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 app’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.
app 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 app’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 app’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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As the holiday season approaches, learners often struggle to stay motivated and focused on their studies amidst the festive cheer and distractions. It's easy to get caught up in the excitement of the holidays, but maintaining consistency in language learning is crucial for making progress. To help you stay on track during this joyful yet potentially distracting time, here are some effective strategies and tips to keep things going.
As December approaches, people around the world prepare for the festive season as the chilly winds of winter set in. Amidst the various traditions and celebrations, one particular festivity is Nikolaustag. This day is dedicated to Saint Nicholas and is predominantly celebrated in German-speaking regions.
Nikolaustag, celebrated on 6 December, in ode to Saint Nicholas, a Bishop in Myra in the 4th century. He was known for his kindness and generosity.
In Germany and neighboring countries this day is celebrated with various customs. Children clean and polish their shoes or place them outside their doors, hoping to receive gifts and treats from Saint Nicholas. Adults, on the other hand, enjoy festive markets filled with seasonal delights.
This day is a reminder of the importance of kindness, compassion and generosity towards others, especially those who are less fortunate. It is a time to come together with family and friends, exchange gifts and enjoy the warmth and joy of the holiday season.
The German language, celebrated for its precision and rich literary heritage, holds a significant place in the global linguistic landscape beyond the festivities of Nikolaustag.
German is an official language in Germany, Austria, Switzerland, Luxembourg, Liechtenstein and certain communities worldwide due to historical migrations and cultural exchanges.
In recent years there has been a noticeable surge in the popularity of learning German worldwide. In 2020 it was reported that were learning German.
The importance of the language in various sectors, including technology, science and commerce, has contributed to its popularity. Germany provides abundant opportunities for German language exchanges through institutions such as the and .
German has significantly impacted intellectual debates and discussions worldwide, spanning various fields such as literature, philosophy, music and science. The works of great writers like and , influential artists like and , and the philosophies of and are some examples of the profound influence of German culture.
German language and culture have played a significant role in shaping scientific research and development. Many renowned scientists, such as and , have made notable contributions in their respective fields. German has also been a prominent language in academia, with numerous universities worldwide offering German language courses and conducting research in various fields.
The undeniable impact of German culture on the world continues to inspire and influence various aspects of modern life.
Learning languages such as German not only provides personal and professional growth opportunities but also promotes cross-cultural understanding and respect.
And if you needed another reason to pick up German, the Global Scale of Languages (GSL) has added German to its list of languages. This gives German-language educators and learners a highly detailed level of support to fast-track their progress on their journey to fluency in German.
The GSL uses the same proven learning design principles for German as it does for its other languages (English, French, Italian and Spanish), giving you world-class support.
With the holiday season approaching, it’s good to add some fun into teaching to keep your students engaged and motivated. We’ve created 12 simple classroom activities and tips that you can carry out with your primary class to encourage them to be good.
