Dr. Ortega took a wide sample of people and timed them running a mile. There is a lot of variability in time, with some runners taking 5 minutes and others 20 minutes or more. Analyzing this further, Dr. Ortega wants to know what factors influence running speed? She hypothesizes that physical fitness and age play important roles, as do physical health and weight. For further clarity, Dr. Ortega calculates r2 for each variable and finds that the effect size for physical fitness is 29%.
In 50 words or less, explain what this means.
The effect size of 0.29 means that there is a medium effect of physical fitness, age, health, and weight on running speed.
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Dr. Ortega took a wide sample of people and timed them running a mile. There is...