diff --git a/src/dropdownListModel.ts b/src/dropdownListModel.ts
index cda215a4d5..a09084504b 100644
--- a/src/dropdownListModel.ts
+++ b/src/dropdownListModel.ts
@@ -129,6 +129,7 @@ export class DropdownListModel extends Base {
           this.resetItemsSettings();
         }
       }
+      this.question.ariaExpanded = option.isVisible ? "true" : "false";
       this.question.processPopupVisiblilityChanged(this.popupModel, option.isVisible);
     });
   }
@@ -374,6 +375,7 @@ export class DropdownListModel extends Base {
   constructor(protected question: Question, protected onSelectionChanged?: (item: IAction, ...params: any[]) => void) {
     super();
     this.htmlCleanerElement = DomDocumentHelper.createElement("div") as HTMLDivElement;
+    this.question.ariaExpanded = "false";
     question.onPropertyChanged.add(this.questionPropertyChangedHandler);
     this.showInputFieldComponent = this.question.showInputFieldComponent;
 
diff --git a/src/question.ts b/src/question.ts
index 732e002e1e..a76f936648 100644
--- a/src/question.ts
+++ b/src/question.ts
@@ -125,6 +125,7 @@ export class Question extends SurveyElement<Question>
   public themeChanged(theme: ITheme): void { }
   @property({ defaultValue: false }) isMobile: boolean;
   @property() forceIsInputReadOnly: boolean;
+  @property() ariaExpanded: "true" | "false";
 
   constructor(name: string) {
     super(name);
@@ -2680,9 +2681,7 @@ export class Question extends SurveyElement<Question>
       return null;
     }
   }
-  public get ariaExpanded(): string {
-    return null;
-  }
+
   public get ariaErrormessage(): string {
     if (this.isNewA11yStructure) return null;
 
diff --git a/src/question_dropdown.ts b/src/question_dropdown.ts
index 1698eb8f7a..4e2b212cb3 100644
--- a/src/question_dropdown.ts
+++ b/src/question_dropdown.ts
@@ -288,10 +288,6 @@ export class QuestionDropdownModel extends QuestionSelectBase {
   public get popupModel(): PopupModel {
     return this.dropdownListModel?.popupModel;
   }
-  public get ariaExpanded(): string {
-    const popupModel = this.popupModel;
-    return !!popupModel && popupModel.isVisible ? "true" : "false";
-  }
 
   public onOpened: EventBase<QuestionDropdownModel> = this.addEvent<QuestionDropdownModel>();
   public onOpenedCallBack(): void {
diff --git a/src/question_rating.ts b/src/question_rating.ts
index 6b04752ab5..7fb934f74b 100644
--- a/src/question_rating.ts
+++ b/src/question_rating.ts
@@ -867,11 +867,7 @@ export class QuestionRatingModel extends Question {
   protected getDesktopRenderAs(): string {
     return (this.displayMode == "dropdown") ? "dropdown" : "default";
   }
-  public get ariaExpanded(): string {
-    const popupModel = this.dropdownListModel?.popupModel;
-    if (!popupModel) return null;
-    return popupModel.isVisible ? "true" : "false";
-  }
+
   private dropdownListModelValue: DropdownListModel;
   public set dropdownListModel(val: DropdownListModel) {
     this.dropdownListModelValue = val;
diff --git a/src/question_tagbox.ts b/src/question_tagbox.ts
index 300a8e5d8c..49f7a6965b 100644
--- a/src/question_tagbox.ts
+++ b/src/question_tagbox.ts
@@ -156,10 +156,6 @@ export class QuestionTagboxModel extends QuestionCheckboxModel {
   public get popupModel(): PopupModel {
     return this.dropdownListModel?.popupModel;
   }
-  public get ariaExpanded(): string {
-    const popupModel = this.popupModel;
-    return !!popupModel && popupModel.isVisible ? "true" : "false";
-  }
 
   public getControlClass(): string {
     return new CssClassBuilder()
diff --git a/tests/markup/etalon_dropdown.ts b/tests/markup/etalon_dropdown.ts
index 10750673ef..c66f9bd7ee 100644
--- a/tests/markup/etalon_dropdown.ts
+++ b/tests/markup/etalon_dropdown.ts
@@ -328,8 +328,14 @@ registerMarkupTests(
       },
       initSurvey: (survey) => {
         survey.focusFirstQuestionAutomatic = false;
-        survey.getQuestionByName("name")["popupModel"];
-        survey.getQuestionByName("name")["dropdownListModel"].inputStringRendered = "o";
+        survey.onAfterRenderQuestion.add((target, options) => {
+          options.question["popupModel"];
+          options.question["dropdownListModel"].inputStringRendered = "o";
+        });
+      },
+      event: "onAfterRenderSurvey",
+      getElement: el => {
+        return <HTMLElement>el?.querySelector(".sv_q.sv_qstn > div") as HTMLElement;
       },
       timeout: 300,
       removeIds: true,
@@ -355,8 +361,14 @@ registerMarkupTests(
       },
       initSurvey: (survey) => {
         survey.focusFirstQuestionAutomatic = false;
-        survey.getQuestionByName("name")["popupModel"];
-        survey.getQuestionByName("name")["dropdownListModel"].inputStringRendered = "o";
+        survey.onAfterRenderQuestion.add((target, options) => {
+          options.question["popupModel"];
+          options.question["dropdownListModel"].inputStringRendered = "o";
+        });
+      },
+      event: "onAfterRenderSurvey",
+      getElement: el => {
+        return <HTMLElement>el?.querySelector(".sv_q.sv_qstn > div") as HTMLElement;
       },
       timeout: 300,
       removeIds: true,