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Purpose: Previous studies examining the inter-relations between serial and discrete naming with reading have found that the ability to efficiently process multiple items presented in a sequence (indexed by serial naming) is a unique predictor of word- and text-reading fluency. However, conclusions have been tempered by the concurrent nature of the available data and the uniformly low demands of the materials (words and texts). Here we go beyond previous studies by using more varied materials to examine the relations of serial and discrete naming with the discrete reading of words and the serial reading of word lists and connected text over time. Method: Two hundred and eight English-speaking Canadian children (51% female, Mage = 7.2 years) were followed from Grade 2 to Grade 5 and were assessed on serial and discrete digit naming and serial and discrete word reading at both measurement points. Results: Strong associations between discrete naming and discrete reading already from Grade 2 indicated that short and high-frequency words were processed in parallel early in development. By Grade 5, when word recognition was presumably automatized, serial naming accounted for unique variance in serial reading of word lists and connected texts after controlling for discrete word reading. More importantly, Latent Change Score modeling indicated that serial naming was the main predictor of growth in serial reading from Grade 2 to Grade 5. Conclusion: These findings suggest that, beyond individual word recognition, reading fluency development also requires efficient processing of multiple items presented in serial format (termed "cascaded processing"). [ABSTRACT FROM AUTHOR]

The serial advantage, defined as the gain in naming rate in the serial over the discrete task of the same content, was examined between grades and types of content in English and Greek. 720 English- and Greek-speaking children from Grades 1, 3, and 5 were tested in rapid naming and reading tasks of different content, including digits, objects, dice, number words, and words. Each type of content was presented in two presentation formats: multiple stimulus displays (i.e., serial naming) and isolated stimulus displays (i.e., discrete naming). Serial tasks yielded faster naming rates--irrespective of task content--in both languages. However, content-specific characteristics influenced the trajectory of the serial advantage between grades. Improvement in the serial advantage between grades was found to be greatest for word reading, which started off similar to object naming in Grade 1, but ended up similar to digit or dice naming by Grade 5. In addition, growth in serial advantage was found to be associated with growth in discrete naming rate only in grade level analysis. For individuals, greater serial advantage was found to rely on processing skills specific to serial naming rather than on differences in the rate of naming isolated items. Our findings suggest that group level findings may not generalize to individuals, and although practice and familiarity with the content on the naming/reading task may impact the development of serial advantage, isolated item identification processes contribute little to individual differences in the gain in serial naming rates.

This study aimed to examine (a) the developing interrelations between the efficiency of reading individually presented words (i.e., isolated word recognition speed) and the efficiency of reading multiword sequences (i.e., word list and text reading fluency); (b) whether serial digit naming, indexing the ability to process multi-item sequences, accounts for variance in word list and text reading fluency beyond isolated word recognition speed; and (c) if these patterns of relations/effects differ between two alphabetic languages varying in orthographic consistency (English and Greek). In total, 710 Greek- and English-speaking children from Grades 1, 3, and 5 completed a serial digit naming task and a set of reading tasks, including unconnected words presented individually, unconnected words presented in lists, and sentences forming a meaningful passage. Our results showed that the relation between isolated word recognition speed and both word list and text reading fluency gradually decreased across grades, irrespective of contextual processing requirements. Moreover, serial digit naming uniquely predicted both word-list and text reading fluency in Grades 3 and 5, beyond isolated word recognition speed. The same pattern of results was observed across languages. These findings challenge the notion that individual word recognition and reading fluency differ only in text-level processing requirements. Instead, an additional component of processing multi-item sequences appears to emerge by Grade 3, after a basic level of both accuracy and speed in word recognition has been achieved, offering a potential mechanism underlying the transition from dealing with words one at a time to efficient processing of word sequences.

Word list reading fluency is theoretically expected to depend on single word reading speed. Yet the correlation between the two diminishes with increasing fluency, while fluency remains strongly correlated to serial digit naming. We hypothesized that multi-element sequence processing is an important component of fluency. We used confirmatory factor analyses with serial and discrete naming tasks with matched items, including digits, dice, objects, number words, and words, performed by about 100 Greek children in each of Grades 1, 3, and 5. Separable serial and discrete factors emerged across grades, consistent with distinct skill dimensions. Loadings were greater for serial than discrete, suggesting that discrete processing does not fully determine serial processing. Average serial performance differed more than discrete between grades, consistent with improvement beyond single-item speed. Serial word reading aligned increasingly with the serial factor at higher grades. Thus, word reading fluency is gradually dominated by skill in simultaneously processing multiple successive items through different stages (termed "cascading"), beyond automatization of individual words.

Although it is established that reading fluency is more strongly related to serial naming of symbols than to naming of isolated items ("serial superiority effect"), the reason for the difference remains unclear. The purpose of this study was to examine the role of executive functions in explaining the serial superiority effect. One hundred seven Grade 6 Greek children were assessed on serial and discrete naming (digits, objects, and words), executive (inhibition, shifting, and updating) and non-executive tasks (simple choice reaction), and on a serial Rapid Alternating Stimuli task. Reading fluency correlated more strongly with serial naming than with discrete naming, consistent with the serial superiority effect. In hierarchical regression analyses, executive measures failed to account for variance shared between serial naming and reading fluency. In confirmatory factor analyses, including a discrete and a serial factor for the naming tasks, variance in the executive tasks not shared with simple choice reaction was not associated with the serial factor. Thus, the executive tasks failed to account for the serial superiority effect. The high correlation between the simple choice factor and the discrete naming factor suggests that method variance partially underlies the observed relationship between executive function tasks and word reading. We argue that the distinction between serial and discrete dimensions indicates that internally regulated cognitive control is crucial for the serial superiority in naming symbols and words.

Rapid automatized naming (RAN) is strongly correlated with reading fluency. A substantial part of this correlation is ascribed to the serial nature of the task. In this study, we tested the hypothesis that the left-to-right and downward scanning direction of reading and RAN may partially underlie their relationship. 107 Grade 6 Greek children were assessed on RAN digits and objects, a reversed-direction version of RAN digits, and word- and passage-reading fluency. The correlations of regular RAN with reading were not larger than those of RAN backward, ruling out visual scanning as an explanation of the relation between RAN and reading.

We present a framework for conceptualizing and analyzing responses to serial naming (rapid automatized naming) tasks, in which participants sequentially name stimuli presented simultaneously in an array. We aim to understand how these tasks are processed and why they are associated with reading skills. We analyzed responses by 298 Greek children in Grades 1, 3, and 5 to serial and discrete naming of digits, dice, objects, number words, and words. We measured the durations of silent and speech intervals in each task and grade and tested predictions about their relations based on a hypothesis of two overlapping processing stages. We found that articulation times were longer in the serial tasks, modulated by task demands. Total times were faster for serial than for discrete tasks, and their differences (serial advantage) were increasingly associated with the duration of speech intervals, consistent with efficient scheduling. Serial naming rate approached or exceeded the limits imposed by processing time, consistent with increasing processing overlap. These patterns were primarily observed for digits, number words, and—to some extent—dice, after Grade 1. Object naming seemed to pose different cognitive demands, stably across grades. Word reading exhibited the greatest differences between grades, consistent with rapid development of automaticity. We interpret the findings within a cascaded processing framework, in which performance is determined by the efficiency of cognitive scheduling of successive operations, constrained by susceptibility to interference from adjacent items. We propose that reading fluency is predicted by serial naming because it is also governed by the same scheduling constraints. Educational Impact and Implications Statement: Serial naming tasks, in which children are asked to name aloud an array of digits, pictures, or other familiar items, are widely used in educational assessment because they are associated with academic skills and, in particular, predict the development of reading fluency. In this study, we analyze children's vocal responses to serial naming tasks breaking them down into the duration of the spoken words and of any silent intervals between them. We interpret these durations under a theoretical approach that focuses on the scheduling and control of cognitive processes, that is, how the mind organizes and monitors its functions while going through the array naming the items. We claim that this approach can explain the established associations between naming and reading and can also shed light on the development of reading fluency and potential obstacles to that. Seeing fluency as not only about the automaticity of reading individual words, but also as a problem of cognitive scheduling, can inform our approaches to instruction and assessment by drawing attention to issues of interference and control and directing future research into potential interventions in those domains. [ABSTRACT FROM AUTHOR]