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Sajjad1994
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CrackVerbalShree
Sajjad1994

This is quite an effort for sure!

However, my two cents - this is a very misleading post! The sample size here is literally 66 people! may be a few added if we remove the duplicates.

200000 people take GMAT every year :)

Regards,
Shree

Hello Shree

I partially agree with you, I haven't made any claim at a global level but rather the generalizability of this post is limited to the GMAT Club and its members. I have taken these debriefs posted by our members. There could be thousands of in-person courses of which we have no data.

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CrackVerbalShree
Sajjad1994

This is quite an effort for sure!

However, my two cents - this is a very misleading post! The sample size here is literally 66 people! may be a few added if we remove the duplicates.

200000 people take GMAT every year :)

Regards,
Shree


Thank you for the feedback. It would be helpful in what the misleading part is...

And A few clarifications:

1. The number of people taking the GMAT is probably around 100K/year or even fewer. The number of tests was 180K in 2020 https://www.gmac.com/-/media/files/gmac ... 6-2020.pdf and that does not account for retakes. There is a more recent data/file but I can't seem to locate it for the 2021.

2. You are correct in the sense that we do not have data for 100K or 200K people but we specifically are focusing on those who scored 750 or above. We do not want to know what someone they used if they scored 340... or maybe we do so we can recommend people not use it. :lol:

3. In any case, if we are focusing on the 1%, then it is only 1K people and while 66 is only 6.6% of the total, the result would provide a 90% confidence level with a 10% margin of error based on this calculator: https://www.qualtrics.com/blog/calculating-sample-size/
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bb
3. In any case, if we are focusing on the 1%, then it is only 1K people and while 66 is only 6.6% of the total, the result would provide a 90% confidence level with a 10% margin of error based on this calculator: https://www.qualtrics.com/blog/calculating-sample-size/
Just for accuracy's sake, it's 66 from three years, rather than 66 from one year. The information is still interesting though.
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It seems to me the point here is about helping test-takers to feel confident that their prep approach and combination of tools they're using is the best possible.

Statistics like these are one part of that decision making process.

The other part is recommendations from trustworthy sources like friends who have been through it before and experts like those here.

I think the only gap is understanding the incremental value (both in terms of reducing prep time and increasing score potential) of more premium help like expert performance coaches and group classes.
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