. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: J Clin Child Adolesc Psychol. 2014 Apr 14;44(5):839–845. doi: 10.1080/15374416.2014.893515

Table 2.

Coding of Time Variables and Expected Value of the Outcome Variable

Time Point	Pre-treatment	Midpoint	Post-treatment	3-month follow-up	1-year follow-up
Time 1	0	.596	1	1	1
Time 2	0	0	0	0.971	3.451
Expected Value	π_0i	π_0i + 0.596π_1i	π_0i + π_1i	π_0i + π_1i + 0.971π_2i	π_0i + π_1i + 3.451π_2i

Note. π_0i = expected anxiety level for subject i at the beginning of the treatment; π_1i = expected change in anxiety level for subject i at the end of the treatment; π_2i = expected change in anxiety level for subject i for the unit change in time (about 3 months) during the post-treatment period