« previous next »

Author Question: Holding a variable constant is a technique for removing one threat to ____ but it can limit the ____ ... (Read 152 times)

ap345

  • Hero Member
  • *****
  • Posts: 537
on: Jun 19, 2018
Holding a variable constant is a technique for removing one threat to ____ but it can limit the ____ of an experiment.
 
  a. internal validity; external validity
  b. external validity; internal validity
  c. internal validity; reliability
 d. external validity; reliability

Question 2

In sampling notation, N refers to the ____.
 
  a. number of cases in the sampling frame
  b. number of cases in the sample
 c. number of possible subsets
 d. sampling fraction


huda

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jun 19, 2018
Answer to Question 1

a

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

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?

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

The paper test involves holding a piece of paper near the tailpipe of an idling engine. A good ... The paper test involves holding a piece of paper near the tailpipe of an idling engine. A good ...
The vehicle’s fuel pump is disabled by removing its relay or fuse. In some cases, it may be ... The vehicle’s fuel pump is disabled by removing its relay or fuse. In some cases, it may be ...
This is what was found when removing an air filter from a vehicle that had a lack-of-power concern. ... This is what was found when removing an air filter from a vehicle that had a lack-of-power concern. ...
Two techniques for holding and inserting an otoscope Two techniques for holding and inserting an otoscope
Kids holding hands in school Kids holding hands in school
Americium-243 has a decay constant of 9.39 × 10-5 years-1. How long will it take Americium-243 has a decay constant of 9.39 × 10-5 years-1. How long will it take
Video: Interspecific Competition Relationship - Competitive & Niche Differentiation

For a complete list of videos, visit our video library