Porovnat metody

	Best-Worst Scaling of Food Values	Nutrient Profiling Model
Obor	Food Agriculture Studies	Food Agriculture Studies
Rodina	Process / pipeline	Process / pipeline
Rok vzniku	2009	2005
Tvůrce	Jayson L. Lusk & Brian C. Briggeman (food values application); Adam Finn & Jordan Louviere (BWS method)	Mike Rayner, Peter Scarborough & Tim Lobstein (UK FSA/Ofcom model); Public Health Nutrition framework
Typ	Maximum-difference choice-based scaling pipeline for food values	Scoring pipeline classifying foods by nutritional composition
Původní zdroj	Lusk, J. L., & Briggeman, B. C. (2009). Food Values. American Journal of Agricultural Economics, 91(1), 184-196.	Scarborough, P., Rayner, M., & Stockley, L. (2007). Developing nutrient profile models: a systematic approach. Public Health Nutrition, 10(4), 330-336.
Další názvy	Food Values Best-Worst Scaling, MaxDiff Scaling of Food Values, Lusk-Briggeman Food Values, Best-Worst Food Preference Elicitation	Nutrient Profiling, UK Ofcom/FSA Nutrient Profile Model, WXYfm Model, Nutrient Profile Scoring
Příbuzné	3	4
Shrnutí	Best-worst scaling of food values measures how much consumers care about a fixed set of food attributes — safety, price, taste, nutrition, naturalness, origin, environmental impact, fairness, and so on — by repeatedly asking them to pick the most and least important value from small subsets. Jayson Lusk and Brian Briggeman's 2009 article 'Food Values' introduced this specific application, adapting the best-worst (maximum-difference) scaling method that Finn and Louviere pioneered for food-safety research. Rather than rating each value on a 1-to-5 scale, where everything tends to look important, respondents are forced to trade values off against one another, yielding a discriminating, interval-scaled ranking of what truly drives their food choices and avoiding the scale-use biases that plague conventional importance ratings.	Nutrient profiling is the science of categorising foods according to their nutritional composition for reasons related to preventing disease and promoting health. A nutrient profiling model operationalises this idea as a transparent scoring algorithm: each food is awarded points for components considered detrimental in excess (energy, saturated fat, sugars, sodium) and points for beneficial components (fruit, vegetable and nut content, fibre, protein), and the net score is thresholded to classify the food as 'healthier' or 'less healthy'. The best-known example is the UK Food Standards Agency / Ofcom model (the WXYfm model developed by Rayner, Scarborough and colleagues), adopted in 2007 to restrict television advertising of less-healthy foods to children and later adapted by the WHO and as the underlying engine of front-of-pack schemes. Scarborough, Rayner and Stockley set out the systematic, transparent development process that distinguishes a defensible model from an ad hoc one.