Scientists use many techniques to decrease bias in studies. What ...

[washai]

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

[momo1250]

Answer to Question 1

a

Answer to Question 2

d

[washai]

Thanks for the timely response, appreciate it

[atrochim]

Excellent