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In Sight—QOL Testing: Complementing Clinicals
By: K. Schaefer, Cosmetics & Toiletries magazine
Posted: January 4, 2008, from the January 2008 issue of Cosmetics & Toiletries.
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Both tests ask different sets of questions. For example, the BMIS requires participants to evaluate the intensity level of certain feelings. Subjects choose phrases such as: “definitely do not feel,” “do not feel,” “slightly feel,” and “definitely feel” to evaluate a product’s effect on mood adjectives such as peppy, grouchy, drowsy, loving, tired, content and jittery. The WBMMS, however, involves more in-depth questions that ask participants to rate the frequency of psychological experiences such as “I had confidence,” “I felt useful,” “I felt emotionally balanced,” and “I smiled easily”; matching them with the phrases “never,” “rarely,” “sometimes,” “frequently” and “almost always.”
A Complementary Approach
Well-being testing differs depending on geographical location, according to Sirvent. “You can’t just use a questionnaire developed in the United States and translate it; you must develop a questionnaire for each location and develop it to that culture and location,” said Sirvent, who added that after a questionnaire is developed for a specific country, it must be validated by a linguist.
The company recommends that the QOL scales be used to complement physical efficacy testing.
“We conduct physical well-being testing such as testing skin microcirculation to evaluate relaxation. Quality of life tests go beyond clinical testing. They are complementary approaches to clinical evaluations,” said Sirvent.