Modification index in EFA PreviousNext
Mplus Discussion > Exploratory Factor Analysis >
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 Jenny L.  posted on Sunday, June 02, 2013 - 10:41 am
Dear Drs. Muthen,

I was running an EFA with 5 items and only a one-factor solution was produced. Model fitness was mediocre so further modification was needed.

The modification index showed that one item had high MIs and EPCs with several other items. Does it mean that removing this item would lead to noticeable changes in other items and thus it should be the one considered for removal?
 Linda K. Muthen posted on Monday, June 03, 2013 - 10:57 am
You should get both a one- and two-factor solution with five factor-indicators. I would look at the two-factor solution. A residual covariance between two items suggests a possible need for another factor.
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