(Arizona-4) Arizona Articulation and Phonology Scale Fourth Revision NEW
(Arizona-4) Arizona Articulation and Phonology Scale Fourth Revision
Provides a quick, reliable, well-standardized measure of articulation and phonology to help clinicians identify individuals in need of speech sound services
18 months to 21 years
The individual names, repeats, or reads stimulus content and the examiner notes articulatory and phonological errors
Speech Intelligibility Interpretation Values; standard scores with confidence intervals, percentile ranks, test-age equivalents, and severity ranges; Word–Sentence Articulation Critical Difference Score; Percentage of Occurrence for phonological error patterns; Percentage of Speech Improvement score for retesting
Standardized on a nationally representative sample of 3,192 children, adolescents, and young adults
Level C required.
About Qualification Levels
(Arizona-4) Arizona Articulation and Phonology Scale Fourth Revision NEW
What’s new in the Arizona-4
- Three tests in one assessment: Word Articulation, Sentence Articulation, and Phonology
- All-new normative data
- Extension of the standardized age range to 21 years, 11 months, with guidance for describing and understanding the speech of adults of all ages
- Modified scoring system for more effective identification of individuals with speech sound disorders
- Five optional tasks that inform treatment plan development
- Scoring guidance for dialectal variations
- Full-color illustrations that are more engaging for young children
- Digital stimulus images
- FREE online scoring and report generation through the WPS Online Evaluation System (platform.wpspublish.com)
The Arizona Articulation and Phonology Scale, Fourth Revision measures speech intelligibility, articulatory impairment, and phonological impairment in one quick, easy to use assessment. The fourth revision of this widely used assessment retains the strengths of its predecessors and adds features that enhance its effectiveness in identifying individuals who have speech sound disorders. New norms, refined measurement properties, and the addition of connected-speech and phonology tests help clinicians identify individuals who may benefit from speech sound services. Supplemental qualitative tasks facilitate deeper interpretation of the scores and help clinicians develop treatment plans that are targeted to the individual’s needs.
Applications and Uses
The Arizona-4 can be used by speech and language professionals in a variety of settings, including schools, clinics, hospitals, private practices, and intervention programs. Its applications include:
- Understanding and describing an individual’s level of articulatory ability and overall speech intelligibility in both single-word and connected speech
- Comparing single-word and connected-speech articulatory abilities
- Determining the extent to which phonological impairment may contribute to an individual’s articulatory deficits, and describing the specific types of phonological error patterns that are displayed
- Facilitating early identification of speech-sound development concerns and determining whether an individual may benefit from treatment services
- Identifying and prioritizing speech targets for individualized intervention through analysis of the examinee’s specific articulatory/phonological deficits and relative strengths, including the production of consonants, consonant blends, vowels, and vocalic /r/
- Monitoring improvement in an individual’s speech sound production over time
- Evaluating the degree of consistency in an individual’s production of misarticulated sounds, the impact of speech sound deficits in continuous language and everyday speech, and the need for further language assessment or intervention
What It Measures
The Arizona-4 scores help clinicians identify individuals who are in need of speech sound services and develop treatment plans for them. The primary score is the easy-to-understand Word or Sentence Articulation Total Score, which has a direct and useful interpretation. Because the Total Scores are based on research that links them to the actual rate of speech sound occurrence in American speech, they express a real sense of how often misarticulated sounds are likely to occur in the examinee’s everyday speech and what impact those misarticulations are likely to have on overall speech intelligibility. The Word–Sentence Articulation Critical Difference Score provides further information about clinically meaningful differences between articulation in single-word versus connected-speech contexts.
In addition, standard scores are provided for Word Articulation, Sentence Articulation, and Phonology. Standard scores allow comparison of the examinee’s performance to that of a typically developing peer group based on age (and gender, at the younger ages). Severity ranges, confidence intervals, percentile ranks, and test-age equivalent scores further aid clinical interpretation. The Arizona-4 scores include descriptive language that is easily understood by parents and other nonprofessionals.
Expanded guidelines for interpretation cover topics such as extreme scores, item-level analysis, percentage of occurrence of phonological error patterns, and use of the Arizona-4 to measure change over time. Additional qualitative information is available through a variety of supplemental, nonstandardized tasks that help you plan effective treatment for the individual.
The Arizona-4 offers the following scores:
- Total Scores and associated Speech Intelligibility Interpretation Values
- Standard Scores and associated Severity Ranges for level of articulatory and phonological impairment
- Word–Sentence Articulation Critical Difference Score
- Percentage of Occurrence for phonological error patterns
- Percentage of Speech Improvement score for retesting
How It Works
The Word Articulation and Sentence Articulation tests of the Arizona-4 are administered to the examinee and may be used singly or in combination as needed. The Phonology test is coded by the clinician based on the examinee’s speech productions during Word Articulation.
Word Articulation may be administered using the Test Easel or the Digital Stimulus Images With Administration Guide. You present the stimulus content to the examinee and the examinee names the depicted word or repeats it after you; older examinees may read the words. You record the examinee’s production of the target sounds in the Word and Sentence Articulation Record Form, and you may choose to code these productions for 11 phonology error patterns on the Phonology Coding Form.
The target sounds in Word Articulation can be tested at the sentence level by administering Sentence Articulation using the Test Easel or the Digital Stimulus Images With Administration Guide. In Sentence Articulation, the single words from Word Articulation are embedded in brief, simple sentences that are spoken by the examinee (the examinee can read the sentences or repeat after you; sentences are written at a first-grade reading level). Direct comparisons can be drawn between the examinee’s productions of the Arizona-4 target sounds at the word and sentence levels.
After you have administered the relevant articulation tests and coded for phonology as needed, you can score manually or use the WPS Online Evaluation System for free online scoring and report generation.
FREE Online Scoring and Reporting
Upon purchase of an Arizona-4 Kit or Forms, you gain access to digital scoring through the WPS Online Evaluation System at no additional charge! This gives you the option to score online and automatically generate the Score Report including Item Discrepancy Analysis. Time-saving and HIPAA compliant, WPS’s online testing platform lets you securely and conveniently keep a record of your administrations and share helpful information with parents, teachers, and others involved in treatment.
Describes the administration, scoring, interpretation, development, standardization, and psychometric properties of the Arizona-4
Self-standing stimulus book that contains content needed to administer the Arizona-4, including instructions, examples, pictures, items, prompts, scoring criteria, information about the skills measured by each item, and some Supplemental Assessment Tasks. Test Easel sections are marked by tabs to help you quickly locate them during test administration.
Digital Stimulus Images With Administration Guide
Electronic version of the Test Easel. Includes digital stimulus images and a digital Administration Guide that can be used in online or offline format. A print Administration Guide is also included for convenience.
Word Articulation and Sentence Articulation Record Form
An 8-page booklet used for administering and scoring Word Articulation and Sentence Articulation. It also facilitates administration of Supplemental Assessment Tasks. The Record Form is available only in print format and must be used during test administration. After administration, scoring can be done manually or automatically online by the WPS Online Evaluation System at platform.wpspublish.com.
Phonology Coding Form
A 4-page booklet used to code and score Phonology following the administration of Word Articulation. The Coding Form is available only in print format and must be used to code phonological error patterns. After coding, scoring can be done manually or automatically online by the WPS Online Evaluation System at platform.wpspublish.com.
The Arizona-4 was standardized on a nationally representative sample of 3,192 children, adolescents, and young adults, aged 1 year, 6 months through 21 years, 11 months. This sample was stratified to match U.S. Census data with respect to gender, race/ethnicity, parents’ educational level, and geographic region. A clinical validation sample was also collected, consisting of 50 individuals who had a diagnosis of a speech sound disorder (articulation and/or phonological disorder) and were receiving treatment services.
The Arizona-4 has strong internal consistency, test–retest reliability, and interrater reliability, supporting the stability of Arizona-4 results within tests, over time, and across examiners.
Several studies provide validity evidence supporting the Arizona-4. The Arizona-4 scores show the expected progression of development for speech sound mastery as well as the expected mastery ages for specific target sounds and phonological error patterns, providing evidence that the Arizona-4 adequately captures speech sound development. Validity evidence also includes correlations with other established measures of articulation and phonology. A clinical study supports the ability of the Arizona-4 to distinguish those who have clinically diagnosed speech sound disorders from those who do not. These results indicate excellent sensitivity and specificity, as well as positive and negative predictive value, for the Arizona-4 tests.
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