Final Flashcards
Number of consumers for Focus Group
n = 8-12, time = 1-3 hours
Structured interviews (n =?, when?)
(aka in-depth interview)
n = 12 - 50. used for topics too sensitive for group discussion.
Are focus groups qualitative or quantitative
Mostly qualitative
(can be quantitative, ie. counting words to from word cloud)
When do you use a ranking test
when the objective is to determine how a single sensory attribute varies over 3 or more samples
Ranking test principles
balanced and random
rank samples to spec. attribute
calculate rank sums
use friendman’s test to find sig dif
use post hoc (least sig dif) to find which sample was different
minimum panelists for a ranking test
min = 8
is it required to have trained panelists for ranking test?
no, not Required per se
Frieman’s Test. b=?, t=?
b = # of panelists
t = # of samples per panelists
Number of panelists for Triangle Test
n = 20-40 (can be as few as 12)
Food internal stimuli
texture, aroma, taste, etc.
Food external stimuli
Ambiance, health, messaging, social environment, etc.
what is flavor?
A multisensory experience
Affective, difference, descriptive: Triangle Test
Difference
Affective, difference, descriptive:
Lexicon Development
Descriptive
Affective, difference, descriptive: Hedonics
Affective
