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 120 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
Thanks for the timely response, appreciate it

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Flipper tags have been extensively used in the study of penguin population dynamics. Flipper tags have been extensively used in the study of penguin population dynamics.
Biology deals with the study of the many varieties of living organisms. Biology deals with the study of the many varieties of living organisms.
Leonardo da Vinci, Study for a Sleeve. Leonardo da Vinci, Study for a Sleeve.
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 ...
Ramey's study, children from poverty-level families IQ experiment Ramey's study, children from poverty-level families IQ experiment
The reason why I do not study The reason why I do not study
Video: Stretch reflex & Tendon reflex

For a complete list of videos, visit our video library