Positive punishment = addition of a "bad thing" to shape behavior (i.e., getting slapped)
Negative punishment = removal of a "good thing" to shape behavior (i.e., having your XBox360 taken away)
Positive reinforcement = addition of a "good thing" to shape behavior (i.e., getting a reward of money)
Negative reinforcement = removal of a "bad thing" to shape behavior (i.e., "we'll stop torturing you if you confess.")
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For anybody wondering...
Positive punishment = addition of a "bad thing" to shape behavior (i.e., getting slapped)
Negative punishment = removal of a "good thing" to shape behavior (i.e., having your XBox360 taken away)
Positive reinforcement = addition of a "good thing" to shape behavior (i.e., getting a reward of money)
Negative reinforcement = removal of a "bad thing" to shape behavior (i.e., "we'll stop torturing you if you confess.")