Question

which of the following alters or changes behavior in a positive way? reinforcement strength weakness

Explanation:

In behavioral terms, reinforcement (from behavioral psychology, a subfield of Social Science) is used to increase the likelihood of a behavior being repeated, thus altering behavior positively. "Strength" refers to a quality of being strong, not behavior change. "Weakness" is a lack of strength, also not related to positive behavior change.

Answer:

reinforcement