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PubMed2005

The effects of speech production and vocabulary training on different components of spoken language performance.

A group of 21 hard-of-hearing and deaf children attending primary school were trained by their teachers on the production of selected consonants and on the meanings of selected words. Speech production, vocabulary knowledge, reading aloud, and speech perception measures were obtained before and after each type of training. The speech production training produced a small but significant improvement in the percentage of consonants correctly produced in words. The vocabulary training improved knowledge of word meanings substantially. Performance on speech perception and reading aloud were significantly improved by both types of training. These results were in accord with the predictions of a mathematical model put forward to describe the relationships between speech perception, speech production, and language measures in children (Paatsch, Blamey, Sarant, Martin, & Bow, 2004). These training data demonstrate that the relationships between the measures are causal. In other words, improvements in speech production and vocabulary performance produced by training will carry over into predictable improvements in speech perception and reading scores. Furthermore, the model will help educators identify the most effective methods of improving receptive and expressive spoken language for individual children who are deaf or hard of hearing.

Child↗
PubMed1995

A clinical report on receptive vocabulary skills in cochlear implant users.

OBJECTIVES: The aim was to measure the rate of vocabulary acquisition for cochlear implant users and compare the pre- and postoperative rates with published data for other groups with normal or impaired hearing. The hypothesis was that the postoperative rate would be greater than the preoperative rate. DESIGN: The Peabody Picture Vocabulary Test (PPVT) was administered to 32 children, adolescents, and prelinguistically deafened adults implanted with the 22-electrode cochlear implant. Age at implantation ranged from 2 yr 6 mo to 20 yr and implant use ranged from 6 mo to 7 yr 8 mo. RESULTS: The group mean postoperative performance at various postoperative intervals was significantly higher than mean preoperative performance. Single-subject data indicated statistically significant gains over time on this test for 13 of the subjects. The mean postoperative rate of vocabulary acquisition of 1.06 times the rate for normally hearing children was significantly greater than the mean preoperative rate of 0.43. CONCLUSION: These rates of improvement were in accord with previous reports on smaller numbers of implant users, but could not be attributed unambiguously to use of the implant because no control group was used for this clinical work. Variables such as age at implantation, duration of profound deafness, communication mode, and speech perception skill failed to significantly predict rate of improvement of the PPVT.

Adolescent↗
PubMed2006

Development of a controlled vocabulary and software application to analyze fruit shape variation in tomato and other plant species.

The domestication and improvement of fruit-bearing crops resulted in a large diversity of fruit form. To facilitate consistent terminology pertaining to shape, a controlled vocabulary focusing specifically on fruit shape traits was developed. Mathematical equations were established for the attributes so that objective, quantitative measurements of fruit shape could be conducted. The controlled vocabulary and equations were integrated into a newly developed software application, Tomato Analyzer, which conducts semiautomatic phenotypic measurements. To demonstrate the utility of Tomato Analyzer in the detection of shape variation, fruit from two F2 populations of tomato (Solanum spp.) were analyzed. Principal components analysis was used to identify the traits that best described shape variation within as well as between the two populations. The three principal components were analyzed as traits, and several significant quantitative trait loci (QTL) were identified in both populations. The usefulness and flexibility of the software was further demonstrated by analyzing the distal fruit end angle of fruit at various user-defined settings. Results of the QTL analyses indicated that significance levels of detected QTL were greatly improved by selecting the setting that maximized phenotypic variation in a given population. Tomato Analyzer was also applied to conduct phenotypic analyses of fruit from several other species, demonstrating that many of the algorithms developed for tomato could be readily applied to other plants. The controlled vocabulary, algorithms, and software application presented herein will provide plant scientists with novel tools to consistently, accurately, and efficiently describe two-dimensional fruit shapes.

Algorithms↗
PubMedDate not supplied

The development of word retrieval abilities in the second year and its relation to early vocabulary growth.

The present research investigated the development of word retrieval abilities late in the second year when most children display a marked increase in word production. When asked what was hidden in a given box, children with still quite limited productive vocabularies were reliably less likely to produce the labels of the hidden objects than were children with larger productive vocabularies even though (1) all children could name those objects and (2) all children did well when asked to find those same hidden objects. Additionally, the provision of pictorial cues facilitated word retrieval, especially in the early stage of lexical development. Naming errors during a naturalistic book-reading session peaked in children whose productive vocabularies had recently begun to expand, further suggesting that word retrieval processes undergo significant changes at this time.

Child Language↗
PubMedDate not supplied

The specificity of environmental influence: socioeconomic status affects early vocabulary development via maternal speech.

The hypothesis was tested that children whose families differ in socioeconomic status (SES) differ in their rates of productive vocabulary development because they have different language-learning experiences. Naturalistic interaction between 33 high-SES and 30 mid-SES mothers and their 2-year-old children was recorded at 2 time points 10 weeks apart. Transcripts of these interactions provided the basis for estimating the growth in children's productive vocabularies between the first and second visits and properties of maternal speech at the first visit. The high-SES children grew more than the mid-SES children in the size of their productive vocabularies. Properties of maternal speech that differed as a function of SES fully accounted for this difference. Implications of these findings for mechanisms of environmental influence on child development are discussed.

Child, Preschool↗
PubMedDate not supplied

Maternal correlates of growth in toddler vocabulary production in low-income families.

This study investigated predictors of growth in toddlers' vocabulary production between the ages of 1 and 3 years by analyzing mother-child communication in 108 low-income families. Individual growth modeling was used to describe patterns of growth in children's observed vocabulary production and predictors of initial status and between-person change. Results indicate large variation in growth across children. Observed variation was positively related to diversity of maternal lexical input and maternal language and literacy skills, and negatively related to maternal depression. Maternal talkativeness was not related to growth in children's vocabulary production in this sample. Implications of the examination of longitudinal data from this relatively large sample of low-income families are discussed.

Child, Preschool↗
PubMed1995

Multiple choice vocabulary test MWT as a valid and short test to estimate premorbid intelligence.

The discrepancy between current and premorbid ability is a relevant indicator of acquired mental impairment, which itself is closely related to general cerebral dysfunction. The use of tests sensitive to cerebral dysfunction, raises relatively few problems compared with tests being resistant that are used to estimate premorbid mental ability. For premorbid ability, verbal tests assessing knowledge, especially vocabulary, have been shown to be valid. A test, possibly more insensitive to brain dysfunction than the ones usually administered, is the multiple choice vocabulary test (MWT = Mehrfachwahl-Wortschatz-Test). At present only German versions are available. They are presented in some detail because of their advantages. Construction of the MWT is simple, and it can be easily administered in about five minutes. The results correlate fairly well with global IQ in healthy adults (median of r = 0.72 in 22 samples) and are more insensitive to current disturbances than such tests as the WAIS vocabulary test. The limitations of premorbid tests with respect to diagnostic validity are discussed. It is concluded, that studies which do not control premorbid intelligence have to be considered as a "malpractice" and should not be accepted by scientists.

Adolescent↗
PubMedDate not supplied

The PEN-Ivory project: exploring user-interface design for the selection of items from large controlled vocabularies of medicine.

OBJECTIVE: To explore different user-interface designs for structured progress note entry, with a long-term goal of developing design guidelines for user interfaces where users select items from large medical vocabularies. DESIGN: The authors created eight different prototypes of a pen-based progress-note-writing system called PEN-Ivory. Each prototype allows physicians to write patient progress notes using simple pen-based gestures such as circle, line-out, and scratch-out. The result of an interaction with PEN-Ivory is a progress note in English prose. The eight prototypes were designed in a principled way, so that they differ from one another in just one of three different user-interface characteristics. MEASUREMENTS: Five of the eight prototypes were tested by measuring the time it took 15 users, each using a distinct prototype, to document three patient cases consisting of a total of 63 medical findings. RESULTS: The prototype that allowed the fastest data entry had the following three user-interface characteristics: it used a paging rather than a scrolling form, it used a fixed palette of modifiers rather than a dynamic "pop-up" palette, and it made available all findings from the controlled vocabulary at once rather than displaying only a subset of findings generated by analyzing the patient's problem list. CONCLUSION: Even simple design changes to a user interface can make dramatic differences in user performance. The authors discuss possible influences on performance, such as positional constancy, user uncertainty and system anticipation, that may contribute significantly to the effectiveness of systems that display menus of items from large controlled vocabularies of medicine.

Medical Records↗
PubMedDate not supplied

A review of major nursing vocabularies and the extent to which they have the characteristics required for implementation in computer-based systems.

Building on the work of previous authors, the Computer-based Patient Record Institute (CPRI) Work Group on Codes and Structures has described features of a classification scheme for implementation within a computer-based patient record. The authors of the current study reviewed the evaluation literature related to six major nursing vocabularies (the North American Nursing Diagnosis Association Taxonomy 1, the Nursing Interventions Classification, the Nursing Outcomes Classification, the Home Health Care Classification, the Omaha System, and the International Classification for Nursing Practice) to determine the extent to which the vocabularies include the CPRI features. None of the vocabularies met all criteria. The Omaha System, Home Health Care Classification, and International Classification for Nursing Practice each included five features. Criteria not fully met by any systems were clear and non-redundant representation of concepts, administrative cross-references, syntax and grammar, synonyms, uncertainty, context-free identifiers, and language independence.

Evaluation Studies as Topic↗
PubMedDate not supplied

An anthropologist's viewpoint: observations and commentary regarding "Implementation of nursing vocabularies in computer-based systems".

Those who work in the area of vocabularies, like all researchers, bring some assumptions to that work. Such assumptions include both cultural notions and beliefs specific to particular social worlds within the broader society. In this article, assumptions and beliefs expressed by participants during the conference on "Implementation of Nursing Vocabularies in Computer-based Systems" are summarized. Questions are raised concerning the relationship between cultural notions and beliefs and nursing vocabularies.

Anthropology↗
PubMedDate not supplied

Challenges and issues related to implementation of nursing vocabularies in computer-based systems.

As key stakeholders from the clinical setting and vendor communities, the authors share a summary of their collective experience related to the challenges and issues associated with implementing the vocabularies recognized by the American Nurses Association in several installations of commercially available clinical information systems. Although the focus of the article is on summarizing the challenges and issues, it is of note that the authors' experiences across care settings suggest that the experience and effort of using one of the ANA-recognized vocabularies in a computer-based system are essentially worthwhile and positive. The issues and challenges fall into two categories: 1) those related to the developmental status of nursing vocabularies, and 2) those related to the adoption or implementation of new technology.

American Nurses' Association↗
PubMedDate not supplied

Curriculum-based measurement in the content areas: vocabulary matching as an indicator of progress in social studies learning.

The purpose of this study was to examine the reliability and validity of curriculum-based measures as indicator of growth in content-area learning. Participants were 58 students in 2 seventh-grade social studies classes. CBM measures were student- and administrator-read vocabulary-matching probes. Criterion measures were performance on a knowledge test, the social studies subtest of the Iowa Test of Basic Skills (ITBS), and student grades. Both the student- and examiner-read measures reflected change in performance; however, only the student-read measure resulted in interindividual differences in growth rates. Significant relations were found between the growth rates generated by the student-read vocabulary measure and student course grades, ITBS scores, and growth on the knowledge test. These results support the validity of a vocabulary-matching measure as an indicator of student learning in the content areas. The results are discussed in terms of the use of CBM as a system for monitoring performance and evaluating interventions for students with learning disabilities in content-area classrooms.

Adolescent↗
PubMed1990

Teaching abstract vocabulary with the keyword method: effects on recall and comprehension.

Twenty-five adolescents with learning disabilities were randomly assigned to either a keyword mnemonic condition or an experimenter-directed rehearsal condition and were individually taught 16 difficult vocabulary words, including 8 concrete and 8 abstract words. After an instructional period, students were given a test of literal recall as well as a comprehension test of their ability to apply newly acquired vocabulary words in a different context. Results indicated that mnemonically trained students outperformed control students on both abstract and concrete words, and on recall tests as well as on comprehension tests. Implications for vocabulary instruction as well as theories of learning disabilities are discussed.

Adolescent↗
PubMedDate not supplied

Sex- and age-related differences in colour vocabulary.

Data were collected on the colour names used by 26 females and 24 males in naming 200 colour samples. Women used more elaborate colour names than men but, contrary to other findings, older subjects of both sexes used more elaborate names than younger subjects. Older men in our sample had a more elaborate vocabulary than younger women, showing that although sex differences were well established, vocabulary continued to increase with age. Colour related hobbies were significantly correlated with enhanced vocabulary for the male group, but not for the female group.

Adult↗
PubMed2002

The feasibility and acceptability of implementing formal evaluation sessions and using descriptive vocabulary to assess student performance on a clinical clerkship.

BACKGROUND: A systematized approach to descriptive evaluation of clinical performance using a vocabulary of global descriptors in the setting of formal evaluation and feedback sessions has been shown to be reliable and valid. The feasibility of this method beyond the institution at which it was developed has not been studied. PURPOSE: To determine the feasibility and acceptability of implementing formal evaluation and feedback sessions, using a vocabulary of global descriptors, in a third-year core clinical clerkship. METHODS: In 1997, the University of Utah internal medicine clerkship introduced an evaluation method in which student performance was discussed at formal sessions, using a taxonomy of global terms describing progressive development from "reporter" to "interpreter" to "manager/educator" (R-I-M-E). The sessions were face-to-face meetings between the clinical teachers and a clerkship director, at three-week intervals through the twelve-week clerkship at the inpatient teaching sites. Following the evaluation session students met individually with the clerkship director for feedback. To determine feasibility, the authors estimated the time and resources necessary to administer the system and recorded actual teacher attendance over 2 academic years (1997-99). Anonymous surveys, using a four-point, Likert-type scale, were used to determine acceptance of the method by faculty, residents, and students. RESULTS: Attendance was high for residents (79%) and faculty (72%). Mean survey responses from residents and faculty rated the descriptive system "more valid" than the previous method. A majority of the students rated the method as either "helpful" (30%) or "very helpful" (50%). Time requirement for eight to ten students at each teaching site, for evaluation and feedback sessions was one-half day per week of the clerkship director, every three weeks. CONCLUSION: Our experience establishes the feasibility of implementing this system of formal evaluation and feedback, using descriptive vocabulary, beyond the institution at which it was developed. Students, residents, and faculty endorsed this evaluation system and the survey results suggest substantial utility and face validity.

Clinical Clerkship↗
PubMed1996

Deaf students' recall of Spanish vocabulary under three testing conditions.

This investigation examined the effects of three training conditions on deaf students' recall of Spanish word meaning as measured by performance on a Spanish vocabulary test. The conditions were; a) repeated written productions, b) repeated fingerspelling, and c) repeated silent reading of selected Spanish words and their English equivalents. Subjects were 30 deaf undergraduate students enrolled in introductory Spanish courses at Gallaudet University in Washington, DC. Researchers assigned 10 subjects to each of the 3 training groups. A 30 item pretest was administered to verify that the vocabulary was not known to the subjects. A posttest containing 25 items from the pretest was administered twice to the subjects. For short-term memory there were no statistically significant differences across the 3 conditions. For long-term memory scores under the repeated written condition were significantly higher than scores under fingerspelling and silent reading conditions. The use of a study strategy incorporating writing may enhance the learning of Spanish vocabulary by deaf college students. The strategy could also be applied to other foreign languages and a range of academic subjects for deaf students.

Deafness↗
PubMed1996

Visuospatial/vocabulary differences in boys and girls and a potential age-dependent drift in vocabulary proficiency.

A total of 188 monolingual (English) boys and girls whose ages ranged from 6 years through 14 years were administered the Vocabulary and Block Design subtests of the Wechsler Intelligence Scale for Children. Although the boys (n = 85) displayed significantly greater relative strengths for the visuospatial task than the girls (n = 103), the effect was due primarily to the boys' less proficient Vocabulary scores. The detection of a significant linear decrease (r = -.32) in standardized scores for Vocabulary but not for Block Design over this age span was not expected. The drift over 9 grades was equivalent to more than one standard deviation. Possible sources of interference such as exposure to the same second language that occupied 6% to 12% of the instructional time are suggested.

Adolescent↗
PubMed2003

Generating anagrams from multiple core strings employing user-defined vocabularies and orthographic parameters.

Anagrams are used widely in psychological research. However, generating a range of strings with the same letter content is an inherently difficult and time-consuming task for humans, and current computer-based anagram generators do not provide the controls necessary for psychological research. In this article, we present a computational algorithm that overcomes these problems. Specifically, the algorithm processes automatically each word in a user-defined source vocabulary and outputs, for each word, all possible anagrams that exist as words (or as nonwords, if required) as defined by the same source vocabulary. Moreover, we show how the output of the algorithm can be filtered to produce anagrams within specific user-defined orthographic parameters. For example, the anagrams produced can be filtered to produce words that share, with each other or with other words in the source vocabulary, letters in only certain positions. Finally, we provide free access to the complete Windows-based program and source code containing these facilities for anagram generation.

Algorithms↗