Explaining computerized English testing in plain English

app Languages
a pair of hands typing at a laptop

Research has shown that automated scoring can give more reliable and objective results than human examiners when evaluating a persons 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 takers 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 C no matter who the test-taker is or where the test is taken.

Development and validation of the scoring system to ensure accuracy

PTE Academics 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 Apples 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 C 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 apps system and a human rater is less than that between one human rater and another C 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 apps Ordinate technology

The spoken portion of PTE Academic is automatically scored using apps 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 apps 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

More blogs from app

  • Expressing love around the world: Interesting facts and how to say "I love you" in different languages

    By Sam Colley
    Reading time: 5 minutes

    Love is a universal language that transcends borders, cultures and languages. For those learning another language, understanding how to express love in various tongues can be both fascinating and useful. Whether you're planning to travel, connect with friends from different backgrounds, or simply expand your linguistic repertoire, knowing how to say "I love you" in different languages as well as the cultural context, can be a beautiful way to show appreciation and affection. Let's take a look at some of the many ways to express this timeless sentiment and some interesting facts.

    1. Cultural nuances:

    In many cultures, the way you express love can carry different weights and meanings. For example, in Japanese, "ۤƤ" (aishiteru) is a very strong expression of love, often reserved for serious relationships, whereas "ä" (daisuki) is more commonly used among friends and family.
    However, French, often called the language of love, uses "je t'aime" to express love as a romantic phrase that can be used for both partners and close family members.

    2. Gender differences:

    Some languages have gender-specific ways of saying "I love you." For instance, in Arabic, "????" (a?ibbuka) is used when a woman says "I love you" to a man, and "????" (a?ibbuki) is used when a man says it to a woman. Similarly, in Hindi, men say "??? ????? ????? ???? ???" (main tumse pyaar karta hoon) and women say "??? ????? ????? ???? ???" (main tumse pyaar karti hoon).

    3. Formal vs. informal:

    Some languages have formal and informal ways of expressing love. In Spanish, "te amo" is more formal and used for romantic love, while "te quiero" is more casual and can be used for friends and family.
    ?

  • A teacher sat at the front of the class holding a book reading it to a class of young children who are sat on the floor

    Romantic Readers and classroom ideas to celebrate Valentines day

    By Iram Ahmed
    Reading time: 3 minutes

    Love is in the air on February 14th, with hearts, red roses and boxes of chocolates everywhere. Were all set for the big day, and to help you prepare as well, here are six of our favorite love stories for learners of all ages and levels. There are also plenty of fun ideas for your classroom.

    1.?Cinderella?(Level 1)

    Poor Cinderella lives with her stepmother and two horrible stepsisters. They treat her badly, making her cook and clean, while they relax and wear beautiful clothes. However, one night, Cinderella gets the chance to sneak away and attend a fabulous ball. She meets a handsome princebut must run away before he discovers her true identity. With only a glass shoe to help him, will the prince ever find Cinderella?

    How to use this Reader in class:

    Its no surprise that the story has a happy ending. After reading the story, have the learners draw a picture and write about Cinderellas new life in the castle, with her loving new family.

    2.?Lady and the Tramp?(Level 3)

    This classic Disney story tells the tale of two young dogs who come from different backgrounds. Lady lives in a house while Tramp lives on the street. However, one day, Lady is forced to leave the house and the life she knows. Tramp teaches her about life on the streets and the two dogs fall in love but with the dog-catcher always chasing them, will the story have a happy ending?

    How to use this reader in class:

    After reading the story, why not watch the animated version with your students? They can choose their favorite character from the movie and write a description of them.

    Looking for more romantic Readers for young learners? How about?The Little Mermaid?(Level 2) or?Aladdin?(Level 5)? Theres something for everyone?in our catalog.

    3.?Pirates of the Caribbean: The Curse of the Black Pearl?(Level 2)

    If your teenagers are looking for more adventure than romance, this Reader has both. Follow crazy Jack Sparrow, handsome Will and brave Elizabeth as they fight pirates and uncover the curse of the Black Pearl. But will Elizabeth and Will survive the dangerous life on the seven seas?

    How to use this Reader in class:

    After reading the story, why not ask your students to write a review of it? Its a great way for them to summarize the plot and share their opinion.

    4.?Pride and Prejudice?(Level 5)

    A timeless classic,?Pride and Prejudice?tells the story of young Elizabeth Bennett. As the oldest daughters in a family of five, she and her sister Jane are both expected to find good husbands and marry soon. But will Elizabeth find love, or will no man be good enough for her?

    How to use this Reader in class:

    While reading the story, learners can keep a diary, writing entries in the voice of Elizabeth Bennett. This helps them to demonstrate their understanding of the novel and encourages them to have a more empathetic reaction to the storys heroine. They can either write the diary entries using typical language from Jane Austens day, or updating it to more modern language.

    Heres an example:

    I had the pleasure of meeting Mr Darcy today and found him rather rude and reserved. I imagine he feels this country life is inferior and that the locals are uncultured simpletons!

    or

    Met Mr Darcy today C what a stuck-up dork! He just stood there, looking down his nose at everyone you can see he thinks hes better than us locals.

    If you think your teenage learners would enjoy a different modern or classic tale of romance, check out our readers?. There are plenty to choose from, including?Romeo and Juliet?(Level 3),?Love Actually?(Level 4) and?Madame Bovary?(Level 6).

    5.?Tales from the Arabian Nights?(Level 2)?

    What would you do if you needed to fascinate a king to save your life? This is the problem Sheherezade faces when she marries a king who has killed all his previous wives. So she tells her new husband exciting, mesmerizing stories every night and always ends the tale with the king wanting to hear more. She tells him stories of adventure, love and mystery and you can read her stories too in this Level 2 Reader.

    How to use this reader in class:

    After reading the book, have students vote on their favorite story from Sheherezade. They can then work in groups to present a short play of one of the stories, working together to write a short script.

    6.?Wuthering Heights?(Level 5)?

    Unfortunately, the path of true love isnt always easy. Set in 19th Century Yorkshire, this tragic romance follows the story of Catherine and Heathcliff. The two childhood friends grow up together very closely. However, although she loves him deeply, Catherine cant marry Heathcliff because of his lower social status. Instead, she marries another man, Edgar. How will Heathcliff react to this news? Will Catherine and Edgar be happy together?

    How to use this reader in class:

    At one point in?Wuthering Heights, Heathcliff runs away from home because he thinks Catherine is embarrassed by him and doesnt love him. Have the learners write a letter from Catherine to Heathcliff at that point, expressing her regrets about why they cant be together. It provides students with the opportunity to use phrases such as?If only,?I wish?and?I should have?whilst demonstrating their understanding of the novel so far.

    If Yorkshire moors and Arabian nights arent quite what your students are looking for, there are more tales of romance on our site. Choose from modern-day love stories such as?Notting Hill?(Level 3) and?Lisa in London?(Level 1) or classics like?Anna Karenina?(Level 6) and?Persuasion?(Level 2).

    If you enjoyed this post here are some more practical posts to get your students engaged in reading, 'How to bring Shakespeare to life in the classroom'?and 'How to motivate reluctant readers'.

  • Two people playing video games on the sofa together

    How video games help language learning

    By
    Reading time: 6 minutes

    The evolution of video games and global connectivity

    Video games have come a long way since their inception in the late 20th century. From the simple pixelated screens of 'Pong' and 'Space Invaders', we've entered an era where video games are complex, immersive and incredibly detailed. The evolution of video games has not only been technological but also cultural.

    With the rise of the internet and online gaming, players from different corners of the world can now connect, collaborate and compete in real-time. This global connectivity has transformed video games into a social platform, where language barriers are often encountered and interestingly, overcome.