Statistical Analysis and Common Problems

Abstract

Data analysis results in statistical conclusion validity. Types of statistical analysis should be selected as appropriate for research questions or research objectives, research design, and levels of measurement. Threats to statistical conclusion validity include: 1) low statistical power due to inadequate sample size, inappropriate level of significance, hypothesis or type of statistical analysis, 2) violation of assumption, and 3) Fishing the error rate problem. Common problems in data analysis are in the process of data collection, data management, data analysis method, interpretation, presentation or dissemination of research.