Using nonverbal assessments can be an essential tool in the practice of school psychology, especially when working with diverse student populations. Let’s discuss three main takeaways from a recent discussion on nonverbal tests, focusing on their application, best practices, and how they can be used effectively to support students with unique needs.
Understanding Different Types of Nonverbal Tests
When selecting nonverbal assessments, it’s important to recognize the two primary categories they fall into:
- Completely Nonverbal Tests: These assessments, like the Universal Nonverbal Intelligence Test (UNIT) or the Comprehensive Test of Nonverbal Intelligence (CTONI), involve no verbal instructions or responses. All directions are conveyed through gestures, and students respond using nonverbal means, such as pointing or manipulating objects. These tests are ideal for evaluating students without relying on verbal communication, making them suitable for those with language impairments or those who are nonverbal.
Nonverbal IQ Scores from Standard Assessments: Tests like the Wechsler Intelligence Scale for Children (WISC) or the Kaufman Assessment Battery for Children (KABC) provide nonverbal IQ scores but still incorporate some degree of language in their instructions or responses. These tests might be appropriate when language comprehension is not a significant barrier but should be used with caution in cases where language difficulties might affect the outcomes.
Best Practices for Using Nonverbal Assessments with English Learners and Students with Language Difficulties
Nonverbal assessments can be particularly useful for English learners and students with limited language proficiency. However, before deciding to use a nonverbal test, it’s important to assess the student’s language proficiency using tools like the Woodcock-Johnson Oral Language or the Bilingual Verbal Ability Test (BVAT), especially when the student speaks a language other than English or Spanish.
For students with significant language impairments or those who are entirely nonverbal, nonverbal assessments provide a way to evaluate cognitive abilities without the confounding influence of language. It’s also essential to consider the student’s unique language background and cultural context to determine whether a nonverbal test is the most appropriate choice.
Limitations of Nonverbal Tests and the Importance of a Comprehensive Approach
When a student’s behavior becomes disruptive, setting clear, simple, and enforceable limits can help guide them back to a state of calm. Providing structured choices and explaining the consequences of their actions can empower the student to make better decisions while also reducing their urge to act out.
Quick Tip: State the positive choice first, like “When you finish your math task, then we can go on the iPad.” This approach helps the student focus on what they can achieve, reinforcing a sense of control and cooperation.
While nonverbal tests are valuable tools, they have limitations and should not be used in isolation to make significant educational decisions. Tests like the CTONI or UNIT focus on specific cognitive areas, such as fluid reasoning and visual processing, and do not provide a full picture of a student’s cognitive profile. When using these tests, it is essential to supplement them with other assessments that evaluate a broader range of cognitive skills, including phonological processing and verbal memory.
For example, if you are evaluating a student for a specific learning disability (SLD) and only use a nonverbal test, you might miss important information about the student’s cognitive abilities that are critical for making an accurate diagnosis. Always consider the purpose of the assessment, the areas of eligibility being evaluated, and whether a more comprehensive evaluation is warranted.
