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Gridsampler – A Simulation Tool to Determine the Required Sample Size for Repertory Grid Studies Cover

Gridsampler – A Simulation Tool to Determine the Required Sample Size for Repertory Grid Studies

By: Mark Heckmann and  Lukas Burk  
Open Access
|Jan 2017

Figures & Tables

Figure 1

Results of a small RGI from market research with 5 objects and 6 attributes.

Table 1

Results of content analysis of attributes showing the top 8 categories.

No.Topic/Category NameAttribute CountSample attributes assigned to category
1High quality – low quality30“reliable performance vs. makes a lot of trouble”
“quality car vs. poor quality car”
“produced to last long vs. frequent repairs”
2Good safety features – low safety24“sets safety standards vs. no really safe car”
“gives a feeling of protection vs. not feeling safe”
3Good design – bad design18“aesthetic proportions vs. ugly”
“modern design – old fashioned look”
“looks special – ordinary design”
4Good price – overpriced14“expensive – reasonably priced”
“good value for money – little value for money”
5Technically advanced vs. technically behind12“technically advanced vs. poor engineering”
“highly advanced vs. low technology level”
6Eco-friendliness vs. non-eco-friendly9“eco-friendly – not eco-friendly”
“low fuel consumption vs. unacceptably high fuel consumption”
7Conveys status vs. no status car7“high-status car – embarrassing to drive”
“demonstrate personal value – nobody takes notice”
8Sufficient space vs. too small7“spacious interior vs. feeling boxed in”
“enough space for my needs vs. problems transporting things”
Figure 2

Gridsampler GUI.

Figure 3

Lower part of panel 3 showing the simulation results.

Figure 4

Worst-case scenario.

Figure 5

The lower part of panel 3 with M = 1.

DOI: https://doi.org/10.5334/jors.150 | Journal eISSN: 2049-9647
Language: English
Submitted on: Sep 25, 2016
Accepted on: Dec 12, 2016
Published on: Jan 10, 2017
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2017 Mark Heckmann, Lukas Burk, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.