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By default, Quizify sums all selected answer values into a final total. The custom formula option gives you more control — you can weight certain questions more heavily or apply any combination of the supported math operators (+, -, *, /) to produce a more precise score.

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What Formula Scoring Is

The custom formula option lets you define exactly how answer values are combined into a final score. Instead of a simple sum, you can use any combination of the supported operators — +, -, *, / — to:
  • Give certain questions more influence over the final score by applying a multiplier
  • Create separate score variables for different question groups and combine them
  • Subtract values where an answer should reduce the score
This is a more complex setup than standard scoring and is suited to quizzes where the standard sum-of-all-values approach does not produce the right outcomes.

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When to Use Formula Scoring

Standard scoring works well for most quizzes. Consider formula scoring when:
  • Some questions should carry more weight than others — for example, a question about primary concern should matter more than a question about preference
  • You want to score different sections of the quiz independently and combine the section scores in a custom way
  • Your recommendation logic cannot be expressed as a simple total — for example, if a specific combination of answers should override the usual scoring outcome

Advanced formula scoring requires careful planning and thorough testing before publishing. Errors in a formula can produce unexpected results for customers. If standard scoring meets your needs, use it — it is simpler to set up and maintain.

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How to Enable Custom Formula Scoring

  1. From the Quizify dashboard, click the edit quiz icon next to your quiz to open the quiz editor
  2. Click Recommendation in the left menu
  3. Find the scoring settings
  4. Select the custom formula option
  5. Save
Once enabled, the formula input will appear where you can define your calculation.

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How to Define a Custom Formula

  1. Click Recommendation in the left menu of the quiz editor and enable the custom formula option
  2. Define your score variables — these represent the values you want to track separately (for example, Score A for questions 1–3 and Score B for questions 4–6)
  3. Assign which answers contribute to which variables
  4. Write the formula that combines the variables using +, -, *, or / operators (for example, (A * 2) + B)
  5. Save the formula

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Default Sum vs. Custom Formula

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Example: Weighting Certain Questions More Heavily

Imagine a quiz with 10 questions. Questions 1–3 are about primary skin concerns, which should have twice the weight of questions 4–10 about lifestyle preferences. Using formula scoring, you could:
  • Create variable A for questions 1–3
  • Create variable B for questions 4–10
  • Define the formula as: Final Score = (A × 2) + B
This means the primary concern questions contribute twice as much to the final score as the lifestyle questions, giving the recommendation more influence from the customer’s main concern.