Editing DevCon (section)

==MLS==
Subjects were assessed over time with different measures in two groups; A1-7 and A18-26. CPD was asked at both time points with the variable CIG3

'''Questions'''
*<u>Question CIG3</u>: Cigarettes in past 30 days
** 0 = not at all
** 1 = less than one cigarette per day
** 2 = one to five cigarettes per day
** 3 = about one-half pack per day
** 4 = about one pack per day
** 5 = about one and one-half packs per day
** 6 = two packs or more per day
** 8 = NA (No smoking in lifetime OR no smoking in last 12 months)
** 9 = missing

'''Recoding and Transforming'''

Question CIG3 was recoded from ordinal to numeric using the following conversions (assuming 20 cigarettes/pack).
* 0 = 0
* 1 = .5 *
* 2 = 3.5
* 3 = 10
* 4 = 20
* 5 = 30
* 6 = 40
* 8 = NA
* 9 = NA
* * Subjects who indicated smoking less than one cigarette per day were set at .5 to differentiate them from non-smokers. Because they do not indicate smoking a whole cigarette, they were not set at 1.

The distribution of cigarettes per day over test time (Test variable, X axis), which roughly corresponds as 1-7 = 11-17 years, and 18-26 as 18-26 years old (see Descriptives), looked like this (added jitter):

[[File:MLSCPD.jpeg|frameless|border|MLS]]