Calculate the total score without using JS code

categories/quiz/create-a-scored-survey-without-js-code.md

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+# Create a Scored Questionnaire Without JavaScript Code in SurveyJS
+
+## Problem
+
+Doctors often need to build custom questionnaires for their practice without coding. These forms may need to calculate scores from patient responses to support treatment decisions. Scoring rules vary: for example, the PHQ-9 for depression screening uses summed values, while eligibility checks rely on true/false conditions.
+
+## Solution
+
+Even without JavaScript, you can implement scoring in two ways:
+
+- **Multiple-choice scoring (dropdowns, radio groups)**      
+Assign numeric values to answer options and use an expression to sum them into a total score. See [Survey JSON Schema for PHQ-9 Scoring](#survey-json-schema-for-phq-9-scoring).
+
+- **Calculated values**      
+For yes/no eligibility rules, create a calculated value with an expression that evaluates conditions (e.g., "age over 18 and not pregnant"). See [Survey JSON Schema for Eligibility Screening](#survey-json-schema-for-eligibility-screening).
+
+### Survey JSON Schema for PHQ-9 Scoring
+
+```json
+{
+  "title": "PATIENT HEALTH QUESTIONNAIRE-9 (PHQ-9)",
+  "pages": [
+    {
+      "name": "page1",
+      "title": "Over the last 2 weeks, how often have you been bothered by any of the following problems?",
+      "elements": [
+        {
+          "type": "radiogroup",
+          "name": "q1",
+          "title": "Little interest or pleasure in doing things",
+          "choices": [
+            { "value": "0", "text": "Not at all" },
+            { "value": "1", "text": "Several days" },
+            { "value": "2", "text": "More than half the days" },
+            { "value": "3", "text": "Nearly every day" }
+          ]
+        },
+        {
+          "type": "radiogroup",
+          "name": "q2",
+          "title": "Feeling down, depressed, or hopeless",
+          "choicesFromQuestion": "q1"
+        },
+        {
+          "type": "radiogroup",
+          "name": "q3",
+          "title": "Trouble falling or staying asleep, or sleeping too much",
+          "choicesFromQuestion": "q1"
+
+        },
+        {
+          "type": "radiogroup",
+          "name": "q4",
+          "title": "Feeling tired or having little energy",
+          "choicesFromQuestion": "q1"
+        },
+        {
+          "type": "radiogroup",
+          "name": "q5",
+          "title": "Poor appetite or overeating",
+          "choicesFromQuestion": "q1"
+        },
+        {
+          "type": "radiogroup",
+          "name": "q6",
+          "title": "Feeling bad about yourself — or that you are a failure or have let yourself or your family down",
+          "choicesFromQuestion": "q1"
+        },
+        {
+          "type": "radiogroup",
+          "name": "q7",
+          "title": "Trouble concentrating on things, such as reading the newspaper or watching television",
+          "choicesFromQuestion": "q1"
+        },
+        {
+          "type": "radiogroup",
+          "name": "q8",
+          "title": "Moving or speaking so slowly that other people could have noticed? Or the opposite — being so fidgety or restless that you have been moving around a lot more than usual",
+          "choicesFromQuestion": "q1"
+        },
+        {
+          "type": "radiogroup",
+          "name": "q9",
+          "title": "Thoughts that you would be better off dead or of hurting yourself in some way",
+          "choicesFromQuestion": "q1"
+        },
+        {
+          "type": "expression",
+          "name": "totalScoreInfo",
+          "title": "Total Score: ",
+          "titleLocation": "left",
+          "showNumber": false,
+          "expression": "{q1} + {q2} + {q3} + {q4} + {q5} + {q6} + {q7} + {q8} + {q9}"
+        }
+      ]
+    }
+  ],
+  "showQuestionNumbers": true
+}
+```
+
+[Open in Plunker](https://plnkr.co/edit/GiNUr7uq0PfqCftM)
+
+### Survey JSON Schema for Eligibility Screening
+
+<!-- TODO: Update the schema after https://github.com/surveyjs/survey-library/issues/10414 -->
+
+```json
+{
+  "title": "Medical Eligibility Screening Survey",
+  "description": "Please answer the following questions honestly to help us determine your eligibility.",
+  "calculatedValues": [
+    {
+      "name": "isEligible",
+      "expression": "age({dob}) >= 18 and !{pregnant} and !({conditions} anyof ['Heart disease','Cancer','Immunodeficiency'])",
+      "includeIntoResult": true
+    }
+  ],
+  "pages": [
+    {
+      "name": "basic_info",
+      "elements": [
+        {
+          "type": "text",
+          "name": "fullName",
+          "title": "Full Name",
+          "isRequired": true
+        },
+        {
+          "type": "text",
+          "inputType": "date",
+          "name": "dob",
+          "title": "Date of Birth",
+          "isRequired": true
+        },
+        {
+          "type": "radiogroup",
+          "name": "gender",
+          "title": "Gender",
+          "isRequired": true,
+          "choices": ["Male", "Female", "Other", "Prefer not to say"]
+        }
+      ]
+    },
+    {
+      "name": "medical_history",
+      "elements": [
+        {
+          "type": "checkbox",
+          "name": "conditions",
+          "title": "Do you have or have you ever been diagnosed with any of the following?",
+          "isRequired": true,
+          "choices": [
+            "Heart disease",
+            "High blood pressure",
+            "Diabetes",
+            "Asthma or other respiratory condition",
+            "Cancer",
+            "Immunodeficiency"
+          ],
+          "showNoneItem": true,
+          "noneText": "None of the above",
+        },
+        {
+          "type": "boolean",
+          "name": "pregnant",
+          "title": "Are you currently pregnant?",
+          "visibleIf": "{gender} = 'Female'"
+        },
+        {
+          "type": "boolean",
+          "name": "medications",
+          "title": "Are you currently taking any prescription medications?"
+        },
+        {
+          "type": "comment",
+          "name": "medications_list",
+          "title": "If yes, please list them",
+          "visibleIf": "{medications} = true"
+        }
+      ]
+    },
+    {
+      "name": "risk_factors",
+      "elements": [
+        {
+          "type": "boolean",
+          "name": "allergies",
+          "title": "Do you have any severe allergies (e.g., to medication, food, latex)?",
+          "isRequired": true
+        },
+        {
+          "type": "boolean",
+          "name": "smoking",
+          "title": "Do you currently smoke or use tobacco products?"
+        },
+        {
+          "type": "boolean",
+          "name": "alcohol",
+          "title": "Do you consume alcohol regularly?"
+        },
+        {
+          "type": "boolean",
+          "name": "drug_use",
+          "title": "Do you use recreational drugs?"
+        }
+      ]
+    },
+    {
+      "name": "final",
+      "elements": [
+        {
+          "type": "comment",
+          "name": "other_concerns",
+          "title": "Please list any other health concerns you think we should be aware of"
+        },
+        {
+          "type": "expression",
+          "name": "eligibility_result",
+          "title": "Eligibility Result",
+          "showNumber": false,
+          "expression": "iif({isEligible} = true, '✅ You are eligible.', '❌ You are not eligible.')"
+        }
+      ]
+    }
+  ],
+  "showQuestionNumbers": true,
+  "completeText": "Submit"
+}
+```
+
+<!-- TODO: Update Plunker after https://github.com/surveyjs/survey-library/issues/10414 -->
+
+[Open in Plunker](https://plnkr.co/edit/Bu1pVNmnU63rU7Od)
+
+## Learn More
+
+* [SurveyJS Expressions](https://surveyjs.io/form-library/documentation/design-survey/conditional-logic#expressions)