1. Kotler
P.
& Armstrong
G. (2021). Principles of Marketing (18th ed.). Pearson. In Chapter 8
"New Product Development and Product Life-Cycle Strategies
" the section on "Test Marketing" states
"Test marketing is the stage at which the product and its proposed marketing program are tested in realistic market settings." (p. 259).
2. Grewal
D.
& Levy
M. (2020). Marketing (7th ed.). McGraw-Hill Education. Chapter 12
"Developing New Products
" describes test marketing as a method to "test the market for the new product with a trial batch of products... A test marketing effort uses all the elements of the marketing mix; it includes promotions such as advertising and coupons
just as if the product were being introduced nationally." (p. 389).
3. Iacobucci
D. (2021). Marketing Management (6th ed.). Cengage Learning. Chapter 6
"New Products and Innovation
" defines test marketing as a process where "a company launches a new product in a small part of the target market to test its marketing plan and learn how customers will respond." (p. 134).