Ranking Score Explained
Hi there, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Te Anau Glowworm Caves.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Te Anau Glowworm Caves
Valid Reviews
190 Valid Reviews
The Te Anau Glowworm Caves experience has a total of 191 reviews. There are 190 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 190 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 49 |
|
26% |
| 9/10 | 43 |
|
23% |
| 8/10 | 41 |
|
22% |
| 7/10 | 34 |
|
18% |
| 6/10 | 9 |
|
5% |
| 5/10 | 8 |
|
4% |
| 4/10 | 5 |
|
3% |
| 3/10 | 0 |
|
0% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
82.05% Average
The raw data average (mean) for all the Te Anau Glowworm Caves valid reviews is 82.05% and is based on 190 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
176 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 190 valid reviews, the experience has 176 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 176 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 45 |
|
26% |
| 9/10 | 39 |
|
22% |
| 8/10 | 38 |
|
22% |
| 7/10 | 34 |
|
19% |
| 6/10 | 8 |
|
5% |
| 5/10 | 8 |
|
5% |
| 4/10 | 3 |
|
2% |
| 3/10 | 0 |
|
0% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
82.10% Average
The raw data average (mean) for all the Te Anau Glowworm Caves face-to-face reviews is 82.10% and is based on 176 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
83.11%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Dorothy and Graham Glen | 9/10 | 1172 days | 100% |
| Dan Coates | 9/10 | 1405 days | 91% |
| Dominik | 9/10 | 1405 days | 91% |
| Holloway | 10/10 | 1428 days | 90% |
| Christina | 6/10 | 1496 days | 72% |
| Barbara Knops | 9/10 | 1498 days | 87% |
| Manu Liberta | 10/10 | 1508 days | 86% |
| Bruno | 9/10 | 1518 days | 86% |
| Kirsty Smith | 10/10 | 1541 days | 85% |
| Sophia Satter | 8/10 | 1552 days | 80% |
| Afiya Levy | 10/10 | 1773 days | 76% |
| Johannes Eisel | 6/10 | 1782 days | 62% |
| Alexander Mattea | 5/10 | 1782 days | 61% |
| Timea Bagosi | 9/10 | 1784 days | 75% |
| Riviere | 8/10 | 1796 days | 71% |
| Dani | 8/10 | 1798 days | 71% |
| Benoit Leclerc | 7/10 | 1800 days | 68% |
| Anna Stoehr | 10/10 | 1818 days | 74% |
| Kai Krchmar | 6/10 | 1871 days | 59% |
| Kristina Farkas | 5/10 | 2166 days | 48% |
| Sophia Kadel | 10/10 | 2196 days | 59% |
| Laura and Marie | 7/10 | 2202 days | 53% |
| Rachel S | 10/10 | 2209 days | 58% |
| Joris Giullemot | 8/10 | 2518 days | 43% |
| Laura Metz | 7/10 | 2529 days | 41% |
| Hubertus Thost | 7/10 | 2529 days | 41% |
| Amanda | 4/10 | 2544 days | 35% |
| S B | 10/10 | 2557 days | 44% |
| M K | 10/10 | 2557 days | 44% |
| Maya Bakker-deDreu | 8/10 | 2565 days | 41% |
| Christin Woelk | 9/10 | 2845 days | 32% |
| Maria Klister | 7/10 | 2865 days | 29% |
| Lydia Kleinkoenen | 9/10 | 2885 days | 31% |
| Jessica Grewe | 9/10 | 2885 days | 31% |
| Hannah Lia-Isis Kubillus | 9/10 | 2885 days | 31% |
| Jan Zimmerman | 8/10 | 2896 days | 29% |
| Margaret and Derek McNeil | 10/10 | 2956 days | 28% |
| Frank and Suzanne | 8/10 | 2971 days | 26% |
| RollingMoon | 8/10 | 3032 days | 23% |
| Marcel & Kim Meichtry | 7/10 | 3252 days | 14% |
| Howell Davies | 5/10 | 3255 days | 13% |
| Baas | 7/10 | 3255 days | 14% |
| Pete & Pat Etheridge | 8/10 | 3255 days | 15% |
| Siegfried Richter | 7/10 | 3256 days | 14% |
| Melanie Mathiak | 10/10 | 3258 days | 16% |
| Sig Schrattner | 8/10 | 3258 days | 15% |
| Rebecca Doehl | 7/10 | 3259 days | 14% |
| Seth & Carla | 7/10 | 3260 days | 14% |
| Gabriele Wendt | 9/10 | 3260 days | 15% |
| Tadej Ferjan | 8/10 | 3260 days | 15% |
| Mary Mitchell | 10/10 | 3260 days | 15% |
| Emily Wikston | 9/10 | 3261 days | 15% |
| Andreas & Leonie Fehr | 10/10 | 3267 days | 15% |
| Horst Langstein | 9/10 | 3268 days | 15% |
| Marco Scheiber | 9/10 | 3269 days | 15% |
| Friedrich Kaltner | 10/10 | 3271 days | 15% |
| Frank & Julia | 10/10 | 3274 days | 15% |
| Thyg Lingdal | 10/10 | 3274 days | 15% |
| Nicole van Bergen | 8/10 | 3274 days | 14% |
| Mike & April Prince | 7/10 | 3288 days | 13% |
| Alfred & Henrike | 8/10 | 3300 days | 13% |
| Lyn Stainton | 6/10 | 3349 days | 10% |
| Ken Talan | 10/10 | 3577 days | 3% |
| Jon_and_Family | 9/10 | 3581 days | 2% |
| Gertz | 10/10 | 3585 days | 2% |
| Katarina Bokor | 8/10 | 3589 days | 2% |
| Mark Franklin | 6/10 | 3589 days | 2% |
| Gordon Agent | 10/10 | 3589 days | 2% |
| Maureen Hardy | 8/10 | 3589 days | 2% |
| AJ van Pelt | 8/10 | 3589 days | 2% |
| Werner and Rita | 9/10 | 3596 days | 2% |
| Richard Dudfield | 10/10 | 3598 days | 2% |
| Sayaka | 7/10 | 3598 days | 2% |
| Urs and Isabella | 7/10 | 3599 days | 2% |
| Juliane Kleiu | 10/10 | 3602 days | 2% |
| Linda Kremer | 9/10 | 3603 days | 2% |
| Rebecca Johnston | 9/10 | 3603 days | 2% |
| David Mellard | 10/10 | 3604 days | 2% |
| Bruce & Elaine Chote | 10/10 | 3604 days | 2% |
| Paul Nickson | 8/10 | 3604 days | 1% |
| Monique | 8/10 | 3604 days | 1% |
| Beat & Connie | 10/10 | 3606 days | 1% |
| Alex Stil | 9/10 | 3606 days | 1% |
| Pein van Nosrt | 7/10 | 3611 days | 1% |
| Raith | 9/10 | 3611 days | 1% |
| Elise van Haastert | 8/10 | 3611 days | 1% |
| Claudia | 10/10 | 3613 days | 1% |
| Carolin Ranner | 6/10 | 3613 days | 1% |
| Winskowsky | 9/10 | 3614 days | 1% |
| Hvid | 9/10 | 3628 days | 1% |
| Judith K. | 6/10 | 3630 days | 0% |
| Ruben and Jetske | 7/10 | 3630 days | 0% |
| Roy Seymour | 9/10 | 3631 days | 0% |
| Tom Hill | 10/10 | 3635 days | 0% |
| Ruua Reyrink | 7/10 | 3636 days | 0% |
| Patrick Hugener | 9/10 | 3636 days | 0% |
| JohnHaestad | 4/10 | 3640 days | 0% |
| dollimyxture | 10/10 | 3671 days | 20% |
| aggiemary04 | 10/10 | 3763 days | 20% |
| victoriauk | 4/10 | 3885 days | 16% |
| Baumgarten | 8/10 | 3913 days | 19% |
| travelbunnyadventures | 8/10 | 3916 days | 19% |
| Don & Geraldine | 10/10 | 3952 days | 20% |
| Matthias & Ceristiane | 8/10 | 3964 days | 19% |
| Hilary and Chris Ayton | 9/10 | 3965 days | 20% |
| Lis & Rob Tate | 9/10 | 3967 days | 20% |
| ccthornton100 | 10/10 | 3977 days | 20% |
| Bob Kusesia | 10/10 | 3978 days | 20% |
| Yssel de Schepper | 7/10 | 3983 days | 19% |
| Janny Meerdinnk Veldboow | 7/10 | 3983 days | 19% |
| Arie Ascher | 9/10 | 3984 days | 20% |
| Wolfgang Engelke | 10/10 | 3986 days | 20% |
| Thomas K | 9/10 | 3986 days | 20% |
| Loleit | 7/10 | 3998 days | 19% |
| Mattias Thorm | 9/10 | 3999 days | 20% |
| Vincente Garrido | 4/10 | 4000 days | 16% |
| R Gilge | 10/10 | 4001 days | 20% |
| Erik Hummelmose | 8/10 | 4001 days | 19% |
| Ian E | 6/10 | 4001 days | 17% |
| Nadine Schaee | 9/10 | 4002 days | 20% |
| Belinda Godhard | 2/10 | 4002 days | 15% |
| Uwe Rieper | 10/10 | 4004 days | 20% |
| E.M. Prideaux | 10/10 | 4019 days | 20% |
| Elizabeth E | 8/10 | 4021 days | 19% |
| Stevens Frans | 8/10 | 4022 days | 19% |
| Heinrich Hax | 9/10 | 4025 days | 20% |
| tanh | 7/10 | 4052 days | 19% |
| Stephanie Steiner | 8/10 | 4071 days | 19% |
| Julia May | 9/10 | 4078 days | 20% |
| X Neils | 7/10 | 4089 days | 19% |
| Sarah Smith | 5/10 | 4093 days | 16% |
| Anna | 6/10 | 4097 days | 17% |
| OliverG1 | 7/10 | 4299 days | 19% |
| Philipp | 5/10 | 4311 days | 16% |
| JasminA | 5/10 | 4311 days | 16% |
| ChristinaV | 8/10 | 4320 days | 19% |
| JuergenSchnitzer | 9/10 | 4327 days | 20% |
| AstridVG | 7/10 | 4327 days | 19% |
| NatasjaV | 7/10 | 4329 days | 19% |
| JimmyK | 7/10 | 4329 days | 19% |
| MarcoJ | 9/10 | 4331 days | 20% |
| LucyPoland | 9/10 | 4332 days | 20% |
| Stolz | 7/10 | 4334 days | 19% |
| BrzezinskaM | 10/10 | 4336 days | 20% |
| AndreB | 10/10 | 4336 days | 20% |
| Linda | 7/10 | 4342 days | 19% |
| Susan | 8/10 | 4343 days | 19% |
| Byleveld | 7/10 | 4344 days | 19% |
| JoseB | 8/10 | 4345 days | 19% |
| JetteG | 10/10 | 4345 days | 20% |
| CarolF | 7/10 | 4346 days | 19% |
| Rachel | 9/10 | 4360 days | 20% |
| Claire | 7/10 | 4360 days | 19% |
| Denise | 8/10 | 4361 days | 19% |
| Denk | 8/10 | 4373 days | 19% |
| Klalis | 10/10 | 4375 days | 20% |
| Thomas | 4/10 | 4379 days | 16% |
| Mike | 5/10 | 4380 days | 16% |
| Debbie Mossman | 9/10 | 4386 days | 20% |
| Johann | 10/10 | 4387 days | 20% |
| Carina | 10/10 | 4389 days | 20% |
| Mat | 8/10 | 4428 days | 19% |
| Anette | 7/10 | 4430 days | 19% |
| midlands_missus | 8/10 | 4433 days | 19% |
| David | 7/10 | 4488 days | 19% |
| Suyin | 10/10 | 4508 days | 20% |
| Franz | 10/10 | 4682 days | 20% |
| Jennifer Baulch | 7/10 | 4687 days | 19% |
| George Jeffs | 10/10 | 4690 days | 20% |
| Jacob | 9/10 | 4694 days | 20% |
| Aharon | 10/10 | 4709 days | 20% |
| D.A. Mulder | 8/10 | 4710 days | 19% |
| Knol | 8/10 | 4712 days | 19% |
| Cole Penelope | 8/10 | 4715 days | 19% |
| Jody | 7/10 | 4723 days | 19% |
| Anna | 5/10 | 4723 days | 16% |
| Pauline Thai | 8/10 | 4730 days | 19% |
| Dan Adamson | 8/10 | 4730 days | 19% |
| Stephen Brightman | 8/10 | 4739 days | 19% |
| Madeleine Rowland | 8/10 | 4739 days | 19% |
| Bronwyn Gaby | 9/10 | 4757 days | 20% |
| Free_ride | 9/10 | 4773 days | 20% |
| Michael | 9/10 | 4796 days | 20% |
| Raul | 10/10 | 5046 days | 20% |
| TeamFlorida | 9/10 | 5048 days | 20% |
| TeamFlorida | 8/10 | 5048 days | 19% |
| James | 9/10 | 5061 days | 20% |
| Rudi | 10/10 | 5065 days | 20% |
| Rolf Kruger | 10/10 | 5089 days | 20% |
| Brian | 10/10 | 5093 days | 20% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Te Anau Glowworm Caves experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.10% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 days. However the Te Anau Glowworm Caves experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Te Anau Glowworm Caves experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.04% |
| 198 | -4.06% |
| 199 | -4.08% |
| 200 | -4.10% |
| 201 | -4.12% |
| 202 | -4.14% |
| 203 | -4.16% |
| … | … |
Final Ranking Score
79%
The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.