Valgeir Thorvaldsson
Biographic Data
| ID | 6097673 |
|---|---|
| NAME | Valgeir Thorvaldsson |
| GIVEN NAMES | Valgeir |
| FAMILY NAME | Thorvaldsson |
| SIGNATURE | THORVALDSSON V |
| AFFILIATIONS | University of Gothenburg |
| ORCID | 0000-0002-1118-3194 |
| VERIFIED | Yes |
| TOTAL WORKS | 11 |
| TOTAL CITATIONS | 16 |
| AUTHOR COUNT | 11 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2006 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
Moderating effects of educational inequality on education polygenic scores, attained education and dementia-risk relationships
While education is among the most consistent predictors of cognitive health and dementia risk, it is unclear whether this reflects the benefits of schooling itself or other factors such as underlying genetic predispositions or family-based inequality. Further, the benefits of education to cognitive health may be dependent on larger structures of inequality. Using data from the IGEMS Consortium of over 4,500 twins from seven cohorts in the USA, Sw…
Testing the personality differentiation by intelligence hypothesis in a representative sample of Swedish hexagenerians
The Personality Differentiation by Intelligence Hypothesis (PDIH) predicts larger trait-variances, and smaller across-trait covariances for individuals with higher intelligence. We tested these predictions using multiple-group confirmatory factor analyses (MG-CFA), while controlling for the potential confound of systematic method variance related to reversed items using a correlated trait, correlated method (CTCM) approach. Participants between t…
Personality and reasoning ability during retirement age: Report from a Swedish population-based longitudinal study
We examined the association between personality and level and change in reasoning ability in a population-based sample of older adults (62–68 years) using a three-year annual follow-up longitudinal study design (HEARTS; N = 3851). Personality traits were measured using the Mini-IPIP scale and reasoning using a short form of Raven’s Matrices. Findings from a structural equation model, controlling for age, education, and sex, revealed that higher l…
Disentangling the Mechanisms of Retirement Adjustment: Determinants and Consequences of Subjective Well-Being
Retirement from work is a major life event requiring adaptation to new life circumstances. The resource-based dynamic model of retirement adjustment suggests that well-being will change due to changes in individual resources. In the present study, we test this hypothesis by investigating longitudinal and bidirectional associations between life satisfaction and perceived resources (i.e., self-esteem, autonomy, social support, self-rated physical h…
Changes in within- and between-person associations between basic psychological need satisfaction and well-being after retirement
Satisfaction of the basic psychological needs for autonomy, competence and relatedness is associated with higher well-being. However, little is known about change or stability in this association over the life span. We therefore investigated changes in the association between well-being and basic psychological need satisfaction in the retirement transition. Data was drawn from four waves of the Health, Aging, and Retirement Transitions in Sweden …
Can personality predict longitudinal study attrition? Evidence from a population-based sample of older adults
Changes in Life Satisfaction in the Retirement Transition: Interaction Effects of Transition Type and Individual Resources
The impact of retirement on well-being varies between individuals, but also within individuals over time. Type of transition and individual differences in resource capability are two factors likely to influence the retirement adjustment process, but we still lack in our understanding of the importance of these factors in relation to each other. The aim of this study was to investigate interaction effects of transition type and individual resource…
Better Cognition in New Birth Cohorts of 70 Year Olds, But Greater Decline Thereafter
These findings provide strong evidence for substantial birth cohort effects in cognition in older ages and emphasize the importance of life long environmental factors in shaping cognitive aging trajectories. Inferences from cognitive testing, and standardization of test scores, in elderly populations must take into account the substantial birth cohort differences
Coordinated Analysis of Age, Sex, and Education Effects on Change in MMSE Scores
OBJECTIVES: We describe and compare the expected performance trajectories of older adults on the Mini-Mental Status Examination (MMSE) across six independent studies from four countries in the context of a collaborative network of longitudinal studies of aging. A coordinated analysis approach is used to compare patterns of change conditional on sample composition differences related to age, sex, and education. Such coordination accelerates evalua…
Earwitnesses: The effect of type of vocal differences on correct identification and confidence accuracy
Individual voice and speech characteristics are important for earwitness identification. A target-absent line-up with six foils was used to analyse the influence of voice and speech features on recognition. To create ecologically valid conditions for voice recognition, the present study used voices in conversation in the target event and for the foils. The participants were particularly successful in rejecting the two voice foils that were most d…
Effects of Repeated Testing in a Longitudinal Age-Homogeneous Study of Cognitive Aging
Estimates of gains related to repeated test exposure (retest effects) and within-person cognitive changes are confounded in most longitudinal studies because of the nonindependent time structures underlying both processes. Recently developed statistical approaches rely on between-person age differences to estimate effects of repeated testing. This study, however, demonstrates how retest effects can be evaluated at the group level in an age-homoge…
Changes in Life Satisfaction in the Retirement Transition: Interaction Effects of Transition Type and Individual Resources
The impact of retirement on well-being varies between individuals, but also within individuals over time. Type of transition and individual differences in resource capability are two factors likely to influence the retirement adjustment process, but we still lack in our understanding of the importance of these factors in relation to each other. The aim of this study was to investigate interaction effects of transition type and individual resource…
Better Cognition in New Birth Cohorts of 70 Year Olds, But Greater Decline Thereafter
These findings provide strong evidence for substantial birth cohort effects in cognition in older ages and emphasize the importance of life long environmental factors in shaping cognitive aging trajectories. Inferences from cognitive testing, and standardization of test scores, in elderly populations must take into account the substantial birth cohort differences
Effects of Repeated Testing in a Longitudinal Age-Homogeneous Study of Cognitive Aging
Estimates of gains related to repeated test exposure (retest effects) and within-person cognitive changes are confounded in most longitudinal studies because of the nonindependent time structures underlying both processes. Recently developed statistical approaches rely on between-person age differences to estimate effects of repeated testing. This study, however, demonstrates how retest effects can be evaluated at the group level in an age-homoge…
Testing the personality differentiation by intelligence hypothesis in a representative sample of Swedish hexagenerians
The Personality Differentiation by Intelligence Hypothesis (PDIH) predicts larger trait-variances, and smaller across-trait covariances for individuals with higher intelligence. We tested these predictions using multiple-group confirmatory factor analyses (MG-CFA), while controlling for the potential confound of systematic method variance related to reversed items using a correlated trait, correlated method (CTCM) approach. Participants between t…
Disentangling the Mechanisms of Retirement Adjustment: Determinants and Consequences of Subjective Well-Being
Retirement from work is a major life event requiring adaptation to new life circumstances. The resource-based dynamic model of retirement adjustment suggests that well-being will change due to changes in individual resources. In the present study, we test this hypothesis by investigating longitudinal and bidirectional associations between life satisfaction and perceived resources (i.e., self-esteem, autonomy, social support, self-rated physical h…
Effects of Repeated Testing in a Longitudinal Age-Homogeneous Study of Cognitive Aging
Estimates of gains related to repeated test exposure (retest effects) and within-person cognitive changes are confounded in most longitudinal studies because of the nonindependent time structures underlying both processes. Recently developed statistical approaches rely on between-person age differences to estimate effects of repeated testing. This study, however, demonstrates how retest effects can be evaluated at the group level in an age-homoge…
Earwitnesses: The effect of type of vocal differences on correct identification and confidence accuracy
Individual voice and speech characteristics are important for earwitness identification. A target-absent line-up with six foils was used to analyse the influence of voice and speech features on recognition. To create ecologically valid conditions for voice recognition, the present study used voices in conversation in the target event and for the foils. The participants were particularly successful in rejecting the two voice foils that were most d…
Coordinated Analysis of Age, Sex, and Education Effects on Change in MMSE Scores
OBJECTIVES: We describe and compare the expected performance trajectories of older adults on the Mini-Mental Status Examination (MMSE) across six independent studies from four countries in the context of a collaborative network of longitudinal studies of aging. A coordinated analysis approach is used to compare patterns of change conditional on sample composition differences related to age, sex, and education. Such coordination accelerates evalua…
Better Cognition in New Birth Cohorts of 70 Year Olds, But Greater Decline Thereafter
These findings provide strong evidence for substantial birth cohort effects in cognition in older ages and emphasize the importance of life long environmental factors in shaping cognitive aging trajectories. Inferences from cognitive testing, and standardization of test scores, in elderly populations must take into account the substantial birth cohort differences
Changes in Life Satisfaction in the Retirement Transition: Interaction Effects of Transition Type and Individual Resources
The impact of retirement on well-being varies between individuals, but also within individuals over time. Type of transition and individual differences in resource capability are two factors likely to influence the retirement adjustment process, but we still lack in our understanding of the importance of these factors in relation to each other. The aim of this study was to investigate interaction effects of transition type and individual resource…
Can personality predict longitudinal study attrition? Evidence from a population-based sample of older adults
Disentangling the Mechanisms of Retirement Adjustment: Determinants and Consequences of Subjective Well-Being
Retirement from work is a major life event requiring adaptation to new life circumstances. The resource-based dynamic model of retirement adjustment suggests that well-being will change due to changes in individual resources. In the present study, we test this hypothesis by investigating longitudinal and bidirectional associations between life satisfaction and perceived resources (i.e., self-esteem, autonomy, social support, self-rated physical h…
Changes in within- and between-person associations between basic psychological need satisfaction and well-being after retirement
Satisfaction of the basic psychological needs for autonomy, competence and relatedness is associated with higher well-being. However, little is known about change or stability in this association over the life span. We therefore investigated changes in the association between well-being and basic psychological need satisfaction in the retirement transition. Data was drawn from four waves of the Health, Aging, and Retirement Transitions in Sweden …
Personality and reasoning ability during retirement age: Report from a Swedish population-based longitudinal study
We examined the association between personality and level and change in reasoning ability in a population-based sample of older adults (62–68 years) using a three-year annual follow-up longitudinal study design (HEARTS; N = 3851). Personality traits were measured using the Mini-IPIP scale and reasoning using a short form of Raven’s Matrices. Findings from a structural equation model, controlling for age, education, and sex, revealed that higher l…
Testing the personality differentiation by intelligence hypothesis in a representative sample of Swedish hexagenerians
The Personality Differentiation by Intelligence Hypothesis (PDIH) predicts larger trait-variances, and smaller across-trait covariances for individuals with higher intelligence. We tested these predictions using multiple-group confirmatory factor analyses (MG-CFA), while controlling for the potential confound of systematic method variance related to reversed items using a correlated trait, correlated method (CTCM) approach. Participants between t…
Moderating effects of educational inequality on education polygenic scores, attained education and dementia-risk relationships
While education is among the most consistent predictors of cognitive health and dementia risk, it is unclear whether this reflects the benefits of schooling itself or other factors such as underlying genetic predispositions or family-based inequality. Further, the benefits of education to cognitive health may be dependent on larger structures of inequality. Using data from the IGEMS Consortium of over 4,500 twins from seven cohorts in the USA, Sw…
Psychology (10 works) · Medicine (8 works) · Developmental psychology (6 works) · Cognition (5 works) · Health disparities and outcomes (5 works) · Population (5 works) · Gerontology (4 works) · Longitudinal study (4 works) · Mathematics (4 works) · Social Psychology (4 works)