End Notes
1: Weighted linear combinations means
that each variable has a different weight: the factor/component loading
that determines how much or little each variable contributes to the
composite. This is similar to multiple regression where a variable
score is composed of different amounts (regression weights) of each
variable in the equation.
[return]
2: Please
note, there is one other extraction method, principal components analysis.
There are also two additional extraction options to recognize and
perform analyses on a set of scoring coefficients or a factor pattern
matrix.
[return]
3: We put that in quotation marks
because most researchers reporting results from an EFA fail to do
any replication at all.
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