{"provider_url":"http://dwwlibrary.wested.org/","title":"Key Concepts in Spacing Learning Over Time","type":"video","html":"<iframe src=\"http://dwwlibrary.wested.org/media/key-concepts-in-spacing-learning-over-time/embed_player?iframe=True&amp;embedly=1\" webkitallowfullscreen=\"webkitallowfullscreen\" width=\"560\" allowfullscreen=\"allowfullscreen\" height=\"315\" mozallowfullscreen=\"mozallowfullscreen\" frameborder=\"0\"><\/iframe>","thumbnail_width":560,"height":315,"width":560,"version":"1.0","author_name":"Mark McDaniel, Washington University in St. Louis","provider_name":"The Doing What Works Library","thumbnail_url":"http://cdnassets.mediacore.tv/sites/9953/images/media/2455525l-tJgZjoXz.jpg","thumbnail_height":315}