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alexzhang1020454
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PrepTests ·
PT121.S4.Q19
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alexzhang1020454
Tuesday, Jun 27 2023

I chose D but I was very hesitant because don't we have to assume that the institute is a new sleeping environment? The 50 participants could've been living in the institute for years because idk, it's hard to come by reliable insomniacs?

PrepTests ·
PT119.S3.Q17
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alexzhang1020454
Friday, Jun 23 2023

I eliminated B under the "wrong" conclusion (that it was about needing accurate assessments). "It's not necessary that students can wisely and insightfully assess a professor's performance before the end of the semester because what if, magically, the students all assess the performance at the end of the semester anyway?" Would this be a correct elimination under the "imagined" conclusion? #help (Added by admin)

PrepTests ·
PT140.S3.Q13
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alexzhang1020454
Saturday, Jul 15 2023

How do we know the song was useful or helpful at all? All we know is that the children were taught a song with their phone numbers and at the end of the day they could remember it. Like J.Y said, maybe they completely forgot it after a few minutes and then the teacher taught them another method of remembering their phone numbers (like beating it into them) #help

PrepTests ·
PT151.S3.Q19
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alexzhang1020454
Saturday, Aug 12 2023

Isn't the conclusion that the incentive was removed? I thought that was the trick and the correct answer would talk about causation

#help (Added by Admin)

PrepTests ·
PT151.S3.Q16
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alexzhang1020454
Saturday, Aug 12 2023

I understand that this is a MSS question and answers to MSS questions have leeway and can be weaker. But I understood E and still eliminated because there are many ways for there to be less not preserved wood vehicles.... like maybe the archaeologists just couldn't find them. Maybe they just didn't make a lot.

PrepTests ·
PT153.S3.Q22
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alexzhang1020454
Friday, Aug 11 2023

I would like to point out that Avengers only beat out Avatar in the domestic box office

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Thursday, Aug 10 2023

alexzhang1020454

What does "unrepresentative sample" mean

I came across this issue when I was doing June 2020 Section 2 Question 25. I thought unrepresentative sample applied because the sample was on [test subjects before experiments] and the conclusion was on [test subjects after experiments]. But a few people have told me that the "unrepresentative sample" answer choice is only for statistically unrepresentative things, like only interviewing 10 people when the population is 100,000.

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