Write a short note about non comparative scaling techniques

Non-comparative scaling involves every stimulus object being scaled independently of other objects in the stimulus set. Resulting data in non-comparative scale are presumed to be interval or ratio scaled. For instance, rather than direct comparison between brands researcher may ask respondent to rate each brand separately on a scale of 1 - 10 and can evaluate every brand as well as compare brands also. Noncomparative scaling techniques involve continuous rating scales and itemised rating scales. Itemised rating scales are further sub-divided into likert scale, semantic differential scale and stapel scale.