The video-data for your inquiry project has been collected, now what? Testing your hypothesis is usually a dance, back and forth between the "ideal" and "reality-check". Listen to a research team decide how they will analyze video-data to extract just the information needed to focus on the inquiry questions. The first step is to sort video clips by activity categories, then score each clip using a recording protocol defined in terms of counting behavioral events and/or time sampling of activity states.
