I just checked out this post on yhathq.com. about conducting interpreting linear regression in R. I thought it was okay, if a little expertnoobish (i.e., the author seems to want to explain what regression is at the same time as explaining how to do it in R… probably not useful for true beginners). AND THEN [...]
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At this point I do (I admit) get a bit of smug satisfaction every time Blackboard Learn fails me, but the disappointment in the failure is still much stronger. Today’s episode: “random” assignment of number sets in calculated formula questions. In Blackboard Learn (BbL) you can use variables in questions (“calculated formula” questions) and set [...] So I wanted to have BbL give a calculated formula question about confidence intervals, generating random values for each student. Confidence intervals are two numbers, not one. Shockingly, it’s a math problem whose answer is more than one value </snark>. No, BbL can’t do that in any way I can find. Sigh. I like Amazon’s MP3 downloads. They’re cheaper than iTunes, they’re often on super-sale, and they’re DRM-free. However, there are two costs they carry that are a worth noting: 1. Non-obvious DRM-like restrictions: When you buy albums, you don’t (as you might naively suppose) get to just download them. Oh, no. They are added to your [...] I can’t say anything about the details of our candidates (of course), but I do want to say that hiring–for all its stresses–is a really fun process. Our candidates this year are top-notch. Listening to their research presentations and meeting them is a nice, bright window into other career and educational worlds, and a reminder [...] In PSY 2401 (basic statistics for psychology), I’ve been offering the students surveys to let me (and each other) know how they perceived the homework assignments. So far, I only have one dataset–homework #1. I have learned a few things, the first of which is that Blackboard is not a user-friendly (or terribly useful) way [...] Today’s first I-Hate-Blackboard experience: Availability Follies I have a merged course in BbL. Although about 65 students are enrolled, I have 105 in Blackboard, and they (plus more) will all be there for the rest of the semester, because apparently it’s very difficult to remove them or something. So my gradebook has a pretty poor [...] I am so fed up with BbL it’s kind of pathetic. My most recent gripe: BbL seems to be unable to do basic math… in test items designed to create math questions. I created a “calculated formula” question as part of a self-test of my undergraduate statistics students’ math preparedness. The question asks the students [...] I spent most of today stuck in tech hell trying to launch myself into the LaTeX world while using Windows 7 64-bit (instead of Linux). I couldn’t get TeXnicCenter to compile/build PDFs (or was it Sumatra, the PDF application?). I got the dreaded “cannot execute command” error from… somewhere. I tried a LOT of stuff. [...] I’ve been trying to get some graphs prepared from the Knowledge & Attitudes data from Fall 2012 (K&A 2012). One of our chunks of data was a series of questions given to survey respondents about their views of the immorality and probable harm caused by various sexual situations (I call these the scenarios): each scenario [...] |
 Me looking pensive |
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