Psychologists want to study how people can tolerate pain by soaking their hands in water at 40 degrees Fahrenheit and testing how long it lasts. The researchers performed two studies:

a. In the study, subjects placed their hands in water for the length of time they were able to maintain: Lisa 1:Stacia 2:Maritza3:Valeria 4 and Sophia 5. What level of measurement is used here?

b. In Study 2, the tolerance was calculated in seconds when placed in water and the results were as follows: Lisa 111.3 seconds; Stacia 97.8 seconds; Maritza 71.3 seconds: Valeria 18.7 seconds and Sophia 13.6 seconds. What level of measurement is used here?