Installing air filters in classrooms has surprisingly large educational benefits (2020)

Critical thinking and skepticism are good, but much of what happens on HN is not that.

Thinking critically includes, most of all, finding value - you need to think critically (and skeptically) to avoid assigning value to things that don't have it, but you must find value. The goal is to build knowledge - just like the study author needs to find knowledge among flawed data, you must find knowledge among flawed studies - and they are all flawed, of course.

Focusing on the flaws and trying to shoot down everything is just craven recreation.

> Focusing on the flaws and trying to shoot down everything is just craven recreation.

No, its a valuable job to find flaws because its much easier to fix and work on known flaws than to stumble in the dark.

Removing flaws and problems is one of the easiest ways to add value.

Focusing on the flaws is vital context for helping ordinary people understand the world. Any given study with a surprising result is likely wrong. Yeah, some of them are going to be right, but you're going to get many false positives and only a handful of studies that replicate to a convincing degree.

I've made this mistake time and time again, most recently with vitamin D association studies, and I'm grateful to all the people who urged everyone else to take a wait-and-see approach.

> you need to think critically (and skeptically) to avoid assigning value to things that don't have it, but you must find value.

This isn’t critical thinking.

This is toxic positivity.

It’s okay to admit that some studies don’t have value to add. If you don’t accept this, you’re going to be tricked by a lot of people trying to get your attention with bad data.

Being able (and willing!) to filter out bad sources, even when they say something you want to hear, is a critically important skill. If you force yourself and others to find something positive about everything then you’re a dream come true to purveyors of low quality or even deliberate misinfo.

lol

> some studies

It's almost every study on HN, not some studies, which you'd understand if you read my comment.

It's not valuable. People who do this at work are people who have no value to offer so they try to sound smart (and valuable) by finding flaws in someone else's work. All work is limited and flawed - it's easy to find them. Add the common hyperbolic statements on HN dismissing the entire study or whole fields of research, and it's misinformation.

The real significance is that things like sample size, to pick a common example here, is easy to understand in a theoretical way and so people apply it to the actual (not theoretical) practice of real research, which they don't understand the practicalities of, and also they overemphasize it because that's pretty much all they understand.

The first thing they look at in a paper is sample size - and hey, now sometimes they have something to 'contribute'! It's just reinforcing the same misunderstandings in others.

It sucks, a little, to have nothing to contribute, but it's a great opportunity to learn from people who do know.

Yes because most studies that end on up HN are there because they were reported on somewhere as news.

This usually happens in usually these cases:

1. when a paper is extremely good and it's results are groundbreaking, or

2. when a study itself claims it has groundbreaking results, or

3. when it's a regular study that's gotten some great marketing/promotion e.g. by their university.

The case of 1. is extremely rare, and even when everyone believed the results and they were peer reviewed by a reputable paper like Science, some of them turned out to be academic fraud that was later retracted.

Most studies that pop up on HN are of types 2. and 3. That's just because otherwise they would not get news attention.

But most studies in general are in category 4: the ones an academic or professional would read going about their daily business / research. These range from terrible, to OK, to really great, but 99% never make the news.

As a (former) academic, I've read lots of papers and like in real life it's usually the people (papers) that get attention who scream the loudest. There are some gems too of course, and it's right to not ignore anything.

But in my personal experience and over time, I've been very right to be very sceptical once a result turns up in the news because of the 3 ways it can get there.

This is amplified even more so with papers that base their results / outcome purely on statistics, such as most experimental studies done. These derive their results from the statistics (sample size, experiment design, etc) so their power and the probability of their result being correct (what the authors say) it directly coupled.

Science is a long game, it's not about sales where you need to sell right now. Extreme results will be attempted to be replicated, which in turn costs a lot of funding. That is money and time, sometimes a whole persons career.

This money and time is taken directly away from funding other, potentially more worthy or more likely to be correct studies.

There is no point of looking at every (flawed) study in the most positive way, unless you have unlimited time and money to pursue every avenue of research.

Often (not always), the studies that are most heavily promoted among the news and in business or politics are really not the best research and other, less visible but more solid research gets ignored in favor of whats popular or what has had good marketing.

This is very frustrating for people doing solid good research, because every so often someone else will come along with wild, exaggerated claims and very little data to back it up, and then gets funding for it.

It takes literal years away from good science just because someone markets and speaks well.

Which is fine in business, but in science this is not something "the market" can or will correct for well, simply because the timespans are so long.

> There is no point of looking at every (flawed) study in the most positive way

This line epitomizes the nonsense in the discussion. I didn't say every study, you can't know it's flawed without seriously examining it, and I didn't say in the most positive way at all.

By using these exaggerations, you damage any serious discussion - you give people nothing to respond to except your emotional state.

What I said was, the point is to build knowledge, and so the way to examine research is to find the valuable knowledge - which includes evaluating the accuracy, etc. of that knowledge. There's no other point to it - we're not awarding tenure here, so there's point in keeping some overall score. We just want to learn what we can.

I did not say this study is flawed or that every study is flawed. And I have made no exaggerations or said that you personally look at it the most positive way.

Reading comprehension is important, and especially important in a discussion like this.

I do however really mean that some studies are not worth looking at all in more detail: if the methodology is flawed, the results are meaningless. At most the premise of such a hypothetical (not saying this one necessarily!) study could be used as an idea for further research, but not to build knowledge on or derive knowledge from the results.

Are there some examples of "non flawed" research that is getting ignored? Because (as a non-academic) I feel like I'm seeing the same HN attitude that OP describes. No study is good enough for HN. There are always nit pickers that come out of the woodwork. For every science article about some study or finding, the top comment is always a variation on: "This study is flawed because..." Almost without exception. Also, the standard is so high: A single flaw found is grounds for dismissing the whole study as flawed.

My guess is if you raise examples of "good science" the HN peanut gallery will jump in to point out the flaws in that science, too.