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 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

More blogs from app

  • A child running with a rugby ball outside, with children behind them

    How can gaming support language learning?

    Por Jacqueline Martin

    Reading time: 5 minutes

    Academics and teachers have been writing about the benefits of using games in the language classroom for many years. Wright et al (1984), Lee Su Kim (1995), Ubermann (1998), Ersoz (2000), Yong Mei and Yu-Jin (2000) and Thi Thanh Huyen and Khuat Thi Thu Nga (2003) all pretty much agreed that games provide a useful and meaningful context for language use; encourage students to interact and communicate; can both challenge and reduce anxiety (as the emphasis is on the message, not the form); provide practice in all four skills; and help students to make and sustain the significant effort involved in learning a language.

    Kim and others have also noted that games can offer a welcome break from the usual routine of the language class. Playing a game after an intensive test or with over-excited students after break time can help re-engage learners instantly in your lesson, and you'll maximize your time with them.

    Lengeling and Malarcher (1997) took the list of potential benefits of games in the classroom even further.

    Affective

    • Games lower the affective filter
    • They encourage the creative and spontaneous use of language
    • They promote communicative competence
    • Games are both motivating and fun

    Cognitive

    • Games reinforce learning
    • They both review and extend learning
    • Games focus on grammar in a communicative manner

    Class dynamics

    • Games are extremely student-centered
    • The teacher acts only as a facilitator
    • Games build class cohesion
    • They can foster whole-class participation
    • Games promote healthy competition

    Adaptability

    • Games can be easily adjusted for age, level and interests
    • They utilize all four skills
    • Games require minimum preparation after the initial development stage

    It is important to bear in mind that when the above was written over 20 years ago, it was with reference mostly to more traditional games. But more recent evidence seems to indicate that the same principles apply. Some additional benefits cited by teachers I've spoken to are that:

    • Games could make language lessons less threatening for less confident pupils as their concern about getting sentence form wrong was reduced, and so their production greater.
    • Students learn more than just the language of the lesson when playing a game; they may learn instructional language through discussion or rules and sometimes negotiation skills and a lesson in cultural differences too.
    • Students can form a greater variety of emotional connections with language through playing games, for example acting out a word or seeing another student do so, or remembering a clue for a word.

    So, playing games can help students learn a language – but is just playing them enough? Some teachers like using games with less motivated classes who won't engage with straight practice activities and will willingly use key vocabulary and structures in a game, gaining much-needed practice without even realizing it. In today's language-learning context, though, is that a good thing?

    Motivating the unmotivated

    In recent years, much research has shown that students learn better when the intention or objective of the lesson is clear to them. In short, they understand what they're supposed to be learning and why and, when taking it to the next level, can assess their own learning and be actively involved in planning their next steps.

    Would knowing that the games they play are actually a way of doing some additional language practice make these students engage less? Opinion differs, and some discussion seems to center around the actual activity involved. Some games are thinly veiled group-work tasks, but other games that are at the right proficiency level (or slightly above) and take into account factors like cultural context, available time, learning topic and the classroom setting are generally considered to have a positive impact.

    Another major influence on improving motivation is the feedback a student receives, and this is something games can also support. Online games can provide richer simulated learning experiences and immediate feedback to students in a variety of ways.

    Above all, the main issue for the less motivated students is usually that they can't see why they need to learn English. Playing games not only simulates 'real' contexts but also helps them understand that they can accomplish a variety of tasks using English as a medium, which is motivational in itself.

    As teachers, there is a responsibility to explain how or why games will help students learn. This can equally motivate learners (or parents) who fear that playing games is just frivolous time-wasting. For example, informing even adult students that a simple hangman or hot seat game helps them improve spelling skills, gets their brains focused on recognizing the shape and structure of new words, and facilitates their learning of new vocabulary soon helps them see the value (Simpson 2011).

    Can games help learners acquire 21st-century skills?

    Maybe we can draw the conclusion that games can positively impact learning – but is that even enough? Today's teachers have to ensure not just that their students learn but that they acquire the skills they need for life and jobs in the 21st century. Can games help here too? This is a newer area of research, but evidence seems to indicate that games can help students learn a variety of important skills such as critical thinking skills, creativity, teamwork and good sportsmanship.

    These ideas were taken seriously by Robert Morris University Illinois, who offered an e-sports scholarship for the first time in 2014. They studied two groups of students – football players and gamers – and found that levels of competitiveness, perseverance, focus and determination were very similar. Both groups showed a similar desire to excel as part of a team. Both 'sports' required the team members to be detail-orientated, have good hand-eye coordination and have a strategic mind. The only difference was in the level of cardiovascular activity. Both groups received performance analysis and tactical advice from coaches and both subsequently made improvements.

    How many universities will start to offer these types of programs remains to be seen. Still, the idea that online competitive gaming can improve performance is being brought to the workplace too. Think about what virtual teams could learn from playing role-based collaborative games. Team members have set roles and clear and shared goals and have to work closely together to formulate an action plan to achieve them. Teamwork, skill, strategic thinking and communication are essential.

    All these are important skills for today's workplace, so maybe gaming can provide an opportunity to hone these in a lower-risk environment and improve business performance.

    These examples are clearly far from the norm, but they do seem to indicate that using gaming to support learning in the classroom is not a waste of time. When you get the right mix of gaming and learning, it develops a student's autonomous learning skills and encourages them to spend more time on task – both of which greatly impact learner outcomes.

  • A woman smiling with a backpack stood outside in a cobbled square with many people in the background

    Language learning tips for international students

    Por app Languages

    Reading time: 4 minutes

    Are you studying abroad (or soon to be), learning a new language and need some inspiration on ways to practice your language skills in the real world? Don't worry. It can be daunting to know how to begin, especially in an unfamiliar place, However, with a little bit of effort and following these useful tips, you will be able to improve your language skills and make the most of your study abroad experience.

  • two colleagues working outdoors talking to eachother over a laptop and paperwork

    The role of English proficiency in a global organization

    Por Samantha Ball
    Reading time: 4 minutes

    To compete in the modern business space, many organizations are shifting to a more global way of working.

    The COVID-19 pandemic accelerated digital transformation and globalization across industries but, as many businesses look now to sustaining future growth, the question is: what powers a successful, global organization?

    Why English proficiency is key to unlocking international success

    According to app’s 2022 Power Skills Survey, one of the biggest factors in effective workplace globalization is the use of English as a common language. The report states “Adopting a common language and ensuring that the entire workforce can access it has become more important than ever before.”

    It points to statistics from rising economies in Southeast Asia, showcasing the strength of English use and their respective booming industries:

    • In Indonesia, Southeast Asia’s largest economy in terms of GDP, the service sector employs nearly half of the country’s local workforce.
    • In Thailand, nearly 60% of the country’s GDP is generated by tourism and export-oriented production. Vietnam, one of APAC’s fastest-growing markets and a rising manufacturing powerhouse, counts the US among its top trading partners.
    • The Philippines’ business process outsourcing (BPO) sector, a key pillar of the country’s economy, employs 1.3 million people.

    The power of effective communication

    app’s 2022 Power Skills Survey is a drop in the ocean of reports hailing effective communication as one of the top factors to both personal and business success. Good communicators have been linked to higher performance in school, at work and in their personal lives. It is no surprise then that good communicators are highly sought after by talent recruiters.

    With many businesses moving to hiring outside of traditional location boundaries, more languages are inevitable in the workplace. So, can good communication transcend language barriers?

    As the statistics gathered by the Power Skills Survey show, there is evidence that sharing one common language, and therefore enabling more effective communication, can improve business opportunities, workforce growth and ultimately the economy. In the survey report, Norlida Azmi, Group Chief People Officer at Axiata, said:

    “Communication is a critical skill that sets the foundation for not only leadership competencies, such as people management and coalition building, but also for wider and effective stakeholder management in the ecosystem – communicating with our shareholders, customers and the communities that we operate in.”

    English: the official language of business

    While communication for globalization can look different for different markets, the English language is recognized as the prevailing choice for multinational companies. The Harvard Business Review says:

    “The need to tightly coordinate tasks and work with customers and partners worldwide has accelerated the move toward English as the official language of business.”

    So, with businesses now fighting to grow in a global marketplace, unlocking the power of the English language is crucial to success.

    Assessing English proficiency within your organization

    The survey shows that many organizations have work to do in this area, even if they view strong English proficiency as extremely important to their roles. It details the current state of assessing candidates’ English language proficiency and the percentage of organizations that have strategies in place to upskill their employees English proficiency. Both leave room for improvement.

    According to the survey, the number one way talent acquisition managers test English language skills is at the interview (58%), although 37% aren't measuring English language skills at all. This can be problematic later down the line, as not all four language skills (reading, writing, speaking and listening) will be accurately represented in an interview.

    Meanwhile, 27% of businesses use computer-based tests and 14% use paper-based tests to assess English language proficiency. By getting standardized test results, talent managers can more accurately assess if candidates’ English proficiency is suitable for the role, making for more confident and successful hires.

    Strategies for English upskilling

    Talent managers can also pass on these insights to learning and development managers to help them implement effective English language upskilling programs. While this investment can empower employees to perform better in their new role, it may also improve employee retention and even lead to succession and impact business growth.

    Whether organizations choose to hire new talent with higher levels of English proficiency or invest in learning and development programs to build their employees’ language skills, there are tools available to help.

    app Language Solutions for Work enables talent and learning and development managers to fast-track and simplify their recruitment and training processes, giving you total confidence that your candidates and employees have the English language skills to drive your business forward. Find the best language assessment and learning solutions for your organization here.

    Drive your business forward with language training

    If you liked this blog post and want to learn more, download our PDF report here.

    Find out more about how language training and assessment can drive your business forward by checking out our resources for HR professionals, including articles, whitepapers and research.