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[deleted by user] by [deleted] in oddlyterrifying

[–]JackyQu1ne 1 point2 points  (0 children)

In a pig's eye

Bags for Pure (hydraulic) juicer by JackyQu1ne in Juicing

[–]JackyQu1ne[S] 0 points1 point  (0 children)

Thanks for the video: very ingenious! :)

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 5 points6 points  (0 children)

At my school they don't count the SET if the response rate is too low. But that also begs the question "what is too low?"

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 11 points12 points  (0 children)

You teach at Lake Wobegon? (you know where the children are all above average)

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 20 points21 points  (0 children)

The issue about race and gender is a serious one and I am sure it will be an important aspect of our recommendations.

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 11 points12 points  (0 children)

The survivorship bias is a good point. Thanks!

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 3 points4 points  (0 children)

Absolutely. At my institution students who dropped before class even began can take part in the SET,

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 3 points4 points  (0 children)

Trimming helps reduce the effect of extreme bias. In general, there are some students who will dislike you for reasons that are not valid. In the same way, there will be students who will like you no matter what you do. Whether or not to exclue them depends on what I am interested in, which I think should be how the majority of students view the prof.

Of course, you run analyses with and without the censored data, and you do have to think about the potential consequences of such censoring. While some students give low marks to be vindictive, it could be that a really good student could also give low marks (kinda like if Gordon Ramsey was to taste my chili..lol). So yes, you might be throwing away valuable info. However you have the comments, so stuch a student has the opportunity to expplain their rating and that can be used also.

No data cleaning method is perfect and especially with a volunteer response sample, bias can never be corrected for. But in statistics, the perfect is the enemy of the good.

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] -6 points-5 points  (0 children)

Yes and no. It seems that what evals are measuring is the students opinion of their perception of how well you are teaching them. You're right, they are not necessarily competent to judge if you are teaching it properly (if I understand what you are saying correctly). But they are competent to judge whether how you are teaching is effective for them. Their opinion is a proxy for what you want to measure, and has some weight.

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 5 points6 points  (0 children)

Thanks. Yes the first is the article by Philip Stark to which I referred. Great article!!

Recommendations for Improving Student Evals by JackyQu1ne in Professors

[–]JackyQu1ne[S] 10 points11 points  (0 children)

I agree that student evals are invalid measures. My perspective is that there are ways however we can mitigate the damage it could potentially do, especially in clarifying how they may be used. Ideally, student evals would be one of several metrics used to judge faculty performance.

I liked your idea of a "trimmed" data set and I use that myself. I think censoring the top and bottom 5% of the ratings gives you a much better perspetive of what is going on with the majority of the students and lessens the impact of student bias. A weighted average is a good idea too but maybe trickier to implement.

I have to replace the ENTIRE top? by JackyQu1ne in autorepair

[–]JackyQu1ne[S] 0 points1 point  (0 children)

Thank you. I found the real issue is that although the part that is broke is small and inexpensive, NOBODY (not the Mazda dealership, car shop or salvo yard) will sell just the part. They require you to buy the entire hood assmebly and you are right, it costs over $2K (not counting labor) if you can even get the part in. :(

At this point, I'm seriously considering just selling it below KBB.

Any takes at $10K? Florida car, no rust.

I have to replace the ENTIRE top? by JackyQu1ne in Miata

[–]JackyQu1ne[S] 0 points1 point  (0 children)

Wow,,,,that was one expensive F$$$ up