This topic contains a solution. Click here to go to the answer

Author Question: A Pearson correlation of r = -0.25 indicates that a graph of the data would show points ____. a. ... (Read 123 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
A Pearson correlation of r = -0.25 indicates that a graph of the data would show points ____.
 
  a. clustered close to a line that slopes up to the right
 b. clustered close to a line that slopes down to the right
 c. widely scattered around a line that slopes up to the right
  d. widely scattered around a line that slopes down to the right

Question 2

A double pretest design is particularly attractive when ____.
 
  a. the researcher is evaluating a program that has already begun
  b. the unit of study is a community rather than an individual
 c. it is important that those who most need the treatment receive it
  d. there are concerns about selection-maturation effects



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tjayeee

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

d

Answer to Question 2

d




tfester

  • Member
  • Posts: 534
Reply 2 on: Jun 19, 2018
Great answer, keep it coming :)


dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

For a complete list of videos, visit our video library