Exercise 2: Why Negative Reinforcement Still Strengthens Behavior — Possible Solution
==========================================================================================

The real distinction Skinner established isn't based on whether
something is being ADDED or REMOVED - it's based on whether the
consequence makes the preceding behavior MORE likely or LESS likely to
happen again in the future. That's the actual defining feature, and
both positive and negative reinforcement land on the same side of it.

Positive reinforcement adds something desirable after a behavior,
making that behavior more likely to be repeated - the "positive" here
just means something is being added, not that the effect is
emotionally pleasant in some vague sense.

Negative reinforcement removes something aversive (unpleasant) after a
behavior, and that removal is precisely what makes the behavior MORE
likely to be repeated in the future - a real, concrete example is
someone learning to fasten their seatbelt specifically because doing
so stops an annoying warning chime. The seatbelt behavior gets
strengthened (they keep doing it), even though what happened was the
REMOVAL of something unpleasant, not the addition of something
rewarding.

Punishment is the real, opposite category: regardless of whether
something is added (like a fine) or removed (like a privilege taken
away), punishment's defining feature is that it makes the preceding
behavior LESS likely to happen again. The real add/remove distinction
only tells you whether something is "positive" or "negative" in
Skinner's own specific technical sense - it's the reinforcement/
punishment distinction, based on whether future behavior increases or
decreases, that actually separates strengthening from suppressing.

ANSWER: Negative reinforcement still counts as reinforcement because
Skinner's real distinction is based on whether behavior becomes more or
less likely afterward, not on whether something is added or removed.
Removing an aversive stimulus (like a seatbelt chime stopping) makes
the preceding behavior MORE likely to recur, which is exactly what
reinforcement means - punishment, by contrast, is defined by making
behavior LESS likely, regardless of whether something was added or
taken away.

WHY THIS WORKS AS AN ANSWER
------------------------------
This identifies the real defining variable (future behavior frequency)
Skinner actually used, rather than the more intuitive but incorrect
add/remove distinction, with a concrete example illustrating the
correct logic.