id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
impactinged-25	Kochhar-Bryant, Carol A.	Symbiotic Space: Exploring the Nexus of Rigor, Problems of Practice and Implementation	2017	9	.pdf	application/pdf	9195	458	43	However, the field continued to express con- cern about the narrow set of criteria used to define “rigor,” and the establishment of a “scientific culture” that relied primarily on the “gold standard” random assignment studies of program effects as the remedy for the failures of education research to offer credible guid- ance for policy and practice (Gutiérrez & Penuel, 2014). Scientists bring new rigor to education research.	cache/impactinged-25.pdf	txt/impactinged-25.txt