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

Author Question: In chapter 7, we used a between subjects design to see if caffeine influenced levels of alertness. ... (Read 202 times)

segrsyd

  • Hero Member
  • *****
  • Posts: 530
on: Jul 13, 2018
In chapter 7, we used a between subjects design to see if caffeine influenced levels of alertness.
 
  We had three groups of participants: participants who received 8 ounces of a caffeinated beverage, participants who received 24 ounces of a caffeinated beverage, and participants who received no caffeine. If this was a between subjects design with 30 total participants, how many participants would be in each condition?
 
  a. 10
  b. 15
  c. 20
  d. 25

Question 2

According to the text, John believed that there were no differences in writing abilities between himself and Jenn. John is stating what kind of hypothesis?
 
  a. null
  b. directional
  c. exhaustive
  d. nondirectional


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 13, 2018
Answer to Question 1

A

Answer to Question 2

A


segrsyd

  • Hero Member
  • *****
  • Posts: 530
Reply #2 on: Jul 13, 2018
Correct answers!


bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Reply #3 on: Jul 13, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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.

Levels of DNA packaging to create a chromosome Levels of DNA packaging to create a chromosome
Spinal cord—levels of injury; A, areas of sensory function (dermatomes); B, areas of motor function. Spinal cord—levels of injury; A, areas of sensory function (dermatomes); B, areas of motor function.
Blood Glucose Levels Blood Glucose Levels
Levels of Ghrelin in Human Blood Plasma Levels of Ghrelin in Human Blood Plasma
A Jolt of Caffeine A Jolt of Caffeine
Teen eating habits are often influenced by peers and social settings Teen eating habits are often influenced by peers and social settings
Video: Lower Limb Arteries Animation

For a complete list of videos, visit our video library