Dr.Hani Tiếng Việt

Knowledge topic

Research Methods

Articles supporting the development of research questions, models, methods, measurement, data analysis and publication arguments.

Strategy, markets and data illustration

Articles by topic.

Test the Questionnaire Before Surveying

A purposeful questionnaire pretest reveals unclear questions, broken response flows, and technical risks before the main data collection begins.

Ask One Thing per Survey Question

Combining several issues in one survey item makes ratings difficult to interpret. Separate the issues, specify the period, and test understanding.

Check Data Before You Test It

Statistical testing cannot repair a faulty dataset. Before running a model, check the unit of analysis, missing values, coding, outliers, and the trail back…

How Many Interviews Are Enough?

Qualitative research has no universal sample size. Adequacy must be explained through the study purpose, participant diversity, data quality, and the depth of understanding…

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