Suppose a researcher engages in repeated measurement of a client’s anxiety during the baseline period of a single-subject design. Upon graphing the collected data, it is clear there is no obvious pattern. Explain how you would respond to this problem if you were the researcher.
What will be an ideal response?
Ans: Varies.
If there is no obvious pattern in the data, a researcher should try to determine why. It could be that the measurement procedure used is not reliable. If so, alternative measurement procedures should be used. It could be that the client is not reporting the information at the same time each day or is forgetting and completing it through retrospection. Perhaps the client’s life is changing so that produces changes in anxiety scores. Without a clear pattern during the baseline period, it will be difficult to detect whether or not there is an effect of the treatment.
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