We then address the basic issues-power and average sample size-for the assessment of these tests in order to discuss the properties of group sequential test procedures proposed in the literature. The notation and the construction of statistical tests that are based on the repeated significance testing approach are described in the following section. We start with a brief historical survey of group sequential tests. This is because each respondent only evaluates a single stimulus, so the cost of the survey increases proportionally to the number of concepts tested.This chapter focuses on the conceptual background of the “classical” group sequential tests, i.e., the repeated significance testing approach. If you want to analyze more than one stimulus monadically, larger sample sizes are required, thus increasing the overall cost of the research.If you want to obtain an extra indicator, you can choose to add a final block that shows all the stimuli, and you can ask for a preference.launching as many monadic studies as there are stimuli).
The results obtained can be analyzed independently for the tested product or compared with other stimulus/s whose results have been obtained in the same way but with another group of consumers belonging to the same target (i.e. Assessing only one stimulus is closer to reality, and the opinion obtained is pure – whereas if it is considered together with other alternatives, the views are biased. It’s the purest design since consumers will see the product/ad finally launched, not the other candidates. In this case, the stimulus is not compared to any other stimulus. The stimulus can be a product, a concept, an advertisement, a pack, or a name. Monadic testing is defined as a study where respondents evaluate a single stimulus. This article defines each survey design option, presents the pros and cons, and which is the best option in each case. The main types of evaluation are monadic test, sequential monadic test, and comparative test. Market research includes different techniques when evaluating various alternatives: concepts, packs, products, advertising campaigns, etc. Careers Apply to be part of our journey. About Us Our story: what we value and represent. Market Research Gather insights from recent studies. Knowledge Base All you need to know of all Zinklar’s features. eBooks & Guides Best practices for marketing professionals. Blog Learn about methods, techniques and skills. Brand Health Track, monitor and compare brand performance. Product Managers Cutting-edge, precise research for producters. Creative Advertising Test, refine and analyze messaging & campaigns. Brand Managers Proven, rapid insights for dynamic brands. Methodologies Access the insights you crave, unrestricted. Product Innovation Develop new concepts and strategy with confidence. Insights Pros Swift, scalable data for agile insights teams. Research type One platform to cover all your research needs. Market Understanding Dominate the category with in-depth insights. Marketers Actionable insights to drive marketing success. Flexible Solutions Ignite a transformative research culture. Global Coverage Reach 140M consumers in 80 countries. Quality First Harness reliable data for accurate insights. Our Platform Connect to customers with scalable agile research. 
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