Material Experiance Flashcards
What are the two types of perceptions
Sensorial Properties
Experiential Attributes
What are examples of sensorial properties
Tactile, visual, auditory, olfactory and gustatory perceptions
Implicit Evaluations
Perceptions and subsequent behaviours that are the result of subconscious processes that may never make it to conscious thought. May be measured by an IET.
What is a common tool for examining explicit evaluation.
Explicit evaluations are consciously formed attitudes, they can be examined with a semantic differential scale (SDS)
What does the term “Just Noticeable Difference” mean and what impact would it have on the design of a component.
It is important to be aware of perceptual limitations for experiential properties. For many senses, people will not perceive a change unless the altered stimuli exceeds some threshold. The threshold amount that something must change in order for it to be noticeable is referred to as a just-noticeable difference.
It may be important when, for instance, a lighter material is selected to reduce the overall weight of a product (e.g. mobile phone). If the perceived change in weight between the former and new product is not different enough it will go unnoticed and be superfluous. Therefore, this material change would be ineffective.
Name advantages and disadvantages of explicit methods.
Explicit methods measure self-reported evaluations. These are relatively simple and can be used to explore a broad set of perceptions. One risk is that these are not always reliable since people could lie or rationalize a response they do not fully understand themselves.
Name advantages and disadvantages of implicit evaluations.
Implicit methods measure subconscious attitudes. Implicit methods require a much more focused question/hypothesis and can be difficult to assess. They do, however, provide more reliable evaluation of actual perceptions as they gather information about subconscious processes.
