Dr. Marissa Duvall holds a PhD in Statistics and specializes in quantitative data analysis for students at all academic levels. With expertise in hypothesis testing, regression analysis, and structural equation modeling (SEM) using SPSS, SPSS-AMOS, R, Python, and Stata, she has successfully guided over 400 students in analyzing and interpreting their research data.
Cronbach’s alpha is one of the most popular statistics used to check the reliability of a questionnaire or test. It…
SPSS (Statistical Package for the Social Sciences) is one of the most widely used tools for analyzing data in academic…
Determining the right sample size is important in research and surveys. A small sample may not reflect the real situation,…