PISA 2022 Results (Volume I and II) ‑ Country Notes: Thailand
Table of contents
The Programme for International Student Assessment (PISA) assesses the knowledge and skills of 15-year-old students in mathematics, reading and science. The tests explore how well students can solve complex problems, think critically and communicate effectively. This gives insights into how well education systems are preparing students for real life challenges and future success. Thailand participated for the first time in PISA in 2001. By comparing results internationally, policy makers and educators in Thailand can learn from other countries’ policies and practices.
Average 2022 results were down compared to 2018 in mathematics, reading and science.
In all three subjects, average performance was lower in 2022 than in any previous assessment: the decline in mean scores between 2018 and 2022 confirmed and reinforced a decline that began earlier, between 2012 and 2015. Over the 2012-2022 period, performance declined by about 30 points in mathematics and science and about 60 points in reading– in other words, by more than the typical gain that students make, around the age of 15, over an entire school year.
Over the most recent period (2018 to 2022), the gap between the highest-scoring students (10% with the highest scores) and the weakest students (10% with the lowest scores) narrowed in mathematics, while it did not change significantly in reading and science. In mathematics, almost all students became weaker, but high-achievers declined by more than low-achievers did.
Compared to 2012 the proportion of students scoring below a baseline level of proficiency (Level 2) increased by 19 percentage points in mathematics; by 32 percentage points in reading; and by 19 percentage points in science.
Thailand, OECD average and selected comparison countries
Notes: Comparison countries include the six highest-performing countries in each subject and the five countries with the largest population of 15-year-old students.
Horizontal lines that extend beyond the markers represent a measure of uncertainty associated with mean estimates (the 95% confidence interval).
Source: OECD, PISA 2022 Database, Tables I.B1.2.1, I.B1.2.2 and I.B1.2.3.
Students in Thailand scored less than the OECD average in mathematics, reading and science.
A smaller proportion of students in Thailand, than on average across OECD countries, were top performers (Level 5 or 6) in at least one subject. At the same time a smaller proportion of students than on average across OECD countries achieved a minimum level of proficiency (Level 2 or higher) in all three subjects.
In Thailand, 32% of students attained at least Level 2 proficiency in mathematics, significantly less than on average across OECD countries (OECD average: 69%). At a minimum, these students can interpret and recognize, without direct instructions, how a simple situation can be represented mathematically (e.g. comparing the total distance across two alternative routes, or converting prices into a different currency). Over 85% of students in Singapore, Macao (China), Japan, Hong Kong (China)*, Chinese Taipei and Estonia (in descending order of that share) performed at this level or above.
Some 1% of students in Thailand were top performers in mathematics, meaning that they attained Level 5 or 6 in the PISA mathematics test (OECD average: 9%). Six Asian countries and economies had the largest shares of students who did so: Singapore (41%), Chinese Taipei (32%), Macao (China) (29%), Hong Kong (China)* (27%), Japan (23%) and Korea (23%). At these levels, students can model complex situations mathematically, and can select, compare and evaluate appropriate problem-solving strategies for dealing with them. Only in 16 out of 81 countries and economies participating in PISA 2022 did more than 10% of students attain Level 5 or 6 proficiency.
Note: Numbers inside the figure correspond to percentages.
Source: OECD, PISA 2022 Database, Tables I.B1.3.1, I.B1.3.2 and I.B1.3.3.
Some 35% of students in Thailand attained Level 2 or higher in reading (OECD average: 74%). At a minimum, these students can identify the main idea in a text of moderate length, find information based on explicit, though sometimes complex criteria, and can reflect on the purpose and form of texts when explicitly directed to do so. The share of 15-year-old students who attained minimum levels of proficiency in reading (Level 2 or higher) varied from 89% in Singapore to 8% in Cambodia.
In Thailand, almost no students scored at Level 5 or higher in reading (OECD average: 7%). These students can comprehend lengthy texts, deal with concepts that are abstract or counterintuitive, and establish distinctions between fact and opinion, based on implicit cues pertaining to the content or source of the information.
Some 47% of students in Thailand attained Level 2 or higher in science (OECD average: 76%). At a minimum, these students can recognize the correct explanation for familiar scientific phenomena and can use such knowledge to identify, in simple cases, whether a conclusion is valid based on the data provided.
In Thailand, 1% of students were top performers in science, meaning that they were proficient at Level 5 or 6 (OECD average: 7%). These students can creatively and autonomously apply their knowledge of and about science to a wide variety of situations, including unfamiliar ones.
This PISA test was originally due to be conducted in 2021 but was delayed by one year because of the COVID-19 pandemic. The exceptional circumstances throughout this period, including lockdowns and school closures in many countries, led to occasional difficulties in collecting some data. While the vast majority of countries and economies met PISA’s technical standards, a small number did not. A country or economy in this note with an asterisk (*) next to its name means that caution is required when interpreting estimates because one or more PISA sampling standards were not reached. Further information can be found in the Reader’s Guide and in Annexes A2 and A4 of the main report.
In Thailand, all data met the quality standards set by PISA and were considered fit for reporting.
Note: The size of markers is proportional to the share of the student population within each quintile of socio-economic status (as determined by the PISA index of economic, social and cultural status, ESCS). Quintiles are defined at the international level, to include 20% of PISA participants in each quintile; within each national sample, the proportion can therefore differ from 20%.
Vertical bars that extend beyond the markers represent a measure of uncertainty associated with each estimate (the 95% confidence interval). Horizontal, dashed lines represent the uncertainty associated with the mean score of the largest group of students (as defined by international quintiles) within Thailand.
Source: OECD, PISA 2022 Database, Tables I.B1.4.6 and I.B1.4.8.
The PISA index of economic, social and cultural status is computed in such a way that all students taking the PISA test, regardless of the country where they live, can be placed on the same socio-economic scale. This means that it is possible to use this index to compare the performance of students of similar socio-economic background in different countries. In Thailand, 33% of students (the largest share) were in the bottom international quintile of the socio-economic scale, meaning that they were among the most disadvantaged students who took the PISA test in 2022. Their average score in mathematics was 375 score points. In Türkiye and Viet Nam, students of similar socio-economic background tend to score significantly higher.
The PISA index of economic, social and cultural status can also be used to order students from the most disadvantaged to the most advantaged within each country and economy, and to create four groups of students of equal size (each comprising 25% of the population of 15-year-old students in each country/economy). In Thailand socio-economically advantaged students (the top 25% in terms of socio-economic status) outperformed disadvantaged students (the bottom 25%) by 61 score points in mathematics. This is smaller than the average difference between the two groups (93 score points) across OECD countries.
Between 2012 and 2022, the gap in mathematics performance between the top and the bottom 25% of students in terms of socio-economic status remained stable in Thailand, as well as across OECD countries on average.
Socio-economic status was a predictor of performance in mathematics in all PISA participating countries and economies. It accounted for 10% of the variation in mathematics performance in PISA 2022 in Thailand (compared to 15% on average across OECD countries).
Some 15% of disadvantaged students in Thailand were able to score in the top quarter of mathematics performance. These students can be considered academically resilient because, despite their socio-economic disadvantage, they have attained educational excellence by comparison with students in their own country. On average across OECD countries, 10% of disadvantaged students scored in the top quarter of mathematics performance in their own countries.
Boys and girls performed at similar levels on average in mathematics but girls outperformed boys in reading by 27 score points in Thailand. Globally, in mathematics, boys outperformed girls in 40 countries and economies, girls outperformed boys in another 17 countries or economies, and no significant difference was found in the remaining 24. In reading, girls, on average, scored above boys in all but two countries and economies that participated in PISA 2022 (79 out of 81).
In Thailand, the share of low performers is similar among boys (69%) and girls (67%) in mathematics; in reading, however, the share is larger among boys (60% of girls and 72% of boys scored below Level 2 in reading). When it comes to top performers, the share is similar among boys (1%) and girls (1%) in mathematics.
Between 2012 and 2022, performance in mathematics declined to a similar extent among boys and girls in Thailand.
In 2022, 84% of students in Thailand reported that they make friends easily at school (OECD average: 76%) and 76% felt that they belong at school (OECD average: 75%). Meanwhile, 20% reported feeling lonely at school, and 18% like an outsider or left out of things at school (OECD average: 16% and 17%). Compared to 2018, students’ sense of belonging at school improved in Thailand.
Students’ satisfaction with life, more generally, declined in many countries and economies over recent years. In 2022, 13% of students in Thailand reported that they were not satisfied with their lives: they rated their satisfaction with life between 0 and 4 on a scale ranging from 0 to 10. In 2018, fewer students were not satisfied with life (9%). On average across OECD countries, the proportion of students who are not satisfied with life increased from 11% in 2015 to 16% in 2018 and 18% in 2022.
Note: Numbers inside the figure correspond to percentages.
Source: OECD, PISA 2022 Database, Table II.B1.1.4.
In Thailand, 76% of students reported that, in most mathematics lessons, the teacher shows an interest in every student’s learning (OECD average: 63%), and 76% that the teacher gives extra help when students need it (OECD average: 70%). In 2012, the corresponding shares were 86% and 83%. Mathematics results in 2022 tended to decline less, on average, in education systems where more students reported that teachers give extra help when students need it, compared to ten years earlier.
Some students study mathematics in a disciplinary climate that is not favourable to learning: in 2022, about 20% of students in Thailand reported that they cannot work well in most or all lessons (OECD average: 23%); 20% of students do not listen to what the teacher says (OECD average: 30%); 26% of students get distracted using digital devices (OECD average: 30%); and 23% get distracted by other students who are using digital devices (OECD average: 25%). On average across OECD countries, students were less likely to report getting distracted using digital devices when the use of cell phones on school premises is banned.
PISA 2022 data show that in education systems where performance remained high and students’ sense of belonging improved, students tended to feel safer and less exposed to bullying and other risks at their school.
In Thailand, 11% of students reported not feeling safe on their way to school (OECD average: 8%); 8% of students reported not feeling safe in their classrooms at school (OECD average: 7%); 16% of students reported not feeling safe at other places at school (e.g. hallway, cafeteria, restroom) (OECD average: 10%).
Some 15% of girls and 19% of boys reported being the victim of bullying acts at least a few times a month (OECD average: 20% of girls and 21% of boys). On average across OECD countries, fewer students were exposed to bullying in 2022 compared to 2018: for example, only 7% of students reported that other students spread nasty rumours about them in 2022, compared to 11% in 2018. In Thailand, too, the corresponding proportions shrank (6% in 2022 compared to 14% in 2018).
PISA data collected from school principals show that the percentage of parents who were involved in school and learning decreased substantially between 2018 and 2022 in many countries/economies. This was not the case in Thailand. In 2022, 47% of students in Thailand were in schools whose principal reported that during the previous academic year at least half of all families discussed their child’s progress with a teacher on their own initiative (and 61% on the teacher’s initiative). In 2018, the corresponding number was 53% (and 72%). Systems that had more positive trends in parental involvement between 2018 and 2022 (i.e. systems in which the share of parents who discussed their child’s progress with a teacher on their own initiative shrank less) tended to show more stable or improved performance in mathematics.
In Thailand, 41% of students reported that their school building was closed for more than three months due to COVID-19. On average across OECD countries, 51% of students experienced similarly long school closures. In education systems where performance remained high and students’ sense of belonging improved, fewer students experienced longer school closures.
During remote learning, 31% of students in Thailand had problems at least once a week with understanding school assignments and 28% of students with finding someone who could help them with schoolwork (OECD averages: 34% and 24%). In education systems where performance remained high and students’ sense of belonging improved, fewer students encountered problems during remote learning.
Support for students’ well-being was often limited when their schools were closed. In Thailand, 30% of students reported that they were supported daily through live virtual classes on a video communication program. Only 21% of students reported that they were asked daily, by someone from the school, how they were feeling (OECD averages: 51% and 13%).
If school buildings have to close again in the future, many students across the OECD feel confident about using digital technology for learning remotely but fewer students feel confident about taking responsibility for their own learning. Some 51% of students in Thailand feel confident or very confident about using a video communication program and 55% of students feel confident or very confident about motivating themselves to do school work (OECD averages: 77% and 58%).
Expenditure on education is related to student performance only to a certain extent. Among the countries/economies whose cumulative expenditure per student, over all primary and secondary school years between the ages of 6 and 15, was under USD 75 000 (PPP) in 2019, higher expenditure on education was associated with higher scores in the PISA mathematics test. But this was not the case among countries/economies whose cumulative expenditure was greater than USD 75 000 (PPP). For this latter group of countries/economies, the ways in which financial resources are used seems to matter more for student performance than the level of investment in education.
In about half of all countries/economies with comparable data, school principals in 2022 were more likely than their counterparts in 2018 to report a shortage of teaching staff. This was not the case in Thailand. In 2022, 43% of students in Thailand were in schools whose principal reported that the school’s capacity to provide instruction is hindered by a lack of teaching staff (and 16%, by inadequate or poorly qualified teaching staff). In 2018, the corresponding proportions were 38% and 17%. In most countries/economies, students attending schools whose principal reported shortages of teaching staff scored lower in mathematics than students in schools whose principal reported fewer or no shortages of teaching staff.
When they sat the PISA test in 2022, 77% of 15-year-old students in Thailand were enrolled in 10th grade.
In Thailand, 98% reported that they had attended pre-primary education for one year or more (OECD average: 94%). On average across OECD countries, students who had attended pre-primary education for one year or more scored higher in mathematics at the age of 15 than students who never attended or who had attended for less than one year, even after accounting for socio-economic factors.
Some 7% of students in Thailand reported that they had repeated a grade at least once (OECD average: 9%) after entering primary school. Grade repetition tends to be less prevalent in high performing systems.
In Thailand, 26% of students attended a school where principals had the main responsibility for hiring teachers (OECD average: 60%), and 85% were enrolled in a school where teachers had the main responsibility for choosing which learning materials are used (OECD average: 76%). Many high-performing school systems tend to entrust principals and teachers with these responsibilities.
The PISA 2022 survey focused on mathematics, with reading and science as minor areas and creative thinking as the innovative area of assessment. PISA 2022 also included an assessment of young people’s financial literacy, which was optional for countries and economies. Results for mathematics, reading and science are released on 5 December 2023 and results for creative thinking and financial literacy in 2024.
Some 690 000 students took the assessment in 2022, representing about 29 million 15-year-olds in the schools of the 81 participating countries and economies.
In Thailand, 8495 students, in 279 schools, completed the assessment in mathematics, reading or science, representing about 604 600 15-year-old students (an estimated 75% of the total population of 15-year-olds).
Students took two hour-long tests, each devoted to one subject. Different students were given different test questions and different combinations of subjects (e.g. mathematics followed by reading, or science followed by mathematics, etc.). Test items were a mixture of multiple-choice questions and questions requiring students to construct their own responses.
Students also answered a background questionnaire, which took about 35 minutes to complete. The questionnaire sought information about the students themselves, their attitudes, dispositions and beliefs, their homes, and their school and learning experiences. School principals completed a questionnaire about school management, organisation, and the learning environment.
Some countries/economies also distributed additional questionnaires, to students, parents and/or teachers, to elicit more information. The findings from these optional questionnaires are not covered by this note.
References
OECD (2023), PISA 2022 Results (Volume I): The State of Learning and Equity in Education, PISA, OECD Publishing, Paris, https://doi.org/10.1787/53f23881-en
OECD (2023), PISA 2022 Results (Volume II): Learning During – and From – Disruption, PISA, OECD Publishing, Paris, https://doi.org/10.1787/a97db61c-en
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This note was written by Francesco Avvisati and Rodolfo Ilizaliturri, Directorate for Education and Skills.
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