Study: Allowing smartphones in class lowers grades–even for students who don’t use them
The study also showed that students who didn’t use electronic devices but attended lectures where their use was allowed also performed worse on tests.
Students who use smartphones during lectures are less able to retain course material over the long term, new research suggests.
The study, published in the journal Educational Psychology, also showed that students performed worse on exams even when they didn’t use smartphones or laptops during class but attended lectures in which they were allowed.
“Many dedicated students think they can divide their attention in the classroom without harming their academic success – but we found an insidious effect on exam performance and final grades,” lead researcher Arnold Glass, a professor of psychology at Rutgers–New Brunswick’s School of Arts and Sciences, told Rutgers Today.
For the study, researchers tracked the performance of two groups of Rutgers–New Brunswick cognitive psychology students, 118 in total, as they took the same course over one term. The course was identical for both groups of students, but only one group was allowed to use electronic devices during the lectures; the other wasn’t.
The majority of students used electronic devices when allowed, while only six students never used them at all. It seemed to make a crucial difference on final grades.
Interestingly, the results showed that using electronic devices had no effect on students’ ability to answer questions about course material taught that same day. However, it did seem to make students perform worse–by about 5 percent–on unit and final exams, suggesting that students’ ability to retain information over the long term suffers if they divide their attention when material is being taught.
The researchers wrote that dividing your attention can hurt your long-term retention abilities because you ultimately spend less mental resources on mnemonic activities, such as answering quiz questions in class that will later show up on a final exam.
“This finding demonstrates for the first time that the main effect of divided attention in the classroom is not an immediate effect of selection or switching on comprehension but a long-term effect of divided attention on retention,” the researchers wrote.
Glass suggested that teachers warn students of the counterproductive effects electronics can bring to the classroom.
“To help manage the use of devices in the classroom, teachers should explain to students the damaging effect of distractions on retention – not only on themselves, but for the whole class,” he said.
The new version's battery has a shorter range and a price $4,000 lower than the previous starting price.
- Tesla's new version of the Model 3 costs $45,000 and can travel 260 miles on one charge.
- The Model 3 is the best-selling luxury car in the U.S.
- Tesla still has yet to introduce a fully self-driving car, even though it once offered the capability as an option to be installed at a future date.
What makes an excellent educator?
- When it comes to educating, says Dr. Elizabeth Alexander, a brave failure is preferable to timid success.
- Fostering an environment where one isn't afraid to fail is tantamount to learning.
- Human beings are complicated and flawed. Working with those complications and flaws leads to true knowledge.
"It's about having employees that are empowered."
Denmark may be the birthplace of the Lego tower, but its workplace hierarchy is the flattest in the world.
According to the World Economic Forum's Global Competitiveness Report 2018, the nation tops an index measuring "willingness to delegate authority" at work, beating 139 other countries.
We all know sleeping with your ex is a bad idea, or is it?
- In the first study of its kind, researchers have found sex with an ex didn't prevent people from getting over their relationship.
- Instead of feeling worse about their breakup after a hookup, the new singles who attempted sexual contact with their ex reported feeling better afterwards.
- The findings suggest that not every piece of relationship advice is to be taken at face value.
It's hard to imagine such a number. But these images will help you try.
The Mega Millions lottery just passed $1 billion for tonight's drawing.
What does that even look like, when represented by various currencies?
It takes just 6 numbers to win. You can only, however, purchase tickets up until 10:45 ET tonight.
Want a happy, satisfying relationship? Psychologists say the best way is to learn to take a joke.
- New research looks at how partners' attitudes toward humor affects the overall quality of a relationship.
- Out of the three basic types of people, people who love to be laughed at made for better partners.
- Fine-tuning your sense of humor might be the secret to a healthy, happy, and committed relationship.
Tiny and efficient, these biodegradable single cells show promise as a way to target hard-to-reach cancers.
- Scientists in Germany have found a potential improvement on the idea of bacteria delivering medicine.
- This kind of microtargeting could be useful in cancer treatments.
- The microswimmers are biodegradable and easy to produce.
Metin Sitti and colleagues at the Max Planck Institute in Germany recently demonstrated that tiny drugs could be attached to individual algae cells and that those algae cells could then be directed through body-like fluid by a magnetic field.
The results were recently published in Advanced Materials, and the paper as a whole offers up a striking portrait of precision and usefulness, perhaps loosely comparable in overall quality to recent work done by The Yale Quantum Institute. It begins by noting that medicine has been attached to bacteria cells before, but bacteria can multiply and end up causing more harm than good.
A potential solution to the problem seems to have been found in an algal cell: the intended object of delivery is given a different electrical charge than the algal cell, which helps attach the object to the cell. The movement of the algae was then tested in 2D and 3D. (The study calls this cell a 'microswimmer.') It would later be found that "3D mean swimming speed of the algal microswimmers increased more than twofold compared to their 2D mean swimming speed." The study continues —
More interestingly, 3D mean swimming speed of the algal microswimmers in the presence of a uniform magnetic field in the x-direction was approximately threefolds higher than their 2D mean swimming speed.
After the 2D and 3D speed of the algal was examined, it was then tested in something made to approximate human fluid, including what they call 'human tubal fluid' (think of the fallopian tubes), plasma, and blood. They then moved to test the compatibility of the microswimmer with cervical cancer cells, ovarian cancer cells, and healthy cells. They found that the microswimmer didn't follow the path of bacteria cells and create something toxic.
The next logical steps from the study include testing this inside a living organism in order to assess the safety of the procedure. Potential future research could include examining how effective this method of drug delivery could be in targeting "diseases in deep body locations," as in, the reproductive and gastrointestinal tracts.
Our modern-day Kafka on his new novel Lake Success and the dark comedy that in 2018 pretty much writes itself
- riding the Greyhounds of hell, from New York to El Paso
- the alternate reality of hedge fund traders
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