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Practice. Practice. Practice. Make it an important part of your daily schedule. Do not cram in one sitting. Track your strengths and weaknesses in the proficiency dasboards. For more tips, please visit our detailed article on tips to study machine learning effectively
You will not learn efficiently if we did that. We only tell you whether you are right or wrong, but never explain the decision. By seeking out the correct answer, either from appropriate references or deep thought, you will remember the material better and also reinforce related concepts.
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The proficiency score is our proprietary metric to evaluate your expertise. A higher score is better. It is a holistic score that is a function of the number of questions, the number of attempts, accuracy, question difficulty, time intervals between attempts over the same concept to test retention, among other things.
Proficiency is not monotonically increasing. If you do not practice a concept for a long time, you start getting rusty on those ideas. Practicing frequently and regularly will ensure that your proficiency score keeps rising and sustains at higher levels.