When the purpose of a study is to evaluate the performance of a group of stimuli (concepts, products, or services) and each of the stimuli are rated by respondents, at the time of analysis, we should question the level of performance
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Read moreTETRACLASSE model* or Llosa's matrix allows us to prioritize the attributes impacting the satisfaction or dissatisfaction of a population towards a service/product or a brand according to two main criteria:
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