Access to abstract permanently restricted to Ball State community only / Access to thesis permanently restricted to Ball State community only / Department of Educational Psychology

Honors Project--Smith College, Northampton, Mass., 2009. / Includes bibliographical references (p. 72-74).

Incidental language acquisition has been a topic of interest in the field of education, cognitive psychology, and behavior analysis (Horne & Lowe, 1996; Carey & Bartlett, 1978; Greer & Speckman, 2009). Researchers in the area of verbal behavior and derived relations have developed multiple perspectives that overlap in many ways (Greer & Ross, 2008; Greer & Speckman, 2009; Hayes, Barnes-Holmes, and Roche, 2001). Despite the overlap of these perspectives, research to date has been conducted independently. Fienup (2019) acknowledges the overlap in the respective work and suggest that integration can produce a more cohesive and comprehensive understanding of the development of verbal behavior. Study 1 included two experiments. In Experiment 1, the experimenter exposed 14 preschoolers with varying degrees of bidirectional naming (3 classified as having bidirectional naming (BiN), 8 as having unidirectional naming (UniN), and 3 as having no incidental naming (NiN) to two conditions, 1) directly reinforcing speaker (tact) responses and testing for the emergence of listener (point to) responses, and 2) directly reinforcing listener responses and testing for the emergence of speaker responses. The experimenter rotated between two conditions. Results suggested that participants with BiN readily derived speaker and listener responses, participants with unidirectional naming (UniN) readily derived listener, but not speaker responses, and participants with NiN had difficulty acquiring directly reinforced responses and deriving responses. In Study 1 Experiment 2, six participants with unidirectional naming (UniN) were selected from Experiment 1. Multiple Exemplar Instruction (MEI) and stimulus-stimulus pairing procedures were implemented to induce the capability of BiN. Following the acquisition of BiN, the experimenter replicated the repeated measure design of directly reinforcing speaker or listener responses and testing for the emergence of corresponding responses. Upon the acquisition of BiN, participants derived both listener and speaker relations, suggesting that the development from UniN to BiN is associated with the stimulus control for speaker responses following direct reinforcement for listener responses. Study 2 addressed the limitations of Study 1 and replicated the procedures with new participants and new science educational content. The experimenter selected 6 participants that demonstrated BiN and 5 that demonstrated UniN. Data support the findings of Study 1, suggesting that degrees of bidirectional naming are associated with degrees of derived relational responding.

Assessment of speech sound production in young children provides the basis for diagnosis and treatment of speech sound disorders. Standardized single-word articulation tests are typically used for identification of speech sound errors because they can provide an efficient means of obtaining a speech sample for analysis and comparison to same-age peers. A major criticism of single-word articulation tests is that they may not accurately reflect speech sound production abilities in conversation. Comparison of performance in single-word and conversational contexts has produced conflicting results in the available research. The purpose of the present study was to compare speech samples obtained using an extensive single-word naming task with samples of continuous speech elicited by sentence imitation. It was hypothesized that there would be differences in overall speech sound production accuracy as well as differences in types and frequency of errors across the two sampling conditions. The present study is a pilot investigation as part of the development of the Phonological and Bilingual Articulation Assessment, English Version (PABA-E; Gildersleeve-Neumann, unpublished). Twelve preschool children ages 3;11 to 4;7 (years;months) from the Portland Metropolitan area participated in this study. Participants were monolingual native English speakers and exhibited typical speech sound development as measured by the GFTA-2 (Goldman-Fristoe, 2000). Hearing acuity for participants was within acceptable limits, and participants' families reported no significant illnesses or developmental concerns that would impact speech sound production abilities. Mean t-scores for percentage of consonants correct (PCC) in the single-word samples were significantly higher at the .05 level than those for the sentence imitation samples. There was no significant difference between the percentage of vowels produced correctly (PVC) in the two sampling conditions. Similar types of error patterns were found in both the single-word and continuous speech samples, however error frequency was relatively low for the participant population. Only the phonological process of stopping was found to be significantly different across sampling conditions. The mean frequency of occurrence for stopping was found to be significantly higher in continuous speech as compared with the production of single-words.

Many bilingual Spanish-English preschool aged children are impacted by speech sound disorders; and research has shown that bilingual speech sound systems develop differently than monolinguals'. Research has also shown that, for monolingual English and Spanish speakers, parent reports can be a valid tool for identification and single-word assessments can effectively diagnose speech disorder, yet little, if any, normative data or information about the validity of parent reports as an identification tool exists for bilingual Spanish-English speakers. The purpose of the present study was to create bilingual speech normative data for English single-word assessment scores for percent consonants correct (PCC), percent vowels correct (PVC), and the index of phonetic complexity (IPC). It also sought to determine correlations of speech scores and parent reports, which was done as an extension of Stertzbach's 2005 study with monolingual Spanish speakers. Fifty-six bilingual Spanish-English 4-year-olds were administered a single-word assessment in English and normative data was generated from the PCC, PVC, and IPC scores. That normative data was correlated with Likert values from the parent surveys to establish the validity of the report as an identification tool, and finally, the disordered scores (as determined by the normative data) were explored in relation to previous suspicion or diagnosis of disorder. The normative data showed 89% of speech scores falling within the typical range for both PCC and PVC and 93% for IPC. Pearson coefficients were computed by regression analysis and parent reports were deemed a valid tool for identification based on statistically significant correlations (at the .05 level) for 6 of 10 questions. Previous suspicions of disorder, based on parent report or examiner questionnaire, were 87.5% and 91% accurate, respectively, while current diagnosis, based on the presence of an existing Individualized Family Service Plan (IFSP), was 93% accurate. The results were consistent with previous research showing the prevalence of speech disorder as well as the validity of the parent report.

The primary purpose of this study was to determine whether commercially available software, modified with enhanced dialogue from instructors, could improve discourse skills in Head Start students over improvements obtained without enhanced instructor dialogue, and over improvements of ordinary classroom instruction. Additional information about modifying software or designing new software to improve discourse skills was investigated. Ninety-three students in five Head Start classes of 4- year-olds were tested on the Preschool Language Assessment Instrument (PLAI) and the Peabody Picture Vocabulary Test- Revised (PPVT-R). Students within each of the five classes were matched on scores from the PLAI and the PPVT-R and then randomly assigned to one of three conditions: (a) software with enhancement, (b) software alone, or (c) control condition. Five student speech-language clinicians worked with the students assigned to the computer-aided conditions. The third group of students received normal instruction from the Head Start staff. Following a treatment period of 3 months, a repeated measures analysis of variance (ANOVA) was used to analyze pretest/posttest PLAI and PPVT-R scores of the Head Start students (N=78). No significant group differences were found for treatment. Significant group differences were found for time. Qualitative analysis from anecdotal records and a user response survey provided additional information about the computer-assisted program and the speech and language of the students in the two computer conditions. The records and clinician survey also suggested how the software could be modified or new software designed to improve discourse skills in young children. The concept of scaffolding was applied to the two computer-aided conditions used in this study. Selected examples from the spontaneous speech of students during computer training sessions demonstrate the relationship between scaffolding instruction and the computer-assisted condition, software with enhancement (CAI+). A theoretical framework which follows from this relationship is suggested. Implications for the use of software with enhancement by non-communication specialists with the speech-language clinician in the role of consultant are provided. / Ed. D.

Human infants have been shown to have an innate capacity to acquire their mother tongue. In recent decades, the advent of the functional magnetic resonance imaging (fMRI) technique has made it feasible to explore the neural basis underlying language acquisition and processing in children, even in newborn infants (for reviews, see Kuhl & Rivera-Gaxiola, 2008; Kuhl, 2010) . Spontaneous low-frequency (< 0.1 Hz) fluctuations (LFFs) in the resting brain have been shown to be physiologically meaningful in the seminal study (Biswal et al., 1995) . Compared to task-based fMRI, resting-state fMRI (rs-fMRI) has some unique advantages in neuroimaging research, especially in obtaining data from pediatric and clinical populations. Moreover, it enables us to characterize the functional organization of the brain in a systematic manner in the absence of explicit tasks. Among brain systems, the language network has been well investigated by analyzing LFFs in the resting brain. This thesis attempts to investigate the functional connectivity within the language network in typically developing preschool children and the covariation of this connectivity with children’s language development by using the rs-fMRI technique. The first study (see Chapter 2.1; Xiao et al., 2016a) revealed connectivity differences in language-related regions between 5-year-olds and adults, and demonstrated distinct correlation patterns between functional connections within the language network and sentence comprehension performance in children. The results showed a left fronto-temporal connection for processing syntactically more complex sentences, suggesting that this connection is already in place at age 5 when it is needed for complex sentence comprehension, even though the whole functional network is still immature. In the second study (see Chapter 2.2; Xiao et al., 2016b), sentence comprehension performance and rs-fMRI data were obtained from a cohort of children at age 5 and a one-year follow-up. This study examined the changes in functional connectivity in the developing brain and their relation to the development of language abilities. The findings showed that the development of intrinsic functional connectivity in preschool children over the course of one year is clearly observable and individual differences in this development are related to the advancement in sentence comprehension ability with age. In summary, the present thesis provides new insights into the relationship between intrinsic functional connectivity in the brain and language processing, as well as between the changes in intrinsic functional connectivity and concurrent language development in preschool children. Moreover, it allows for a better understanding of the neural mechanisms underlying language processing and the advancement of language abilities in the developing brain.

Human infants have been shown to have an innate capacity to acquire their mother tongue. In recent decades, the advent of the functional magnetic resonance imaging (fMRI) technique has made it feasible to explore the neural basis underlying language acquisition and processing in children, even in newborn infants (for reviews, see Kuhl & Rivera-Gaxiola, 2008; Kuhl, 2010) . Spontaneous low-frequency (< 0.1 Hz) fluctuations (LFFs) in the resting brain have been shown to be physiologically meaningful in the seminal study (Biswal et al., 1995) . Compared to task-based fMRI, resting-state fMRI (rs-fMRI) has some unique advantages in neuroimaging research, especially in obtaining data from pediatric and clinical populations. Moreover, it enables us to characterize the functional organization of the brain in a systematic manner in the absence of explicit tasks. Among brain systems, the language network has been well investigated by analyzing LFFs in the resting brain. This thesis attempts to investigate the functional connectivity within the language network in typically developing preschool children and the covariation of this connectivity with children’s language development by using the rs-fMRI technique. The first study (see Chapter 2.1; Xiao et al., 2016a) revealed connectivity differences in language-related regions between 5-year-olds and adults, and demonstrated distinct correlation patterns between functional connections within the language network and sentence comprehension performance in children. The results showed a left fronto-temporal connection for processing syntactically more complex sentences, suggesting that this connection is already in place at age 5 when it is needed for complex sentence comprehension, even though the whole functional network is still immature. In the second study (see Chapter 2.2; Xiao et al., 2016b), sentence comprehension performance and rs-fMRI data were obtained from a cohort of children at age 5 and a one-year follow-up. This study examined the changes in functional connectivity in the developing brain and their relation to the development of language abilities. The findings showed that the development of intrinsic functional connectivity in preschool children over the course of one year is clearly observable and individual differences in this development are related to the advancement in sentence comprehension ability with age. In summary, the present thesis provides new insights into the relationship between intrinsic functional connectivity in the brain and language processing, as well as between the changes in intrinsic functional connectivity and concurrent language development in preschool children. Moreover, it allows for a better understanding of the neural mechanisms underlying language processing and the advancement of language abilities in the developing brain.

Over the past 20 years, the United States has seen a rapid increase in school age students entering PK-12 schools for whom English is not their primary home language. These students are known as English learners (ELs). In Oregon, 77% of ELs speak Spanish and constitute the largest minority group, 21% of the total K-12 student enrollment in 2011-2012. With such potential for bilingualism in schools, bilingual teachers should be prepared to teach biliteracy effectively, especially in the early school years when students learn to read. There is an increasing demand for bilingual teachers in Oregon each year to teach in bilingual programs, particularly at the primary grade levels. However, for the most part, the emphasis of instruction and teacher preparation is on developing student English skills rather than supporting bilingualism (Flores, Sheets, & Clark, 2011; Macedo, Dendrinos, & Gounari, 2003; Wink, 2005). There is a need in Oregon to effectively prepare bilingual teachers who can help Spanish-speaking students develop biliteracy skills in the early grades. The purpose of this qualitative phenomenological study was to explore in depth the lived experiences among Oregon bilingual reading specialists in relation to biliteracy. The research question was "How do bilingual reading specialists understand the phenomena of teaching biliteracy to bilingual students?" Three themes emerged from the interviews conducted: collaboration, language and caring. The insights gained from the lived experiences of bilingual reading specialists can allow teacher educators, school district personnel, and state policy makers to better understand the phenomenon of developing biliteracy and change the way we prepare bilingual teachers in Oregon regarding biliteracy pedagogy. Recommendations are offered for stakeholders, such as the need to include courses in biliteracy as part of the initial teaching license, deliver courses in Spanish, and provide practicum experiences that prepare bilingual teachers and reading specialists to collaborate with colleagues and families. Also, it is important that some of the strategies identified at the state level as part of the English Learner Strategic Plan specifically focus on biliteracy and dual language programs.

published_or_final_version / Education / Master / Master of Education