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Crash Course on URRAs
Reading Time: 4 minutes As human factors specialists in the medical device industry, our world is centered around mitigating use-related risks. Ultimately we hope to design a device that is safe and effective to use. An important aspect of…
Means and Medians: When To Use Which
Reading Time: 4 minutes It is an age-old question in data representation: should I use the mean or the median? Statistical analyses can be a slippery slope. Many human-centered research professionals must utilize a deep level of understanding…
Data Types: How do they work?
Reading Time: 3 minutes Data Types: Introduction Back in 1946, a Psychologist named Stanley Smith Stevens determined that there were four distinct data types: ratio, interval, ordinal, and categorical/nominal. These data types categorize different variables and give a direction…