Objective: To assess the validity of a semi-quantitative food-frequency questionnaire (SFFQ) used in a large nation-wide dietary survey among 12-month-old Norwegian infants. Methods: The SFFQ was ...

Questionnaires can provide businesses with valuable information about potential and actual customers. As a small-business owner, you aren't likely to have the resources of a large corporation that can ...

Objective: To develop a food frequency questionnaire for adolescents (AFFQ) and demonstrate its relative validity. Design: The final version of the AFFQ was composed of 76 food items previously ...

Quantitative business research focuses on quantifying behaviours, opinions, trends, and other variables by collecting and analysing measurable, numerical data. It answers questions related to “how ...

Market questionnaires are a form of quantitative, primary market research that can provide small business owners with specific information about their customers’ needs. Whether conducted over the ...

Questionnaires are widely used for data collection in health research and evaluation. Their design, use and analysis are key to accurate, comprehensive and complete data. This course is an ...

Effective organizations are efficient, productive, and exhibit strength in leadership, decision making, people, work processes and the corporate culture of the organization. While each element is ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. (Related post: How focus groups informed our study about nationalism and ...