positive reinforcing stimulus

NOUN
29 LETTERS · STARTS WITH P

positive reinforcing stimulus is a valid 29-letter word worth 40 points in Scrabble and 50 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3O1S1I1T1I1V4E1R1E1I1N1F4O1R1C3I1N1G2S1T1I1M3U1L1U1S1
3 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 3 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =40 PTS
DOUBLE WORD → 80TRIPLE WORD → 120
MEANING

What does positive reinforcing stimulus mean?

NOUN · 1 SENSE
1

A reinforcing stimulus that serves to increase the likelihood of the response that produces it.