No abstract

One of the computer-based testing is the Computerized Adaptive Test (CAT), which is a computer-based testing system where the items were given to the participants adapted to test the ability of the participants. Assessment methods are usually applied in CAT is Item Response Theory (IRT). IRT models are most commonly used today is the model 3 Parameter Logistic (3PL), which is about the discrimination, difficulty and guessing. However 3PL IRT models have not provided information more objectively test the ability of participants. The opinion of the test participants were tested items were also to be considered. In this study using CAT in combination with IRT model of 4PL.In this research, the development of CAT which uses about 4 parameters, namely the discrimination, difficulty, guessing and questionnaires. The questions used were about UAS 1 English subjects. Samples were taken from 40 students answer with the best value of the total 172 students spread across 6 classes to measure the parameter estimation problem. Further testing using CAT application 4PL IRT models compared to CAT 3PL IRT models.From research done shows that the CAT application combined with IRT models 4PL can measure the ability of the test taker shorter or faster and also opportunities participants correctly answered the test items was done tend to be better than the 3PL IRT models. Keywords : Ability, CAT, IRT, 3PL, 4PL, Probability, TestÂ

Penelitian ini bertujuan untuk menginvestigasi pengaruh promosi dan inovasi produk terhadap keputusan pembelian mobil Toyota Avanza pada Auto 2000 Veteran Palembang. Data dikumpulkan melalui observasi dan kuesioner pada 38 responden. Studi ini menggunakan metode analisis regresi linier berganda. Hasil investigasi membuktikan bahwa secara parsial, baik promosi maupun inovasi produk berpengaruh signifikan terhadap keputusan pembelian. Secara simultan, promosi dan inovasi produk berpengaruh signifikan terhadap keputusan pembelian. Berdasarkan hasil analisis ini, produsen mobil Toyota Avanza sebaiknya menguatkan promosi dan meningkatkan kemampuan berinovasi untuk menambah penjualan. This study aims to investigate the effect of promotion and product innovation on purchasing decisions for a Toyota Avanza at Auto 2000 Veteran Palembang. Data were collected through observation and questionnaires to 38 respondents. This study uses multiple linear regression analysis. The results of the investigation prove that partially, both promotion and product innovation have a significant effect on purchasing decisions. Simultaneously, promotion and product innovation have a significant effect on purchasing decisions. Based on the results of this analysis, the Toyota Avanza car manufacturer should strengthen promotions and increase the ability to innovate to increase sales.

This research is focused on the influence of public relations activities (PublicRelations-PR) through the use of the internet (Cyber ??PR) to brand awarenessa private college. The purpose of this research is to find outhow the influence of cyber PR activities carried out by the University Public RelationsSumbawa Technology (UTS) through social media such as Facebook, Youtube andInstagram towards increasing UTS brand awareness. ResearchThis method uses quantitative methods with SPSS structural equation modeling (SEM)to compile a model of research results. The sample population used inThis research is the community of Sumbawa sub-district with the age criteria 15-29year in which 124 respondents filled out a questionnaire as a representation of 16,770 peoplethe people of Sumbawa for that age category. From the results of the F test there is an influencesimultaneous between independent variables (Facebook, Instagram and Youtube variables)to the dependent variable (Brand Awareness). Meanwhile, the results of the t test are obtainedthat the Instagram variable has a significant influence onincrease in UTS campus brand awareness.