Question

In this lab, you will perform a glucose tolerance test with all of the students in the class who agree to participate. You will use the data from the experiment to examine two different research questions. We will provide you with the objective for each research question and then ask you to answer a set of pre-lab questions for each of the experimental objectives.

Experimental Objective 2: Determine whether or not there is a difference in the dependent measures between the 0-minute and 90-minute time points.

a. What is the independent variable?

-blood glucose levels

-glucagon release

-insulin release

-time

-urine glucose levels

b. What is(are) the dependent variable(s)? Choose ANY that apply.

-blood glucose levels

-glucagon release

-insulin release

-time

-urine glucose levels

-75 g glucose solution

c. What is the most appropriate research question for experimental objective #2?

-Are blood and urine glucose levels different at 90 minutes after ingesting a 75 g glucose solution as compared to those in a fasting state in college students?

-Compared to a fasted state, how does drinking a 75 g glucose solution change blood and urine glucose levels over time (90 minutes) in college students?

-Is there a difference in blood and urine glucose levels measured over time in college students?

-What is the effect of drinking a 75 g glucose solution on blood and urine glucose in college students?

Answer 1

(A) independent variable is still the time period as time value is not dependent on any other variable. So, option D is correct

(B) Dependent variables are urine and blood glucose levels as only these values are dependent on the time period (independent variable), So option A and E are correct

(C) option A is the most appropriate answer as we have to determine the difference betweent he blood and urine glucose level at the 0 min (fasting state) and 90 minutes after ingesting a 75 g glucose solution.

So, option A is correct research question for experimental objective #2