants (T1AgeRange = 20 to 55) self-reported on their personality traits (at the domain and aspect level) and investments in their children and relationship partners in up to four annual measurement occasions. Consistent with the predictions of social investment theory, being a parent (NParent = 260; NNever-Parent = 359) or being married (NMarried = 341; NNever-Married = 255) was associated with a more mature personality, especially in terms of agreeableness. The magnitude of differences between parents and never parents (and married and never married participants) in personality trait levels differed as a function of age decade, and for some of the personality traits, the pattern of level differences across the three age decades were explained by different rates of change among parents and never parents (and married and never married participants). Most notable, the difference between parents and never parents in levels of agreeableness and its politeness aspect that emerged during the 30s age decade (and continued into the 40s age decade) was due to the greater increase among parents in these traits from the late 20s to the early 30s. Parents’ investment in their children and married participants’ investment in their spouse was related to personality trait levels but not personality trait change, which is inconsistent with the predictions of social investment theory. Overall, these results indicate the importance for future research to focus on both the acute effects of an event and the ongoing effects of a role on personality development. Title: Relationships and Personality Trait Levels and Change in Adulthood Author: Tackman, Allison Year: 2016 How does the role of parenting and marriage relate to personality development over three age decades in adulthood? To examine this, participants (T1AgeRange = 20 to 55) self-reported on their personality traits (at the domain and aspect level) and investments in their children and relationship partners in up to four annual measurement occasions. Consistent with the predictions of social investment theory, being a parent (NParent = 260; NNever-Parent = 359) or being married (NMarried = 341; NNever-Married = 255) was associated with a more mature personality, especially in terms of agreeableness. The magnitude of differences between parents and never parents (and married and never married participants) in personality trait levels differed as a function of age decade, and for some of the personality traits, the pattern of level differences across the three age decades were explained by different rates of change among parents and never parents (and married and never married participants). Most notable, the difference between parents and never parents in levels of agreeableness and its politeness aspect that emerged during the 30s age decade (and continued into the 40s age decade) was due to the greater increase among parents in these traits from the late 20s to the early 30s. Parents’ investment in their children and married participants’ investment in their spouse was related to personality trait levels but not personality trait change, which is inconsistent with the predictions of social investment theory. Overall, these results indicate the importance for future research to focus on both the acute effects of an event and the ongoing effects of a role on personality development. Close

• 8. [Article] Age-related differences in adaptive decision making: Sensitivity to expected value in risky choice

  9 pages

  Citation × Citation Citation Abstract Copy Title: Age-related differences in adaptive decision making: Sensitivity to expected value in risky choice Author: Levin, Irwin, Weller, Joshua, Pederson, Ashley, Harshman, Lyndsay Year: 2017, 2007 9 pages Title: Age-related differences in adaptive decision making: Sensitivity to expected value in risky choice Author: Levin, Irwin, Weller, Joshua, Pederson, Ashley, Harshman, Lyndsay Year: 2017, 2007 9 pages Close

• 9. [Article] Greater Emotional Gain from Giving in Older Adults: Age-Related Positivity Bias in Charitable Giving

  8 pages

  Citation × Citation Citation Abstract Copy Title: Greater Emotional Gain from Giving in Older Adults: Age-Related Positivity Bias in Charitable Giving Author: Bjalkebring, Par, Vastfjall, Daniel, Dickert, Stephan, Slovic, Paul Year: 2017, 2016 8 pages Title: Greater Emotional Gain from Giving in Older Adults: Age-Related Positivity Bias in Charitable Giving Author: Bjalkebring, Par, Vastfjall, Daniel, Dickert, Stephan, Slovic, Paul Year: 2017, 2016 8 pages Close

• 10. [Article] The Study on Global AGEing and Adult Health (SAGE): Depression and Body Composition Among Aging Populations

  38 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Science, Spring 2...

  Citation × Citation Citation Abstract Copy Title: The Study on Global AGEing and Adult Health (SAGE): Depression and Body Composition Among Aging Populations Author: Olson, William John Year: 2014 38 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Science, Spring 2014. Title: The Study on Global AGEing and Adult Health (SAGE): Depression and Body Composition Among Aging Populations Author: Olson, William John Year: 2014 38 pages. A thesis presented to the Department of Biology and the Clark Honors College of the University of Oregon in partial fulfillment of the requirements for degree of Bachelor of Science, Spring 2014. Close