[Answered] A cross-sectional design comparing three different ages would require three separate groups of ...

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sjones

Hero Member
Posts: 520

on: Jun 19, 2018

A cross-sectional design comparing three different ages would require three separate groups of participants.

a. True
b. False
Indicate whether the statement is true or false

Question 2

When the tests (or observers) used on the posttest and the pretest differ, there is a(n) ____ threat.

a. history
b. mortality
c. instrumentation
d. regression

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Qarqy

Sr. Member
Posts: 313

Reply #1 on: Jun 19, 2018

Answer to Question 1

True

Answer to Question 2

c

sjones

Hero Member
Posts: 520

Reply #2 on: Jun 19, 2018

Thank you!

Qarqy

Sr. Member
Posts: 313

Reply #3 on: Jun 19, 2018

Happy to help

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