Auditory Processing Disorder Testing

It is recommended that audiologists use established, reliable tests with both verbal and non-verbal stimuli that assess different auditory processes. Auditory Processing Disorder Tests are often broken down into four categories. The categories are 1) DICHOTIC LISTENING for binaural integration and separation, 2) TEMPORAL PROCESSING for auditory pattern temporal ordering-APTO and temporal resolution), 3) MONAURAL LOW-REDUNDANCY (monaural separation closure-MSC), and 4) BINAURAL INTERACTION. Auditec sells tests for each of these categories.

DICHOTIC LISTENINGPediatric Speech Intelligibility (ages 3-6); Competing Sentences (ages 5 and up); Dichotic Digits (ages 7 and up); Synthetic Sentence Identification-Contralateral Competing Message (ages 11 and up)

TEMPORAL TESTS: Random Gap Detection Test (non-verbal stimuli for ages 5 and up); Gaps In Noise (non-verbal stimuli for ages 7 and up); Pitch Pattern (non-verbal stimuli for ages 8 and up); Duration Pattern Sequence (non-verbal stimuli for ages 11 and up)

MONAURAL LOW-REDUNDANCY: Pediatric Speech Intelligibility (ages 3-6); Time Compressed Sentence Test (ages 6 and up); Time Compressed Word Lists (ages 11 and up); Low Pass Filtered Tests (ages 11 and up); Synthetic Sentence Identification – Ipsilateral Competing Message (ages 11 and up)

BINAURAL INTERACTION: Spondee Binaural Fusion (appropriate for children and adults); Rapid Alternating Speech (appropriate for children and adults); Masking Level Difference (appropriate for children and adults)

cUSTOMAuditec allows audiologists to design their own custom auditory processing disorder battery with any of the above tests. You can determine which tests will be used to examine based on your patient’s needs and age range. Once you have compiled a list of your test selections, email it along with your state/country to auditecinfo@auditec.com for an exact quote with ordering instructions.

You can receive several popular tests at a discounted price by selecting the APD Battery. The APD Battery (CD170-9) includes Gaps In Noise (GIN), Random Gap Detection Test-Standard (RGDT), Pitch (Frequency) Pattern Sequence – Musiek Version, Duration Pattern Sequence – Musiek Version, and Masking Level Difference-Tones.

I hope this information is helpful to you as you determine which auditory processing tests are right for you for your patients. If you want to learn more about auditory processing disorder assessment, Auditec recommends a book by Teri James called Assessment & Management of Central Auditory Processing Disorders (available on Amazon). You may also find these links helpful:

Dichotic Digits – Standard Version

The Dichotic Digits-Standard version test is an auditory processing disorder test using verbal stimuli. It is considered a dichotic test for binaural integration sensitive to brainstem, cortical, and corpus callosal lesions.

This established test assesses the ability to process different materials arriving at the ears simultaneously. Fifty sets of digits, one through nine (except seven, having two syllables) are presented either in single pairs or double pairs. The digits begin and end simultaneously.

Dichotic Digits-Standard version includes a) audio recording, and b) instructions and score forms as printable pdf files. The one-page instructions consist of administration, scoring, and interpretation information. Normative data¹ for double digits is included; however, it is only available for ages 11 and up. Available from Auditec, IncCall 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping to the contiguous US.

Dichotic Digits-Standard; Item 197; Price $94.75 USD + S&H*
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NOTE: Online ordering cannot be used for custom CDs. If you want this recording combined on a CD with other recordings, please email auditecinfo@auditec.com with your test selections along with your state or country instead of using the “Buy Now” button. You will receive a Paypal invoice for your custom order.

*INTERNATIONAL CUSTOMERS: Online ordering does not include shipping and handling charges. Please email auditecinfo@auditec.com with your test selections along with your state or country for an exact quote. If you use online ordering, you will be invoiced later for the shipping charges.

¹If age-specific normative data for ages 7 and up is needed, consider purchasing the Dichotic Digits-Musiek version instead.

⇒Did you know Auditec sells a therapy designed for persons with specific ear deficits on dichotic listening tests called the Constraint-Induced Auditory Therapy (CIAT)?

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Dichotic Digits-Musiek Version

The Dichotic Digits test is an auditory processing disorder test for ages 7 and up using verbal stimuli. It is considered a dichotic test for binaural integration sensitive to brainstem, cortical, and corpus callosal lesions.

Dichotic Digits – Musiek version is a test by Dr. Frank Musiek. It is similar to the Dichotic Digits standard version.  That is, digits from one to ten are presented dichotically.  One set is single pair; the second is double pair.  Usually, the single pair set is for practice. Dichotic Digits-Musiek version includes the digit “seven.” In contrast, the standard version does not include the digit “seven” since it is a two syllable word in contrast to the other nine digits. The Dichotic Digits-Musiek version includes age-specific normative data on double digits for ages 7 and up. The standard version includes normative data on double digits for ages 11 and up.

Is the Musiek version or standard version better? Neither version is considered better. Both versions sell popularly and are widely used. Decisions are mainly based on which version the audiologist was originally trained in or by personal preference. Due to the similarities between the standard and Musiek versions, it is usually unnecessary to purchase both versions.

Musiek Dichotic Digits includes a) audio recording, and b) instructions and score form as printable pdf files.  The two-page instructions consist of administration, scoring, and interpretation information. It includes age-specific normative data on double digits for ages 7 and up. Available from Auditec, Inc.  Call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping to the contiguous US. 

Musiek Dichotic Digits; Item 197FM; Price $102.50 USD + S&H*
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NOTE: Online ordering cannot be used for custom CDs. If you want this recording combined on a CD with other recordings, please email auditecinfo@auditec.com with your test selections along with your state or country instead of using the “Buy Now” button. You will receive a Paypal invoice for your custom order.

*INTERNATIONAL CUSTOMERS: Online ordering does not include shipping and handling charges. Please email auditecinfo@auditec.com with your test selections along with your state or country for an exact quote. If you use online ordering, you will be invoiced later for the shipping charges.

This test is also available on the following product:

  • Musiek Dichotic Digits, Musiek Pitch/Frequency Pattern, and Musiek Duration Pattern Sequence combined on one CD; Item 216FM; Price $255.00 USD + S&H

⇒Did you know Auditec sells a therapy designed for persons with specific ear deficits on dichotic listening tests called the Constraint-Induced Auditory Therapy (CIAT)?

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Masking Level Difference

The Masking Level Difference-Speech Version is an auditory processing disorder test. It is considered a binaural interaction test sensitive to low brainstem. This recording employs spondee words imbedded in speech spectrum noise bursts.  It is in two sections; section 1 is where both the noise and the spondees are in phase, section 2 is where the noise is in phase and the spondees are 180 degrees out of phase. A release from masking is expected in the latter section.

The Masking Level Difference-Speech Version includes a) audio recording, and b) instructions and score form as printable pdf files. The one-page instructions contain administration, scoring, and interpretation information. Normative data is included, but it is not age-specific. Available from Auditec, IncCall 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping within the contiguous US.

Masking Level Difference Speech Version; Item 204; Price $123.25 USD + S&H*
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NOTE: Online ordering cannot be used for custom CDs. If you want this recording combined on a CD with other recordings, please email auditecinfo@auditec.com with your test selections along with your state or country instead of using the “Buy Now” button. You will receive a Paypal invoice for your custom order.

*INTERNATIONAL CUSTOMERS: Online ordering does not include shipping and handling charges. Please email auditecinfo@auditec.com with your test selections along with your state or country for an exact quote. If you use online ordering, you will be invoiced later for the shipping charges.

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NU-6 Time Compressed 30% & 60%

The NU-6 Time Compressed Words (30% & 60%) is an auditory processing disorder test in the category of monaural low redundancy. That is, the speech stimuli have been accelerated, but without a shift in pitch. For this product, the all four lists of NU-6 Form A words have been compressed at 30% and 60%.

The NU-6 Time Compressed Words (30% & 60%) includes a) audio recording, and b) word list. This product does not include instructions. The normative data provided with the NU-6 Time Compressed was based on the W-22 Time Compressed. It is for ages 11 and up. It is assumed that purchasers of Auditec’s products are well trained in their use, purpose, and interpretation. Available from Auditec, Inc. Call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping to contiguous US locations.

NU-6 Time Compressed Words (30% & 60%); Item 129; Price $82.25 USD + S&H*
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NOTE: Online ordering cannot be used for custom CDs. If you want this recording combined on a CD with other recordings, please email auditecinfo@auditec.com with your test selections along with your state or country instead of using the “Buy Now” button. You will receive a Paypal invoice for your custom order.

*INTERNATIONAL CUSTOMERS: Online ordering does not include shipping and handling charges. Please email auditecinfo@auditec.com with your test selections along with your state or country for an exact quote. If you use online ordering, you will be invoiced later for the shipping charges.

⇒If age-specific normative data is needed for young children, consider purchasing the Time Compressed Sentence Test instead.

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PSI

The Pediatric Speech Intelligibility Test-Standard version is a test for children ages 3 to 6. It fits in two important auditory processing domains. It can be categorized as both a dichotic test and a monaural low-redundancy speech test (monaural separation closure-MSC) sensitive to low brainstem.

The importance of speech audiometry, especially where the test materials include both monosyllabic words and sentences, has been well established for adults. Experience with performance vs. intensity (PI) functions and message to competition ratio (MCR) functions with adults led to the development of an analogous test for children; the Pediatric Speech Intelligibility (PSI) test.

The PSI-Standard includes both monosyllabic words and and two sets of sentences recorded in quiet and with competition (auditory figure ground). The test employs color plates with pictures of animals (animals were use to avoid ethnic biases) which represent either the sentences or the words. It is an extremely useful tool for the investigation of peripheral and auditory processing with children down to a language age of three or slightly younger.

The test includes: a) corresponding laminated color plates, b) audio test recording, and c) manual and score forms as printable pdf files. This extensive manual includes background, administration, and interpretation information including normative data for young children. Available from Auditec, Inc. Call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping to contiguous US.

Pediatric Speech Intelligibility Standard Version; Item 183; Price $299.00 USD + S&H*
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*INTERNATIONAL CUSTOMERS: Online ordering does not include shipping and handling charges. Please email auditecinfo@auditec.com with your test selections along with your state or country for an exact quote. If you use online ordering, you will be invoiced later for the shipping charges.

⇒What is the difference between the standard and basic version? Auditec recommends purchasing the PSI – Standard Version, which is the full test. It includes the words and two sets of sentence materials which allows for re-testing without having to use the same sentences. However, Auditec also offers the PSI – Basic Version for those with budget restraints. The PSI – Basic Version includes the words and only one set of sentences and should be used on patients who will be tested once.  (The PSI – Standard Version includes the PSI – Basic Version so it is unnecessary to buy both versions.)

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Rapid Alternating Speech

The Rapid Alternating Speech is an auditory processing disorder test for both children and adults using verbal stimuli. This binaural interaction test is sensitive to the low brainstem. It consists of a series of sentences that alternate between the ears as they are spoken. The period is 600 msec. with a 50% duty cycle (i.e. 300 msec. per ear).

Rapid Alternating Speech includes a) audio recording, and b) instructions and sentence list. The one-page instructions includes information on administration, scoring, and interpretation. Normative data is included, but it is not age specific. Available from Auditec, Inc. Call 1-800-669-9065 (from US) or 314-416-1050 (outside the US) to order. FREE shipping to contiguous US.

Rapid Alternating Speech; Item 178; Price $65.00 USD + S&H*
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NOTE: Online ordering cannot be used for custom CDs. If you want this recording combined on a CD with other recordings, please email auditecinfo@auditec.com with your test selections along with your state or country instead of using the “Buy Now” button. You will receive a Paypal invoice for your custom order.

*INTERNATIONAL CUSTOMERS: Online ordering does not include shipping and handling charges. Please email auditecinfo@auditec.com with your test selections along with your state or country for an exact quote. If you use online ordering, you will be invoiced later for the shipping charges.

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