Confirmatory factor analyses

#1
Hello, can I do a confirmatory factor analysis with two factors, if one factor is merely operationalized with one indicator variable? (The second factor is operationalized with four indicator variables).
Thanks for any input!
 

spunky

Can't make spagetti
#2
Hello, can I do a confirmatory factor analysis with two factors, if one factor is merely operationalized with one indicator variable? (The second factor is operationalized with four indicator variables).
Thanks for any input!
No. You need at least 3 items/indicators per factor for it to be identified. Or do some sorcery through inequality constraints, but that may fail as well.