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iSQI CT-AI Exam - Topic 11 Question 2 Discussion

Posted by Monroe on Jun 24, 2024 at 12:26 AM

Which ONE of the following options describes a scenario of A/B testing the LEAST?

SELECT ONE OPTION

Suggested Answer: C

A/B testing, also known as split testing, is a method used to compare two versions of a product or system to determine which one performs better. It is widely used in web development, marketing, and machine learning to optimize user experiences and model performance. Here's why option C is the least descriptive of an A/B testing scenario:

Understanding A/B Testing:

In A/B testing, two versions (A and B) of a system or feature are tested against each other. The objective is to measure which version performs better based on predefined metrics such as user engagement, conversion rates, or other performance indicators.

Application in Machine Learning:

In ML systems, A/B testing might involve comparing two different models, algorithms, or system configurations on the same set of data to observe which yields better results.

Why Option C is the Least Descriptive:

Option C describes comparing the performance of an ML system on two different input datasets. This scenario focuses on the input data variation rather than the comparison of system versions or features, which is the essence of A/B testing. A/B testing typically involves a controlled experiment with two versions being tested under the same conditions, not different datasets.

Clarifying the Other Options:

A . A comparison of two different websites for the same company to observe from a user acceptance perspective: This is a classic example of A/B testing where two versions of a website are compared.

B . A comparison of two different offers in a recommendation system to decide on the more effective offer for the same users: This is another example of A/B testing in a recommendation system.

D . A comparison of the performance of two different ML implementations on the same input data: This fits the A/B testing model where two implementations are compared under the same conditions.


ISTQB CT-AI Syllabus, Section 9.4, A/B Testing, explains the methodology and application of A/B testing in various contexts.

'Understanding A/B Testing' (ISTQB CT-AI Syllabus).

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42 comments · newest first
SO
Sol 11 months ago
Yeah, C is more about dataset comparison, not user testing.
GO
Golda 11 months ago
I think D is more relevant than C, but C is still the least.
SV
Svetlana 11 months ago
Wait, are we sure about that? Seems a bit tricky!
ER
Erick 11 months ago
I agree, C doesn't fit the A/B testing definition.
AL
Alonzo 11 months ago
Option C is definitely the least about A/B testing.
LO
Lourdes 12 months ago
I’m leaning towards option C as the least A/B testing scenario, but I’m not entirely confident. It feels like it’s more about dataset comparison than user response.
KA
Kallie 12 months ago
I practiced a similar question where we had to identify A/B testing scenarios, and I feel like option D might be the least related since it’s about different implementations, not variations.
MA
Maryln 12 months ago
I think options A and B are definitely A/B testing scenarios, but I'm a bit confused about option C. It seems more like a performance evaluation than a true A/B test.
IR
Ira 1 year ago
I remember A/B testing is about comparing two variations to see which performs better, but I'm not sure if comparing ML systems fits that definition.
LA
Latricia 1 year ago
I'm confident I know the answer, but I'll double-check my reasoning just to be sure.
RA
Rashad 1 year ago
A/B testing is all about comparing two different versions, so I'm guessing the answer is the one that's not a direct comparison.
CL
Clorinda 1 year ago
Okay, let me break this down step-by-step. I need to identify the scenario that describes A/B testing the least.
SU
Susana 1 year ago
Hmm, I'm a bit unsure about the difference between A/B testing and other types of comparisons. I'll need to think this through carefully.
KA
Kattie 1 year ago
This question seems straightforward, I think I can handle it.
BE
Beckie 1 year ago
Hmm, I'm not totally sure about this. I know PEST has something to do with analyzing the external environment, but I can't remember the exact purpose. I'll have to think this through carefully.
RO
Rosalind 1 year ago
I think we practiced a similar question about compensations in services, and if I recall correctly, WS-BPEL was definitely mentioned as relevant.
CE
Ceola 1 year ago
If I recall, the individual valuation basis means we really have to pay attention to the costs of each material. Could the answer be $300F?
LY
Lynsey 2 years ago
I'm going with option D. Gotta love a good old-fashioned algorithm showdown!
TA
Tawna 2 years ago
↳ replying to Lynsey
I'm with the original user, option D seems the least like A/B testing to me.
ME
Melissa 2 years ago
↳ replying to Lynsey
I disagree, I believe option C is the least like A/B testing.
RO
Ronald 2 years ago
↳ replying to Lynsey
I think option A is the least like A/B testing.
OM
Omega 2 years ago
↳ replying to Lynsey
I'm going with option D. Can't wait to see which ML implementation comes out on top!
LE
Lemuel 2 years ago
↳ replying to Lynsey
I agree, it seems more like a user experience comparison than a testing of different implementations.
GI
Gianna 2 years ago
↳ replying to Lynsey
I think option A sounds like the least scenario for A/B testing.
BR
Breana 2 years ago
D all the way! Comparing different ML implementations is classic A/B testing. The others are just warm-ups.
LI
Lisha 2 years ago
↳ replying to Breana
Yeah, comparing different ML implementations is a clear case of A/B testing.
TR
Trinidad 2 years ago
↳ replying to Breana
I agree, D is the most classic example of A/B testing.
SH
Shaun 2 years ago
I agree with Alexis. D is the least likely scenario for A/B testing.
JO
Johnetta 2 years ago
C is a bit of a head-scratcher. How is that A/B testing? Comparing input datasets is more like A/A testing if you ask me.
TA
Tawna 2 years ago
↳ replying to Johnetta
That makes sense. A/B testing is usually about comparing different versions to see which performs better.
CH
Cherri 2 years ago
↳ replying to Johnetta
A) A comparison of two different websites for the same company to observe from a user acceptance perspective.
RO
Roselle 2 years ago
↳ replying to Johnetta
Yeah, I agree. It does seem more like A/A testing than A/B testing.
CA
Carmelina 2 years ago
↳ replying to Johnetta
C) A comparison of the performance of an ML system on two different input datasets.
AL
Alexis 2 years ago
Because A/B testing is about comparing different versions of the same thing, not different implementations.
TA
Taryn 2 years ago
I'm torn between B and D. Both sound like clear examples of A/B testing to me. Hmm, tough call.
SK
Skye 2 years ago
↳ replying to Taryn
I disagree, I believe option D is the least scenario of A/B testing.
LA
Lashaunda 2 years ago
↳ replying to Taryn
I think option B is the least scenario of A/B testing.
SU
Susy 2 years ago
Option A seems like a no-brainer - comparing websites for user acceptance is the essence of A/B testing!
EA
Earleen 2 years ago
↳ replying to Susy
B) A comparison of two different offers in a recommendation system to decide on the more effective offer for same users.
LI
Linsey 2 years ago
↳ replying to Susy
A) A comparison of two different websites for the same company to observe from a user acceptance perspective.
MA
Mari 2 years ago
Why do you think so, Alexis?
AL
Alexis 2 years ago
I think the answer is D.
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