Abstract
In this commentary, it is argued that the definition of the time or the age variable in the models presented by Hofer and Sliwinski is ambiguous, and a standard interpretation of this time of age variable is proposed instead. Some simulation studies are presented, the results of which indicate that, even with age-heterogeneous cross-sectional data, correct identification of the true sources of age-dependent variation is possible. An important qualification, based on new methodological work in progress, is given of the scope of longitudinal designs. It is concluded that all kinds of age-related changes are potentially interesting and can be correctly identified and explained.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 13-17 |
| Number of pages | 5 |
| Journal | Gerontology |
| Volume | 48 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 28 2002 |
All Science Journal Classification (ASJC) codes
- Aging
- Geriatrics and Gerontology
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Correct identification and explanation of age-related changes are always possible. / Molenaar, Peter C.M.
In: Gerontology, Vol. 48, No. 1, 28.02.2002, p. 13-17.Research output: Contribution to journal › Article
TY - JOUR
T1 - Correct identification and explanation of age-related changes are always possible
AU - Molenaar, Peter C.M.
PY - 2002/2/28
Y1 - 2002/2/28
N2 - In this commentary, it is argued that the definition of the time or the age variable in the models presented by Hofer and Sliwinski is ambiguous, and a standard interpretation of this time of age variable is proposed instead. Some simulation studies are presented, the results of which indicate that, even with age-heterogeneous cross-sectional data, correct identification of the true sources of age-dependent variation is possible. An important qualification, based on new methodological work in progress, is given of the scope of longitudinal designs. It is concluded that all kinds of age-related changes are potentially interesting and can be correctly identified and explained.
AB - In this commentary, it is argued that the definition of the time or the age variable in the models presented by Hofer and Sliwinski is ambiguous, and a standard interpretation of this time of age variable is proposed instead. Some simulation studies are presented, the results of which indicate that, even with age-heterogeneous cross-sectional data, correct identification of the true sources of age-dependent variation is possible. An important qualification, based on new methodological work in progress, is given of the scope of longitudinal designs. It is concluded that all kinds of age-related changes are potentially interesting and can be correctly identified and explained.
UR - http://www.scopus.com/inward/record.url?scp=0036174652&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036174652&partnerID=8YFLogxK
U2 - 10.1159/000048918
DO - 10.1159/000048918
M3 - Article
C2 - 11844924
AN - SCOPUS:0036174652
VL - 48
SP - 13
EP - 17
JO - Gerontology
JF - Gerontology
SN - 0304-324X
IS - 1
ER -