Flavour together etc ask questions about attributes

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: egory scale) • appropriateness of intensity o just about right o relative to ideal Developing Questionnaires • taste your samples o need to know what food tastes like • what characteristics are important o what you want to look for • will consumers understand these characteristics o what words would people use • write the questionnaire o attributes and scale • have the questionnaire checked • recheck it yourself • run the test Questionnaire Design • determine the objective and then determine the minimum number of questions that you can ask to meet this objective • keep the questions clear and similar in style o scales must go in the same direction • think about your audience – age, ability • questions must relate to attributes that are detectable in the samples • ask questions in order of appearance of attributes • lump sensations together – ask all questions about flavour together, etc. • ask questions about attributes you have control over • overall liking – first or last Analysis of Affective Tests • dependent variable – what you are studying o what you ask panellists, ie. acceptability • independent variable – what you are manipulating o manipulating product • is there a difference in the dependent variable(s) based on the independent variable • ANOVA o compute the variance: ! between/among groups or treatments ! compare with the error (within treatment variance) o null hypothesis: no difference between products o reject the null hypothesis " perform multiple comparison o do not rejec...
View Full Document

Ask a homework question - tutors are online