Tuesday, October 21, 2008

What are some of the often overlooked independent variables? (sometimes referred to as Setting Events)

Medications
Medical or physical problems
Sleep cycles
Eating routines and diet
Daily schedule
Staffing patterns
Density of people (too many people present)
Stimulation (is the environment overly stimulating, this can change over time where initially it is not overly stimulating but becomes so as the person reaches and goes beyond capacity).

What are intervening variables ie motivation, fatigue, hunger, intelligence, expectations?


Additional resources and links:
Dependent and independent variables
http://msxml.excite.com/excite/ws/results/Web/independent%20variables/1/417/TopNavigation/Relevance/iq=true/zoom=off/_iceUrlFlag=7?_IceUrl=true

Intervening variable
http://en.wikipedia.org/wiki/Intervening_variable

Variable
http://en.wikipedia.org/wiki/Variable

Supplemental Material:
Setting Events
Setting Events Checklist

Saturday, October 18, 2008

Manipulating (and understanding) Variables: Getting an idea of what might and what might not work.

Sometimes you have to poke around a little, turn over a few rocks. You have to test some hypothesis. Sometimes this may be a part of the functional behavioral analysis; sometimes it may be part of the ongoing assessment you are (or at least should always be) conducting. Taking everything at face value is usually not good enough. Is a hug always reinforcing? Just with certain people? Are there times when it is more reinforcing than another? Is it possible to reach the point of satiation?
Sometimes this is called in-situational hypothesis testing. Sometimes simply: hypothesis testing by manipulating the independent variables.
I remember many years ago as a mental health counselor working with a family of children who had been severely and ritualistically sexually abused. One of the older children who had become very sexualized was also working one on one with a tall gorgeous blond therapist in her late 20’s. The therapist once commented to me that every time the boy would get out of control, have bursts or anger, or become non-compliant she would hold him tightly (he was about 10) and he would almost immediately calm down. Upon hearing this I immediately thought of many variables including some possibly unintended consequences and reinforcing that might be going on. The important point though is that I did not know for sure. This was an opportunity to test a lot of different variables before adhering to a specific plan of intervention for any extended period of time.
Testing variables can be quite tricky. If you manipulate more than one variable at a time, how do you know which variable is influencing any change that may occur? Is it possible that the change is caused by a compounding of the two variables?
In the case mentioned above, there are a number of ways we could test some of the variables. First, collect detailed data about when and where behaviors occur and with whom. If there is an increase in certain behaviors in the presence of the therapist, then there is a possibility that the holding by the therapist is reinforcing and actually having the effect of increasing the behavior. Note, while this is a possibility, we still don’t know for sure. What are some of the other variables that could influence this behavior at this time? Sometimes children will display aggressive behaviors in the presence of the therapist or another outside authority figure because it’s safe. They understand at some level that while they may have a consequence, they are not going to get knocked around…at least at that time. It becomes a safe place to blow up. Sometimes victims of domestic violence display violent behavior against their perpetrator when the police show up. This can take place because they have so much emotion and anger built up that when the police show up, they realize there is safety and they explode. They may then get hauled away and charged, but in the immediate situation that too may be the lesser of two evils. The bottom line here is that you still don’t know the cause of the behavior.
Even after you develop a good working hypothesis; it is always a “working hypothesis.” This is why you continually take data and periodically adjust your plan as needed. So what else can we do to further assess the behavior (manipulate the variables)? Here are a few possibilities:
1. Teach the child that it’s ok to ask for a hug and that he can get one when he appropriately requests one. (Stop using holding as a consequence.)
2. Change to a male therapist.
3. Keep the same therapist but use a different consequence.
4. Teach and help the child to implement more appropriate ways to release frustrations and/or get his needs and appropriate wants met.

These are just a few possibilities.

Before you write a plan, it is critical to review existing data, gather data and try out your hypotheses to the extent possible. Once the plan is written, take the time to manipulate one variable at a time and find out what happens if???? Allow an appropriate amount of time to find out if a manipulated variable is actually helping or making the situation worse.

Additional resources:

Functional Assessment and Program Development for Problem Behavior: A Practical Handbook O'Neill, Horner et al &
Functional Behavioral Assessment, Diagnosis, and Treatment: A Complete System for Education and Mental Health Settings Cipani & Schock

Click here for additonal information on writing measurable behavioral objectives