Archive for category assessment

We Can’t WAIT!

There’s been a lot of discussion concerning COVID19 and schooling from home. In the special education domain, at least in speech-language pathology, we seem to be all over the place. Not that it’s easy it’s not. But, I hear a lot of comments and reports that school districts are suspending special education testing:

  • till schools open again
  • because standardized tests aren’t standardized for on-line administration
  • because we’re not comfortable
  • because we think that it can’t be valid

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Why Opinion and Personal Observation isn’t as good as Systematic Research

Families of bilingual children with developmental language disorder (DLD) are often told to use only one language. School district personnel may insist that these children receive instruction in only one language even if there are bilingual programs available. Even bilingual personnel who work with children (teachers and SLPs for example) may say that children with DLD can become more confused if in a bilingual environment. This is simply not true. I have participated in many studies that demonstrate that bilingual children are not more likely to show higher risk for DLD than monolinguals; we know that bilingual children with DLD show comparable performance to monolingual children with DLD; we know that bilingual children with DLD show cognate advantages similar to typical bilinguals; we know that intervention in one language can carry over to the other language. This work is all supported by the data-based research (linked) and is consistent with work that other researchers are doing. Read the rest of this entry »

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Does conceptual scoring increase classification accuracy for vocabulary tests?

We’ve (as a field) have known for about 20 years that single word vocabulary tests whether they are receptive or expressive tests are poor indicators of developmental language disorders (DLD). At the same time, these tests are very often used by SLPs as part of a diagnostic. They are easy to give, quick, and highly reliable. It’s hard to make an error in  administration or scoring on these tests. But, reliability is not enough (neither are the other reasons). Even if it only takes 5 minutes and the score is a perfect representation of what the child can do it doesn’t mean that a low score indicates impairment or that a high score indicates typical development. As far as domains of language go– children with DLD do pretty well with vocabulary at the single word level. It’s semantics (connections among words) that they have difficulty with. Read the rest of this entry »

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Can we improve home language surveys?

I’m working on a paper that focuses on language dominance, proficiency and exposure. I’ve written about these definitions before. Here, I want to think about how it is we capture this information.

There are a number of really nice surveys and questionnaires that have been developed that help to document this information. These include L1 and L2 age of acquisition; educational history in each language, rating of proficiency in each language. Sometimes this is broken out into speaking, listening, reading and writing. Some questionnaires ask about what language is more proficient, and may ask for what purpose(s) each language is used. This information is designed to get at the question of how language is used and how proficient an individual might be across situations.  Read the rest of this entry »

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Does bilingualism hurt children with DLD?

You know I’m gonna say no. But, it’s important to establish what does happen and to do so with data. After several studies we have enough data to look at this question more carefully with a set of children with developmental language disorder (aka: language impairment; specific language impairment; or primary language impairment) who had varying levels of exposure to Spanish and English. Read the rest of this entry »

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Do bilinguals have to be tested in both languages? Part 2

The answers are yes, no, maybe, it depends. Last time we talked about “yes.” This time let’s talk about:

  • no

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Do bilinguals have to be tested in both languages?

Yes, no, maybe, it depends.  Read the rest of this entry »

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Doing the right thing

I belong to a Facebook group SLPs for Evidence Based Practice. There is frequent discussion of what works and what doesn’t in intervention and in assessment. My work has often focused on assessment and assessment practices. And, I have to say that it is frustrating to find that something does (or doesn’t) work but that clinical practices take so long to change. So, I wonder what is our obligation in the field to be aware of the evidence? And what is our obligation to make changes in our practices? Read the rest of this entry »

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Reporting Bilingual Results

A question that often comes up about our research is how to apply it clinically. Much of our work is motivated by clinical questions and ultimately we aim to have some clinical solutions. It’s hard sometimes to move directly from research to application. Sometimes the clinical questions we pose have no or very little research available to move to the next step. So, we have to step back and do the more basic descriptive work to understand the nature of bilingualism and of bilingual impairment before we can then more forward again to answer questions about assessment and treatment. Now that we’ve done more work that has implications for assessment and have the BESA available for clinicians we can start to think about more direct application.

I wrote a year ago that we can get the most accurate indicator of language impairment on the BESA when we combine the best language across domains. So, we might combine Spanish morphosyntax with English semantics for a language composite. But, how do you write up results to incorporate into a report?

In a fairly recent paper, we provide some illustrations of how to use test information to make clinical decisions using the BESA. We go through the parent and teacher interview we use to determine possible concern about speech and language ability in each language and how we determine language use and exposure. Finally, we demonstrate how we combine and compare Spanish and English performance across each domain to determine language impairment. I hope these help in writing up your clinical reports.

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Bilingual Research Needs

I’m at the airport in Washington DC after participating in a workshop at tha NIH on dual language learners. We talked about the state of the art. What’s cool is that there has been so much progress. We know that bilingualism isn’t bad for you and that in fact it could be good for you. We have better ideas about how to diagnose bilinguals with language impairment. At least in some languages. We know about what works for Spanish and English. We have emerging data for Mandarin-English and Vietnamese-English as well as other language pairs. We have an emerging picture about bilingual development in two languages. 

But, there’s still a lot we don’t know. We don’t fully understand how changes in the linguistic environment affect child performance on language measures. We still don’t have a God handle in intervention for bilinguals with langquge impairment.  Do we treat in one language or both? Do we use translanguaging approaches?  

I don’t think we fully understand how bilingualism affects the brain. Nor do we know how the environment shapes the brains of children with language impairment.

We heard about reading disorder and mechanisms associated with dyslexia. Children can and do learn to read in two languages but we don’t really understand how those languages interact and how languages that have different writing systems interact in the bilingual brain. 

Even though we’ve made progress in identification of impairment we don’t do such a great job across languages and at all ages. 

So we know a lot we have a ways to go 

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