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 196 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?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

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.

Listening to Normal Speech or Its Prosodic Components Functional MRI scans were made while subjects Listening to Normal Speech or Its Prosodic Components Functional MRI scans were made while subjects
Young adults with low levels of parental support report significantly better scores on measures of ... Young adults with low levels of parental support report significantly better scores on measures of ...
The four levels of protein structure The four levels of protein structure
Pituitary Hormone Levels Pituitary Hormone Levels
Importance of Considering Gestalt Principles in Product Design (1 of 2) Importance of Considering Gestalt Principles in Product Design (1 of 2)
Sex-influenced inheritance of beard appearance in goats Sex-influenced inheritance of beard appearance in goats
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

For a complete list of videos, visit our video library