Answer:
5.7
Explanation:
Density is d=m/v
3=17/v
3/17=v
5.66666666666666666666666666666666666666666666666666....
The technique to improve internal validity is D) Addition of a control group.
<h3>What is
internal validity?</h3>
Internal validity serves as the study which bring about the establishment of a trustworthy cause-and-effect relationship that can be found in treatment and an outcome.
it should be noted that Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.
Learn more about internal validity on:
brainly.com/question/968894
#SPJ1
COMPLETE QUESTOIN:
Which of the following is a technique to improve internal validity ____________?
A) Experimenter expectancy
B) Participant bias
C) Use of a confederate
D) Addition of a control group
Q1- Urgent / Important
Q2- Writing a paper that is due in 3 hours
(others can wait as no serious consequences but you could fail n get bad mark if you don't complete the paper. It's a deadline issue.)
Answer:
I think it is true
Explanation:
the moon goes over the sun and so it creates a solar eclipse
A group of organs are called a system
