Explaining computerized English testing in plain English

app Languages
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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.

Development and validation of the scoring system to ensure accuracy

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.

Scoring speaking responses with app’s Ordinate technology

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.

Scoring writing responses with Intelligent Essay Assessor™ (IEA)

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.

What aspects of English does PTE Academic assess?

Written scoring

Spoken scoring
  • Word choice
  • Grammar and mechanics
  • Progression of ideas
  • Organization
  • Style, tone
  • Paragraph structure
  • Development, coherence
  • Point of view
  • Task completion
  • Sentence mastery
  • Content
  • Vocabulary
  • Accuracy
  • Pronunciation
  • Intonation
  • Fluency
  • Expressiveness
  • Pragmatics

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    In today's world, where global communication is not just a luxury but a necessity, having a strong grasp of language learning is essential for expanding horizons. As an educator, being part of a supportive community can enhance your teaching experience and improve results. That's where Learners' Voice comes in – not only as a platform but also as a lively community where learners and educators come together to innovate and excel in the field of language mastery.

    Understanding the complexities of language acquisition and changes in teaching methodologies is crucial for success in the education industry. Joining Learners' Voice can be a significant step forward. This post will guide you through this program, how to join, and how becoming part of the Learners' Voice community can enrich your language learning and teaching experience.

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    Learners' Voice is more than just an online community – it's a movement to foster collective knowledge sharing and growth in language learning and teaching. Imagine a digital space that brings together language enthusiasts from diverse backgrounds – students, teachers, language professionals and academics – all united by their passion for mastering and imparting linguistic skills. Participation in Learners' Voice isn't just about passive engagement; it's an active alliance towards the progressive development of language educational practices.

    Participants – who can join?

    We're seeking passionate individuals who are ready to contribute to and learn from a global community dedicated to language learning. Participants include:

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    What Learners' Voice members do

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    Joining Learners' Voiceisn't limited to the virtual realm; it's a tangible commitment to advancing your language learning or teaching abilities. Here's how the program can become an integral part of your linguistic journey.

    The Learners' Voice experience – what's in it for you?

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    Joining Learners' Voice is simple and rewarding, with just a few clicks standing between you and a robust platform for growth in language education.

    Start by accessing the community

    Visit our portal or scan the QR codes provided to access the 'Join Learners' Voice' link. The process is quick and you'll be welcomed into a world of like-minded peers passionate about languages. Learners can and Educators .

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    Once you're part of the community, share your experiences and encourage your colleagues, friends and social networks to join. The more voices we have, the richer the dialogue and the stronger our collective learning experience.

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    In conclusion, Learners' Voice is an innovative platform that puts the power of learning and teaching back into the hands of the community. For those dedicated to the mastery of languages, this isn't just a community – it's an indispensable tool that can enhance your skill set, broaden your educational horizons, and even offer the chance to shape the future of language education.

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