id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-15875	Wrubel, Laura; Schmidt, Kari	Usability Testing of a Metasearch Interface: A Case Study	2007	20	.pdf	application/pdf	8186	315	53	Because it aggregates search results from multiple sources, metasearch can take longer to present results than a single database or an Internet search en- gine. A task was considered unsuccessfully completed when participants did not find search results useful, felt they could not answer a question using metasearch, or ran into technical difficulties from which they could not recover.	cache/crl-15875.pdf	txt/crl-15875.txt