This study is confounded and made unnecessarily complicated by using Snapchat. The experimental design should have been to instruct participants that during two

This study is confounded and made unnecessarily complicated by using Snapchat. The experimental design should have been to instruct participants that during two (of the three) sessions they will be required to take a photo of each painting using the native camera app; and photos from one of the sessions will be available for reference during the test.