« previous next »

Author Question: _________ variables are not controlled for in the experiment but may have an influence on the ... (Read 59 times)

anjilletteb

  • Hero Member
  • *****
  • Posts: 569
on: Jul 13, 2018
_________ variables are not controlled for in the experiment but may have an influence on the dependent variable because they vary with the levels of the independent variables.
 
  a. Extraneous
  b. Nuisance
  c. Attrition
  d. History

Question 2

A probability sampling technique in which a researcher begins by identifying subgroups and then randomly samples from each groups is called probability sampling.
 
  a. stratified
  b. cluster
  c. simple
  d. systematic


joneynes

  • Sr. Member
  • ****
  • Posts: 376
Reply #1 on: Jul 13, 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?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

The Meselson and Stahl experiment showing that DNA replication is semiconservative The Meselson and Stahl experiment showing that DNA replication is semiconservative
A model of anxiety in which stressful events or a changing mental condition can produce unfavorable A model of anxiety in which stressful events or a changing mental condition can produce unfavorable
Measuring Attachment Styles: The Strange Situation Experiment Measuring Attachment Styles: The Strange Situation Experiment
Schedule for Controlled Substances Schedule for Controlled Substances
Optical and Radiation Pyrometry Experiment Optical and Radiation Pyrometry Experiment
The Taylor–Woods–Hughes experiment The Taylor–Woods–Hughes experiment
Video: Bacteriophage (Virus) - Mice Experiment

For a complete list of videos, visit our video library