Table 2.

Feedback on daily gain or loss

Condition	Walking	Water intake
Positive reinforcement
Criteria was met	Congratulations! Today, you did: XX steps You earned: $2 You've accumulated: $XX Days to go in this phase: X	Congratulations! Today, you drank: XX oz. You earned: $2 You've accumulated: $XX Days to go in this phase: X
Criteria was not met	Sorry. Today, you only did: XX steps You earned: $0 You've accumulated: $XX Days to go in this phase: X	Sorry. Today, you only drank: XX oz. You earned: $0 You've accumulated: $XX Days to go in this phase: X
Negative reinforcement
Criteria was met	Congratulations! Today, you did: XX steps You didn't lose: $2 You've accumulated: $XX Days to go in this phase: X	Congratulations! Today, you drank: XX oz. You didn't lose: $2 You've accumulated: $XX Days to go in this phase: X
Criteria was not met	Sorry. Today, you only did: XX steps You lost: $2 You've accumulated: $XX Days to go in this phase: X	Sorry. Today, you only drank: XX oz. You lost: $2 You've accumulated: $XX Days to go in this phase: X
Positive and negative reinforcement
Criteria was met	Congratulations! Today, you did: XX steps You earned: $2 You've accumulated: $XX Days to go in this phase: X	Congratulations! Today, you drank: XX oz. You earned: $2 You've accumulated: $XX Days to go in this phase: X
Criteria was not met	Sorry. Today, you only did: XX steps You lost: $2 You've accumulated: $XX Days to go in this phase: X	Sorry. Today, you only drank: XX oz. You lost: $2 You've accumulated: $XX Days to go in this phase: X