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GAQM CLSSBB-001 Exam - Topic 5 Question 74 Discussion

If an experiment has 5 factors and no replicates for a 2-level Experimental Design with 16 experimental runs which statement is incorrect?
C) The Main Effects for the 5 factors are not aliased or confounded but the 2-way interactions are confounded with the 3-way interactions
A) The Experimental Design is half-fractional
B) The Main Effects are confounded with only 4-way interactions
D) The experiment has 8 experimental runs with the first factor at the high level

GAQM CLSSBB-001 Exam - Topic 5 Question 74 Discussion

Actual exam question for GAQM's CLSSBB-001 exam
Question #: 74
Topic #: 5
[All CLSSBB-001 Questions]

If an experiment has 5 factors and no replicates for a 2-level Experimental Design with 16 experimental runs which statement is incorrect?

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Suggested Answer: C

by Tegan at Jul 31, 2025, 04:15 PM

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Anglea
8 months ago
Not sure about B, feels off to me.
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Maile
8 months ago
C is tricky, but I think it's correct.
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Micheline
8 months ago
Wait, how can D have 8 runs? That doesn't add up!
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Lynelle
9 months ago
I agree, B seems right too.
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Chandra
9 months ago
A is definitely half-fractional.
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Shelia
9 months ago
I’m pretty sure that if there are 5 factors, we can't have just 8 runs, so option D seems incorrect to me.
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Mee
10 months ago
I feel like option C might be tricky because it mentions confounding, and I remember that being a common issue in these designs.
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Flo
10 months ago
I think I saw a similar question where main effects were confounded with interactions, but I can't recall the specifics.
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Goldie
10 months ago
I remember studying fractional factorial designs, but I'm not entirely sure if 16 runs means it's half-fractional or not.
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Vernice
10 months ago
This seems straightforward enough. I'm pretty confident I can identify the incorrect statement based on my understanding of 2-level factorial designs.
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Dylan
10 months ago
I've got a good strategy for this. I'll start by identifying the key characteristics of the design, then use that to evaluate each of the statements and determine which one is incorrect.
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Delmy
11 months ago
I'm a bit confused by the wording of the question. Can someone help me understand the difference between "confounded" and "aliased" in the context of this problem?
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Reita
11 months ago
Okay, let's see. 5 factors, 2-level design, 16 runs... I think I know the answer, but I want to double-check my work before committing to an option.
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Jeanice
11 months ago
Hmm, this looks like a tricky one. I'll need to think through the details of the experimental design to figure out which statement is incorrect.
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Lura
11 months ago
I'm not sure, but I think the Experimental Design is half-fractional
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Leana
11 months ago
I disagree, I believe the correct statement is C)
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Hubert
11 months ago
Hmm, this question is giving me a headache. Maybe I should have skipped the caffeine today.
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Kati
8 months ago
I think D is the one that's incorrect.
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Audria
8 months ago
I feel you, it's confusing.
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Eun
9 months ago
This question is tricky!
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Thurman
9 months ago
Agreed, D doesn't seem right at all.
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Adolph
11 months ago
I think the correct statement is B)
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Yuette
1 year ago
B is wrong. The main effects are confounded with 4-way interactions, not just 4-way.
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Rebecka
11 months ago
A) The Experimental Design is half-fractional
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Zoila
1 year ago
I'm going with A. A half-fractional design with 5 factors and 16 runs is the way to go here.
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Toi
12 months ago
A) The Experimental Design is half-fractional
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Makeda
1 year ago
D is definitely incorrect. With 5 factors and a 2-level design, there should be 32 experimental runs, not 8.
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Tatum
1 year ago
I think C is the correct answer. The main effects are not confounded, but the 2-way interactions are confounded with the 3-way interactions.
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Moon
11 months ago
I think C is the correct answer.
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