I’m studying for my Statistics class and need an explanation.
Create a post describing an experiment you would like to see done. Pick something you’re interested in knowing more about. To earn all the points you need to state the variable of interest, how you would pick a random sample, how to create a control group, and blinding of subjects and researchers if applicable. Describe the population your sample comes from, the instrument you would use to measure the subjects, point out any possible lurking variables, and describe the population you could infer your experimental results to.
An example might be…I am interested in the variable of exercise in weight loss. I would randomly select 100 people in Lenexa and ask 50 of them to exercise for 30 minutes 3 times a week for 3 months. The other 50 would do no exercise and the difference in weight would be measured for each group and compared. The instrument is a scale, and some possible lurking variables might be sleep pattern, stress levels, and type of diets. This would be a single blinded study with the researchers not knowing which group the subjects were in. The results of this study could be inferred to the population of people in Lenexa, Ks.