CCJ 4700 Exam 2 Stewart Questions and Correct Answers | Latest Update
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Module
CCJ 4700
Institution
CCJ 4700
What are the 3 components of a classical experiment?
-:- 1)Pre & Post-Testing
2)Experimental & Control groups
3)Random Assignment
____________ Assignment Is a central feature of the classical experiment
-:- Random Assignment
Random assignment...
-:- Reduces sources of bias & Creates equ...
-Selection Bias(volunteers may choose to participate in certain study)
Why do we use sampling?
✓ -:- Bc... Its often not possible to collect info f rom all persons we wish
to study & Its often not necessary
Two things to do when selecting samples:
✓ -:- Select samples to represent a larger pop. of people/things &
generalize from a sample to an unobserved population the sample is
intended to represent
When is a sample "representative" of the population?
✓ -:- When the aggregate characteristics of the sample closely approx.
those same characteristics in the population
2 adv. of population samples:
2|P a g e | G r a d e A + | 2 0 2 0 2 5
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