本研究以記憶廣度（memory span）為課題，檢驗複誦法和聽指法之量測結果是否穩定，並呈現聽損幼兒在記憶廣度之發展趨勢。本研究的受試者除了有聽損幼兒依其配戴助聽器或人工電子耳分為兩組，另有一組聽力正常的孩童，做為聽損組第一次量測時的對照組。記憶廣度之外，三組幼童也進行了矩陣推理測驗，以確認聽損受試者在視覺處理和抽象推理等一般性的智力表現上無異於同儕。量測結果顯示：（一）聽指法和複誦法皆具良好的再測信度；（二）若以複誦法的量測結果為效標，第一與第二次聽指法的量測結果皆具顯著的同時效度；（三）複誦法的量測結果顯示，電子耳組的記憶廣度較聽常組低，而在聽指法的量測結果中，聽損組與聽常組之間並無顯著差異；（四）在聽指法所量測的結果中，無論是助聽器組或電子耳組，皆顯示廣度值隨時間出現顯著的增長，亦即聽損受測者的記憶廣度並未隨著聽力功能的缺損而停止發展。研究結果亦符合量測時採用的反應形式可能影響記憶廣度估計值的想法。

In studies focusing on children with hearing loss (HL), the assessment of memory span has often relied on the use of a verbal digit span task. Recently, an audiovisual digit span task has been introduced, and the primary objective of this study was to evaluate its test-retest reliability and concurrent validity. By establishing temporal reliability for both types of digit span tasks and verifying the concurrent validity of the audiovisual measure, robust results were obtained. Notably, the findings revealed an increase in digit span over time in the audiovisual task, indicating the continuous development of memory span in children with HL. It is essential to acknowledge that relying solely on a verbal measure to assess memory span in children with HL may lead to an underestimation. The introduction of the audiovisual measure helps fill this gap, providing a more comprehensive approach to assessment.