Please use this identifier to cite or link to this item: https://doi.org/10.3758/s13428-012-0240-y
Title: The past tense inflection project (PTIP): Speeded past tense inflections, imageability ratings, and past tense consistency measures for 2,200 verbs
Authors: Cohen-Shikora, E.R.
Balota, D.A.
Kapuria, A.
Yap, M.J. 
Keywords: Item-level variance
Megastudy
Past tense inflection
Verb consistency
Verb imageability
Verb processing
Issue Date: 2013
Source: Cohen-Shikora, E.R., Balota, D.A., Kapuria, A., Yap, M.J. (2013). The past tense inflection project (PTIP): Speeded past tense inflections, imageability ratings, and past tense consistency measures for 2,200 verbs. Behavior Research Methods 45 (1) : 151-159. ScholarBank@NUS Repository. https://doi.org/10.3758/s13428-012-0240-y
Abstract: The processes involved in past tense verb generation have been central to models of inflectional morphology. However, the empirical support for such models has often been based on studies of accuracy in past tense verb formation on a relatively small set of items. We present the first large-scale study of past tense inflection (the Past Tense Inflection Project, or PTIP) that affords response time, accuracy, and error analyses in the generation of the past tense form from the present tense form for over 2,000 verbs. In addition to standard lexical variables (such as word frequency, length, and orthographic and phonological neighborhood), we have also developed new measures of past tense neighborhood consistency and verb imageability for these stimuli, and via regression analyses we demonstrate the utility of these new measures in predicting past tense verb generation. The PTIP can be used to further evaluate existing models, to provide well controlled stimuli for new studies, and to uncover novel theoretical principles in past tense morphology. © 2012 Psychonomic Society, Inc.
Source Title: Behavior Research Methods
URI: http://scholarbank.nus.edu.sg/handle/10635/49856
ISSN: 1554351X
DOI: 10.3758/s13428-012-0240-y
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