Abstract
Objectives: Age-related differences in daily experiences are often described using summaries of categorical repeated measures, including typologies of stressors, activities, social partners, and coping strategies. This paper illustrates how an intraindividual variability (IIV) framework can be used to extract additional meaning from categorical IIV data. Method: Using 8-occasion categorical data on daily stressors from the National Study of Daily Experiences (N = 1,499, MAge = 46.74, SDAge = 12.91), we derive and compute six IIV metrics that invoke numeric and nominal measurement of the central tendency, dispersion, and asymmetry of individuals' stressor experiences and examine how these metrics, relative dominance, diversity, log-skew and mode, spread, order, are related to age and interindividual differences in negative affect. Results: Results demonstrate the utility of the numeric and nominal categorical IIV metrics, with theoretically meaningful age gradients in the three numeric IIV stressor metrics and five of six IIV metrics mapping differences in negative affect. Discussion: Findings highlight how the unique constructs measured by these six metrics of categorical IIV may be used to examine dynamic process, study interindividual and age-related differences, and expand the variety of developmental research questions that may be answered using categorical repeated measures data.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 87-99 |
| Number of pages | 13 |
| Journal | Journals of Gerontology - Series B Psychological Sciences and Social Sciences |
| Volume | 73 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2018 |
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All Science Journal Classification (ASJC) codes
- Health(social science)
- Sociology and Political Science
- Life-span and Life-course Studies
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More than counting : An intraindividual variability approach to categorical repeated measures. / Koffer, Rachel E.; Ram, Nilam; Almeida, David M.
In: Journals of Gerontology - Series B Psychological Sciences and Social Sciences, Vol. 73, No. 1, 01.01.2018, p. 87-99.Research output: Contribution to journal › Article
TY - JOUR
T1 - More than counting
T2 - An intraindividual variability approach to categorical repeated measures
AU - Koffer, Rachel E.
AU - Ram, Nilam
AU - Almeida, David M.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Objectives: Age-related differences in daily experiences are often described using summaries of categorical repeated measures, including typologies of stressors, activities, social partners, and coping strategies. This paper illustrates how an intraindividual variability (IIV) framework can be used to extract additional meaning from categorical IIV data. Method: Using 8-occasion categorical data on daily stressors from the National Study of Daily Experiences (N = 1,499, MAge = 46.74, SDAge = 12.91), we derive and compute six IIV metrics that invoke numeric and nominal measurement of the central tendency, dispersion, and asymmetry of individuals' stressor experiences and examine how these metrics, relative dominance, diversity, log-skew and mode, spread, order, are related to age and interindividual differences in negative affect. Results: Results demonstrate the utility of the numeric and nominal categorical IIV metrics, with theoretically meaningful age gradients in the three numeric IIV stressor metrics and five of six IIV metrics mapping differences in negative affect. Discussion: Findings highlight how the unique constructs measured by these six metrics of categorical IIV may be used to examine dynamic process, study interindividual and age-related differences, and expand the variety of developmental research questions that may be answered using categorical repeated measures data.
AB - Objectives: Age-related differences in daily experiences are often described using summaries of categorical repeated measures, including typologies of stressors, activities, social partners, and coping strategies. This paper illustrates how an intraindividual variability (IIV) framework can be used to extract additional meaning from categorical IIV data. Method: Using 8-occasion categorical data on daily stressors from the National Study of Daily Experiences (N = 1,499, MAge = 46.74, SDAge = 12.91), we derive and compute six IIV metrics that invoke numeric and nominal measurement of the central tendency, dispersion, and asymmetry of individuals' stressor experiences and examine how these metrics, relative dominance, diversity, log-skew and mode, spread, order, are related to age and interindividual differences in negative affect. Results: Results demonstrate the utility of the numeric and nominal categorical IIV metrics, with theoretically meaningful age gradients in the three numeric IIV stressor metrics and five of six IIV metrics mapping differences in negative affect. Discussion: Findings highlight how the unique constructs measured by these six metrics of categorical IIV may be used to examine dynamic process, study interindividual and age-related differences, and expand the variety of developmental research questions that may be answered using categorical repeated measures data.
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U2 - 10.1093/geronb/gbx086
DO - 10.1093/geronb/gbx086
M3 - Article
C2 - 29029333
AN - SCOPUS:85046042109
VL - 73
SP - 87
EP - 99
JO - Journals of Gerontology - Series B Psychological Sciences and Social Sciences
JF - Journals of Gerontology - Series B Psychological Sciences and Social Sciences
SN - 1079-5014
IS - 1
ER -