However, in some cases, the results may be affected by stereotypes (Krueger, 1988) even when led by an experienced moderator. Social barriers and pressure may bias the expression of feelings, thoughts and self-reported behaviour. In some cases and when
interviewed, subjects tend to provide answers that are socially desirable and stereotypical, thus trying to be polite and comply with the supposed answer that the interviewer expects (Will, Eadie, & Macaskill, 1996).
Projective techniques, although qualitative in nature too, might provide complementary information since they reveal the internal thoughts and feelings of a person, thus yielding a more spontaneous and affective answer from consumer. Projective techniques are based on the use of vague, ambiguous, unstructured stimulus objects or situations in which the subject projects his/her personality,attitude, opinions and self-concept to give the situation some structure (Donoghue, 2000). In the scientific literature, there are different commonly used projective techniques, both for personality and clinical evaluation, such as Rorschach Inkblot Test, Thematic Apperception Test, Drawing Techniques (Garba, Wood, Lilienfeld, & Nezworski, 2002) or Free Word Association (Colangelo,Stephenson, Westbury, & Buchanan, 2003) among others.
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