Saccade launch site as a predictor of fixation durations in reading: Comments on Hand, Miellet, O'Donnell, and Sereno (2010)

Authors: Slattery, T.J., Staub, A. and Rayner, K.

Journal: Journal of Experimental Psychology: Human Perception and Performance

Volume: 38

Issue: 1

Pages: 251-261

ISSN: 0096-1523

DOI: 10.1037/a0025980

Abstract:

An important question in research on eye movements in reading is whether word frequency and word predictability have additive or interactive effects on fixation durations. A fair number of studies have reported only additive effects of the frequency and predictability of a target word on reading times on that word, failing to show significant interactions. Recently, however, Hand, Miellet, O'Donnell, and Sereno (2010) reported interactive effects in a study that included the distance of the prior fixation from the target word (launch site). They reported that when the saccade into the target word was launched from very near to the word (within 3 characters), the predictability effect was larger for low frequency words, but when the saccade was launched from a medium distance (4-6 characters from the word) the predictability effect was larger for high frequency words. Hand et al. argued for the importance of including launch site in analyses of target word fixation durations. Here we describe several problems with Hand et al.'s use of analyses of variance in which launch site is divided into distinct ordinal levels. We describe a more appropriate way to analyze such data-linear mixed-effect models-and we use this method to show that launch site does not modulate the interaction between frequency and predictability in two other data sets. © 2011 American Psychological Association.

http://eprints.bournemouth.ac.uk/22643/

Source: Scopus

Saccade launch site as a predictor of fixation durations in reading: comments on Hand, Miellet, O'Donnell, and Sereno (2010).

Authors: Slattery, T.J., Staub, A. and Rayner, K.

Journal: J Exp Psychol Hum Percept Perform

Volume: 38

Issue: 1

Pages: 251-261

eISSN: 1939-1277

DOI: 10.1037/a0025980

Abstract:

An important question in research on eye movements in reading is whether word frequency and word predictability have additive or interactive effects on fixation durations. A fair number of studies have reported only additive effects of the frequency and predictability of a target word on reading times on that word, failing to show significant interactions. Recently, however, Hand, Miellet, O'Donnell, and Sereno (see record 2010-19099-001) reported interactive effects in a study that included the distance of the prior fixation from the target word (launch site). They reported that when the saccade into the target word was launched from very near to the word (within 3 characters), the predictability effect was larger for low frequency words, but when the saccade was launched from a medium distance (4-6 characters from the word) the predictability effect was larger for high frequency words. Hand et al. argued for the importance of including launch site in analyses of target word fixation durations. Here we describe several problems with Hand et al.'s use of analyses of variance in which launch site is divided into distinct ordinal levels. We describe a more appropriate way to analyze such data-linear mixed-effect models-and we use this method to show that launch site does not modulate the interaction between frequency and predictability in two other data sets.

http://eprints.bournemouth.ac.uk/22643/

Source: PubMed

Saccade Launch Site as a Predictor of Fixation Durations in Reading: Comments on Hand, Miellet, O'Donnell, and Sereno (2010)

Authors: Slattery, T.J., Staub, A. and Rayner, K.

Journal: JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE

Volume: 38

Issue: 1

Pages: 251-261

eISSN: 1939-1277

ISSN: 0096-1523

DOI: 10.1037/a0025980

http://eprints.bournemouth.ac.uk/22643/

Source: Web of Science (Lite)

Saccade launch site as a predictor of fixation durations in reading: Comments on Hand, Miellet, O’Donnell, and Sereno (2010).

Authors: Slattery, T.J., Staub, A. and Rayner, K.

Publisher: American Psychological Association

http://eprints.bournemouth.ac.uk/22643/

Source: Manual

Saccade launch site as a predictor of fixation durations in reading: comments on Hand, Miellet, O'Donnell, and Sereno (2010).

Authors: Slattery, T.J., Staub, A. and Rayner, K.

Journal: Journal of experimental psychology. Human perception and performance

Volume: 38

Issue: 1

Pages: 251-261

eISSN: 1939-1277

ISSN: 0096-1523

DOI: 10.1037/a0025980

Abstract:

An important question in research on eye movements in reading is whether word frequency and word predictability have additive or interactive effects on fixation durations. A fair number of studies have reported only additive effects of the frequency and predictability of a target word on reading times on that word, failing to show significant interactions. Recently, however, Hand, Miellet, O'Donnell, and Sereno (see record 2010-19099-001) reported interactive effects in a study that included the distance of the prior fixation from the target word (launch site). They reported that when the saccade into the target word was launched from very near to the word (within 3 characters), the predictability effect was larger for low frequency words, but when the saccade was launched from a medium distance (4-6 characters from the word) the predictability effect was larger for high frequency words. Hand et al. argued for the importance of including launch site in analyses of target word fixation durations. Here we describe several problems with Hand et al.'s use of analyses of variance in which launch site is divided into distinct ordinal levels. We describe a more appropriate way to analyze such data-linear mixed-effect models-and we use this method to show that launch site does not modulate the interaction between frequency and predictability in two other data sets.

http://eprints.bournemouth.ac.uk/22643/

Source: Europe PubMed Central

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