Answer:
: a mid-20th century political attitude characterized chiefly by opposition to elements held to be subversive and by the use of tactics involving personal attacks on individuals by means of widely publicized indiscriminate allegations especially on the basis of unsubstantiated charges; broadly : defamation of character or reputation through such tactics
It is False that an observer must know that social learning is occurring for it to be effective.
The answer is [ because of the separation, sentences with this error often sound awkward, ridiculous, or confusing.]