« previous next »

Author Question: Extraneous variables need to be controlled to ensure that the experiment is externally valid. ... (Read 72 times)

Alainaaa8

  • Hero Member
  • *****
  • Posts: 576
on: Jun 29, 2018
Extraneous variables need to be controlled to ensure that the experiment is externally valid.
 
 Indicate whether the statement is true or false

Question 2

A combination of two or more probability sampling techniques is called a(n) _____ sample.
 Fill in the blank(s) with correct word


covalentbond

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 29, 2018
Answer to Question 1

F
Controlling extraneous variables will assure researchers of internal validity, not external validity.

Answer to Question 2

multistage area


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

The experiment of Plaxton and his colleagues demonstrated that plants can alter their metabolism in The experiment of Plaxton and his colleagues demonstrated that plants can alter their metabolism in
The Meselson-Stahl Experiment The Meselson-Stahl Experiment
The Meselson-Stahl Experiment p1 The Meselson-Stahl Experiment p1
Mixing schematic Diagram CHE 415 unit operations experiment apparatus Mixing schematic Diagram CHE 415 unit operations experiment apparatus
Pill organizers can help reduce confusion and ensure that medications are taken at the appropriate ... Pill organizers can help reduce confusion and ensure that medications are taken at the appropriate ...
A time map of the genes studied in the experiment A time map of the genes studied in the experiment
Video: baroreceptors

For a complete list of videos, visit our video library