Borghans, Lex; Duckworth, Angela Lee; Heckman, James J.; … - Institute for the Study of Labor (IZA) - 2008
-reports,
and observer reports of latent traits.
Let
,
n
il
M be the n
th
measurement (by test or observer report) on trait l …
,
n
li
M may depend on other components of f
i
, so that the
measurement captures a composite of latent traits. Thus in … general we may have
(4)
,,
, 1,...,
nnn n
il l i il l
M fnNμλ ε=+ + = ,
where
n
λ is a vector with possibly as many as …