Linescale is a "tough test." Tough to be scored an Acceptor. It’s more than how much the sample likes a concept or declares "Intention to buy." That’s just applause. Saying you like it doesn’t mean you’ll switch to it.
Linescale follows real world decision making. An Acceptor directly compared your concept to what she is doing today. An Acceptor indicated your concept is better than what she is doing today.
(a) "distribution" is 100% and in stock
(b) communication with sufficient frequency reached the population
(c) messaging represents and communicates the product as tested
(d) pricing is at or below the price indicated as acceptable
(e) competition does not effectively counter your marketing*
*Nielsen Bases factors in estimates of likely marketing variables — a far more elaborate and lengthy process. Linescale assumes you market effectively.