Targeted solutions help students complete online courses

Thursday, 18 June, 2020

Targeted solutions help students complete online courses

A recent study has shown that behavioural interventions are not successful at helping all students in completing massive open online courses (MOOCs).

In one of the largest educational field experiments ever conducted, a team co-led by a Cornell researcher found that promising interventions designed to help students complete online courses were not effective on a massive scale — suggesting that targeted solutions are needed to help students in different circumstances or locations.

The researchers tracked 250,000 students from nearly every country in 250 MOOCs. 'Scaling Up Behavioral Science Interventions in Online Education', was published in Proceedings of the National Academy of Sciences.

"Behavioural interventions are not a silver bullet," said Rene Kizilcec, assistant professor of information science and co-lead author.

"Earlier studies showed that short, light-touch interventions at the beginning of a few select courses can increase persistence and completion rates," he said.

"But when scaled up to over 250 different courses and a quarter of a million students, the intervention effects were an order of magnitude smaller."

The study was co-led by Justin Reich of the Massachusetts Institute of Technology and Michael Yeomans of Imperial College London. The research was conducted on the edX and Open edX platforms, and edX has engaged in work to make the data available to institutional researchers to advance educational science at scale.

The 250 courses the researchers studied came from Harvard University, MIT and Stanford University.

Failure to complete online courses is a well-known and long-standing obstacle to virtual learning, particularly among disadvantaged communities and in developing nations — where online education can be a key path to social advancement. The findings have added relevance with so much education around the world taking place online during the COVID-19 pandemic.

"My advice to instructors is to understand and address the specific challenges in their learning environment," Kizilcec said.

"If students have issues with their internet connection, you can't help them overcome them with a self-regulation intervention. But if students need to go to bed on time in order to be awake for a morning lecture, or they need to plan ahead for when to start working on homework in order to have it ready to hand in, then a brief self-regulation intervention can in fact help students overcome these obstacles."

Previous, smaller-scale research, performed by Kizilcec and his co-authors as well as other scholars, found that goal-setting interventions such as writing out a list of intentions at the start of the class improved students' course completion rates.

In this study, the researchers explored the effects of four interventions:

  • Plan-making, where students are prompted to develop detailed plans for when, where and how they complete coursework.
  • A related activity in which students reflect on the benefits and barriers of achieving their goal, and plan ahead about how to respond to challenges.
  • Social accountability, where they pick someone to hold them accountable for their progress in the course, and plan when and what to tell them.
  • Value-relevance, where they write about how completing the course reflects and reinforces their most important values.

For the first three interventions, involving planning ahead, the researchers found that the approach was effective in boosting engagement for the first few weeks of the course, but the impact dwindled as the course progressed. The value-relevance intervention was effective in developing countries where student outcomes were significantly worse than others, but only in courses with a global achievement gap; in other courses, it actually had a negative impact in developing countries.

The researchers tested whether they could predict in which courses an achievement gap would occur, in order to decide where the intervention should be added, but found it extremely difficult to predict.

"Not knowing if it will help or hurt students in a given course is a big issue," Kizilcec said.

The researchers attempted to use machine learning to predict which interventions might help which students, but found the algorithm was no better than assigning the same intervention to all students.

"It calls into question the potential of AI to provide personalised interventions to struggling students," Kizilcec said.

"Approaches that focus on understanding what works best in individual environments and then tailoring interventions to those environments might be more effective."

The researchers said their findings suggest that future studies should be designed to consider and reveal the differences among students, in addition to studies assessing overall effects.

Image credit: ©

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