Steve and Julie have purchased a program that promises to drastically improve marital relationships in just two weeks. Although the program has not been tested scientifically, they were impressed by the use of scientific phrasing such as "co-dependency," "holistic healing," and "subjective well-being." This example illustrates which warning sign of pseudoscience?\

Psychobabble.

Explanation:

Psychobabble is a form of speech or writing that uses language loaded with psychological terminology to give an impression of a plausible quality through a misdirection and obfuscation (mental confusion produced by an idea or impression that prevents reasoning).  Our ability to reason normally can be disturbed and confused and on these occasions we say that we are obfuscated. The term implies that the speaker or writer does not adequately handle psychological terms to give them the necessary understanding.

answer; vygtosky's theory;