Multiple Choice vs Open Questions: Which Approach Should You Choose?
Edesio Team
Author
The choice between multiple choice questions (MCQs) and open questions is a recurring pedagogical debate. Each format has specific advantages and limitations. At Edesio, we offer all three question types (single-answer MCQs, multiple-answer MCQs, and open questions) because combining them optimizes learning.
Single-answer MCQs: speed and objectivity
The classic MCQ presents several options, only one of which is correct. It is the most widely used format in standardized assessments.
Advantages of single-answer MCQs:
- ●Instant, objective grading
- ●Broad curriculum coverage in a short time
- ●Reduced stress: students have hints with the answer choices
- ●Easier statistical analysis of results
- ●Suited to large student cohorts
Limitations of single-answer MCQs:
- ●Risk of guessing (25% with 4 choices)
- ●Does not measure writing ability
- ●May favor recognition over recall
- ●Difficulty assessing complex reasoning
Multiple-answer MCQs: more nuance
This format allows students to select several correct answers from the options. It significantly reduces the role of chance and assesses finer understanding.
The probability of answering correctly by chance drops from 25% (simple MCQ) to less than 5% (multiple-answer MCQ)
Source: Combinatorial analysis
When to use multiple-answer MCQs:
- ●To assess understanding of multi-faceted concepts
- ●When several items on a list must be memorized
- ●To verify mastery of criteria or characteristics
- ●For review, to go deeper after simple MCQs
Open questions: depth and expression
Open questions ask students to formulate their own answer without answer choices. They assess different, complementary skills.
Advantages of open questions:
- ●Assessment of reflection and argumentation skills
- ●Measurement of deep understanding, not just recognition
- ●Development of writing skills
- ●Impossible to answer by guessing
- ●Reveals the student's thought process
Limitations of open questions:
- ●Longer, more subjective grading
- ●May penalize students with expression difficulties
- ●Fewer questions possible in a given time
- ●Increased anxiety for some students
The winning combination
"Optimal assessment combines different formats to measure factual knowledge, conceptual understanding, and analytical skills."
— Principles of test theory
Research in education sciences recommends varying assessment formats. This mixed approach makes it possible to:
Benefits of combining formats:
- ●Assess different cognitive skills (memorization, comprehension, analysis)
- ●Reduce biases linked to a single format
- ●Maintain engagement through variety
- ●Prepare students for different types of exams
- ●Offer multiple opportunities to demonstrate knowledge
How Edesio helps you
With Edesio, you can precisely configure the distribution of question types for each session. Our AI automatically generates varied questions from your course materials, which you can then adjust.
Edesio lets teachers define the exact number of simple MCQs, multiple-answer MCQs, and open questions for each session, offering full control over your assessment strategy.
Recommended distribution by objective:
- ●Quick review: 70% simple MCQs, 20% multiple-answer MCQs, 10% open questions
- ●In-depth assessment: 40% simple MCQs, 30% multiple-answer MCQs, 30% open questions
- ●Oral exam preparation: 20% MCQs, 80% open questions
- ●Discovering a new chapter: 80% MCQs to consolidate the basics
Sources and references
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