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This website has truly been a welcome gift! The Day Pass is extremely affordable & the site is so user friendly to navigate. It provides a wealth of information including, the source, validity, & references for my doctorate research project. I highly recommend this to anyone as it is truly an invaluable research tool!
Suzanne Cromlish, PhD
Saint Xavier University, Chicago


The degree to which something is perceived to perform well as it is intended to do is measured with three, seven-point Likert-type items. As used by Van Dolen, Dabholkar, and Ruyter (2007), consumers were evaluating a chat-based service for gathering information about investment funds from other customers and a financial advisor.