MDCAT practice MCQs by chapter: a weekly drilling method

Practise one chapter at a time in sets of 20 to 30 questions, then review every wrong answer before you start the next set. Chapter drills build recall; mixed sets build selection. Do both in the same week, not in the same session. The aim is fewer repeats of the same mistake, not a higher question count.

A chapter drill has one variable: the chapter. The wording and difficulty still vary, but the content is bounded. That makes it easier to see whether a wrong answer came from a missing fact or from a misread stem. A mixed set has too many variables for a repair session.

Why chapter drills come first

The MDCAT mixes five subjects in one paper. You cannot repair a weak chapter inside that mix, because the next question may come from a different subject. A chapter drill keeps the context still while you work on the gap.

A mixed set still matters. The paper does not tell you which chapter a question comes from, and it does not group questions by topic. Use chapter drills to repair and mixed sets to test whether the repair survives a change of context.

The order is simple. Drill the chapter, review the errors, reattempt after two days, then place the chapter in a mixed set. If it survives the mixed set, it is ready for maintenance. If it does not, the chapter goes back into the next week.

How many questions per chapter each week

The counts below are a planning guide. They assume one-minute questions and a review that is at least as long as the set.

A normal week is about 90 chapter questions plus one mixed set of 30. That is two hours of answering and about two hours of review. If you have less time, cut the number of chapters, not the review. A chapter you answer and never review is a chapter you will meet again.

The first pass is for coverage. The repair stage is for the chapters that produced errors. The maintenance stage keeps an old chapter alive while you work on a new one. Do not run all three stages on every chapter in the same week.

If you are using the free tier, the 500 practice attempts are a lifetime total, not a weekly quota. Spend them on reviewed sets, not on clicking through questions. Every attempt includes a worked explanation. The practice page lets you filter by subject and chapter.

A 45-minute chapter drill

Use the same shape for every chapter. The timer is part of the drill, because the exam has one.

1. Five minutes: read the chapter map. Read the headings and the formulas, not the whole note. You are loading the structure, not learning the chapter from scratch.
2. Five minutes: write five recall questions. Cover the note and write five questions you should be able to answer. This tells you what the chapter is for.
3. Twenty-five minutes: answer 25 questions. Aim for one minute each. Mark any question you guess, even if the guess is right.
4. Ten minutes: mark and classify. Sort the errors into knowledge, reading, calculation and guess. Do not read the explanations yet.

The second session comes 48 hours later. Reattempt the wrong questions with the answer hidden, then answer ten new questions from the same chapter. If the rule holds, move the chapter to maintenance. If it fails, rewrite the rule and keep the chapter for another week.

Twenty-five questions is a guide, not a rule. What matters is that the set is long enough to show a pattern and short enough to review properly. A set of ten is a quiz. A set of sixty is a paper without the mix.

Recognition is not recall

Recognition means the option list does the work. You see the answer and it feels familiar. Recall means you produce the answer before the options appear. The two skills are related, but they are not the same.

Here is the test. Cover the options, read the stem and say the answer aloud. Then uncover the options and check. If you could not answer without the list, mark the row as a recall gap even when you choose the right option.

Three examples make the difference concrete. In Biology, "Where does the Calvin cycle take place?" If you need "stroma" in the list, you recognised the word. In Chemistry, "What is the shape of a methane molecule?" If you need "tetrahedral", the same thing happened. In Physics, "What is the unit of electric charge?" If you need "coulomb", you recognised it.

The exam still rewards recognition, because the options are in front of you and elimination is a real skill. But a practice score built only on recognition is higher than the score you will get when the wording is unfamiliar. Test recall first, then practise recognition under a clock.

How to use a wrong answer without rereading the chapter

A wrong answer has four useful parts: the cause, the rule, the reattempt and the next set. Rereading the chapter is not on that list, at least not at first.

1. Classify the cause. Knowledge, reading, calculation or guess. Write one word.
2. Write the rule in one line. Name the condition and the action. "When a circuit has internal resistance, use E = I(R + r)" is a rule. "Revise circuits" is not.
3. Reattempt after 48 hours. Hide the answer and the explanation. Solve from the start.
4. Reread only the section that owns the rule. Do this when the rule fails twice, not after the first miss.
5. Put the rule in the next drill. A rule you never use again is a note, not a repair.

The full error-log format is in how to review wrong MDCAT answers. If you already use that log, keep it. The point here is that the chapter drill and the log should feed each other. The drill produces the error; the log turns it into a rule.

The weekly shape

A week with three chapters and one mixed set looks like this. Move the days to fit school, but keep the 48-hour gap between a set and its reattempt.

Three chapters a week is a pace, not a quota. If a chapter is weak, keep it for a second week and drop the third chapter. A repaired chapter is worth more than a chapter you only met.

When to move to the next chapter

Move on when three things are true. You score 80 percent or better on two consecutive sets of 25. The wrong answers are careless rather than unknown. You can answer five recall questions without the options.

Do not wait for 100 percent. A chapter you can test at 80 percent is ready for mixed practice, and it will return in maintenance. Waiting for a perfect score keeps you on the same chapter while the others go cold.

If the score is below 80 percent but the errors are all careless, the problem may be the clock or the reading, not the chapter. Slow the first read and mark the key word. If the errors are knowledge errors, go back to the note and the worked examples.

Five ways a chapter drill goes wrong

1. No timer. You answer at reading speed and the exam pace stays untested.
2. Checking the answer after each question. You never test the whole set, so the score is a string of small lessons rather than a measurement.
3. Staying on one chapter for three weeks. The chapter improves and the others fade.
4. Only easy questions. You practise what you already know and call it progress.
5. No mixed set. You never practise choosing the right method when the subject changes.

How we checked this

The syllabus reference comes from PMDC. The chapter map has 89 active chapters, and 80 have notes. The question counts and timings are editorial guidance, not official rules. We do not claim that a question count predicts a score.

Start with one chapter this week. Use Cell Structure and Function or Chemical Bonding, set a timer, and review the set before you start the next one.