I have used this text consistently for the past 4 years. Whitney does a good job at situating rather technical information in the context of general themes. Whitney tends to focus on psycholinguistics proper and presents little on how language is used (see Timothy Jay's Psychology of Language text in contrast). Unfortunately the text is getting somewhat out of date, as it has not been revised since the initial 1998 edition (whereas most texts in the field see a 3 to 4 year revision cycle). Still one of the best advanced undergraduate psycholinguistics text out there (see also David Carroll Psychology of Language).