Research Methods: Discrete Choice Experiment - Number of Selections

<p>Hello everyone,</p> <p>Today, I respond to another group of comments of my listeners. I try to explain how many decision options you should/could have for each decision within your discrete choice experiment. Later I noticed that I confused the words "decision", "decision option", "selection", or "object". Here, I try to clarify the terminology:</p> <p>1. Within a DCE you address a certain object (e.g. a car)</p> <p>2. You ask participants to make a certain number of decisions (e.g. select among two cars). </p> <p>3. In one such decision participants are offered several decision options (e.g. that car in red and the car in blue).</p> <p>4. If the selection is made, the selected option is coded as 1, the neglected option is coded as zero.</p> <p>5. You can have an option "None of the proposed options". If selected, this option is coded as one and all neglected options are coded as zeros.</p> <p>6. Both selected and neglected options are included in the analysis as data cases, as a person may indicate a preference towards the selected option or disfavour against the neglected options.</p> <p>Sorry for the mistakes when talking, now it should be clarified!</p> <p> </p> <p>Best</p> <p>Eugene (Yevgen)</p>