So, another abbreviation – VB, what is that? Is it still ABA? How is it different?
VB (also known as VBA, AVB, ABA/VB) stands for verbal behaviour, and it refers to B.F. Skinners analysis of verbal behaviour. It’s all I’ve ever done, so I’m a big fan. Like my previous post, this is a big topic to cover, but hopefully this will give you a brief idea of what it entails.
You don’t do ABA or VB, it’s an additional analysis, so you would use all of the concepts and principles that ABA encompasses, and in addition to that you would use the analysis of verbal behaviour.
B.F Skinner is a top man in the field of ABA, he bought operant conditioning to the table and dedicated a lot of work to defining the process. B.F Skinner took over 20 years to write his book ‘Verbal Behaviour’. If you want to have a little read about his work, click here.
Consultants that use the analysis of verbal behaviour prioritise the function of language, rather than the structure. So what does that mean? Well, the function of language would be why someone is doing/saying something, and the structure would refer to how it is presented (sentence structure).
Verbal behaviour is probably the most socially significant of all behaviour (remember the
ultimate aim of ABA – ‘to increase socially significant behaviours’). Typically, a programme which uses the analysis of verbal behaviour will prioritise manding (requesting), as teaching learners to be able to request their favourite things, and access their environment is very important.
Verbal behaviour isn’t just speaking. I would refer to speaking as vocal behaviour. Verbal behaviour can be what people say, gesture, sign, or write. For example, saying ‘drink’, writing ‘drink’, signing ‘drink’, or pointing to a drink, are all forms of verbal behaviour. All verbal behaviour must be socially mediated (someone else must be there). For this reason, getting up and getting a drink when you’re by yourself would not be regarded as verbal behaviour.
An ABA programme that uses the analysis of verbal behaviour will break down language in to operants. These are the units of language that Skinner defined in his book, Verbal Behaviour (1957). We (followers of the analysis of verbal behaviour) don’t assume that just because a learner can say ‘dog’when they see a dog, it means they can answer a question such as ‘tell me an animal that barks’.
The verbal operants are independent of each other, and each have an independent process of learning. We’ll try to make sure that when a target is being taught, such as ‘dog’, that we target it across each verbal operant, so that the learner can label a dog, find a dog, match a picture of a dog, answer questions about dogs etc, to ensure they are fluent across all areas, and understand what they are saying (for the professionals reading this, I’m aware that Skinner didn’t define visual and receptive as verbal operants).
The primary verbal operants are:
- Duplic (imitation, echoic)
- Textual (reading, dictation)
I’ll post a more in depth explanation of the verbal operants somewhere down the line.
Logistics of a programme that uses the analysis of VB – they will often involve the following effective teaching procedures,
- Identifying competing reinforcers
- Fading in demands
- Errorless teaching
- Task variation
- Fast pace of instruction
- Intersperse easy and hard instructions
Programmes are often split between natural environment teaching – NET (through play etc) and DTI (discrete trial instruction, or ‘table work’, ITT (intensive table teaching)). NET will focus on generalising skills to everyday situations; there’s no point in teaching
a learner that a picture of a car is a car, if they can’t tell you a toy car is a car during play.
DTI is intense teaching, which focuses on teaching a few new targets several times, whilst maintaining previously mastered skills. I’ll upload a video at some point. Programmes are at most 50:50 (NET:DTI), but with earlier learners, the majority of time should be spent on NET. Typically, I would recommend changing activity every 15 minutes; this helps keep it fresh, and also gives you plenty of opportunity to work on transitioning.
There’s so much to say, but nobody wants to read pages and pages of a blog, so if anyone wants any more info, please get in touch. I’ll likely expand on some of what I’ve said in later posts.
For me, ABA and VB is the way forward.