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

Author Question: Lindsey is analyzing her data. For her analysis, what level of power should she try to achieve? ... (Read 89 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
on: Jul 13, 2018
Lindsey is analyzing her data. For her analysis, what level of power should she try to achieve?
 
  a. .50
  b. .80
  c. .90
  d. .75

Question 2

Many colleges and universities offer a freshman seminar class to prepare students for college life.
 
  Colleges put a great deal of money into these classes and want to know if the freshman seminar classes (the independent variable) have an influence on the students' attitudes and behaviors (the dependent variable). This is commonly measured by conducting a survey at the end of the first year about information covered in the classes. Which of the following threats to internal validity could influence survey results?
 
  a. history
  b. regression to the mean
  c. maturation
  d. selection


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

reelove4eva

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 13, 2018
Answer to Question 1

B

Answer to Question 2

C


kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
Reply #2 on: Jul 13, 2018
Thank you :)


reelove4eva

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 13, 2018
Happy to help you


« previous next »
 

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

The carbon cycle. Numbers are storage as 1015 g or fluxes as 1015 g per year (data from Schlesinger The carbon cycle. Numbers are storage as 1015 g or fluxes as 1015 g per year (data from Schlesinger
Thyroid scan. The right image is the data from a thyroid scan, printed on a superimposed map of the Thyroid scan. The right image is the data from a thyroid scan, printed on a superimposed map of the
Durable power of attorney. Durable power of attorney.
Analysis of the dihybrid crosses Analysis of the dihybrid crosses
Power Grip and Precision Grip Power Grip and Precision Grip
Allelic phase analysis in human families A and B Allelic phase analysis in human families A and B
Video: The Krebs Cycle Animation

For a complete list of videos, visit our video library