Suppose researchers are interested in the relationship between daily intake of caffeine and seizures. There are four possible values for this variable:
Category1) 0-99 mg
Category2) 100-299 mg
Category3) 300-499 mg
Category4) ≥ 500 mg
The reference category to which each of the others will be compared is the value 0-99
Organize these categories into a set of dummy variables. Describe what a 1 and 0 indicate for each dummy variable.
Suppose researchers are interested in the relationship between daily intake of caffeine and seizures. There are...
8. Researchers were interested in the relationship between daily exercise and perceived quality of life. Interpret the scatterplot below using the research variables. It has a positive correlation. Is the answer just that there is a strong positive correlation? The graph in the quesiton is a scatter plot w/ what appears to be a strong correltion to a climbing left to rigth line. (can't paste the graph here)
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...