Create Engaging Assessments: Duolingo's Case

For brands that teach or train—whether it’s language apps, online courses, or corporate training programs—keeping users engaged while measuring progress is a big challenge. You don’t want assessments to feel like a chore; you want them to feel like a natural part of learning. That’s where quiz maker and test maker come in.

These tools let you build fun, targeted quizzes and tests that fit your brand’s vibe—no boring, one-size-fits-all templates. For Duolingo, the popular language-learning app, using quiz maker and test maker didn’t just make assessments less tedious; it helped users stay motivated and track how much they were actually learning. They turned “taking a test” into a game-like experience—and users loved it.

1. Duolingo’s Problem: Assessments Felt Like a “Grind”

Duolingo’s whole appeal is its playful approach to language learning—bright colors, cute mascots (like Duo the Owl), and short, gamified lessons. But a while back, they noticed a drop-off: users would stick with lessons, but skip the end-of-unit assessments. Why? Because the assessments felt like a slog—long, text-heavy, and nothing like the fun lessons they’d just completed.

Duolingo’s team knew they needed to fix this. They didn’t want to get rid of assessments (they’re key to measuring progress), but they needed to make them feel more engaging. They decided to use a quiz maker and test maker to rebuild their assessments—this time, with the same playfulness as their lessons.

2. Using Test Generator to Make Assessments Feel “Gamified”

First, Duolingo’s team used a test generator to rethink the structure of their end-of-unit tests. They didn’t want long, linear exams—they wanted short, interactive chunks that felt like extensions of their lessons.

With the test generator, they added things like:

“Match the word to the image” questions (instead of just typing translations)

Timed “quick quiz” sections (with points for fast, correct answers)

“Mystery word” challenges (where users guessed a word based on clues, then got feedback)

They also used a quiz maker to add small rewards—like virtual “lingots” (Duolingo’s in-app currency) for finishing an assessment, or a little animation of Duo cheering when users got a question right. The goal was to make users think, “That was fun!” instead of “Ugh, I have to take a test.”

To make sure the assessments still measured real progress, they used a question generator to pull questions that matched what users had learned in the unit. No random, out-of-context questions—just targeted checks to see if users had mastered key words and phrases.

3. Exam Generator & Exam Maker: Scaling for Millions of Users

Duolingo has over 300 million users, so they needed tools that could handle scale. That’s where an exam generator and exam maker came in.

With the exam generator, they could create different versions of the same assessment—so users in the same unit didn’t get identical questions. This prevented cheating (no sharing answers online!) and kept the tests feeling fresh. The exam maker also let them track data across users—like which questions were most often missed, or how long users took to complete a test.

For example, they noticed that 60% of Spanish learners struggled with “ser vs. estar” (two verbs for “to be”) in assessments. So they added a quick, targeted quiz on that topic before the end-of-unit test—users got extra practice, and the number of missed questions dropped by 45%.

This is where tools like SurveyMars stand out. While Duolingo used custom-built tools for this project, SurveyMars offers a quiz maker and test maker that’s flexible enough for brands of all sizes—from small online course creators to big apps. SurveyMars’ test generator has pre-built templates for education and training, so you don’t have to start from scratch. It also lets you add interactive elements (like images or short videos) to questions—just like Duolingo did. Plus, SurveyMars’ question generator can auto-create questions based on your content, saving you hours of work.

4. The Results: More Engagement, Better Learning

After rolling out the new assessments, Duolingo saw big changes:

Assessment completion rates jumped from 40% to 78%—users were no longer skipping tests.

User retention (sticking with the app for 30+ days) went up by 22%—engaging assessments kept users motivated to keep learning.

Feedback from users was overwhelmingly positive: One user wrote, “I used to dread the tests, but now I look forward to them—they feel like a game!”

Duolingo also used their quiz maker to add “weekly review quizzes” based on past units. These quizzes had no pressure (no points lost for wrong answers)—just a way to refresh memory. Users loved this too: 65% of active users started taking the weekly quizzes, and report cards showed better long-term retention of words and phrases.

5. How to Use Quiz Maker & Test Maker for Your Brand (Even If You’re Not Duolingo)

You don’t need millions of users to make assessments engaging. Here’s how to start with a quiz maker and test maker:

1.Match your brand’s vibe: If your brand is playful (like Duolingo), add colors, animations, or rewards. If you’re a corporate training tool, keep it clean but interactive—use case studies or real-world scenarios in questions.

2.Keep it short: Duolingo’s assessments are 5-8 questions max. Long tests lead to fatigue—stick to what’s essential.

3.Use a question generator for speed: SurveyMars’ question generator can turn your content (like a blog post or training manual) into quiz questions in minutes. No more typing every question yourself.

4.Add feedback: Don’t just say “right” or “wrong”—explain why. Duolingo tells users, “Estar is used for temporary states!”—this helps users learn, not just test.

5.Track what matters: Use an exam maker to see which questions users struggle with. This tells you what content to revisit (like Duolingo did with “ser vs. estar”).

Final Takeaway: Quiz Maker & Test Maker = More Than Just Assessments

Duolingo’s story shows that quiz maker and test maker aren’t just tools for checking progress—they’re tools for keeping users engaged. When you make assessments feel like a natural, fun part of your brand’s experience, users don’t just take them—they look forward to them.

Its quiz maker and test maker are simple to use (no coding needed), and its test generator and question generator save you time. Whether you’re teaching a language, training employees, or creating a quiz for your blog, SurveyMars helps you build assessments that users will actually want to take.

At the end of the day, it’s not about “testing” users—it’s about helping them learn and stay connected to your brand. And with the right quiz maker and test maker, that’s easier than you think.

Q1: Are there rules for designing effective scale questions (e.g., on SurveyMars)?

A: Yes—SurveyMars recommends following these rules to ensure reliable data:

1.Use an odd number of scale points (e.g., 5 or 7 points) to include a neutral middle option (avoids forcing respondents to choose a side).

2.Label all scale points clearly: Don’t just label the first and last options (e.g., for a 5-point scale, label 1 = "Very Dissatisfied," 2 = "Dissatisfied," 3 = "Neutral," 4 = "Satisfied," 5 = "Very Satisfied").

3.Keep the scale consistent: Use the same scale direction (e.g., "low → high") throughout your survey (e.g., don’t switch from "1 = Poor" to "1 = Excellent" mid-survey).

4.Avoid leading language: Phrase questions neutrally (e.g., "How easy was it to use the tool?" instead of "Wasn’t the tool easy to use?").

Q2: How are scale question responses analyzed (e.g., on SurveyMars)?

A: SurveyMars automatically processes scale question data into actionable insights:

1.Basic stats: It calculates averages (e.g., "Average satisfaction score = 4.2/5"), percentages (e.g., "75% rated 4+"), and medians.

2.Visualizations: Generates charts (bar graphs, pie charts) to show how responses are distributed (e.g., "How many respondents chose 1 vs. 5 stars").

3.Group comparisons: Lets you filter results by demographics (e.g., "Satisfaction scores by age group") to spot trends.

For example, if 80% of respondents rate your customer service 4–5 on a 5-point scale, you can conclude strong service satisfaction.

Q3: I included a "Strongly Agree/Disagree" Likert scale for a fact-based question (e.g., "Our app loads in 2 seconds")—is this a mistake? What to use instead on SurveyMars?

A: Yes—scale questions measure subjective attitudes, not objective facts. Asking respondents to "agree/disagree" with a fact (e.g., app load time) leads to meaningless data (they may not know the actual load time). On SurveyMars, replace this with:

1.A subjective scale question tied to their experience (e.g., "How fast do you think our app loads? 1=Very Slow, 5=Very Fast").

2.If you need factual data, use a single-choice question (e.g., "How long does our app take to load? A. <2 seconds, B. 2–5 seconds")—this aligns with SurveyMars’ best practices for question-type matching.

Q4: My scale question has too many options (e.g., 10-point scale for "how often you use our service")—do respondents struggle with this? How to simplify on SurveyMars?

A: 10-point scales often cause decision fatigue (respondents randomly pick midpoints to save time), especially for casual users. On SurveyMars, simplify by:

1.Using a 5–7 point scale (the sweet spot for balance between detail and ease, per SurveyMars’ user experience rules).

2.If you need granularity, rephrase the scale to focus on specific behaviors (e.g., "How often do you use our service? 1=Never, 2=Once a Month, 3=Once a Week, 4=3–5 Times a Week, 5=Daily")—this turns abstract numbers into concrete actions, reducing confusion.

Q5: Can adding too many "Not Applicable (NA)" options to scale questions skew results? How to use NA correctly on SurveyMars?

A: Overusing NA (e.g., adding it to every scale question) reduces your usable sample size—this is a mistake if the question applies to most respondents. On SurveyMars, use NA correctly by:

1.Only adding NA for questions that truly don’t apply to some groups (e.g., "Rate our in-store return policy" for online-only shoppers).

2.In the "Scale Settings," toggle "Add NA Option" only when needed—avoid it for questions relevant to all respondents (e.g., "How easy was it to create an account?").SurveyMars’ "Response Analytics" will separate NA responses from the main scale, so they don’t skew averages (e.g., an NA won’t count as a "3" in a 5-point scale).