Logic rules

Logic rules can be used to guide your respondents through the survey so they don't waste time on questions not fitting their features. It helps you to dig up information you need from respondents and also helps to improve the reliability of your data.

When respondents open your surveys, all questions related to a logic rule are hidden. When and only when a certain choice is selected, related questions will show.

Now let's see how to set up logic rules for your survey:

Step 1: Click on the [Logic] tab to open Logic page.

Step 2: Select a question and click [Add Rules] button.

Step 3: Click [Add Rules] button after a choice.

Step 4: Select those questions should be linked to this choice and click [Save] to continue.

Tips on setting up Logic Rules

When you set up logic rules to a question choice, you only need to select question directly related. You don't need to select all questions after this one.

Let's see an example below. No matter which choice respondents select in question 1, all of them have to answer question 4. So when you edit rules for question 1, you don't select question 4. When your respondents open this survey, they see question 1 and 4 all the time and question 2 or question 3 will emerge based on their choice in question 1.

1. Which do you usually drink, juice or alcoholic beverage? (Always show)
A. Juice (Select question 2)
B. Alcoholic beverage (Select question 3)

2. What kind of juice do you prefer? (Show if respondents select "Juice" in question 1)
A. Orange juice
B. Apple juice
C. Grape juice

3. What kind of alcoholic beverage do you prefer? (Show if respondents select "Alcoholic beverage" in question 1)
A. Beer
B. Wine
C. Spirits

4. Where do you usually buy your drinks? (Always show)
A. Supermarket
B. Corner shop
C. Home-made

On Logic editing page, there is an "End survey" option. This option should only be used in multiple page surveys and can only be triggered by clicking [Next page] button. Let's see an INCORRCT example below.

1.Have you ever purchased any product from our supermarket? (Always show)
A. Yes
B. A． No (Select "End survey" option)

2.How would you describe our products? (Always show)
A. Good
B. Average
C. Bad

3.Please leave your contact information. (Always show)

It seems the survey maker don't want respondents who selected B in question 1 to continue answering other questions. But because the other 2 questions were not linked to any choices, they would always show when respondents open this survey. Even if they selected choice B in question 1, they still need to answer the rest questions. Logic rule set in this survey is completely void. Then how to make it work? Turn it into a 2-page survey. Page 1

1. Have you ever purchased any product from our supermarket?
A. Yes
B. No (Check "End survey" option)
Page 2

2. How would you describe our products?
A. Good
B. Average
C. Bad

3. Please leave your contact information.

Now, when respondents open this survey, they can only see question 1. If they select choice B, this survey ends. When and only when they select choice A, the second page will show and require them to finish the other 2 questions.
Maybe you have already realized that you can do this in 1 page survey as well. You just need to turn the logic in our last example upside down. The right logic here should be: "Only those selected choice A could see the other 2 questions."

1. Have you ever purchased any product from our supermarket? (Always show)
A. Yes (Select Question 2 and Question 3)
B. No

2. How would you describe our products? (Show if respondents select "Yes")
A. Good
B. Average
C. Bad

3.Please leave your contact information. (Show if respondents select "Yes")

In brief, always remember that "End survey" option can only be used in multiple page surveys.