Woodcock–Johnson Test

Developed in 1977 by Richard Woodcock and Mary E. Bonner Johnson, the Woodcock-Johnson Tests of Cognitive Abilities is one of the most popular IQ tests available today. Most recently updated in 2014 (referred to as the WJ IV), the Woodcock-Johnson test is an intelligence test that can be used on participants from the age of 2 all the way to people in their 90s. The test is similar in nature, and can often be used in place of, the Wechsler Intelligence Scale for Children (WISC) for educational diagnosis of children. The test is used primarily to measure ability for academic achievement, oral language, scholastic aptitude, and overall cognitive skills.

What are the Woodcock–Johnson Tests of Cognitive Abilities?

The  Woodcock-Johnson test is a multiple choice intelligence test that can be administered by schools, psychologists, and testing centers. The test includes what are known as the Standard Battery and Extended Battery of tests. Previously, the Woodcock-Johnson III test ( also known as the WJ-III test) was used to develop intelligence index scores for the General Intellectual Ability (GIA) and Brief Intellectual Ability (BIA). With the introduction of the WJ IV test, there are now three test batteries, which can be used independently or in combination. Those batteries are:

  • The WJ IV Tests of Cognitive Abilities. This test is used to identify learning problems and individual strengths and weaknesses. This is similar to other intelligence tests such as the Stanford-Binet and Wechsler Intelligence tests.
  • The WJ IV Tests of Achievement. This test battery is used to measure math and reading proficiency and compare academic achievement in relation to the subject’s academic knowledge.
  • The WJ IV Tests of Oral Language. This test battery is used to assess language proficiency.

The WJ IV Tests of Cognitive Abilities

The Cognitive Abilities portion of the Woodcock-Johnson test consists of the following tests.

Standard Battery

  • Oral Vocabulary
  • Number Series
  • Verbal Attention
  • Letter-Pattern Matching
  • Phonological Processing
  • Story Recall Test
  • Visualization
  • General Information
  • Concept Formation :

Extended Battery

  • Numbers Reverse
  • Number-Pattern Matching
  • Nonword Repetition
  • Visual-Auditory Learning
  • Picture Recognition
  • Analysis-Synthesis
  • Object-Number Sequencing
  • Pair Cancellation
  • Memory for Words

From these tests the following intelligence clusters are scored.

  • Short-Term Working Memory-Extended
  • Brief Intellectual Ability
  • Gf-Gc Composite
  • Cognitive Processing Speed (Gs)
  • Number Facility (N)
  • Perceptual Speed (P)
  • General Intellectual Ability
  • Auditory Processing (Ga)
  • Comprehension-Knowledge (Gc)
  • Auditory Memory Span (MS)
  • Comprehension-Knowledge-Extended
  • Long-Term Retrieval (Glr)
  • Fluid Reasoning (Gf)
  • Visual Processing (Gv)
  • Fluid Reasoning-Extended
  • Cognitive Efficiency
  • Short-Term Working Memory (Gwm)
  • Cognitive Efficiency-Extended Clusters

The WJ IV Tests of Achievement

The Achievement portion of the Woodcock-Johnson test consists of the following tests.

Standard Battery

  • Letter-Word Identification
  • Applied Problems
  • Spelling
  • Passage Comprehension
  • Calculation
  • Writing Samples
  • Word Attack
  • Oral Reading
  • Sentence Reading Fluency
  • Math Facts Fluency
  • Writing Fluency

Extended Battery

  • Reading Recall
  • Number Matrices
  • Editing
  • Word Reading Fluency
  • Spelling of Sounds
  • Reading Vocabulary
  • Science
  • Social Studies
  • Humanities

From these tests the following intelligence clusters are scored.

  • Brief Achievement
  • Broad Achievement
  • Reading
  • Broad Mathematics
  • Written Language
  • Math Calculation Skills
  • Reading Fluency
  • Broad Written Language
  • Reading Rate
  • Basic Writing Skills
  • Mathematics
  • Written Expression
  • Math Problem Solving
  • Academic Skills
  • Reading Comprehension-Extended
  • Academic Applications
  • Reading Comprehension
  • Academic Fluency
  • Broad Reading
  • Academic Knowledge
  • Basic Reading Skills
  • Phoneme-Grapheme Knowledge

The WJ IV Tests of Oral Language

The Achievement portion of the Woodcock-Johnson test consists of the following tests.

Standard Battery

  • Picture Vocabulary
  • Oral Comprehension
  • Segmentation
  • Rapid Picture Naming
  • Sentence Repetition
  • Understanding Directions
  • Sound Blending
  • Retrieval Fluency
  • Sound Awareness
  • Vocabulario sobre dibujos
  • Comprensión oral
  • Comprensión de indicaciones

From these tests the following intelligence clusters are scored.

  • Listening Comprehension (Spanish)
  • Broad Oral Language (Spanish)
  • Oral Language (Spanish)
  • Speed of Lexical Access
  • Phonetic Coding
  • Vocabulary
  • Oral Language
  • Broad Oral Language
  • Oral Expression
  • Listening Comprehension