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

Author Question: A researcher consented 400 subjects, but 12 dropped out of the study before it was completed. The ... (Read 49 times)

bio_gurl

  • Hero Member
  • *****
  • Posts: 524
on: Jul 8, 2018
A researcher consented 400 subjects, but 12 dropped out of the study before it was completed. The rest finished the study. What was the sample retention rate?
 
  a. 388
  b. 38.8
  c. 3
  d. 97

Question 2

A researcher consented 75 subjects, but 15 dropped out of the study while it was still in progress. What was the sample attrition rate?
 
  a. 15
  b. 15
  c. 20
  d. 75


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

micaelaswann

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: D
Sample retention rate formula = number subjects completing study  sample size  100.

Answer to Question 2

ANS: C
Sample attrition rate formula = number subjects withdrawing  sample size  100.
For example, if a study had a sample size of 160 and 40 people withdrew from the study, the attrition rate would be 25.


bio_gurl

  • Member
  • Posts: 524
Reply 2 on: Jul 8, 2018
Wow, this really help

FergA

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

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?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Aerial photo showing the placement of 24 study plots, each 50 m by 50 m, in the Chihuahuan Desert ne Aerial photo showing the placement of 24 study plots, each 50 m by 50 m, in the Chihuahuan Desert ne
Pablo Picasso, Medical Student, Sailor, and Five Nudes in a Bordello (Compositional study for Les ... Pablo Picasso, Medical Student, Sailor, and Five Nudes in a Bordello (Compositional study for Les ...
A completed CMS-1500 (02/12) claim for Procedure 15-5 A completed CMS-1500 (02/12) claim for Procedure 15-5
Case Study of a Midlatitude Cyclone Case Study of a Midlatitude Cyclone
Case Study of a Midlatitude Cyclone Case Study of a Midlatitude Cyclone
How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ... How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ...
Video: Epinephrine/NE (heart rate, altered blood flow, glycogenolysis & bronchodilation)

For a complete list of videos, visit our video library