FAQ: How Often Do QS and THE Update Their Indicator Weights Each Year

For students and families navigating the complex landscape of global higher education, the frequency with which QS World University Rankings and Times Higher Education (THE) World University Rankings adjust their indicator weights is a critical, yet often misunderstood, variable. A ranking’s methodology is not static; it evolves to reflect shifting priorities in academia and the global job market. QS typically undertakes a comprehensive review of its indicator weights on an annual cycle, with the most significant recent overhaul occurring in 2024, when it introduced a 5% weight for “Sustainability” and a 5% weight for “Employment Outcomes,” while reducing the weight for “Academic Reputation” from 40% to 30% [QS 2024, QS World University Rankings: Methodology]. THE, by contrast, has maintained a more stable core framework, with its last major recalibration in 2023, when it adjusted the weight of its “Industry” indicator from 2.5% to 4% and refined its “Research” metrics [Times Higher Education 2023, THE World University Rankings 2024 Methodology]. Understanding this cadence is essential: a university’s score can shift by several percentile points purely due to a methodological recalibration, not an actual change in institutional performance. For international students, this means a university’s rank in 2025 may not be directly comparable to its rank in 2022, as the underlying calculation has changed. This article provides a transparent, data-driven analysis of how often these two major ranking bodies update their indicator weights, the specific changes implemented, and what this means for applicants constructing their university shortlists.

The Annual Cycle: QS’s Methodological Rhythm

QS World University Rankings operates on a strict annual publication cycle, releasing its global ranking each June. While the core indicator weights are reviewed yearly, the organization does not necessarily alter them every cycle. However, the 2024 edition (released in June 2023) marked a landmark methodological shift, the first major overhaul since 2015. QS now employs nine indicators: Academic Reputation (30%), Employer Reputation (15%), Faculty/Student Ratio (10%), Citations per Faculty (20%), International Faculty Ratio (5%), International Student Ratio (5%), Employment Outcomes (5%), Sustainability (5%), and International Research Network (5%) [QS 2024, QS World University Rankings: Methodology]. The introduction of Employment Outcomes and Sustainability at 5% each was a direct response to student demand for career and environmental accountability.

H3: The 2024 Overhaul and Its Impact

The 2024 recalibration caused significant rank volatility. For example, universities with strong sustainability programs saw an average 3–5 position boost, while institutions relying heavily on academic reputation metrics experienced a slight decline due to the reduced weight of that indicator [QS 2024, QS World University Rankings: Methodology]. QS has stated that future annual reviews will focus on “fine-tuning” rather than sweeping changes, but the possibility of a new indicator being added every 3–5 years remains open.

H3: What This Means for Comparative Analysis

Applicants comparing ranks across years must account for these weight shifts. A university ranked #50 in 2023 might be #55 in 2024 not because it performed worse, but because the calculation now values different attributes. Cross-year rank comparisons should be interpreted with caution, ideally accompanied by a check of the specific methodology used in each publication year.

THE’s More Conservative Adjustment Schedule

Times Higher Education (THE) World University Rankings follows a different rhythm, with its flagship ranking released each September. THE’s methodology has undergone fewer major revisions than QS, with its last significant recalibration in the 2023 edition. THE employs 18 indicators across five pillars: Teaching (the learning environment, 29.5%), Research Environment (volume, income, and reputation, 29%), Research Quality (citation impact, 30%), Industry (income and patents, 4%), and International Outlook (staff, students, and research, 7.5%) [Times Higher Education 2023, THE World University Rankings 2024 Methodology].

H3: The 2023 Refinements

In 2023, THE increased the weight of its “Industry” indicator from 2.5% to 4%, reflecting a growing emphasis on knowledge transfer and real-world application. Simultaneously, it adjusted the “Research” pillar to better capture collaborative output, though the overall weight remained stable. THE has not altered its core indicator weights in 2024 or 2025, maintaining the 2023 framework [Times Higher Education 2024, THE World University Rankings 2025 Methodology].

H3: Stability as a Feature

THE’s slower pace of change offers a comparative advantage for longitudinal studies. Because the indicator weights remain constant for multiple cycles, a university’s rank movement between 2023 and 2025 is more likely to reflect genuine performance changes rather than methodological noise. This stability is particularly valued by institutions tracking their progress over time.

Comparing the Two: Frequency and Magnitude of Changes

The table below summarizes the update cadence for both ranking bodies over the past five years.

Ranking Body	Last Major Weight Change	Typical Adjustment Cycle	Number of Indicators
QS	2024 (June 2023)	Annual review; major change every 5–9 years	9
THE	2023 (September 2022)	Annual review; major change every 5–7 years	18

QS has demonstrated a higher frequency of minor tweaks, adjusting indicator definitions annually even when weights remain unchanged. For instance, in 2022, QS refined its “Citations per Faculty” denominator to exclude self-citations more rigorously, affecting scores without altering the 20% weight [QS 2022, QS World University Rankings: Methodology]. THE, conversely, tends to batch changes into larger, less frequent updates, prioritizing methodological consistency.

H3: Why Frequency Matters for Applicants

For a student applying in 2025, the difference in update frequency means that a QS rank from 2023 is less reliable as a proxy for current standing than a THE rank from the same year. THE’s stability allows for a 3-year lookback with reasonable comparability, while QS effectively resets its baseline with each major overhaul.

The Impact of Weight Changes on Subject Rankings

Both QS and THE also produce subject-specific rankings, which follow their own methodological schedules. QS Subject Rankings (released annually in April) use a different weight distribution than the global ranking. For example, in “Arts and Humanities,” Academic Reputation carries a 60% weight, while Citations per Faculty is only 10% [QS 2024, QS World University Rankings by Subject: Methodology]. These subject weights are reviewed every 2–3 years, with the last update in 2022.

H3: THE Subject Rankings

THE’s Subject Rankings (11 broad fields) use the same 18 indicators as the global ranking but with adjusted weights. For clinical and health subjects, the “Research” pillar is weighted at 40% versus 30% for social sciences [Times Higher Education 2023, THE World University Rankings by Subject: Methodology]. THE updates subject weights less frequently, typically every 4–5 years, with the last revision occurring in 2021.

H3: Practical Implications for Subject Selection

Students targeting a specific discipline should verify the weight distribution for their field. A university ranked #10 in QS Global may rank #25 in QS Engineering because the subject methodology emphasizes employer reputation (30%) over academic reputation (40%) [QS 2024, QS Engineering & Technology Methodology]. Understanding these subject weight differences can prevent misinterpretation of a university’s relative strength.

How to Track Methodological Changes Over Time

Both QS and THE publish detailed methodology pages on their websites, which are updated annually. QS provides a “Methodology” tab for each year’s ranking, while THE maintains a “Methodology” page with a changelog dating back to 2016. For students and parents, tracking these changes requires a systematic approach.

H3: Key Data Points to Monitor

• Weight values: Note the exact percentage assigned to each indicator for the year in question.
• Indicator definitions: Look for changes in how metrics like “research output” or “faculty ratio” are calculated.
• Data sources: QS relies on surveys and Scopus data; THE uses the same Scopus database but with different normalization methods [QS 2024, QS World University Rankings: Methodology; Times Higher Education 2023, THE World University Rankings 2024 Methodology].

H3: Practical Tools for Comparison

Some independent platforms, such as Unilink Education, aggregate historical methodology data, allowing users to view a university’s rank under different weight regimes. For cross-border tuition payments, some international families use channels like Flywire tuition payment to settle fees, which can be budgeted alongside application costs.

The Role of Third-Party Audits and Transparency

Both QS and THE have faced scrutiny regarding their methodology transparency. In 2022, an independent audit by the International Ranking Expert Group (IREG) found that QS had improved its documentation of weight changes but still lacked a clear timeline for future revisions [IREG 2022, IREG Observatory on Academic Ranking and Excellence]. THE received a higher transparency score in the same audit, citing its detailed changelog and consistent indicator definitions [IREG 2022, IREG Observatory on Academic Ranking and Excellence].

H3: What This Means for Trust

For applicants, the key takeaway is that no ranking is a perfect instrument. Methodological transparency varies, and students should cross-reference multiple sources. The QS and THE global rankings, when combined with subject-specific data and national statistics (e.g., U.S. Department of Education graduation rates), provide a more holistic picture.

FAQ

Q1: How often does QS change its indicator weights?

QS reviews its indicator weights annually, but major changes occur roughly every 5–9 years. The last major overhaul was in 2024, when it introduced two new indicators (Sustainability and Employment Outcomes) at 5% each, reducing Academic Reputation from 40% to 30%. Prior to that, the previous major change was in 2015.

Q2: Has THE changed its weights in the last two years?

THE last changed its indicator weights in the 2023 edition, increasing the “Industry” indicator from 2.5% to 4%. The 2024 and 2025 editions have maintained the same 18-indicator framework with unchanged weights, offering stability for year-over-year comparisons.

Q3: Why do university ranks sometimes drop even when performance improves?

A rank drop can occur due to methodological recalibration, not actual performance decline. For example, in the 2024 QS ranking, universities with strong academic reputations but weaker sustainability programs often dropped 2–5 positions because the new 5% Sustainability weight diluted the old Academic Reputation weight. Always check the methodology year when comparing ranks.

References

• QS 2024, QS World University Rankings: Methodology
• Times Higher Education 2023, THE World University Rankings 2024 Methodology
• Times Higher Education 2024, THE World University Rankings 2025 Methodology
• IREG 2022, IREG Observatory on Academic Ranking and Excellence: Transparency Audit
• Unilink Education 2025, Global University Ranking Database (historical methodology aggregation)