• Title/Summary/Keyword: validation studies

Search Result 1,077, Processing Time 0.031 seconds

The Development and Validation of an Evaluation Scale for Early Years Children's English Textbooks (유아영어교재 평가 척도 개발 및 타당화)

  • Choi, Hye-Jeong;Hyun, Eun-Ja
    • Korean Journal of Child Studies
    • /
    • v.32 no.4
    • /
    • pp.37-62
    • /
    • 2011
  • The purpose of this study was to develop an appropriate scale for evaluating early years children's English textbooks and to confirm the validity and reliability for the scale thus developed. The scale was administered to 563 Korean early childhood English teachers. Exploratory Factor Analysis (EFA) of the 24 item scale demonstrated Cronbach' ${\alpha}$ = .94 for internal consistency of the total items. Confimatory Factor Analysis (CFA) supported a four-factor structure. Cross-Validation for the retest accepted the four-factors. Those four factors were as follows; Contents & Organization as factor 1, Illustrations & Designs as factor 2, Materials & Topics, as factor 3 and Objectives as factor 4. The author suggests that these afore mentioned factors will prove to be most useful for evaluating the children's English textbooks which are apparently published in an often quite indiscriminant manner.

Development and Validation of the Korean Traditional Music Ability Test for Young Children (유아국악능력 검사도구 개발 및 양호도 검증)

  • Park, Hyoung-Shin;Kim, Young-Ok
    • Korean Journal of Child Studies
    • /
    • v.28 no.1
    • /
    • pp.37-54
    • /
    • 2007
  • The purpose of this study was the development and validation of a test of young children's understanding and their ability to represent the elements of traditional Korean music. The test was reviewed by professional groups and modified by preliminary testing. In its final form, the Korean Traditional Music Ability Test(KTMAT) for 4- to 6-year-old children consists of 43 items covering understanding and ability to represent Changdan(Changdanhyung, Bak, Bbareugi and Semyeorim) and Garak(Eumjeong and Sikimshae). Item analysis, reliability and validity tests were statistically significant. The KTMAT is an evaluation tool that can be used as basic material for developing children's musical ability, and it can provide valuable information showing direction for children's Korean traditional music education.

  • PDF

Fluid-structure interaction analysis of sloshing in an annular - sectored water pool subject to surge motion

  • Eswaran, M.;Goyal, P.;Reddy, G.R.;Singh, R.K.;Vaze, K.K.
    • Ocean Systems Engineering
    • /
    • v.3 no.3
    • /
    • pp.181-201
    • /
    • 2013
  • The main objective of this work is to investigate the sloshing behavior in a baffled and unbaffled three dimensional annular-sectored water pool (i.e., tank) which is located at dome region of the primary containment. Initially two case studies were performed for validation. In these case studies, the theoretical and experimental results were compared with numerical results and good agreement was found. After the validation of present numerical procedure, an annular-sectored water pool has been taken for numerical investigation. One sector is taken for analysis from the eight sectored water pool. The free surface is captured by Volume of Fluid (VOF) technique and the fluid portion is solved by finite volume method while the structure portions are solved by finite element approach. Baffled and un-baffled cases were compared to show the reduction in wave height under excitation. The complex mechanical interaction between the fluid and pool wall deformation is simulated using a partitioned strong fluid-structure coupling.

Validation of the Revised Class Play Scale for the Assessment of the Quality of Peer Relations (또래관계의 질 평가를 위한 RCP(Revised Class Play)의 타당화 연구)

  • Chun, Hui Young
    • Korean Journal of Child Studies
    • /
    • v.20 no.2
    • /
    • pp.3-19
    • /
    • 1999
  • The Revised Classroom Play(RCP) scale was validated for Korean 4th grade students. 104 boys and 80 girls took the translated RCP. Test-retest reliability was established with 41 children after 2 months, and test of criterion-related validation was established by the Social Behavior Scale administered to 71 children. All raw scores were standardized by classroom and sex to adjust for differences in the number of nominators and nominatees. The structure of the RCP resulted in 3 factors, 'sociability-disruptive' and 'shy-isolated', with 28 items similar to the original RCP 3 factors. For criterion-related validity, the correlations between the 3 factors of the RCP and the 3 factors of the Social Behavior Scale were positive. For internal consistencies, Cronbach's ${\alpha}$ of the RCP factors ranged from .77 to .94. Test-retest reliability coefficients ranged from .33 to .51. Analyses of variance revealed good item discrepancies for all 28 items. These results confirm the RCP as a valid and reliable measure of the quality of peer relations.

  • PDF

Validation of the Antisocial Behavior Scale (유아용 반사회적 행동 평가 척도의 타당화 연구)

  • Lee, Yanghee;Kim, Yun Young
    • Korean Journal of Child Studies
    • /
    • v.23 no.3
    • /
    • pp.109-121
    • /
    • 2002
  • The subjects of this validation of the Antisocial Behavior Scale(ABS) consisted of 323 normal and 29 clinically referred preschoolers between the ages of four and six years. The ABS has 3 factors: oppositional/aggression, nonsocial/egoism, and inattention. Results showed high test-retest reliability(r=.83-.90). The scale discriminated between the normal and clinical groups. The first(oppositional/aggression) and the third(inattention) factors of the ABS, measuring externalizing behaviors, correlated highly with the Externalizing Problems and Attention Problems Scales of the Korean Version of Child Behavior Checklist(K-CBCL). The second(nonsocial/egoism) factor of the ABS, measuring emotional areas correlated highly with the Emotional Liability Scale of the K-CBCL.

  • PDF

SciBabel: a system for crowd-sourced validation of automatic translations of scientific texts

  • Soares, Felipe;Rebechi, Rozane;Stevenson, Mark
    • Genomics & Informatics
    • /
    • v.18 no.2
    • /
    • pp.21.1-21.7
    • /
    • 2020
  • Scientific research is mostly published in English, regardless of the researcher's nationality. However, this growing practice impairs or hinders the comprehension of professionals who depend on the results of these studies to provide adequate care for their patients. We suggest that machine translation (MT) can be used as a way of providing useful translation for biomedical articles, even though the translation itself may not be fluent. To tackle possible mistranslation that can harm a patient, we resort to crowd-sourced validation of translations. We developed a prototype of MT validation and edition, where users can vote for that translation as valid, or suggest modifications (i.e., post-editing the MT). A glossary match system is also included, aiming at terminology consistency.

Deformable image registration in radiation therapy

  • Oh, Seungjong;Kim, Siyong
    • Radiation Oncology Journal
    • /
    • v.35 no.2
    • /
    • pp.101-111
    • /
    • 2017
  • The number of imaging data sets has significantly increased during radiation treatment after introducing a diverse range of advanced techniques into the field of radiation oncology. As a consequence, there have been many studies proposing meaningful applications of imaging data set use. These applications commonly require a method to align the data sets at a reference. Deformable image registration (DIR) is a process which satisfies this requirement by locally registering image data sets into a reference image set. DIR identifies the spatial correspondence in order to minimize the differences between two or among multiple sets of images. This article describes clinical applications, validation, and algorithms of DIR techniques. Applications of DIR in radiation treatment include dose accumulation, mathematical modeling, automatic segmentation, and functional imaging. Validation methods discussed are based on anatomical landmarks, physical phantoms, digital phantoms, and per application purpose. DIR algorithms are also briefly reviewed with respect to two algorithmic components: similarity index and deformation models.

Development and validation of a novel screening instrument to prioritize the orthodontic referral of developing malocclusion in children: The index for interceptive orthodontics referral

  • Saraswathy Devi Sinniah;Annapurny Venkiteswaran;Najiyatu Nazihah Zakaria
    • The korean journal of orthodontics
    • /
    • v.53 no.2
    • /
    • pp.116-124
    • /
    • 2023
  • Objective: The absence of a guideline to refer to developing malocclusions appropriately, may be a contributing factor to the inadequacy of timely interceptive orthodontics provision. This study aimed to develop and validate a new orthodontic grading and referral index to be used by dental frontliners to prioritize the orthodontic referral of developing malocclusion in children based on its severity. Methods: A cross-sectional study involving clinical assessment with 413 schoolchildren aged between 8.1 and 11.9 years was conducted in 2018. All the presenting malocclusion was listed and graded based on a few dental guidelines to produce the draft index. The validity and reliability of the draft index were tested using twenty study models. Face and content validation was carried out using the content validation index and Modified Kappa Statistics. Results: Fourteen dental and occlusal anomalies were identified as components of malocclusion and three grades of referral (monitor, standard, urgent) were included in the final index. The scale-level content validity index average value of 0.86 and 0.87 was obtained for content and face validation, respectively. There was moderate to excellent agreement in the Modified Kappa Statistics for both validations. Excellent inter- and intra-assessor agreement was obtained. The new index displayed valid and reliable scores. Conclusions: The Index for Interceptive Orthodontics Referral was developed and validated for the dental frontliners to identify and prioritize the developing malocclusion in children based on its severity and refer for orthodontic consultation to increase the possibility for interceptive orthodontics.

Estimation of daily maximum air temperature using NOAA/AVHRR data (NOAA/AVHRR 자료를 이용한 일 최고기온 추정에 관한 연구)

  • 변민정;한영호;김영섭
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
    • /
    • 2003.04a
    • /
    • pp.291-296
    • /
    • 2003
  • This study estimated surface temperature by using split-window technique and NOAA/AVHRR data was used. For surface monitoring, cloud masking procedure was carried out using threshold algorithm. The daily maximum air temperature is estimated by multiple regression method using independent variables such as satellite-derived surface temperature, EDD, and latitude. When the EDD data added, the highest correlation shown. This indicates that EDD data is the necessary element for estimation of the daily maximum air temperature. We derived correlation and experience equation by three approaching method to estimate daily maximum air temperature. 1) non-considering landcover method as season, 2) considering landcover method as season, and 3) just method as landcover. The last approaching method shows the highest correlation. So cross-validation procedure was used in third method for validation of the estimated value. For all landcover type 5, the results using the cross-validation procedure show reasonable agreement with measured values(slope=0.97, intercept=-0.30, R$^2$=0.84, RMSE=4.24$^{\circ}C$). Also, for all landcover type 7, the results using the cross-validation procedure show reasonable agreement with measured values(slope=0.993, Intercept=0.062, R$^2$=0.84, RMSE=4.43$^{\circ}C$).

  • PDF

Development and Validation of Parent-child Lexical Interaction Scale for Preschoolers (PLIS-P) (부모-유아 어휘 상호작용 척도의 개발 및 타당화)

  • Jung, Suji;Choi, Naya
    • Human Ecology Research
    • /
    • v.58 no.3
    • /
    • pp.429-445
    • /
    • 2020
  • This study developed and validated a 'Parent-child Lexical Interaction Scale for Preschoolers (PLIS-P)'. First, we developed the preliminary scale with 7 factors after reviewing previous literature related to vocabulary and literacy instruction for young children and reflected on feedback from child studies experts and mothers with young children. Subsequently, to validate the scale, the online survey was conducted on mothers with 5-to 6-year-old children who live in Seoul, Gyeonggi, Incheon, Gyeongsang, Chungcheong, Jeolla, Gangwon, and Jeju. Responses from 309 mothers were used to conduct exploratory and confirmatory factor analysis and correlation analysis. The results were as follows. First, the result of exploratory analysis showed that the model with 7 factors was satisfactory: (1) vocabulary exposure, (2) word elaboration, (3) scaffolding, (4) play activity, (5) conventional instruction, (6) word type awareness instruction, (7) word morphology instruction. Second, confirmatory factor analysis confirmed the good fit of the model. Third, the concurrent validity was confirmed by correlation analysis using EC-HOME. Last, the internal consistency reliability of each factor of PLIS-P was also confirmed. This study developed both a theoretical framework of parent-child lexical interaction and a Parent-child Lexical Interaction Scale for Preschoolers. This scale can be used by parents, practitioners, and researchers to acquire knowledge about interaction related to words between Korean parents and young children.