(Wechsler Individual Achievement Test ®- Third UK Edition)

Ages 4:0- 50:11 years


The WIAT-IIIUKassists you in identifying the academic strengths and weaknesses of a student; informing decisions regarding eligibility for educational services, educational placement, or diagnosis of a specific learning difficulty; and designing instructional objectives and planning interventions.


Basic Reading

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Word Reading

The examinee reads a set of single words aloud. This subtest measures the speed and accuracy of single word reading.

Pseudoword Decoding

The examinee reads aloud a set of single non-words. This subtest measures the speed and accuracy of decoding skills.


Maths Problem Solving

The examinee listens as the examiner reads each problem, looks at the corresponding visual stimuli, and provides oral and/or points to responses. This subtest measures math problem-solving skills under untimed conditions.


The examinee is asked to complete Numeracy by writing the answers in the provided response booklet. This subtest measures written mathematics calculation skills under untimed conditions.

Maths Fluency

The examinee completes as many problems as he/she can within a 60-second time limit. This subtest measures written mathematics calculation fluency (speed and accuracy).

Oral Language

Listening Comprehension

In the first component of listening comprehension, the examinee looks at a set of pictures, listens to a word spoken aloud by the examiner, and then points (or states the letter that corresponds to) the picture that best illustrates the meaning of the target word. In the second component, the examinee listens to an audio recording of one or more sentences of a narrative or expository information, listens to the question(s) read aloud by the examiner, and then orally answers the question(s). This subtest measures listening comprehension at the level of the word, sentence, and discourse.

Oral Expression

The examinee is evaluated on his/her skills in association with expressive vocabulary, oral word fluency, and sentence repetition. This subtest measures the skills and competencies that are important for effective oral expression and that underlie written language skills.

Reading Comprehension & Fluency

Reading Comprehension

The examinee reads each passage aloud or silently, listens to each question asked aloud by the examiner, and orally answers each question with the passage available for reference. This subtest measures literal and inferential reading comprehension skills using a variety of passage and question types.

Oral Reading Fluency

The examinee reads a set of passages orally. This subtest measures oral reading fluency of expository and narrative passages.

Total Achievement

Early Reading Skills

The examinee is presented auditory, visual, or combined auditory-visual stimuli and is required to respond either by pointing or orally. This subtest measures several skills deemed important for developing reading skills for students from 4 to 8 years of age.

Written Expression

Alphabet Writing Fluency

The examinee writes alphabet letters within a 30-second time limit. This subtest measures the examinee's ability to write letters and can be administered to students from 5 to 7 years of age.


The examinee listens to a target sound or word, listen to the sound or word within the context of a sentence, and then writes the sound or word. This subtest measures written spelling of single sounds and words from dictation.

Essay Composition Subtest

Students ages 8 to 25 years of age are given 10 minutes to write an essay on a specific subject. This subtest measures spontaneous, compositional skills, including theme development, text organization, grammar, and mechanics.

Sentence Composition Subtest

Sentence Composition includes two subtasks: Sentence Combining requires students to combine two or more sentences into one well-written sentence that preserves the meaning of the original sentences, and Sentence Building requires students to write sentences that use target words with appropriate context. This subtest measures sentence formulation skills and written syntactic maturity and ability in students, ages 6 to 25 years.


You can record errors directly on your tablet.

Audio stimuli will play through the iPad, eliminating the need for the cassette.

Quickly scored with easy access to word list

  1/5   Instructions are presented the same way as in paper/pencils assessments


Quickly scored with easy access to word list