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UI Design Newsletter – March, 2008

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Insights from Human Factors International

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In This Issue:

Of cold meds and value – Understanding irrational decision making under certainty

Chief Scientist Kath Straub, PhD, CUA, and Director of Technical Services Katie Hill, look at the emotions and beliefs that drive perceived value.

The Pragmatic Ergonomist

Dr. Eric Schaffer, Ph.D., CPE, founder and CEO of HFI offers practical advice.

 
Of cold meds and value
   

The sneezing, sniffling, achy, head fever so you can rest easier with your decision

There I am, again. Staring at the cold medicines at the drug store.

I can pay $12 bucks for NyQuil™. The generic is $5.99.

generic vs. namebrand pricing

After 10 minutes of reading labels, shifting boxes and bottles around, re-reading labels and second and third guessing myself, I reach for the NyQuil. For good measure I also grab the $11 nighttime version (generic $6.99). A girl's got to sleep, right?

Here is the conundrum: I know that the branded medicine and the generic are the same thing. I re-read the label about 6 times every cold season. But I always buy the expensive one. There is something scary and risky about buying the cheaper cold cure... I'm just not confident it will work as well. Even though I understand rationally that the two medicines are identical.

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Rationality Ready.
Rationality Capable?

Careening down that irrational path, it is comforting to note that... I'm not alone.

Waber, Shiy, Carmon and Arely (2008) report a study showing that participants perceived that full-priced pain relievers work better than the same pills offered at a discount.

In this study, participants were recruited under the guise of testing a new pain relieving drug under investigation by the FDA.

In order to test the effectiveness of the 'new drug,' participants took it and then were given increasingly intense electric shocks. After each shock, they would report how much pain they experienced on a scale ranging from "no pain at all" to "the worst pain imaginable."

To determine whether cost influenced perceived effectiveness, half of the participants were told that the drug would cost $2.50 / pill. The other half of the participants were told that it had been discounted to 10 cents / pill.

Participants who believed that the drug cost $2.50 / pill reported that it worked significantly better than those that thought it cost only 10 cents / pill.

The best part of the whole study? The pills were placebos.

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Users are Rationality Capable. But are they Rationality Ready?

There are two points to be taken from consumers' willingness to pay more for cold meds:

  1. The difference is merely perceived.
  2. The mere perception is absolutely real.

As user experience (UX) continues to evolve from evaluating whether a user can do a task, to describing how to engage consumers such that they will do it, it becomes increasingly important to explore beyond the visible situation to understand the emotions and beliefs that drive perceived value and facilitate or block relevant decisions.

The Pragmatic Ergonomist, Dr. Eric Schaffer
   

 

Getting at why people make the decisions they do is not always obvious. And figuring it out is no longer just about watching what people do. You also have to figure out what drives users, and what beliefs or situations may get in the way of making the decisions that your organization wants them to make.

Usability hasn't defined enough effective methods for doing this. And despite what people may think, neither has marketing. Look to hear more from us about this. We're working on it...

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References

Waber, Shiy, Carmon and Arely (2008). Commercial Features of Placebo and Therapeutic Efficacy. The Journal of the American Medical Association, 299 (9), 1016-1017.

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The HFI User Interface Design Update Newsletter discusses the latest research in the field of usability. To learn more about the practical application of recent usability research and how it impacts user-centered design, we invite you to attend our Putting Research into Practice course.