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Hello Teachers,

Would you please explain the grammatical functions of 'much and 'more' in the following sentence?

Behavior is much more effective at motivating an individual than negative reinforcement or punishment.
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Hi,

Would you please explain the grammatical functions of 'much and 'more' in the following sentence?

Behavior is much more effective at motivating an individual than negative reinforcement or punishment

I'm not good at naming things, but here's what I'd say.

'More' is an adverb qualifying 'effective'. It is also working with the conjunction 'than' to express a comparison in the sentence.

'Much' is an adverb intensifying 'more'.

Best wishes, Clive
Comments  
Behavior is the subject, is is a linking verb, and much more effective is an adjectival subjective complement which completes the meaning of Behavior.

More effective
is just the comparative form of the adjective effective.

Behavior is ... more effective ... than negative reinforcement or puishment.

Much is an adverb which modifies more effective. It means to a great degree.

Students: Are you brave enough to let our tutors analyse your pronunciation?
 Clive's reply was promoted to an answer.
Thanks Lvw and Clive.