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.
Written scoring |
Spoken scoring |
|---|---|
|
|
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.
Sometimes, it’s nice to share cultural insights with our students so they can get a deeper understanding of the context of the language they are learning. However, without lots of time and money, it can be tough to travel to an English-speaking country yourself and experience what life is like first-hand.
But what if you could learn about British history, customs and culture from the comfort of your sofa?
That’s right - in an instant you could be transported back to the dark cobbled streets of 19th century London, to an industrial town in northern England or a rural village in Surrey.
Today, we want to share six English stories set in Britain that provide cultural, historical and social aspects of British life, both past and present.
So sit back, relax and let us take you on an adventure.
Written by (1775-1817)
This story about the intelligent and beautiful Emma was first published at the end of 1815. The book, which takes place in a fictional village called Highbury (located in the charming county of Surrey), covers themes such as romance, social class and female empowerment.
Emma is a social person who enjoys seeing people happy and contented. She spends her time arranging marriages between her friends but sometimes makes mistakes. Will the problems she causes upset people? And can she find love herself?
Written by (1854-1900)
This philosophical yet supernatural thriller, first published in 1890, is full of lies, secrets and mystery. The tale revolves around the main character, Dorian Gray, who after inheriting a property from his grandfather, travels to London and soon makes new friends. One of his new acquaintances paints a portrait of Dorian, who makes a dangerous wish that he would give anything - even his soul - to stay as young and good-looking as he appears in the painting.
Soon, things start to go wrong and his life gets out of control. But he doesn’t seem to get older. Why? The terrible secret he’s hiding in his attic is the answer. What could it be? Allow yourself to travel back to Victorian times and see London through the eyes of this handsome and hedonistic young man.
Written by (1819-1880)
Written under Mary’s pen name,George Elliott, this work of realism was first published in eight installments during 1871 and 1872. The story, set in the fictitious Midlands town of Middlemarch from 1829-1832, tells a tale of science and discovery. It follows Dorothea, a young woman determined to change the world and Dr. Lydgate, an ambitious man who wants to be a leader in science. Dorothea and Dr. Lydgate are both married, but soon their marriages go wrong.
Can they ever be happy? Will they achieve their dreams? Although the central theme of the book revolves around the marriage of the two main characters, with many historical references such as the 1832 Reform Act, the beginnings of the railways and the death of King George IV, Middlemarch is great for those who are interested in history as well as provincial life.
Written by (born 1956)
Those looking for a more modern look at British life can learn plenty about customs and cultures in this contemporary book, which has been adapted from one of Britain’s funniest and most popular films. Released in 1994, Four Weddings and a Funeral is about Charles (played by Hugh Grant in the film), a charming man who is very unlucky in love.
One day, during his friend’s wedding, he meets a beautiful girl called Carrie. Unfortunately, she does not plan to stay in England, and travels back to the United States. But they keep meeting each other, so maybe things can work out for the couple.Laugh while discovering the ins and outs of the British social scene in this romantic comedy.
Written by (1810-1865)
North and South, published in 1855, is about a young woman named Margaret Hale who moves with her parents from rural southern England to an industrial town called Milton in the north. There, she meets a wealthy mill owner named Mr. Thornton, and though she dislikes him, he immediately falls in love with her.
During her time in Milton, she witnesses what it’s like to work in the mills where employers and workers constantly clash. As his workers go on strike, will Mr. Thornton be able to charm Margaret? This complex and provoking story follows the working class struggle during the .
Written by (1812-1870)
Published in 1832, Oliver Twist was Dickens’ second novel. The story tells the tale of a young orphan we can all feel for. Oliver is brought up in a workhouse where he is beaten, starved and poorly treated. With no parents to look after him, he decides to run away to London, where he joins a gang of thieves.
His new friends look out for him, but can they protect him from a life of danger and crime? An interesting look at the darker side of Britain’s capital, Oliver Twist is still popular today with film, musical and TV adaptations.
Want some more reading inspiration for your English lessons?
Discover graded Readers featuring some of the world’s best-loved authors.
app has Readers adapted from classic English novels with audio files and a comprehensive teacher resources section, meaning you can use them in class with your students too.
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.
