Scientists use many techniques to decrease bias in studies. What do scientists call the technique in which the participants do not know if they are receiving the actual treatment or a fake?
a. Blinding
b. Randomization
c. Use of control groups
d. Use of placebos
Question 2
Jim, a 21-year-old, medium-frame 62 senior weighing in at 205 lbs is a very active varsity wrestler majoring in psychology. He is participating in a Hydration Study that includes the collection of the following data: body composition analysis utilizing the Bod Pod, food/beverage intake via dietary assessment questionnaire, urine sample, and analysis of saliva. The following data have been provided to assist in answering the questions.
Bod Pod Results:
59 body water
86.7 lean mass
13.3 fat mass
Reference Values for Bod Pod:
Risky (high body fat) = men: >30; women: >40
Excess fat = men: 21-30; women: 31-40
Moderately lean = men: 13-20; women: 23-30
Lean = men: 9-12; women: 19-22
Ultra lean = men: 5-8; women: 15-18
Risky (low body fat) = men: <5; women: <15
24-Hour Recall:
3540 kcalories
177 grams protein
118 grams fat
Males: EER = 662 - 9.53 x Age (y) + PA x (15.91 x weight in kg) + (539.6 x height in m)
PA Values: Sedentary = 1.0, Low Active = 1.11, Active = 1.25, Very Active = 1.48
How many total kcalories would Jim require post season to meet his estimated energy requirements (EER)?
a. 2958
b. 3325
c. 3665
d. 4157
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