HEALTH DANGEROUS BEHAVIOR BEFORE AND AFTER SIBIS INTRODUCTION
Median Monthly Totals for 9 Students
 BEFORE SIBIS
(REWARDS PLUS
NON-SHOCK AVERSIVES)
SIBIS
1. Celeration =÷1.2
During the 12 months before SIBIS was used, the behaviors were decreasing, dividing by the factor of 1.2 every six months.
2. Jump Down = ÷ 2.0
When SIBIS was first applied the frequency of the behaviors decreased immediately (“jumped down”) by a factor of 2.0 (50% reduction).
3. Celeration = x1.4
During the first 12 months of SIBIS
use, the behaviors increased, multiplying
 by a factor of 1.4 every six months.
Text Box: Total Behaviors Per Month For The Average (Median) Student
Total Behaviors Per Month For The Average (Median) Student
*Each dot is the average data for 9 students. Chart shows the 12 months before and 11 months after SIBIS was introduced. Introduction dates differed among
students and occurred during the period 6/89 to 3/91
 9 Students
Health Dangerous