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CCJ 4700 Exam 2 Stewart Questions and Correct Answers | Latest Update

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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...

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  • September 17, 2024
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  • CCJ 4700
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2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!




CCJ 4700 Exam 2 Stewart Questions and
Correct Answers | Latest Update
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 equivalent groups




Criteria for causality:


✓ -:- 1)Cause must come before effect

✓ 2)We have to show cause(x) came before effect(y)

✓ 3)We have to rule out rival explanations




Threats to internal validity:
1|P a g e | G r a d e A + | 2 0 2 0 2 5

, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!



✓ -:- -History(past events may confound results)

-Testing(Retesting influences peoples behavior)


-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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