TY  - JOUR
T1  - MUlti-item "instruments" vs virginia apgar's principles of clinimetrics
AU  - Feinstein AR
Y1  - 1999/01/25
N1  - 10.1001/archinte.159.2.125
JO  - Archives of Internal Medicine
SP  - 125
EP  - 128
VL  - 159
IS  - 2
N2  - 
The object of Apgar's attention—the clinical condition of a newborn baby—was not something tangible, like the length of a leg, the color of a fingernail, or the noise of a heart murmur. A baby's condition is an intangible clinical concept or "construct," somewhat like anxiety or congestive heart failure, that is not directly observed as an individual entity, but that can be perceived, interpreted, and rated from a set of pertinent observed phenomena.

SN  - 0003-9926
M3  - doi: 10.1001/archinte.159.2.125
UR  - http://dx.doi.org/10.1001/archinte.159.2.125
ER  -