Monadic-testing technique involves one product’s demonstration of the respondent and to identify opinion is about it, without comparison with other products. Methodology is used for testing the properties of any products. If you use this technique in the price survey, respondents were given a single question about the price (buy/not buy). To get a more accurate measurement of the elasticity of demand and study the design with multiple cells (Monadic cells), when different respondents exhibit different price.
The technique is used mainly for confirmation of already approved concepts. Modification techniques include serial Sequential monadic-test (Serial demonstration of two or more products) and Protomonadic-test (paired comparison test, following the demonstration of a product), etc.