Speech and Hearing Sciences
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Item Age of word acquisition effects in treatment of children with phonological delays(Cambridge University Press, 2012) Gierut, Judith A.; Morrisette, Michele L.The effects of the age of acquisition (AoA) of words were examined in the clinical treatment of 10 preschool children with phonological delays. Using a single-subject multiple-baseline experimental design, children were enrolled in one of four conditions that varied the AoA of the treated words (early vs. late acquired) relative to their corresponding word frequency (high vs. low frequency). Phonological generalization to treated and untreated sounds in error served as the dependent variable. Results showed that late acquired words induced greater generalization, with an effect size four times greater than early acquired words, whereas the effects of word frequency were minimized. Results are discussed relative to hypotheses about the role of AoA in language acquisition and the relevance of this variable for phonological learning.Item An argument for adjuncts: Evidence from a phonologically disordered system(Cascadilla Press, 1999) Barlow, Jessica A.Item An astronomical opacity effect(IULC Publications, 2008) Dinnsen, Daniel A.Item Clinical application of phonological complexity(California Speech-Language Hearing Association, 2004) Gierut, Judith A.Item Commentary: Contributions of evidence-based practices to clinical treatment(California Speech-Language Hearing Association, 2005) Gierut, Judith A.Item Comparability of lexical corpora: Word frequency in phonological generalization(Informa Healthcare, 2007) Gierut, Judith A.; Dale, Rachel A.Statistical regularities in language have been examined for new insight to the language acquisition process. This line of study has aided theory advancement, but it also has raised methodological concerns about the applicability of corpora data to child populations. One issue is whether it is appropriate to extend the regularities observed in the speech of adults to developing linguistic systems. The purpose of this paper is to establish the comparability of lexical corpora in accounting for behavioural effects of word frequency on children's phonological generalization. Four word frequency corpora were evaluated in comparison of child/adult and written/spoken sources. These were applied post-hoc to generalization data previously reported for two preschool children. Results showed that the interpretation of phonological generalization was the same within and across children, regardless of the corpus being used. Phonological gains were more evident in low than high frequency words. The findings have implications for the design of probabilistic studies of language acquisition and clinical treatment programmes.Item Comparative markedness and induced opacity(Language Education Institute, 2010) Dinnsen, Daniel A.; Gierut, Judith A.; Farris-Trimble, Ashley W.Results are reported from a descriptive and experimental study that was intended to evaluate comparative markedness (McCarthy 2002, 2003) as an amendment to optimality theory. Two children (aged 4;3 and 4;11) with strikingly similar, delayed phonologies presented with two independent, interacting error patterns of special interest, i.e., Deaffrication ([tIn] 'chin') and Consonant Harmony ([$\text{g}$ↄ$\text{g}$] 'dog') in a feeding interaction ([kik] 'cheek'). Both children were enrolled in a counterbalanced treatment study employing a multiple base-line single-subject experimental design, which was intended to induce a grandfather effect in one case ([dↄ$\text{g}$] 'dog' and [kik] 'cheek') and a counterfeeding interaction in the other ([$\text{g}$ↄ$\text{g}$] 'dog' and [tik] 'cheek'). The results were largely supportive of comparative markedness, although some anomalies were observed. The clinical implications of these results are also explored.Item Consonant clusters in phonological acquisition: Applications to assessment and treatment(California Speech-Language Hearing Association, 2004) Barlow, Jessica A.Item Constraints in phonological acquisition(Cambridge University Press, 2004) Dinnsen, Daniel A.Item Context effects in acquisition of fricatives(Cascadilla Press, 1996) Dinnsen, Daniel A.Item The coronal fricative problem(Elsevier, 2013) Dinnsen, Daniel A.; Dow, Michael C.; Gierut, Judith A.; Morrisette, Michele L.; Green, Christopher R.This paper examines a range of predicted versus attested error patterns involving coronal fricatives (e.g. [s, z, θ, ð]) as targets and repairs in the early sound systems of monolingual English-acquiring children. Typological results are reported from a cross-sectional study of 234 children with phonological delays (ages 3 years; 0 months to 7;9). Our analyses revealed different instantiations of a putative developmental conspiracy within and across children. Supplemental longitudinal evidence is also presented that replicates the cross-sectional results, offering further insight into the life-cycle of the conspiracy. Several of the observed typological anomalies are argued to follow from a modified version of Optimality Theory with Candidate Chains (McCarthy, 2007).Item Cumulative faithfulness effects: Opaque or transparent?(IULC Publications, 2008) Farris-Trimble, Ashley W.Item DAT files(2021) Lulich, Steven; Alwan, AbeerItem DAT_files(2021) Lulich, Steven; Alwan, AbeerItem DAT_files(2021) Lulich, Steven; Alwan, AbeerItem DAT_files(2021) Lulich, Steven; Alwan, AbeerItem DAT_files(2021) Lulich, Steven; Alwan, AbeerItem DAT_files(2021) Lulich, Steven; Alwan, AbeerItem DAT_files(2021) Lulich, Steven; Alwan, AbeerItem DAT_files(2021) Lulich, Steven; Alwan, Abeer