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

Author Question: One of the authors of your textbook conducted a study on monitor size and reaction time. The ... (Read 38 times)

rlane42

  • Hero Member
  • *****
  • Posts: 594
on: Jul 13, 2018
One of the authors of your textbook conducted a study on monitor size and reaction time. The research matrix is given below.
 
  17 inch 19 inch 21 inch
  25 participants 25 participants 25 participants
  If you wanted to give every participant in the study a piece of paper with the contact information of the researchers, how many pieces of paper will you need for this between subjects design?
 
  a. 25
  b. 50
  c. 75
  d. 100

Question 2

When a change in the dependent variable could be due to an event beyond the researcher's control, _________ is a threat to internal validity.
 
  a. history
  b. maturation
  c. regression to the mean
  d. selection


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 13, 2018
Answer to Question 1

C

Answer to Question 2

A


rlane42

  • Member
  • Posts: 594
Reply 2 on: Jul 13, 2018
Excellent

atrochim

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Superior view of heart valves illustrating position, size, and shape of each valve. Superior view of heart valves illustrating position, size, and shape of each valve.
Students rated their grandparents on a scale from 1 to 4 based on emotional closeness, time spent ... Students rated their grandparents on a scale from 1 to 4 based on emotional closeness, time spent ...
Leonardo da Vinci, Study of Human Proportion: The Vitruvian Man. Leonardo da Vinci, Study of Human Proportion: The Vitruvian Man.
A clock is showing the time as exactly 3:00 p.m. and 25 s. A clock is showing the time as exactly 3:00 p.m. and 25 s.
Problem Solving – Energy Changes in Chemical Reaction Problem Solving – Energy Changes in Chemical Reaction
A little part of textbook image A little part of textbook image
Video: Bond in biological molecules (Ionic, Covalent and Hydrogen bonds)/ How atoms bond?

For a complete list of videos, visit our video library