Describe any development work on the data collection instrument. The use of the attribute "type" as a means of specifying a controlled vocabulary concept is DEPRECATED. To specify the use of a Controlled Vocabulary or standard concept use the internal element "concept". If multiple concepts are needed the parent element should be replicated. Internal text related to each concept should be allocated to accompany the relevant concept.
<instrumentDevelopment>
<concept vocab="123surveys" vocabURI="http://123surveys.com/internal/developmentProtocal" vocabInstanceURI="http://123surveys.com/internal/developmentProtocal#Pretest.SplitPanel">Pretest.SplitPanel</concept>
The questionnaire was pre-tested with split-panel tests, as well as an analysis of non-response rates for individual items, and response distributions.
</instrumentDevelopment>