Shared posts

14 May 16:31

Today in Non-Phallic Historical Advertising Campaigns

by Erik Loomis

Nothing to see here.

From 1951.

14 May 12:26

“I’m a Suffer Yet”

by Erik Loomis
14 May 00:06

Birds and Dinosaurs

Sure, T. rex is closer in height to Stegosaurus than a sparrow. But that doesn't tell you much; 'Dinosaur Comics' author Ryan North is closer in height to certain dinosaurs than to the average human.
23 Apr 01:26

Rhee Con

by Scott Lemieux
Robert.mccowen

Follow the first link, if you haven't been following this story. It's fairly well understood in the ed assessment community that cheating happens, and while the tools for detecting it--at least on the gross scale of "statistically likely"--aren't simple, they are fairly straightforward. This is a situation where everyone knew what was going on, and no one wanted to talk about it because hey, it's getting results, right?

Much more on Rhee’s tenure in DC and the cheating scandal she knew about and buried from John Merrow. Rhee was completely unqualified to run a school system but certainly accomplished in getting people to lavish her with praise (up to and including the current occupant of the White House), and the consequences were pretty much inevitable:

It’s easy to see how not trying to find out who had done the erasing–burying the problem–was better for Michelle Rhee personally, at least in the short term. She had just handed out over $1.5 million in bonuses in a well-publicized celebration of the test increases. She had been praised by presidential candidates Obama and McCain in their October debate, and she must have known that she was soon to be on the cover of Time Magazine. The public spectacle of an investigation of nearly half of her schools would have tarnished her glowing reputation, especially if the investigators proved that adults cheated–which seems likely given that their jobs depended on raising test scores.

Moreover, a cheating scandal might well have implicated her own “Produce or Else” approach to reform. Early in her first year she met one-on-one with each principal and demanded a written, signed guarantee of precisely how many points their DC-CAS scores would increase.

Relying on the DC-CAS was not smart policy because it was designed to assess students’ strengths and weaknesses. It did not determine whether students passed or were promoted to the next grade, which meant that many students blew it off.

Putting all her eggs in the DC-CAS basket was a mistake that basic social science warns against. “The more any quantitative social indicator is used for social decision-making, the more subject it will be to corruption pressures and the more apt it will be to distort and corrupt the social processes it is intended to monitor.” That’s Campbell’s Law, formulated in 1976 by esteemed social scientist Donald Campbell (1916-1976) .

Applied to education, it might go this way: “If you base nearly everything–including their jobs–on one test, expect people to cheat.”

And the novice Chancellor was basing nearly everything on the DC-CAS.

Read the whole thing — I can assure you that it’s a better time investment than Won’t Back Down.

19 Apr 03:50

Authorization

Before you say anything, no, I know not to leave my computer sitting out logged in to all my accounts. I have it set up so after a few minutes of inactivity it automatically switches to my brother's.
15 Apr 12:43

I just had the best idea ever!

by SEK
Robert.mccowen

Long, but interesting. To me, anyway.

And now I know exactly what mistakes not to make when I pull it off!

(In all seriousness, that’s probably the most engagingly written and outright entertaining article about scholarly fraud I’ve read in recent memory.)