WOLFRAM|DEMONSTRATIONS PROJECT

Expanded Magnitude Estimation Method

​
data
generate
clear
seed repeatable random numbers
n random trials
300
seed value
12
active
x minima
x maxima
x
1
25.
x
1
50.
x
2
15.
x
2
35.
x
3
10.
x
3
40.
x
4
30.
x
4
40.
x
5
35.
x
5
45.
x
6
45.
x
6
55.
x
7
25.
x
7
60.
x
8
40.
x
8
60.
x
9
50.
x
9
65.
x
10
25.
x
10
75.
x
11
25.
x
11
75.
x
12
25.
x
12
75.
This Demonstration presents an expanded version of the magnitude estimation method used to assess the perceived intensity of physical and chemical stimuli by humans or their preference for a product. It is based on the individual subject or panelist's assessment, not as a single number or equivalent length, but as lower and upper limits of a range. This is followed by Monte Carlo simulations to produce the mean response and its standard deviation. These can also be computed directly from the entered ranges' limits. If the entered minimum equals the entered maximum in all the evaluations, this reduces to the traditional method.