Table 3.

Alcohol Use Items

Items	Key wordsa
12 years
Had 3 or more drinks	3+ drinks
Had whole drink	Whole drink
Maximum number of drinks in a typical week	Typical
13 years
Had whole drink	Whole drink
Maximum number of drinks in a typical week	Typical
Ever had 3 or more drinks	3+ drinks – ever
15 years
Spent great deal of a day drinking	Day drinking
Had a blackout	Blackout
Felt the need to cut back or stop	Cut back
Parents/friends complained	Complaints
Had 4 or more drinks	4+ drinks
Continued drinking despite problems	Continued drinking
Used alcohol in dangerous situations	Dangerous situations
Had 5 or more drinks	5+ drinks
Gotten into fights when drinking	Fights
Not done what would usually do	Daily tasks
Had whole drink	Whole drink
Typical drinking	Typical
Had been physically hurt	Physical injury
Had problems with police	Problem with police
Went over limits set	Over limits
17 years
Spent great deal of day drinking	Day drinking
Had problems with police	Problem with police
Unable to remember what happened the night before	Blackout
Felt the need to cut back or stop	Cut back
Friend/parent/doctor complained	Complaints
Continued despite problems	4+ drinks
Had 6 or more drinks	6+ drinks
Gotten into fights when drinking	Fights
Failed to do what was expected	Daily tasks
Unable to keep up with school work etc.	School
Typical drinking	Typical
Frequency of drinking	Frequency
Has been injured	Physical injury
Unable to stop drinking	Limits

^atem parameters (loadings and thresholds) were constrained equal across time for the items with the same key word.