Active recall is the way of life. It is the most effective method if you want to build a long term memory on something. The more you actively learn a topic, the more you tend to retain it and recall it during times of need. Recall and recognition are two very similar terms that are confused by students. When you recognize something, it doesn't necessarily mean that you can actively recall that information. There are a lot of evidences behind this.

Here is the link to the work that I referred to in the episode: https://drive.google.com/open?id=1Aeet9bUODFqp3zmsyV4Zdy8exgHiGPQ_

Happy studying and do refer to someone whom you think would be interested.