This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Twenty volunteers were assigned at random to one of two groups (10 people in each group). One group ... (Read 479 times)

laurencescou

  • Hero Member
  • *****
  • Posts: 593
on: Jul 24, 2018
Twenty volunteers were assigned at random to one of two groups (10 people in each group). One group would take Vitamin C for two weeks, while the second group would take a placebo. At the end of the study, the proportion of colds in the two groups will be compared. What is the explanatory variable in the study?
 a. Getting a cold (or not)
  b. Taking Vitamin C (or a Placebo)
  c. Getting 8 hours of sleep a night (or not)
  d. Exposure to other people with colds (or not)

Question 2

Twenty volunteers were assigned at random to one of two groups (10 people in each group). One group would take Vitamin C for two weeks, while the second group would take a placebo. At the end of the study, the proportion of colds in the two groups will be compared. What is the response variable in the study?
 a. Getting a cold (or not)
  b. Taking Vitamin C (or a Placebo)
  c. Getting 8 hours of sleep a night (or not)
  d. Exposure to other people with colds (or not)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macagn

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

A


laurencescou

  • Member
  • Posts: 593
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

amandalm

  • Member
  • Posts: 306
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Splicing mechanisms in group I and group II self-splicing introns and spliceosom Splicing mechanisms in group I and group II self-splicing introns and spliceosom
Older people who experienced stressful events in their younger years may show personal growth and ... Older people who experienced stressful events in their younger years may show personal growth and ...
Except for interaction within families, age groups in Western culture are usually kept fairly ... Except for interaction within families, age groups in Western culture are usually kept fairly ...
Groups of Sheep Groups of Sheep
Married or partnered couples within a visible minority mixed group Married or partnered couples within a visible minority mixed group
Self-splicing of group I introns Self-splicing of group I introns
Video: Bone Healing Animation

For a complete list of videos, visit our video library