Developing Objective Linear Scale Data from Subjective Tests for Consumer Products

Full-scale real tests of consumer behavior using experimental data

This paper reports on the results of three experiments based on the neoclassical theory of consumer behavior. All these experiments were carried out with the aim of simulating real-world behavior. Nonparametric tests, applying the theory of revealed preference, show that a significant number of individuals exhibit inconsistent behavior. If nearly optimizing behavior is postulated, then most of ...

Biometrics for Large-Scale Consumer Products

Lines, dashed lines and "scale" ex-tricks. Objective measurements of appetite versus subjective tests of intake.

Investigators of appetite for food have been tricked into the twin illusions that ratings of the disposition to eat are subjective and amounts eaten at meals are objective. The reality is the opposite. Making a mark on a continuous or broken line specified by two levels of what the rater uses as a single concept is the objective performance of a quantitative judgment. In contrast, the amount of...

Objective and subjective in vivo comparison of two emollient products

BACKGROUND Few studies have directly compared the effectiveness of different emollients in vivo, and the important matter of patient preference is generally overlooked. METHODS We report the results of an assessor-blinded, bilateral, concurrent comparison of two emollient pharmaceutical presentations, ie, Doublebase gel (DB) and Aqueous cream BP (AC), applied by 20 participants three times da...

An objective method for combining multiple subjective data sets

International recommendations for subjective video quality assessment (e.g., ITU-R BT.500-11) include specifications for how to perform many different types of subjective tests. In addition to displaying the video sequences in different ways, subjective tests also have different rating scales, different words associated with these scales, and many other test variables that change from one labor...