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(SDMT) Symbol Digit Modalities Test 符號數字配對測驗
(SDMT) Symbol Digit Modalities Test 符號數字配對測驗

(SDMT) Symbol Digit Modalities Test 符號數字配對測驗

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Product Description

(SDMT) Symbol Digit Modalities Test 符號數字配對測驗

Benefit

Quickly screens for organic cerebral dysfunction in both children and adults


Translation

Available in Dutch & Spanish


Format

Patient substitutes a number, either orally or written, for randomized presentations of geometric figures


Admin Time

Less than 5 minutes


Ages

8 years and up


Publish Date

1973


Qualifications

Level C required.


The Symbol Digit Modalities Test (SDMT) detects cognitive impairment in less than 5 minutes. This simple, economical test is an ideal way for busy clinicians to screen for organic cerebral dysfunction in both children (8 years and older) and adults.   

Brief, easy to administer, and much less expensive than neuropsychological test batteries, the SDMT has demonstrated remarkable sensitivity in detecting not only the presence of brain damage, but also changes in cognitive functioning over time and in response to treatment.

The SDMT involves a simple substitution task that normal children and adults can easily perform. Using a reference key, the examinee has 90 seconds to pair specific numbers with given geometric figures. Responses can be written or oral, and for either response mode, administration time is just 5 minutes. The WPS AutoScore Test Form simplifies scoring.

Individuals with cerebral dysfunction perform poorly on the SDMT, in spite of normal or above-average intelligence.

Studies documented in the SDMT Manual have shown the test effective in a wide range of clinical applications, including:

- Differentiation of brain-damaged from psychotic patients
- Differentiation of organics from depressives
- Early detection of senile dementia and Huntington’s disease
- Differential diagnosis of children with learning disorders
- Early identification of children likely to have reading problems
- Assessment of change in cognitive functioning over time and/or with therapy in individuals with traumatic, vascular, neoplastic, and other brain insults
- Assessment of recovery from closed-head injury 

Because examinees can give written or spoken responses, the test can be used with almost anyone, including those with motor disabilities or speech disorders. And because it involves only geometric figures and numbers, the SDMT is relatively culture-free and can be administered to people who do not speak English.    

The written form of the test lends itself to group administration and is therefore an economical way to screen apparently normal children and adults for possible motor, visual, learning, or other cerebral dysfunction.

Unlike other symbol substitution tests, the SDMT also gives you the opportunity to compare written and spoken responses from the same individual. The Manual provides separate norms for written and oral administrations of the test. Norms for children are also separated by sex and age, whereas those for adults are separated by age group and level of education.

Like any single neuropsychological test, the SDMT is optimally used as part of a battery of instruments. It is highly effective as an initial screener because it requires only 5 minutes yet detects cerebral dysfunction of almost any kind.

Terms often used to search for (SDMT) Symbol Digit Modalities
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（SDMT）符號數字配對測驗（Symbol Digit Modalities Test）優點

可在短時間內快速篩查兒童及成人的器質性腦功能障礙

語言版本

提供荷蘭文及西班牙文版本

測驗形式

受測者需根據提示，將隨機出現的幾何圖形配對相應數字（可口頭或書寫作答）

測驗時間

少於5分鐘

適用年齡

8歲或以上

發佈年份

1973年

使用資格

需具備C級資格

符號數字配對測驗（SDMT）可於5分鐘內有效檢測認知功能障礙。此測驗簡單、經濟，特別適合繁忙的臨床人員用作快速篩查，適用於8歲以上兒童及成人。

SDMT施測簡便、成本遠低於完整的神經心理測驗組合，並已證實對於檢測腦部損傷的存在，以及追蹤認知功能隨時間或治療變化具有高度敏感性。

測驗方式

SDMT為一項簡單的符號替代任務，一般兒童及成人均可輕鬆完成。
受測者需根據參考對照表，在90秒內將指定數字與幾何圖形正確配對。

  • 可採用書寫或口頭作答
  • 無論哪種方式，整體施測時間約5分鐘
  • WPS自動計分表可簡化評分流程

即使智力正常或高於平均水平，患有腦功能障礙的人在此測驗中的表現通常較差。

臨床應用

SDMT手冊中的研究顯示，此測驗適用於多種臨床情境，包括：

  • 區分腦損傷患者與精神病患者
  • 區分器質性障礙與抑鬱症患者
  • 早期偵測老年性失智症及亨廷頓氏病
  • 鑑別有學習障礙的兒童
  • 早期識別可能出現閱讀困難的兒童
  • 評估因創傷、血管性、腫瘤性及其他腦部損傷引致的認知功能變化（包括治療前後比較）
  • 評估閉合性頭部損傷後的復原情況
測驗優勢

由於受測者可選擇口頭或書寫方式作答，本測驗適用範圍廣，包括：

  • 行動障礙人士
  • 語言或言語障礙人士

此外，由於測驗僅涉及幾何圖形與數字，文化偏差較低，即使不懂英語的人士亦可進行測試。

書寫版本亦適合團體施測，是篩查看似正常兒童及成人是否存在運動、視覺、學習或其他腦功能障礙的具成本效益工具。

評分與常模

SDMT的一大特色是可比較同一受測者的書寫與口頭表現。

手冊提供：

  • 書寫與口頭測驗的獨立常模
  • 兒童常模（按性別及年齡劃分）
  • 成人常模（按年齡及教育程度劃分）
使用建議

與其他單一神經心理測驗一樣，SDMT最適合作為測驗組合的一部分使用。
然而，由於其只需5分鐘即可完成且具高度敏感性，非常適合作為初步篩查工具，可偵測多種類型的腦功能障礙。

常用搜尋關鍵詞

Symbol Digit Modalities Test、SDMT、符號數字測驗、說明、PDF、下載、評分

W-129SDMT Kit 套裝Email for quotation 電郵詢價
W-129ASDMT WPS AutoScore Test Form (Pack of 25) 自動計分表（25份裝） Email for quotation 電郵詢價
W-129CSDMT Manual 使用手冊Email for quotation 電郵詢價

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