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

Author Question: A researcher begins a study with 250 subjects, and 50 subjects drop out before the study is ... (Read 110 times)

Hungry!

  • Hero Member
  • *****
  • Posts: 1,071
on: Jul 8, 2018
A researcher begins a study with 250 subjects, and 50 subjects drop out before the study is concluded. The researcher will declare 20 as the sample
 
  a. acceptance rate.
  b. attrition rate.
  c. refusal rate.
  d. retention rate.

Question 2

A pilot study reveals a wide variation in measurement values among subjects with an overall mean value that is higher than among the general population. By increasing the sample size in a subsequent study, the researcher expects to
 
  a. decrease the variation of scores among subjects.
  b. increase the variation of scores among subjects.
  c. decrease the mean value of scores among subjects.
  d. increase the mean value of scores among subjects.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jackie

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: B

Answer to Question 2

ANS: A


Hungry!

  • Member
  • Posts: 1,071
Reply 2 on: Jul 8, 2018
:D TYSM

lindahyatt42

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
William Masters and Virginia Johnson are among the most influential researchers in the history of th William Masters and Virginia Johnson are among the most influential researchers in the history of th
Mary Cassatt, Study for In the Loge. Mary Cassatt, Study for In the Loge.
(a) As an engine is accelerated under a load, the engine vacuum drops. This drop in vacuum is ... (a) As an engine is accelerated under a load, the engine vacuum drops. This drop in vacuum is ...
Two behavioral paradigms that are used extensively in the study of the neural mechanisms of ... Two behavioral paradigms that are used extensively in the study of the neural mechanisms of ...
Group Study Group Study
Video: Interview with Person who has Schizophrenia

For a complete list of videos, visit our video library