Which statement is not true about the research design section of the marketing research report? A description of the theoretical foundations that guided the research should be included. This section of the report should justify the specific methods selected. The topics should be presented in a non-technical, easy to understand manner. The technical detail should be included in an appendix. Which statement is not true if deciding on the number of scale categories to use in a non-comparative itemized rating scale? If the respondents are not very knowledgeable or not involved with the task, fewer categories should be used. Traditional guidelines suggest that the appropriate number of categories should be seven plus or minus two: between five and nine. How the data are to be analyzed and used should also influence the number of categories. The smaller the number of scale categories, the finer the discrimination among stimulus objects that is possible