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Home » How to lose weight safely » Talk is cheap: Why we make healthy claims but indulge in unhealthy behaviors – Purdue News Service

WEST LAFAYETTE, Ind. The time period between Thanksgiving and Christmas is characterized by overindulgence. While we tell others that we are eating and drinking in moderation, controlling our spending, and exercising more, in reality, we do the exact opposite. So where does this disconnect come from?

Often when responding to questions about sensitive behaviors (for example, weight gain, over-eating, alcohol consumption), people want to appear socially correct while downplaying bad behaviors. Psychologists call this subconscious response social desirability bias (SDB), and for researchers who are trying to understand a persons actual behavior, these biased responses are a problem.

Were human. We want others to like us and think of us as good people, says Nicole Olynk Widmar, professor of agricultural economics at Purdue University. However, health care providers and researchers need accurate self-reported data. Understanding SDB is imperative to being able to collect good data about human behaviors, especially self-reported data about sensitive topics, such as weight gain and eating over the holiday season.

Widmar and Courtney Bir, assistant professor at Oklahoma State, recently published a study on recognizing and mitigating SDB in responses to questions about holiday health-related behaviors, in the Springer Nature journal Humanities and Social Sciences Communications.

We asked survey respondents to report their holiday health-related behaviors and their beliefs on the behaviors of the average American, Bir says. We then compared the responses to determine what percentage of respondents rated themselves better than they rated the average American. That difference is where we find evidence of the bias.

The largest proportion of respondents showing evidence of SDB was found in response to two statements: I will consume more alcohol during the holiday season than at other times of the year (66% of respondents displayed evidence of SDB), and I make it a New Years Resolution to lose weight (62% of respondents displayed evidence of SDB).These responses suggest respondents will drink less alcohol and be more likely to make a resolution to lose weight, compared with the average American.

However, while Bir and Widmar set out to recognize SDB, they also wanted to find ways to combat it. Their method? Add cheap talk statements.

Cheap talk is often used in surveys to explicitly inform respondents of different biases that can arise related to the question being asked, Bir says. In the study, we tested a statement that simply informed people that sometimes human inclination moves us to answer in a way that deviates from our own true behavior because we want to be socially correct. The idea is that the person may be more likely to provide an accurate response because the potential for bias has been explicitly brought to their attention.

The study included two participant groups. One group received a cheap talk statement prior to rating their level of agreement to the holiday health behaviors, while the other did not. By comparing the two groups, the researchers were able to determine if evidence of SDB was lessened for the respondents receiving the cheap talk statement.

Widmar and Bir noted that cheap talk was effective in reducing SDB for some questions and in some respondents but not all of them. As Widmar says, For some people or some statements studied, SDB is so engrained that the cheap talk statement did not have a measurable impact.

Writer: Kami Goodwin, kami@purdue.edu

Sources: Nicole Olynk Widmar, nwidmar@purdue.edu, and Courtney Bir, courtney.bir@okstate.edu

Agricultural Communications:765-494-8415;

Maureen Manier, Department Head,mmanier@purdue.edu

Agriculture News Page

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Talk is cheap: Why we make healthy claims but indulge in unhealthy behaviors - Purdue News Service

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Home » How to lose weight safely » Talk is cheap: Why we make healthy claims but indulge in unhealthy behaviors – Purdue News Service