Watch the video for an overview of the differences between primary data and secondary data: Primary data is data that is collected by a researcher from first-hand sources, using methods like: Creative works (paintings, movie reels, music etc.) Diaries, Experiments performed by you, the researcher, Letters, Surveys and censuses, Interviews. A primary source is collected … Read more
Randomized Clinical Trials > Primary Endpoint Contents: Primary Endpoint Surrogate Endpoint Other Types of Endpoint (Secondary, Binary, Hard/Soft) What is a Primary Endpoint? A primary endpoint is the main measurement a trial is trying to assess. It answers the most important question in the trial. For example: In a weight loss study: What is the … Read more
Contents: What is Experimental Design? Variables Validity in Experimental Design Types of Design Related Topics 1. What is Experimental Design? Watch the video for an overview of experimental design: Experimental design is a way to carefully plan experiments in advance so that your results are both objective and valid. The terms “Experimental Design” and “Design … Read more
Data Analysis > Multidimensional Scaling Contents: What is Multidimensional Scaling? When to Use MDS A Simple Example Basic steps: Potential Pitfalls Notation History and Subtypes Multidimensional scaling vs. Factor Analysis Similar Techniques What is Multidimensional Scaling? Multidimensional scaling is a visual representation of distances or dissimilarities between sets of objects. “Objects” can be colors, faces, … Read more