WMLS

SPED 5320 Section Z01

Dr. Michele Marjason

Naoma Karageorge

Woodcock-Muñoz Language Survey, III

serves multiple purposes

Six language proficiency levels, including two levels of language proficiency and four levels of language development and emerging proficiency

The Woodcock-Muñoz Language Survey is designed to to assess academic language skills in listening, speaking, reading, writing, and comprehension, providing a comprehensive overview of proficiency in these areas (Doll & Plata-Potter, 2021).

1. Purpose of the Test

The Woodcock-Muñoz Language Survey III (WMLS-III) is a reliable and valid tool for assessing academic language proficiency in listening, speaking, reading, writing, and comprehension

Validity refers to the degree to which a test measures what it claims to measure. Validity is necessary for a test to be useful for its intended purpose.

• validity studies reported moderate correlation coefficients between the English tests and other recognized language scales

Reliability refers to the extent to which a test measures consistently and without error. A test is considered reliable if it is consistent within itself and across time.

• The WMLS III English test has high internal consistency and test-retest reliability
• Internal consistency appears adequate for all subtest and cluster scores.

Validity

Reliability

2. Technical Adequacy

1,055 native English-speaking and 1,041 native Spanish-speaking examinees from all regions of the United States

The calibration study mainly included dialects from Mexico Difficulty level of the test may depend on the examinee's country of origin Limited information is available about the technical properties of the WMLS III Spanish form

• Possible bias

• Developed using a two-phase procedure

• Phase 2:

Woodcock-Johnson IV Cognitive Abilities Assessment Woodcock-Johnson IV Tests of Achievement & Woodcock-Johnson Tests of Oral Language

• Phase 1:

3. Bias Status

Determine language dominance for bilingual students

Monitor growth in language proficiency

Determine eligibility for language services

Determine a student's English or Spanish language proficiency