Tag Archives: class

Brief Daily Tests Might Be a Godsend for Low-Income College Students

Mother Jones

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Via Joanne Jacobs, here’s an interesting research tidbit—highly preliminary and tentative, but still interesting. A couple of psychology professors at the University of Texas started giving students in their intro lecture course a brief online quiz in every single class session. They found that average grades went up modestly, both in their class and in other classes, though this was tricky to assess since previous classes had used different grading curves. However, the daily quizzes did unquestionably improve the relative performance of students from low-income homes:

There’s really not enough data from this one study to figure out why the delta between high and low-SES groups compressed with daily testing, but the researchers’ best guess is that the low-SES students benefited more from the daily, immediate feedback:

In our view, the patterns of improved performance across three outcomes (in Introductory Psychology, in other Fall classes, and in subsequent Spring classes) most plausibly reflect changes in students’ self-regulated learning — their ability to study and learn more effectively….In particular, students had to adopt reading, note-taking, and study habits that allowed them to keep up with the material. In talking with students, many noted how they had learned to set aside specific times to prepare for each class–something that they did not initially feel they needed to do for other classes. The repeated testing also broke the material into segments that required students to focus their attention on the relevant content and the immediate feedback after each quiz provided students with a constant and objective means with which to engage in productive self-evaluation. The daily quizzes also encouraged students to attend classes at higher rates.

In other words, the high-SES students had better average study habits to begin with, so the daily testing affected them only modestly. The low-SES students had poor study habits, and the daily testing made them face up to this early in their college careers and do something about it before it spiraled out of control. This affected not just their performance in the psychology class itself, but in the rest of their classes as well.

There are obviously a ton of confounding factors that could be at play here, but it’s an interesting result, well worth following up on.

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Brief Daily Tests Might Be a Godsend for Low-Income College Students

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We’re Still at War: Photo of the Day for November 13, 2013

Mother Jones

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Sergeant First Class Adam Silvis, a medical platoon sergeant with the 1st Armored Brigade Combat Team, 4th Infantry Division, moves under fire during Expert Field Medical Badge testing on Camp Buehring, Kuwait, Oct. 13, 2013. This is the first time in 14 years that EFMB testing has been conducted in Kuwait. Photo by Sgt. Adam C. Keith, U.S. Army Central.

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We’re Still at War: Photo of the Day for November 13, 2013

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Crowdsourcing Military Power

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A new project allows individuals to participate in the financing of a big renewable energy project on a U.S. defense installation

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Crowdsourcing Military Power

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Crowdsourcing Military Power

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Harry Tells Green Energy Boss That Wind Turbines Are An Eyesore

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Harry, like his father and grandfather, has expressed concerns over the unsightly turbines used to create wind energy

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Harry Tells Green Energy Boss That Wind Turbines Are An Eyesore

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Harry Tells Green Energy Boss That Wind Turbines Are An Eyesore

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Something smells bad in New Orleans (more than usual)

Something smells bad in New Orleans (more than usual)

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What the hell is that smell?

That’s the question that residents of coastal southeastern Louisiana have been asking since about 1 a.m. Wednesday.

New Orleans and surrounding cities sit at ground zero for a growing hive of Gulf of Mexico oil and gas drilling and processing facilities. Since early Wednesday, residents report being overwhelmed by yet another mysterious and powerful chemical odor (this one smells either like burning tires or a gas station, depending on who you talk to).

Nobody seems to know where the acrid smell is coming from. But given that it smells like toxic petrochemicals, it’s a pretty safe bet that the toxic petrochemicals industry has something to do with it. On Thursday, the Coast Guard said it was investigating whether the odor was coming from a wastewater spill at an ExxonMobil refinery.

From The Times Picayune:

“We have received calls from the public regarding the odors, and we’re currently investigating these issues and working to pinpoint the source,” said [Louisiana Department of Environmental Quality] spokesman Tim Beckstrom.

“Personnel from Coast Guard Sector New Orleans are working with the Louisiana Department of Environmental Quality to investigate the source of a report of a gas smell near Terrytown,” said Coast Guard Petty Officer Second Class Bil Colclough.

Residents in Chalmette, Algiers and New Orleans began reporting odors to the Louisiana Bucket Brigade soon after 1 a.m. Wednesday, said Anna Hyrbyk, program manager for the environmental group.

“We anticipate more reports coming in because we’re getting calls from a lot of locations,” Hyrbyk said. “The wind direction is moving from the east to the west and in the last hour, we received reports from Harahan to Metairie about a burnt tire smell.”

Complaints about pollution are nothing new for the region, where oil spills, fires, and other industry accidents occur at a rate greater than one per day. And the acrid scent there is a recurring problem. From a May 2010 story in the New York Times, a month after oil beginning spilling into the Gulf following the Deepwater Horizon blowout:

Could New Orleans possibly be smelling that [Deepwater Horizon oil spill], from more than 100 miles away? Many say yes. But the mystery odor, which is stronger on some days and in some areas than others, is hard for residents to describe.

“It’s chemical, and I’m trying not to think about it,” said Raymond Dillon, a karate teacher.

Diana Mecera, a restaurant worker who lives in the French Quarter, said, “It’s a kind of a sewage smell.”

Her co-worker, Lauren Graham, a waitress, put it this way: “It’s more like being at a gas station.”

But the heavy funk in the air since Wednesday is something special. Check out the bucket brigade’s iWitness pollution map, which reveals longrunning pollution problems in Louisiana but also shows a sudden spike in complaints about air quality recently around New Orleans.

Hold your breath and don’t create any sparks, New Orleans.

John Upton is a science aficionado and green news junkie who

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Something smells bad in New Orleans (more than usual)

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