Research has shown that automated scoring can give more reliable and objective results than human examiners when evaluating a person’s mastery of English. This is because an automated scoring system is impartial, unlike humans, who can be influenced by irrelevant factors such as a test taker’s appearance or body language. Additionally, automated scoring treats regional accents equally, unlike human examiners who may favor accents they are more familiar with. Automated scoring also allows individual features of a spoken or written test question response to be analyzed independent of one another, so that a weakness in one area of language does not affect the scoring of other areas.
was created in response to the demand for a more accurate, objective, secure and relevant test of English. Our automated scoring system is a central feature of the test, and vital to ensuring the delivery of accurate, objective and relevant results – no matter who the test-taker is or where the test is taken.
PTE Academic’s automated scoring system was developed after extensive research and field testing. A prototype test was developed and administered to a sample of more than 10,000 test takers from 158 different countries, speaking 126 different native languages. This data was collected and used to train the automated scoring engines for both the written and spoken PTE Academic items.
To do this, multiple trained human markers assess each answer. Those results are used as the training material for machine learning algorithms, similar to those used by systems like Google Search or Apple’s Siri. The model makes initial guesses as to the scores each response should get, then consults the actual scores to see well how it did, adjusts itself in a few directions, then goes through the training set over and over again, adjusting and improving until it arrives at a maximally correct solution – a solution that ideally gets very close to predicting the set of human ratings.
Once trained up and performing at a high level, this model is used as a marking algorithm, able to score new responses just like human markers would. Correlations between scores given by this system and trained human markers are quite high. The standard error of measurement between 色猫AV’s system and a human rater is less than that between one human rater and another – in other words, the machine scores are more accurate than those given by a pair of human raters, because much of the bias and unreliability has been squeezed out of them. In general, you can think of a machine scoring system as one that takes the best stuff out of human ratings, then acts like an idealized human marker.
色猫AV conducts scoring validation studies to ensure that the machine scores are consistently comparable to ratings given by skilled human raters. Here, a new set of test-taker responses (never seen by the machine) are scored by both human raters and by the automated scoring system. Research has demonstrated that the automated scoring technology underlying PTE Academic produces scores comparable to those obtained from careful human experts. This means that the automated system “acts” like a human rater when assessing test takers’ language skills, but does so with a machine's precision, consistency and objectivity.
The spoken portion of PTE Academic is automatically scored using 色猫AV’s Ordinate technology. Ordinate technology results from years of research in speech recognition, statistical modeling, linguistics and testing theory. The technology uses a proprietary speech processing system that is specifically designed to analyze and automatically score speech from fluent and second-language English speakers. The Ordinate scoring system collects hundreds of pieces of information from the test takers’ spoken responses in addition to just the words, such as pace, timing and rhythm, as well as the power of their voice, emphasis, intonation and accuracy of pronunciation. It is trained to recognize even somewhat mispronounced words, and quickly evaluates the content, relevance and coherence of the response. In particular, the meaning of the spoken response is evaluated, making it possible for these models to assess whether or not what was said deserves a high score.
The written portion of PTE Academic is scored using the Intelligent Essay Assessor? (IEA), an automated scoring tool powered by 色猫AV’s state-of-the-art Knowledge Analysis Technologies? (KAT) engine. Based on more than 20 years of research and development, the KAT engine automatically evaluates the meaning of text, such as an essay written by a student in response to a particular prompt. The KAT engine evaluates writing as accurately as skilled human raters using a proprietary application of the mathematical approach known as Latent Semantic Analysis (LSA). LSA evaluates the meaning of language by analyzing large bodies of relevant text and their meanings. Therefore, using LSA, the KAT engine can understand the meaning of text much like a human.
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In the fast-paced world of business, there is one undeniable fact that holds true: employees are the key to success. Their commitment and expertise propel organizations towards their objectives, which is why investing in a learning culture is essential. The advantages are numerous and include improved staff retention, increased productivity and the goal of higher employee engagement.
Language is not only a tool for communication but also a means to explore and comprehend diverse cultures, traditions, and perspectives. Europe, with its vast array of languages, is a prime example of this linguistic diversity. Each year on September 26th, Europe observes the European Day of Languages, which is a day solely dedicated to celebrating and embracing this linguistic richness.
Europe is a magnificent tapestry of languages, with over 200 spoken throughout the continent. This diversity is a symbol of the rich cultural heritage of each nation and reminds us of the intricate historical, social, and linguistic elements that mold our identities. The European Day of Languages inspires people to cherish and honor this linguistic heritage.
September 26th marks an important date for celebrating linguistic diversity and promoting multilingualism. This day commemorates the adoption of the "European Charter for Regional or Minority Languages" by the Council of Europe in 1992, a crucial document that recognizes and safeguards the linguistic rights of minority languages spoken within European countries. By celebrating the European Day of Languages on this date, it renews our commitment to supporting the rich diversity of languages and cultures that make our world a more vibrant and fascinating place.
The European Day of Languages offers language learners a chance to participate in language exchanges, which is an exciting opportunity. During such exchanges, learners from diverse backgrounds partner up and teach each other their native languages. This not only helps improve language skills but also promotes intercultural understanding.
Various European cities offer language workshops led by enthusiasts and experts, providing an introduction to different languages.
Storytelling is an incredibly effective tool for learning languages. Libraries, schools, and cultural centers hold multilingual storytelling sessions, where stories from different cultures are shared in their original languages. This helps both children and adults to better understand and appreciate the beauty of linguistic diversity.
Cinema provides a wonderful opportunity to explore different languages and cultures. Throughout Europe, foreign films are often shown with subtitles, enabling viewers to fully immerse themselves in new linguistic worlds.
Museums often showcase exhibitions highlighting the linguistic and cultural heritage of various regions, providing insight into the history and traditions of different languages.
Cafés and restaurants might offer special menus featuring diverse cuisines and multilingual staff – a delightfully tasty way to explore languages and cultures.
Language-based games and competitions, such as crossword puzzles and spelling bees, are organized in schools and communities to provide a fun and educational way to celebrate language.
If you are a teacher hoping to celebrate this occasion make sure to on what to do.
Check out .
Just like the European day of Languages, we at 色猫AV Languages are fully committed to empowering and celebrating language learners and educators alike. That's why we are now supporting French, Italian, and Spanish language learning with the Global Scale of Languages (GSL). With these new language learning frameworks at your fingertips, you can confidently design curriculums and personalize learning pathways to help fast-track your learners’ progress and help your learners be themselves in French, Italian and Spanish.
Whether you're a teacher, a language learner, or simply someone who appreciates the beauty of languages, the European Day of Languages and the GSL provide exciting opportunities to explore, learn, and enjoy the rich tapestry of Europe's linguistic heritage.
