Table 3.

Sample sizes for each score type provided from the All Available sample (N = 649).

Administration	NCQ	Factor 1	Factor 2	Factor 3	Factor 4
Total	555	614	612	626	630
Only 1st administration	189 b	177	168	165	151
Only 2nd administration	52	29	18	23	13
Both administrations	314 a,b	408	426	438	466

^a These 314 made up the Complete Case (CC) sample. ^b These 503 made up the sample on which the exploratory factor analysis was performed.