I would like to create a importance-satisfaction matrix. This entails asking respondents to rate both the importance and performance on a list of items. This works well on the computer with a custom table, and all items for both performance and importance can be rated on one screen. But on the phone it asks a separate question and goes to a separate page for each item. So you have to rate each item for importance on separate pages then each item for satisfaction for separate pages. Any advice on how to make this question more efficient?