Pengembangan perangkat pembelajaran matematika dengan pendekatan CTL materi segi empat kelas VII MTs Negeri 3 Siak

The purpose of this research to describe the level validity of mathematics lesson plan by using the Contextual Teaching and Learning (CTL) Approach on Quadrangle Substance at Grade VII MTs Negeri 3 Siak which was valid test. The development model in this research used an R&D model with six stages were the researcher have modified depends on the needs and conditions with current situation now it’s covid-19 pandemic. These six stages arepotential and problems, data collection, product design, design validation, design revision and final product. The data collection technique used in this research was the validation of lesson plan, the kind of data collection instrument was the form of a validation sheet. While the data analysis technique used in the form of descriptive analysis by describing the validity of the lesson plan which was developed by the researcher. The results of this research, the RPP validation were 85.86% with very valid criteria. While the results of LKPD validation were 89.81% with very valid criteria. Based on the results of this research, it can be concluded that the development of mathematics lesson plan with a Contextual Teaching and Learning (CTL) approach on quadrangle substance at grade VII MTs Negeri 3 Siak has been suitable for the validity.

Accuracy of High-risk HPV DNA PCR, p16INK4a Immunohistochemistry or the Combination of Both to Diagnose HPV-driven Oropharyngeal Cancer

BACKGROUNDThe incidence of high-risk human papillomavirus (hrHPV)-driven head and neck squamous cell carcinoma, in particular oropharyngeal cancers (OPC), is increasing in high-resource countries. Patients with HPV-induced cancer respond better to treatment and consequently have lower case-fatality rates than patients with HPV-unrelated OPC. These considerations highlight the importance of reliable and accurate markers to diagnose truly HPV-induced OPC. METHODSThe accuracy of three possible test strategies, i.e. a) hrHPV DNA PCR (DNA), b) p16INK4a immunohistochemistry (IHC) (p16), and c) the combination of both tests (considering joint DNA and p16 positivity as positivity criterion), was analysed in tissue samples from 99 Belgian OPC patients enrolled in the HPV-AHEAD study. Presence of HPV E6*I mRNA (mRNA) was considered as the reference, indicating HPV etiology. RESULTSNinety-nine OPC patients were included, for which the positivity rates were 36.4%, 34.0% and 28.9% for DNA, p16 and mRNA, respectively. Ninety-five OPC patients had valid test results for all three tests (DNA, p16 and mRNA). Using mRNA status as the reference, DNA testing showed 100% (28/28) sensitivity, and 92.5% (62/67) specificity for the detection of HPV-driven cancer. p16 was 96.4% (27/28) sensitive and equally specific (92.5%; 62/67). The sensitivity and specificity of combined p16+DNA testing was 96.4% (27/28) and 97.0% (65/67), respectively. In this series, p16 alone and combined p16+DNA missed 1 in 28 HPV driven cancers, but p16 alone misclassified 5 in 67 non-HPV driven as positive, whereas combined testing would misclassify only 2 in 67. CONCLUSIONSSingle hrHPV DNA PCR and p16INK4a IHC are highly sensitive but less specific than using combined testing to diagnose HPV-driven OPC patients. Since HPV-driven OPC cancer can be treated less aggressively, combined testing can reduce treatment sequelae at the expense of a small number of patients that may receive less effective therapy.

Helpdesk Ticketing Information System Based on Android at Communication and Information Department of Badung Regency

In the operational activities of Diskominfo at Badung Regency, there are often reports of service problems every day. Currently, the reporting of these problems is still done in person via telephone or short message, which affects the speed of handling the report. The complaint system is a solution to problems related to reporting and handling of these service problems. In this study, a mobile application-based complaint system will be developed for the client-side to make it easier for clients to report or respond to reports and for the server-side, it will be developed on a web-based basis to still facilitate the management of complaint data. This study uses Data Flow Diagrams to model the process and Entity Relationship Diagrams to model its database. The evaluation process is carried out using the black box testing method and usability evaluation using SEQ and SUS. The system that has been successfully developed is able to carry out the main processes related to adding reports, viewing report progress, verifying reports, following up on reports, and changing report status. Testing using the black box testing method on 7 test classes with 74 test scenarios to get 74 valid test scenarios. Testing the installation and use of applications on 3 types of smartphones has also been successfully carried out without any problems. Usability testing on users using SEQ gets a middle value of 6 (for Administrator and IT Staff) and 7 (for Verification), which shows that the application developed is easy to use by the user, with the results of the SUS the questionnaire, the user shows that the application is in the Excellent class with an average value obtained from 15 respondents of 80.5.

UCancellation: A New Mobile Measure of Selective Attention

Measuring selective attention in a speeded task can provide valuable insight into the current concentration ability of an individual, and can inform neuropsychological assessment of attention in aging, traumatic brain injury, and in various psychiatric disorders. There are few tools to measure selective attention that are freely available, psychometrically validated and can be used flexibly both for in-person and remote assessment. To address this gap, we developed a self-administrable, mobile-based test of selective attention, psychomotor speed, and inhibitory control called ‘UCancellation’ (University of California Cancellation) with two stimulus sets: Letters and Pictures. UCancellation takes less than 7 minutes to complete, is automatically scored, allows for multiple testing sessions, and is compatible with a variety of IOS and Android devices. Here we report the results of a study that examined 1-week retest reliability and convergent validity of UCancellation in a sample of 104 college students. UCancellation Letters and Pictures showed adequate retest reliability (r=.71-.83, p<0.01) and internal consistency (ɑ=.73-.91). It also showed convergent validity with another widely used cancellation task, D2 Test of Attention (r =.43-.59, p<0.01), and predicted performance on a cognitive control composite (r = .34-.41, p<0.05). These results suggest that UCancellation is a valid test of selective attention and inhibitory control, which warrants further data collection to establish norms.

A-178 Might Tip-of-the-Tongue Responses on the Auditory and Visual Naming Test be a Useful Embedded Performance Validity Measure in the Language Domain?

Objective This study examined whether responses on the Auditory and Visual Naming Test (ANT/VNT) would discriminate between veterans with invalid and valid test performance, thus suggesting a novel embedded performance validity test (PVT) for a language task. Method Veterans who completed the ANT/VNT and failed two or more PVTs were selected for inclusion, resulting in a sample of 9 veterans (8 males; Mage = 55.8, SD = 11.5; Medu = 12.7, SD = 2.1). An age-and education-matched group of 9 cognitively unimpaired veterans who passed PVTs (7 males; Mage = 56.1, SD = 11.5; Medu = 14.0, SD = 2.4) were selected from a database of patients from the same clinical setting. Variables of interest included tip-of-the-tongue (TOT) responses (responses with a latency between 2 and 20 seconds) and Total Correct responses for the ANT/VNT. Results Groups were comparable on demographic characteristics and there were no statistical differences in Total Correct responses on ANT/VNT. The invalid group had more TOT on both the visual (M = 4.2, SD = 3.8) and auditory (M = 14.4,SD = 9.7) tasks, as compared to the valid group (Mvisual = 0.7, SD = 0.7; Mauditory = 4.9,SD = 2.7). ROC curve analysis for detecting invalid performance was significant for both VNT-TOT (AUC = 0.79, p = 0.038) and ANT-TOT (AUC = 0.88, p = 0.006). A cutoff of 1 was optimal for VNT-TOT (sensitivity = 0.67, specificity = 0.89), while 6 was optimal for ANT-TOT (sensitivity = 0.89, specificity = 0.89). Conclusions Despite the small sample size, findings are promising regarding the utility of ANT/VNT TOT responses as embedded PVTs. These should be further explored since the field is in need of validity measures embedded within language/naming tasks. Visual Naming Test may be particularly useful given that it can take less than 5 minutes to administer.

Criterion-Related Validity of Field-Based Fitness Tests in Adults: A Systematic Review

We comprehensively assessed the criterion-related validity of existing field-based fitness tests used to indicate adult health (19–64 years, with no known pathologies). The medical electronic databases MEDLINE (via PubMed) and Web of Science (all databases) were screened for studies published up to July 2020. Each original study’s methodological quality was classified as high, low and very low, according to the number of participants, the description of the study population, statistical analysis and systematic reviews which were appraised via the AMSTAR rating scale. Three evidence levels were constructed (strong, moderate and limited evidence) according to the number of studies and the consistency of the findings. We identified 101 original studies (50 of high quality) and five systematic reviews examining the criterion-related validity of field-based fitness tests in adults. Strong evidence indicated that the 20 m shuttle run, 1.5-mile, 12 min run/walk, YMCA step, 2 km walk and 6 min walk test are valid for estimating cardiorespiratory fitness; the handgrip strength test is valid for assessing hand maximal isometric strength; and the Biering–Sørensen test to evaluate the endurance strength of hip and back muscles; however, the sit-and reach test, and its different versions, and the toe-to-touch test are not valid for assessing hamstring and lower back flexibility. We found moderate evidence supporting that the 20 m square shuttle run test is a valid test for estimating cardiorespiratory fitness. Other field-based fitness tests presented limited evidence, mainly due to few studies. We developed an evidence-based proposal of the most valid field-based fitness tests in healthy adults aged 19–64 years old.

Prepositional Phrases in English as Phases of the Weak Kind

A phase is an instance of derivation or “spell out’’ of a chunk or whole of a sentence construction. It is standardly assumed that only complementizer phrases and little v(erb) phrases are phases, and tense and verb phrases are not phases. Other categories such as determiner phrases and applicative phrases have been tested positive for phases. However, no claim is made about the status of prepositional phrases as phases. This paper investigated whether prepositional phrases in English can have the status of a phase as defined in phase theory. It was hypothesised that prepositional phrases are phases of the ‘weak’ kind. To determine the phase status of prepositional phrases, the method of standard phase diagnostics tests such as computational complexity, phonological independence, semantic independence, and case checking, and theta completeness were used. It was found out that computational complexity is not a valid test to test prepositional phrases for phasehood. While prepositional phrases bear very strong evidence to be labelled phases with respect to phonological independence, PPs fail to be phases in the case of semantic independence, and case checking and theta completeness. Given these findings, it was concluded that prepositional phrases in English are phases of the ‘weak’ kind. A sample of sentence constructions in English selected by the author and borrowed from the existing literature were used for the tests to draw conclusions. The study is expected to help better understand and analyze the cognitive processes involved in the acquisition and production of the English language specifically and any language in general.

Mathematical Thinking Styles—The Advantage of Analytic Thinkers When Learning Mathematics

School is a space where learning mathematics should be accompanied by the student’s preferences; however, its valuation in the classroom is not necessarily the same. From a quantitative approach, we ask from the mathematical thinking styles (MTS) theory about the correlations between preferences of certain MTS and mathematical performance. For this, a valid test instrument and a sample of 275 16-year-old Chilean students were used to gain insight into their preferences, beliefs and emotions when solving mathematical tasks and when learning mathematics. The results show, among other things, a clear positive correlation between mathematical performance and analytical thinking style, and also evidence the correlation between self-efficacy, analytical thinking and grades. It is concluded that students who prefer the analytical style are more advantageous in school, since the evaluation processes have a higher valuation of analytic mathematical thinking.