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Table 2 Evaluation of triangle test for identification of active food sample

From: Milk- and wheat protein drinks for double blind placebo controlled food challenge in adults: a simple tool for diagnosis

 

No. of panelists

Mean age (range)

Men/women

Correct answer

Critical value

p-valuea

Wheat recipe (occasion 1)

38

22 (19–31)

14/24

16

18

> 0.05

Wheat recipe repeated (occasion 2)

35

25 (19–39)

4/31

15

17

> 0.05

Milk recipe (occasion 1)

43

28 (20–52)

9/34

17

20

> 0.05

Milk recipe repeated (occasion 2)

18

26 (19–41)

3/15

9

10

> 0.05

  1. aSignificance is determined by a triangle test table where the number of correct answers must be higher than a critical value specific for the number of participants and therefore no exact p-values are calculated