The cumulative record also contains short, vertical lines near the top of the record. These lines indicate
a. reinforcers delivered manually.
b. the occurrence of behaviors other than bar presses.
c. pauses in bar pressing that were longer than 10 seconds.
d. changes in Action Strength.
a. reinforcers delivered manually.
Answer feedback: The short, vertical lines indicate the manual delivery of reinforcement. Thus there is the possibility that they will coincide with the short, oblique lines in the record. However, as Sniffy increasingly produces reinforcers on his own, the short, oblique lines will continue to appear, but the short, vertical lines will not.
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