She was kept on FR1 (continuous reinforcement) for the day, and she did well - there was a noticeable improvement in her performance compared to Monday's. Rosie pressed the bar on her own 66 times, and I had to deliver manual reinforcements (when she wandered away from the bar, became disinterested, or approached the bar yet failed to press it) only 10 times. After 22 minutes and 21 seconds, Rosie seemed to lose interest, and Brian and I decided to end the session. Her improvement can be seen in the cumulative record for Tuesday's session, pictured below:
Although this cumulative record marks a steady increase in bar-pressing behavior in only one day, Brian and I still feel that we should continue with FR1 for today: Rosie was not as confident in her bar-pressing as we would like. Though the vast majority of the time, she pressed it for herself, she still seemed surprised at times when the food would appear after her pressing the bar, or she would still merely approach/touch the bar without pressing down on it.
For the next training session, our goal is to establish a very firm association between bar-pressing and the delivery of reinforcements for Rosie. We will keep her on FR1, and then proceed with FR2 for the next training session after today's.
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