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Dyslexia Action Shop
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Symbol Digit Modalities Test

Excl. Tax: £116.00 Incl. Tax: £139.20

Product Code: SDM

Please note: VAT is added at checkout.

Author: Aaron Smith PhD

SYNOPSIS
A measure of concentration and decision making
AGE RANGE
8 years to Adult
ADMINISTRATION TIME
Individual 5 minutes
The Symbol Digit Modalities Test (SDMT) detects cognitive impairment in less than 5 minutes is 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 AutoScoreTM Test Form simplifies scoring.
Individuals with cerebral dysfunction perform poorly on the SDMT, in spite of normal or above average intelligence.

Examinees can give written or spoken responses and therefore the test can be used with almost anyone, including those with motor disabilities or speech disorders. As it involves only geometric figures and numbers, the SDMT is relatively culture free as well, 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.

Complete kit includes: manual and 25 WPS Autoscore Test Forms.

Delivery

Expected delivery time is within 5 working days (any items not in stock will be put on back order and sent when available). UK delivery is charged at the following rates:

Orders up to £150.00: £6.30

Orders over £150.01: Free

Overseas deliveries will be calculated on an order by order basis and will be dependent on weight and destination. The total cost will be displayed at checkout.

Returns

If you decide to return your order please return it in a saleable condition, with original packaging, seals unbroken and within 30 days of date of invoice. Please call us on 01784 222339 to advise us of the return. Please be aware that return postage and insurance costs of returns will not be refunded to you. Please obtain a proof of posting as you will be liable for the goods until received at our offices in the required condition.

Cancellations

Under the Consumer Protection (Distance Selling) Regulations 2000 customers in the European Union have the right to cancel their order within a period of 7 working days. We require written confirmation of cancellation either by letter or e-mail.

Shortages/Damages

If any part of your order is damaged, incorrect or incomplete please contact the Customer Services Team on 01784 222339 and we will arrange for the item to be returned and a replacement sent out.

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