Can computers really mark exams? Benefits of ELT automated assessments

app Languages
Hands typing at a laptop with symbols

Automated assessment, including the use of Artificial Intelligence (AI), is one of the latest education tech solutions. It speeds up exam marking times, removes human biases, and is as accurate and at least as reliable as human examiners. As innovations go, this one is a real game-changer for teachers and students. 

However, it has understandably been met with many questions and sometimes skepticism in the ELT community – can computers really mark speaking and writing exams accurately? 

The answer is a resounding yes. Students from all parts of the world already take AI-graded tests.  aԻ Versanttests – for example – provide unbiased, fair and fast automated scoring for speaking and writing exams – irrespective of where the test takers live, or what their accent or gender is. 

This article will explain the main processes involved in AI automated scoring and make the point that AI technologies are built on the foundations of consistent expert human judgments. So, let’s clear up the confusion around automated scoring and AI and look into how it can help teachers and students alike. 

AI versus traditional automated scoring

First of all, let’s distinguish between traditional automated scoring and AI. When we talk about automated scoring, generally, we mean scoring items that are either multiple-choice or cloze items. You may have to reorder sentences, choose from a drop-down list, insert a missing word- that sort of thing. These question types are designed to test particular skills and automated scoring ensures that they can be marked quickly and accurately every time.

While automatically scored items like these can be used to assess receptive skills such as listening and reading comprehension, they cannot mark the productive skills of writing and speaking. Every student's response in writing and speaking items will be different, so how can computers mark them?

This is where AI comes in. 

We hear a lot about how AI is increasingly being used in areas where there is a need to deal with large amounts of unstructured data, effectively and 100% accurately – like in medical diagnostics, for example. In language testing, AI uses specialized computer software to grade written and oral tests. 

How AI is used to score speaking exams

The first step is to build an acoustic model for each language that can recognize speech and convert it into waveforms and text. While this technology used to be very unusual, most of our smartphones can do this now. 

These acoustic models are then trained to score every single prompt or item on a test. We do this by using human expert raters to score the items first, using double marking. They score hundreds of oral responses for each item, and these ‘Standards’ are then used to train the engine. 

Next, we validate the trained engine by feeding in many more human-marked items, and check that the machine scores are very highly correlated to the human scores. If this doesn’t happen for any item, we remove it, as it must match the standard set by human markers. We expect a correlation of between .95-.99. That means that tests will be marked between 95-99% exactly the same as human-marked samples. 

This is incredibly high compared to the reliability of human-marked speaking tests. In essence, we use a group of highly expert human raters to train the AI engine, and then their standard is replicated time after time.  

How AI is used to score writing exams

Our AI writing scoring uses a technology called . LSA is a natural language processing technique that can analyze and score writing, based on the meaning behind words – and not just their superficial characteristics. 

Similarly to our speech recognition acoustic models, we first establish a language-specific text recognition model. We feed a large amount of text into the system, and LSA uses artificial intelligence to learn the patterns of how words relate to each other and are used in, for example, the English language. 

Once the language model has been established, we train the engine to score every written item on a test. As in speaking items, we do this by using human expert raters to score the items first, using double marking. They score many hundreds of written responses for each item, and these ‘Standards’ are then used to train the engine. We then validate the trained engine by feeding in many more human-marked items, and check that the machine scores are very highly correlated to the human scores. 

The benchmark is always the expert human scores. If our AI system doesn’t closely match the scores given by human markers, we remove the item, as it is essential to match the standard set by human markers.

AI’s ability to mark multiple traits 

One of the challenges human markers face in scoring speaking and written items is assessing many traits on a single item. For example, when assessing and scoring speaking, they may need to give separate scores for content, fluency and pronunciation. 

In written responses, markers may need to score a piece of writing for vocabulary, style and grammar. Effectively, they may need to mark every single item at least three times, maybe more. However, once we have trained the AI systems on every trait score in speaking and writing, they can then mark items on any number of traits instantaneously – and without error. 

AI’s lack of bias

A fundamental premise for any test is that no advantage or disadvantage should be given to any candidate. In other words, there should be no positive or negative bias. This can be very difficult to achieve in human-marked speaking and written assessments. In fact, candidates often feel they may have received a different score if someone else had heard them or read their work.

Our AI systems eradicate the issue of bias. This is done by ensuring our speaking and writing AI systems are trained on an extensive range of human accents and writing types. 

We don’t want perfect native-speaking accents or writing styles to train our engines. We use representative non-native samples from across the world. When we initially set up our AI systems for speaking and writing scoring, we trialed our items and trained our engines using millions of student responses. We continue to do this now as new items are developed.

The benefits of AI automated assessment

There is nothing wrong with hand-marking homework tests and exams. In fact, it is essential for teachers to get to know their students and provide personal feedback and advice. However, manually correcting hundreds of tests, daily or weekly, can be repetitive, time-consuming, not always reliable and takes time away from working alongside students in the classroom. The use of AI in formative and summative assessments can increase assessed practice time for students and reduce the marking load for teachers.

Language learning takes time, lots of time to progress to high levels of proficiency. The blended use of AI can:

  • address the increasing importance of formative assessmentto drive personalized learning and diagnostic assessment feedback 

  • allow students to practice and get instant feedback inside and outside of allocated teaching time

  • address the issue of teacher workload

  • create a virtuous combination between humans and machines, taking advantage of what humans do best and what machines do best. 

  • provide fair, fast and unbiased summative assessment scores in high-stakes testing.

We hope this article has answered a few burning questions about how AI is used to assess speaking and writing in our language tests. An interesting quote from Fei-Fei Li, Chief scientist at Google and Stanford Professor describes AI like this:

“I often tell my students not to be misled by the name ‘artificial intelligence’ — there is nothing artificial about it; A.I. is made by humans, intended to behave [like] humans and, ultimately, to impact human lives and human society.”

AI in formative and summative assessments will never replace the role of teachers. AI will support teachers, provide endless opportunities for students to improve, and provide a solution to slow, unreliable and often unfair high-stakes assessments.

Examples of AI assessments in ELT

At app, we have developed a range of assessments using AI technology.

Versant

The Versant tests are a great tool to help establish language proficiency benchmarks in any school, organization or business. They are specifically designed for placement tests to determine the appropriate level for the learner.

PTE Academic

The  is aimed at those who need to prove their level of English for a university place, a job or a visa. It uses AI to score tests and results are available within five days. 

Read more about the use of AI in our learning and testing here.

Explore our courseware and exams

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  • A man smiling and high fiving another person

    Ways to express admiration in English

    By

    Reading time: 4 minutes

    February is commonly associated with Valentine's Day, which is a day to express love and affection to your significant other. However, it's also important to express admiration for others in a platonic, non-romantic way.

    Language serves as the gateway to genuine communication, and one of the most delightful methods of connection is through expressions of admiration. As you practice and immerse yourself in the depths of the English language, you'll likely want to learn ways to convey heartfelt praise, elevating your ability to articulate and forge meaningful connections.

    In today's post, we explore a range of examples to enhance your language proficiency and elevate your conversational English.

    What is the definition of admiration?

    Originating from the Latin word admirari (meaning 'to wonder at'), admiration is the act of expressing sincere approval or deep appreciation towards someone or something, typically as a heartfelt form of praise or recognition for their achievements, qualities, or contributions. It is a sentiment that stems from feeling a genuine admiration for the impact and inspiration someone or something brings to our lives.

    Admiration is an emotion everyone can relate to, and the English language offers a beautiful range of words and expressions to convey it in the most subtle and nuanced ways.

    Whether you're dealing with a complex business transaction or simply enjoying a personal moment of connection, the richness of your words can reflect the depth of your feelings and make them even more meaningful.

    Examples of English compliments

    Let's look at some English phrases you can use to express admiration. There are different types for varying situations and people.

    Straightforward compliments

    To truly convey admiration in English, it's crucial to practice and become familiar with positive affirmations. The following phrases not only highlight the specific reason for your awe but also reflect a deeper, personal connection:

    • Your hard work is truly inspiring.
    • I'm in awe of your creativity.
    • You have an uncanny ability to make things happen.
    • Your perseverance is admirable.
    • Your kindness never goes unnoticed.

    Each of these phrases praises the character traits of the person you are addressing. They showcase attention to detail, appreciation for special skills, and the more intangible qualities, such as character and kindness, that are just as noteworthy.

    Tailored and specific accolades

    A compliment can carry more weight when it is clearly tailored to the individual. Phrases that are specific to a person's achievements and skills add a layer of thoughtfulness that is hard to ignore. Consider these examples of more personalized compliments:

    • The way you handled that difficult situation was masterful.
    • Your presentation was not only informative but also deeply insightful.
    • Your dedication to this project is truly top-notch.
    • I love how you always find a unique perspective.
    • Your attention to detail really sets you apart.

    These phrases go beyond generic niceties and serve to validate specific moments or attributes that set the person apart in a distinctive way.

    Building rapport with positive language

    Admiration doesn't always have to be solely based on achievements or success; it can also be directed toward someone's personality and interests.

    Sometimes, an outward expression of approval, high praise or agreement can forge a sense of commonality and mutual respect. Here are phrases that can help you beam with appreciation:

    • Your choice in music is impeccable.
    • I absolutely adore your sense of style.
    • The way you talk about your family is truly heartwarming.
    • Your passion for this topic is evident and contagious.
    • Your love of life is refreshing and infectious.

    Using these statements, you can create a warm and complimentary atmosphere, helping foster positive connections with others.

    Affectionate expressions for familiar friends

    When it comes to speaking (or writing) to someone you're close with, phrases of praise and admiration can touch on personal attributes and speak of shared experiences, creating an even stronger bond. These expressions should carry the warmth and familiarity that come with a close relationship:

    • Your sense of humor always lifts my spirits.
    • The wisdom you've shared has shaped and helped my own life so much.
    • You approach life's challenges with such grace; it's a privilege to know you.
    • The comfort and joy you bring as a friend cannot be overstated.
    • Your insights always provide a refreshing new angle, revealing things I had not thought about.

    These phrases are centered on intimate understanding and personal connections, deeply resonating with a shared history and mutual appreciation. They carry a more emotive meaning and weight, often used to reinforce the closeness and appreciation that develops through years of friendship or kinship. Therefore, you should use them with care and thought.

    The appropriateness of compliments

    The art of complimenting is nuanced; learning and gauging the appropriateness of a compliment is essential. Certain contexts or relationships might warrant a more conservative or formal approach. Professional settings, for example, often require focusing on achievements and abilities as opposed to personal compliments, which may be mistaken for overfamiliarity or unprofessional behavior.

    Consider culture and personal preferences

    Similarly, cultural sensitivities must be considered; a warm expression of admiration in one culture may be perceived as too forward or personal in another.

    Always ensure that compliments and praises are given in a manner that resonates with respect for the individual's privacy and comfort levels. By being mindful of your surroundings and the nature of your relationship with the person, your words of praise and admiration can be both fitting and heartfelt.

    Play it safe

    Usually, a good overall rule of thumb is the less you know someone, the less personal your compliments should be; if you're unsure, play it safe, or don't use one until you've gauged the situation appropriately.

    A note on delivery

    While these expressions are powerful in their own right, the delivery is key to ensuring the recipient truly feels your admiration. Context, tone of voice, and body language play a significant role in how your words are received. Be genuine, and let your admiration flow naturally. Avoid overuse of flattery, which can come across as insincere.

    Conclusion

    Whether you're networking, meeting with friends/loved ones, or simply conversing with a colleague, mastering the use of admiration and praise in the English language can open doors to deeper relationships and shared connections.

    Integrating these phrases into your lexicon can not only make your expressions more vibrant but can also help you cultivate a spirit of positivity, confidence and appreciation in your daily interactions. So make sure to incorporate examples like these into your own vocabulary; you never know whose day you might make with your compliments.

  • Children stood around a whiteboard, one is writing on the whiteboard smiling

    Ink's vital role in education: How colors influence student participation

    By app Languages

    Reading time: 7 minutes

    In this age where screens often dominate our field of vision, the humble ink pen might seem like a relic. Yet, intriguing research is bringing to light the unsung importance of ink in educational settings, particularly in enhancing student engagement and learning.

    Today, we look at the importance of handwriting and ink, and how it still plays a pivotal role in the cognitive development of students.

    The importance of ink and color

    , wrought into our documents and notes through ink, plays a significant role in memory retention and comprehension. Psychologists argue that colors like blue and green foster a sense of calmness and improve focus, making them ideal for environments geared toward learning. Conversely, vibrant colors such as red and orange are thought to stimulate energy and excitement, potentially boosting creativity and critical thinking skills. By strategically incorporating these colors into educational materials, teachers can create a more dynamic and effective learning atmosphere, encouraging students to engage more deeply with the content.

    Delving deeper into the benefits of ink for students

    Writing with ink offers multifaceted benefits in an educational context:

    Enhanced memory and learning

    Research has shown that students remember information better when they write it down by hand rather than typing it. This is attributed to the fact that handwriting requires a bit more effort and thought, leading to deeper processing of the information. For instance, college students were found to recall more information from a lecture when they took notes by hand compared to typing them.

    Brain activation

    Writing by hand activates different brain regions compared to typing. When children write, it stimulates areas of the brain responsible for learning and memory. This stimulation is less pronounced when typing. For example, handwriting has been shown to activate the region of the brain that responds more to handwritten letters than typed letters in young children. For example in James, W. L., & Engelhardt, T. M. (2012) ''. This research highlights how the act of handwriting, as opposed to typing, can influence cognitive development and creative thought processes in young learners.

    Development of fine motor skills and cognitive abilities

    Handwriting also plays a crucial role in the development of fine motor skills and cognitive abilities. It requires a level of hand-eye coordination, attention to detail, and thought about what is being written, which are essential skills for academic success and cognitive development.

    Creativity and thoughtful expression

    Handwriting can spark creativity and encourage more thoughtful expression. Slower than typing, it allows more time for creative ideas to develop and for the writer to choose their words carefully.

    Emotional and therapeutic benefits

    Handwriting can have therapeutic benefits, such as better immune function and reduced symptoms of anxiety and depression. Writing about stressful events by hand can arouse higher emotional levels, leading to greater therapeutic benefits compared to typing. For example, ''digs into the emotional and therapeutic benefits of writing by hand about stressful or significant life events.

    Problem-solving and mindfulness

    The process of handwriting can assist in problem-solving and serves as a mindful activity. Writing out problems can help clarify thoughts and lead to solutions. It also encourages a moment of calm and focus in a fast-paced world​​.

    In conclusion, the act of handwriting not only deepens focus and understanding but also contributes significantly to cognitive development, memory retention, creative thinking, emotional well-being and problem-solving skills. These benefits highlight the importance of maintaining handwriting as a skill, even in an increasingly digital world.

    Practical classroom applications of ink

    Teachers utilize various practical applications of ink in the classroom to enhance learning among students. These methods leverage the cognitive and educational benefits of handwriting:

    Handwritten note-taking

    Encouraging students to take notes by hand during lectures can significantly improve their understanding and retention of the material. . This method forces students to process and rephrase the information in their own words, which aids in deeper learning.

    Journal writing and creative tasks

    Assigning journal writing or creative writing tasks can be an effective way to develop student's writing skills and encourage self-expression. The act of writing by hand can stimulate creativity and thoughtfulness, as evidenced by numerous authors and researchers who advocate for the benefits of handwriting for creative processes.

    Practicing cursive writing

    , in particular, can be beneficial for cognitive development. It requires more complex motor skills and can help in the development of fine motor skills. Moreover, cursive writing can be faster than printing, which might engage students more effectively and give them a sense of personal style and ownership over their writing.

    Handwriting for memory and recall exercises

    Using pen and paper for writing exercises focused on memory and recall can be very effective. For example, having students write summaries of lessons or chapters by hand can help them better remember and understand the content. This method can be particularly useful for complex subjects where comprehension is critical​​.

    Therapeutic writing activities

    Incorporating therapeutic writing activities, such as writing letters or reflective essays, can offer emotional and psychological benefits. This practice can be particularly useful in subjects like literature or social studies, where understanding and expressing emotions are part of the learning process.

    Problem-Solving through writing

    Teachers can use handwriting for problem-solving activities, where students are asked to write out their thought processes when solving complex problems. This can, of course, be particularly useful in subjects like mathematics or science, where breaking down problems into smaller, manageable parts is essential.

    Peer review and handwritten feedback

    Providing handwritten feedback on students' work can be more personal and impactful. Teachers can also encourage students to peer-review each other's handwriting, fostering a more engaging and thoughtful critique process.

    Wrapping up: Ink's enduring relevance in education

    In summary, the use of ink and handwriting in the classroom offers a range of benefits for student learning, from improving memory and understanding to fostering creativity and emotional expression. These methods, supported by research and studies, can be effectively integrated into various teaching strategies to enhance educational outcomes.

    Despite the digital age's allure, ink remains a potent tool in the educational arsenal. By nudging students towards the use of ink and harnessing the power of color, educators can cultivate a more engaging, dynamic and effective learning atmosphere.

    Extra insights for maximizing ink's potential

    • Offer students a diverse palette of ink colors to spark their interest and creativity.
    • Promote the use of handwriting in creative and expressive writing exercises.
    • Develop color-coded educational materials to aid visual learning.
    • Encourage personalized stationery: Inspiring students to use personalized ink pens or stationery can increase their engagement and ownership of their written work. It might also stimulate their interest in practicing handwriting more frequently.
    • Implement ink-based art projects: Integrating art projects that require the use of different ink colors can help students explore their creativity while learning about color theory and its impact on emotions and perceptions.
    • Promote the study of calligraphy: Introducing students to the art of calligraphy can foster an appreciation for handwriting's aesthetic aspects and improve their fine motor skills and concentration.
    • Incorporate ink in digital detox sessions: Allocating specific times during which students are encouraged to use only ink and paper for their work can serve as a digital detox, helping them to focus better and reduce screen time.

    Beyond engagement: The art of handwriting

    An often-overlooked benefit of writing in ink is the improvement of handwriting skills. The focused nature of handwriting demands careful attention to letter and number formation, leading to neater, more legible writing. This skill is invaluable for note-taking efficiency and clarity, especially for when they enter the workforce.

    To sum up, the simple act of using ink can have far-reaching effects on student engagement and learning outcomes. We urge educators to rediscover the power of ink in their classrooms and observe the transformative effects it can have on their students.

    From enhancing memory and promoting creativity, to offering therapeutic benefits and aiding cognitive development, the act of presents a multifaceted tool for educators and students alike. Whilst we continue to advance in a digital age, it's crucial to remember the foundational skills and benefits that handwriting offers.

  • Students sat outdoors writing in notepads smiling

    Why learning a language is better than using machine translation

    By

    Reading time: 7 minutes

    As technology and AI translation tools continue to advance, it's becoming increasingly tempting to rely on them for language-related tasks. However, this can potentially undermine motivation to learn a new language when technology seems to offer a shortcut. While machine translation can be helpful, it also has its limitations.

    Learning a language goes beyond just communication; it opens the door to different cultures, mindsets, and perspectives of the world. Machine translation, despite its efficiency, cannot replicate the cultural immersion that comes with learning a language. Spoken language nuances, idiomatic expressions, cultural references, and implicit rules that are second nature to native speakers are often lost in translation. Let's delve deeper into why learning a language is better than solely relying on machine translation.