Dillard & Shen have provided evidence that psychological reactance can be measured, in contrast to the contrary opinion of Jack Brehm, who developed the theory. In their work they measured the impact of psychological reactance with two parallel studies: one advocating
flossing and the other urging students to limit their
alcohol intake. They formed several conclusions about reactance. Firstly reactance is mostly
cognitive; this allows reactance to be measurable by
self-report techniques. Also, in support of previous research, they conclude reactance is in part related to an
anger response. This verifies Brehm's description that during the reactance experience one tends to have hostile or aggressive feelings, often aimed more at the source of a threatening message than at the message itself. Finally, within reactance, both
cognition and
affect are intertwined; Dillard and Shen suggest they are so intertwined that their effects on
persuasion cannot be distinguished from each other. Dillard and Shen's research indicates reactance can effectively be studied using established self-report methods. Furthermore, it provided a better understanding of reactance theory and its relationship to persuasive health communication. Miller and colleagues conducted their 2007 study
Psychological reactance and promotional health messages: the effects of controlling language, lexical concreteness, and the restoration of freedom at the
University of Oklahoma, with the primary goal being to measure the effects of controlling language in promotional
health messages. Their research revisited the notion of restoring freedom by examining the use of a short
postscripted message tagged on the end of a promotional health appeal. The results of the study indicated that more
concrete messages generate greater attention than less concrete (more
abstract) messages. Also, the source of concrete messages can be seen as more credible than the source of abstract messages. They concluded that the use of more concrete, low-controlling language, and the restoration of freedom through the inclusion of a choice-emphasizing postscript, may offer the best solution to reducing
ambiguity and reactance created by overtly persuasive health appeals. ==See also==