Context effects and biases in sensory judgements
5 important questions on Context effects and biases in sensory judgements
What is a context effect
- Judgement is relative to the environment
- Depends on frame of reference
- 10 degrees in winter/summer feels different
- Good is better compared to worse
What is the assimilation effects?
- Evaluation depends on context
- context/package creates expectations --> expectations affect choice
What is the dumping effect?
- Misusing response scales
- use right number of attributes --> some attributes can be ambiguous
- fruit flavour will enhance sweetness if there is not a scale for e.g. strawberry intensity
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What is the range frequency theory (Parducci)?
- Subjects tend to sub-divide the scale range into equal perceptual segments
Frequency principle
- People like to use the categories an equal number of times
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