Validity Result Research Articles

PENGEMBANGAN PERANGKAT PEMBELAJARAN MODEL GROUP INVESTIGATION DENGAN ADVANCE ORGANIZER UNTUK MENINGKATKAN HASIL BELAJAR DAN KETERAMPILAN PEMECAHAN MASALAH PADA SISWA SMP

This research aims to develop a learning material of group investigation model with advance organizer to improve learning output and student’s problem solving skills in SMPN 1 Tanjungbumi. This study would be expected to be applied using the several assessing of instruments. The experiment design of the material resources used one group pretest-posttest design. The assessing of instruments consist of lesson plan, BAS, worksheet, observing activity, test (product, process, and psychomotor), and questionnaire.
 The validity result showed that lesson plan, BAS, and LKS had in feasible category, LP product and LP process had in feasible category. The assessment of BAS and LKS showed that BAS and LKS had in understandable material by students. Learning feasibility of group investigation model with advance organizer is in excellent category. Reliability of students’ activity observation from the lesson plan with the percentage 92,32%. The completeness of product’s indicator with the percentage 83,33%, and the completeness of process’ indicator (problem solving skills) with the percentage 73,33%. The completeness of the individual output product with the percentage 93,33%, the completeness of the individual output process (problem solving skills) with the percentage 93,33%, the completeness of the individual output psikomotor with the percentage 100%, and the completeness of the individual output afektif with the percentage 100%. Group investigation model with advance organizer got positive respond from the students. The difficulties found during this study was group investigation model with advance organizer was a new thing for the students so the teacher should give information about group investigation model with advance organizer for the students.

Validity of clinical methods in the detection of leg-length discrepancies.

Lower limb-length discrepancy is highly prevalent in the general population. Numerous methods and measurement instruments for its diagnosis appear in the literature, but there has not been an agreement about their validity. The aim of this work is to determine the validity of the Weber-Barstow manoeuvre (WB) of the pelvic measuring device (PMD) and the block method (BM), in comparison with standing anteroposterior telemetry of the lower limbs in subjects with leg-length discrepancy (LLD). 71 subjects took part in the study. First, the WB was carried out in the supine position. the LLD was then quantified standing with the PMD and with the BM. Lastly, standing anteroposterior telemetry of the lower limbs was obtained. This was measured with Autocad 2013, using the highest part of the head of the femur and the most distal edge of the bisection of the femur as points of reference. The Kappa index was calculated to check the agreement between the WB manoeuvre and the telemetry. This was 0.52. The relation of the PMD, BM and telemetry difference variables was calculated. A direct relation between the BM and telemetry was shown, with p > 0.05 (0.48 cm and 0.51 cm, respectively). The WB manoeuvre got acceptable validity results. The PMD was not valid according to the results obtained in this work. The BM achieved a good validity result for the diagnosis of LLD.

DESAIN DAN UJI COBA MODUL KIMIA BERORIENTASI GREEN-CHEMISTRY PADA MATERI LARUTAN ELEKTROLIT DAN NONELEKTROLIT

AbstractThis research aimed at designing Green-Chemistry-oriented Chemistry module on Electrolyte and Nonelectrolyte Solution lesson that was valid based on validity media expert, lesson expert, teacher practicality, and student response. It was Research and Development (R&D) research that implemented Borg and Gall Development model. It was administered at the eleventh-grade students of MIPA 1 of State Senior High School 1 Kampar. The instruments of collecting the data were validity test questionnaire by the experts, teacher practicality test questionnaire, and student response questionnaire. The collected data were analyzed by using Descriptive qualitative and quantitative analysis techniques. The module could be stated appropriate, if it passed validity and practicality aspects. The validity result of chemistry module by 2 media experts and a material expert was 87.09% and it was on very valid category. Practicality test of 3 Chemistry subject teachers showed a result 87.84% that was on very practical category, and it was obtained a very positive response from 10 students, it could be seen from questionnaire result 90.78%. Based on these results, it could be identified that Green-Chemistry-oriented Chemistry module on Electrolyte and Nonelectrolyte Solution lesson was appropriate and practical to be an additional teaching material for teachers at a school.Keywords:Module, Green-Chemistry, Electrolyte and Nonelectrolyte Solution.

Conceptual Framework of Reflective-Inquiry Learning Model to Promote Critical Thinking Ability of Preservice Physics Teachers

Critical thinking has been a crucial competence in 21st century learning and encouraging critical thinking ability at the university level is assumed as an important achievement at higher education. This study was aimed at developing Reflective-Inquiry Learning (RIL) model to promote critical thinking ability for preservice teachers in particular. This study was a pre-developmental stage in which the developed RIL model was constructed in line with the supporting theories and empirical findings. With the result that, it produced a hypothetical framework from RIL model itself. Then, the product of the RIL model was validated with involving 7 experts as validators through a focus group discussion (FGD) process. The assessed aspect of the product consisted of the content validity and construct validity. The results of the product validity were analyzed through a descriptive analysis viewed from the average score of the validity. The result of the validity showed the validity level (Va) of the RIL model was 4.28 and it was said very valid. The conceptual framework of the developed model and the validity result would be further elaborated in this article.

Effectivity of Online Learning Teaching Materials Model on Innovation Course of Vocational and Technology Education

In Indonesia, development of education was not faster than technology development (era of revolution industry 4.0), so that combination between education and technology were needed so that both of them could be balance. So that, it needed development of teaching materials on innovation course at Technical Vocational Education and Training (TVET) used Problem Based Learning by online. This study was carried out in TVET Magister Program at Universitas Negeri Padang. The type of study was Research and Development (R&D) and model of study was 4-D model (define, design, develop, disseminate). The instrument was validated by 3 of experts judgment, Aiken’s validity result was 0,929 and ICC realibility was 0,811. Effectivity result was obtained of gain score, it was 0,774 that was showed from increasing of student outcomes (pretest-posttest). This study produced teaching materials that were effective and appropriate for learning in the revolution industry 4.0 era.

THE VALIDITY TEST OF DEPRESSION SCREENING INSTRUMENT IN ADOLESCENCES

Background: The total estimates of people living with depression have increased by 2% from 2005 to 2015. Depression cases can be managed by screening for depression that has good validity. Purpose: This study aims to assess the validity of a depression screening instrument and provide suggestions for the development of depression screening programs. Methods: This study used an analytic observational study and the design study was a cross- sectional approach. The data were analyzed and presented in a descriptive manner. The sample size was 57 adolescents in senior high school. This screening used The Center for Epidemiological Studies Depression Scale (CES-D) questionnaire for instrument screening and Zung Self Depression Scale (SDS) questionnaire for gold standard. The screening was performed with interviews according to questionnaire guideline. The final screening evaluation was conducted by a psychologist. Results: The interview conducted using the screening instrument guideline gathered 47 respondents (82.46%) who have the tendency of depression and the gold standard showed 1 respondent (1.75%) who has the tendency of depression, while the prevalence based on the gold standard was 1.75%. The results of the validity test showed sensitivity 1 (100%), specifications 0.17 (17.85%), negative predictions 1 (100%), and positive predictions of 0.02 (2.12%). Conclusion: The validity result of screening instrument is not good enough. The weakness of this study is the results cannot be applied widely

MODEL PEMETAAN RISIKO KEKERINGAN DI KABUPATEN BIMA, NUSA TENGGARA BARAT

Drought in Bima regency is an annual phenomenon that always happens every year and its handling is still short-term. Therefore, there needs to be a monitoring and analysis of the drought risk factors so the drought risk mapping can be conducted to plan the drought mitigation. This research aims to develop the drought risk mapping model with Geographic Information System to find out the drought risk level in Bima regency based on the relevant variables. The drought risk model used as the basic of the research is the intersection between hazard and vulnerability, which are the basic models in disaster risk study. This research uses spatial approach with quantitative method which uses statistic indicator to measure and compare several variables. The data was collected by using institutional and literature survey. The data used was secondary data. The data analysis technique used was scoring analysis, weighting, and map overlay. The result of drought risk mapping model in Bima regency was classified into 5 classes, dominated by the Middle Class. The width of the classes consequently from the highest to the lowest are: Middle ±223.232,40 ha, Middle Lower ±136.414,29 ha, Middle High ±47.971,49 ha, Low ±10.962,28 ha dan High ± 1.776,53 ha. Then the model validation was conducted through field survey, with the validity result at 83,61%. The result shows that the modeling was good enough in analyzing the drought risk spatially. For further development, it is recommended to notice the used risk model, data using, analysis unit for each parameter, and the validation that will be used.

THE DEVELOPMENT OF CONTEXTUAL LEARNING BASED TEXTBOOK TO IMPROVE STUDENTS’ CRITICAL AND CREATIVE THINKING ABILITY OF ISLAMIC EDUCTION SUBJECT AT MAN SURABAYA

This study aimed to identify: (1) the validity of the developed contextual learning based textbook (2) practicality of the developed contextual learning based textbook (3) effectiveness of the developed contextual learning based textbook to improve students’ critical and creative thinking ability. This study used developement research design by adopting ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). This study consisted of three stages: introduction, developement, and test of effetiveness. The validity result of textbook from 36 expert’s assessment items showed that 22 items were very suitable and 14 items were suitable. The textbook practicality was seen from checklist points achievement for contextual learning based textbook. The result of gain score analysis of students 'critical thinking ability was 0.769 or categorized as high, meaning that the use of contextual learning based textbook was effective to improve students' critical thinking ability. The result of gain score analysis of students 'creative thinking ability was 0.775 or categorized as high, meaning that the use of contextual learning based textbook was effective to improve students' creative thinking ability. Keywords: Textbook, Contextual learning, Critical Thinking, Creative Thinking.

Geometry in flipbook multimedia, a role of technology to improve mathematics learning quality: the case in madiun, east java

This research is aimed to describe the process and to get product development of learning material using flipbook. The learning material is developed in geometry, especially quadrilateral. This research belongs to Research and Development (R&D). The procedure includes the steps of Budiyono Model such as conducting preliminary research, planning and developing a theoretical and prototype product, and determining product quality (validity, practicality, and effectiveness). The average assessment result of the theoretical product by the experts gets 4,54, while validity result of prototype product by the experts is 4,62. Practicability is obtained by the implementation of flipbook prototype in each meeting of limited-scale try out based on learning observation, with the average score of 4,10 and increasing of 4,50 in wide-scale try out. The effectiveness of the prototype product is obtained by the result from pretest and posttest on a limited-scale and a wide-scale try out. The limited-scale pre-test result showed a significant increase in average score of wide-scale pre-test of 25,2, and there is an increase in the average score of posttest on limited-scale try out and wide-scale try out is 8,16. The result of product quality can be concluded that flipbook media can be used in the geometry learning in elementary school which implemented curriculum 2013.

Model Kepuasan Pelanggan di PT Mediacomm Citra Perdana

To achieved customer satisfaction, therefore the performance and quality service must be employed according to the standard. PT Mediacomm Citra Perdana is a company engaged in the communication sector with focusing on advertising. Competition is inevitable for PT. Mediacomm Citra Perdana while looking prospective client and advertise its task. Work culture while also serve as tradition but also play an important role in the terms of speed, accurate and professionalism. The study of Model of Customer Satisfaction in PT Mediacomm Citra Perdana is purposely conducted for: (1) To Identify Customer Perception; (2) To analyze the Effect of Product Quality; (3) To Identify Variables that Influenced Quality Products, Services and Marketing Power (in terms of Management) by PT Mediacomm Citra Perdana. The data collected by secondary data of using survey data with Likert scale to describe the characteristics of the consumer, the service and quality of the process (frequency, mean, percentage of cross tabulation, the average scores). Multiple linear regression are also used to analyze the influence of quality attributes on customer satisfaction. The data are also used for test the validity and the reliability. The characteristics of the clients are processed with Contigency Table and Spearman Rank Correlation. The assessment of importance level and customer expectation is analyzed with Importance Performance Analysis. For overall satisfaction of customer with regards to product/service attribute analyzed with Customer Satisfaction Index (CSI). Validity result shows 14 valid attribute on reality-dimension while the other 20 is invalid on reality-dimension. On the expectation-dimensions, 23 attribute are recorded its validiy while the other 11 attribute in invalid. Correlation test shows, the three independent variables correlated with the dependent variable with a correlation coefficient > 0,4. Multiple regression shows, three independent variables explained > 50% change in the dependent variable. Customer Satisfaction Index are at level 76,84%. Based on the calculation, CSI result on 0,768 indicate the satisfaction level index are positioned in the range 0,66-0,88 which means PT. Mediacomm Citra Perdana gives excellent performance.

STRATEGI PEMASARAN EKSPORT PT GLOBAL TROPICAL SEAFOOD DALAM MENGHADAPI KOMPETISI PASAR GLOBAL

This research was aimed to identify the factors of strengths, weaknesses, opportunities, and threats in company's position for marketing strategy application, also to create the marketing strategy that applied in Global Tropical Seafood Co. (Ltd), Karawang. The analysis that use to evaluate the company's system are identified the internal factors combination (strengths and weaknesses), also external factors (opportunities and threats). All of the instruments in internal and external factors that identified, should be tested the validity and reliability. And to know the company's position for this time, SWOT analysis was used. Based on validity and reliability analysis's result, its explain that all of instruments in internal and external factors are valid and reliable to determine the export marketing strategy for fish handling crop of Global Tropical Seafood Co. (Ltd) on confident level at 95 %. SWOT's analysis result explain that for this time that the company is in first level (I quadrant), which is this position very beneficial to apply the strategy which support the growth oriented strategy. Based on the formula of SWOT's analysis strategy, so the SO's (Strengths and Opportunities) strategy that support the growth oriented strategy which is applied in Global Tropical Seafood Co. (Ltd) are raising biotechnology to increase production, developing and raising the marketing mix strategy, increasing the strength of sales team who is doing the market's expansion, increasing the relationship to cooperate with potential distributor in the export target countries, market's stimulate on fishery market which is very potential, also developing and expansion market area. Keywords: export marketing strategy, fish handling crop.Keywords: Marketing Strategy, Export, Fishery processing products

KONSUMSI PANGAN DAN GIZI SERTA SKOR POLA PANGAN HARAPAN (PPH) PADA ANAK USIA 2—6 TAHUN DI INDONESIA

This study aimed to assess food and nutrients intake, Nutrient Dietary Quality (NDQ), and Desirable Dietary Pattern (DDP) score of children aged 2—6 years.This study was carried out through analyzing a consumption data set of the National Basic Health Research (Riskesdas) 2010 were collected using 24 hour recall method. Total number 16 675 of children aged 2—6 years. The results showed that most children eat cereals (99.4%) and least eat oily seeds (1.6%). The children had deficiency of energy, fats, and water. They also had deficiency of calcium, vitamin A, vitamin B9, and vitamin C. The mean DDP score of the children was 67.1±12.9. The mean NDQ of the children was 62.4±17.1. Correlation between DDP score and each of NDQ was found 0.578—0.621 that showed moderate validity result.<br /><br />

Adaptation of Questionnaire Measuring Working Conditions and Health Problems Among Iranian Nursing Personnel

To adapt a questionnaire in the Persian language measuring working conditions and health problems among nursing personnel. A further aim was to test the validity and reliability of the questionnaire. The adapted questionnaire was based on three well-established questionnaires. Physical working conditions items were from Nurse Early Exit Study. Psychosocial working conditions scales were included from Copenhagen Psychosocial Questionnaire which contains two scales on general and mental health as well. The Nordic Musculoskeletal Questionnaire was the origin of the musculoskeletal disorders questions. During the culture adaptation process, an expert panel method was used. To achieve equivalence between the sources and target version, some changes were made by the expert panel. Then the questionnaire was examined in the field for face validity and construct validity (n=92) among Iranian nursing personnel from two hospitals. Construct validity was assessed using a priori hypothesized correlations of the outcomes with exposures. Finally the adaptation process was completed by reliability assessment using Cronbach's alpha and Intra-class Correlation Coefficient (ICC). The construct validity result was the correlation of the health outcome with the work-related exposure (physical rs=.71 and psychosocial rs=.66). In the reliability assessment, Cronbach's alpha and ICC were .60 and .70 respectively. The findings show that the adapted questionnaire has an acceptable conceptual structure and provides reliable information from the nursing profession. Consequently, the questionnaire is applicable to work situation studies among nurses and other health care workers.

Application of fuzzy DEMATEL to develop a cause and effect model of municipal solid waste management in Metro Manila

The municipal solid waste management (MSW) evaluation is usually evaluated in subjective and qualitative in nature described in linguistic information; it is very difficult for expert groups to express the preferences using exact numerical values. A MSW expert group is consulted in order to mirror how government officials might reach a cause-effect model regarding MSW management in Metro Manila. A critical issue regarding this is how the expert group can better evaluate the MSW management criteria in uncertainty. A cause and effect model development can help the processing of decision making problem. The Decision Making Trial and Evaluation Laboratory (DEMATEL) not only can convert the relations between cause and effect of criteria into a model but also can be used as a way to handle the inner dependences within a set of criteria. The post survey is further discussed and proved the validity result.

A modified bootstrap for autoregression without stationarity

In this paper, we consider a bootstrap approximation to the distribution of the least squares estimator \\ ̂ gb of the autoregressive parameter β in a first-order autoregressive process which may or may not have a stationary solution. Our bootstrap procedure is a modification of the standard bootstrap and employs a data based shrinkage towards the critical values β = ±1. The error in estimation of the sampling distribution of \\ ̂ gb by the above procedure converges to zero as the sample size grows, irrespective of the value of the autoregressive parameter. This result is in sharp contrast with the behavior of the standard bootstrap for which a random limiting distribution emerges at the critical values β = ±1, resulting in a failure of the bootstrap procedure. The asymptotic validity of our procedure enables us, inter alia, to construct a confidence interval for β which will have the correct coverage probability (asymptotically) under any real β. The theoretical validity result for the modified bootstrap is supported by appropriate simulations. Finally, we also indicate an extension of the proposed modified bootstrap method to the pth order autoregressive processes.

A cluster expansion approach to a one-dimensional Boltzmann equation: A validity result

We consider a stochastic particle system on the line and prove that, when the number of particles diverges and the probability of a collision is suitably rescaled, the system is well described by a one-dimensional Boltzmann equation. The result holds globally in time, without any smallness assumption.

The concept of irreversibility in the kinetic theory of gases

Abstract We present here a discussion of the concepts of “reversibility” and “irreversibility” of an evolution. In section 1, several reversibility concepts and the notion of an H-functional are introduced, and the relations between H-functionals and reversibility are discussed from a theoretical and, by means of examples, applied point of view. In section 2, we focus on the Boltzmann equation. After reviewing a validity result by Lanford, we suggest an explanation why the irreversibility of the equation doesn't contradict its validity. This explanation involves the weak lower semi-continuity of Boltzmann's H-functional.