Category: Statistics

Statistical analysis solves complicated problems that create a big impact across the fields.

Quasi-Experimental Designs in Research

Quasi-Experimental Designs in Research, The gold standard in experimental design is the randomized controlled trial (RCT) as, when used properly, it can demonstrate causality. However, in many cases true randomization is not feasible. While...

Sensitivity Analysis in Experimental Design

Sensitivity Analysis in Experimental Design, In experimental design and analysis, sensitivity analysis is a critical tool for assessing the robustness and reliability of results. It allows researchers to explore how variations in key parameters...

Understanding Type I and Type II Errors

Understanding Type I and Type II Errors, When working with data, the goal is often to draw meaningful conclusions based on the available information. To infer insights about a broader population from sample data,...

Statistical Measures of Text Similarity

Statistical Measures of Text Similarity, It will come as no surprise when I say that text data has become abundant with the continued advancement of the technology necessary to facilitate its creation and distribution....

Effect Size in Data Analysis

Effect Size in Data Analysis, When studying statistics, we often fixate on whether results are “statistically significant.” However, effect size – a concept that tells us how much something matters rather than just whether...

Choosing the Right Experimental Design for Research

Choosing the Right Experimental Design for Research, Selecting the appropriate experimental design is crucial in guiding the entire research process. The experimental design dictates how data is collected, which variables are explored, and how...

Understanding Randomized Block Design

Understanding Randomized Block Design, Experimental designs is the cornerstone of reliable and unbiased research, enabling researchers to test hypotheses efficiently. Among the various methods of experimental design, Randomized Block Design (RBD) stands out as...

Effect Sizes for T-Test and ANOVA

Effect Sizes for T-Test and ANOVA, Effect sizes are the most important outcome of empirical studies. They provide a standardized metric that allows researchers to communicate the practical significance of their results, draw meta-analytic...

Exponential Distribution and Applications

Exponential Distribution and Applications, In the realm of probability and statistics, the exponential distribution, also known as the negative exponential distribution, plays a significant role in describing the time between events in a Poisson...

Chi-Square Distribution and p value

Chi-Square Distribution and p value, Understanding Chi-Square Statistics and Shaded Regions in Tables In various statistical analyses, tables often display chi-square (χ²) statistics to represent the differences between observed and expected values. The shaded...