Mrs. Smith's husband suffered a stroke, one result being that he very rarely spoke. Mrs. Smith consulted a behavior therapist and together they designed a reinforcement program. First, for one week, she was to act normally and place a tick mark in a specified column on a data sheet every time her husband spontaneously vocalized to her (Baseline). The next week she was to continue to keep count, but she was also to touch, praise, and smile at her husband following each of his spontaneous vocalizations (Treatment). At the beginning of the program, she sometimes got confused and placed a tick mark in the wrong column, but eventually she got it right. We can conclude that the forcement program was responsible for improving Mr. Smith's spontaneous vocalizations. Is a threat present (Yes/No)?