This question is incomplete. Here's the complete question.
Read the article "Students 'cannot text and learn" by Sean Coughlan
what does research show about the effect of phone usage on student learning outcomes?
Answer:
The researchers of the study 'Mobile Phones in the Classroom: Examining the Effects of Texting, Twitter, and Message Content on Student Learning' found that phone usage while studying was detrimental for the learning process.
Step-by-step explanation:
While the students sending and getting phone messages when they were studying got lower test results and showed less effectiveness on note-taking, those who didn´t use their phones got better results and were abler to recall information.