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
83.35%
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 | 1282 days | 100% |
| Dan Coates | 9/10 | 1515 days | 89% |
| Dominik | 9/10 | 1515 days | 89% |
| Holloway | 10/10 | 1538 days | 88% |
| Christina | 6/10 | 1606 days | 70% |
| Barbara Knops | 9/10 | 1608 days | 85% |
| Manu Liberta | 10/10 | 1618 days | 85% |
| Bruno | 9/10 | 1628 days | 84% |
| Kirsty Smith | 10/10 | 1651 days | 83% |
| Sophia Satter | 8/10 | 1662 days | 78% |
| Afiya Levy | 10/10 | 1883 days | 73% |
| Johannes Eisel | 6/10 | 1892 days | 59% |
| Alexander Mattea | 5/10 | 1892 days | 57% |
| Timea Bagosi | 9/10 | 1895 days | 72% |
| Riviere | 8/10 | 1906 days | 68% |
| Dani | 8/10 | 1908 days | 68% |
| Benoit Leclerc | 7/10 | 1910 days | 64% |
| Anna Stoehr | 10/10 | 1928 days | 71% |
| Kai Krchmar | 6/10 | 1981 days | 56% |
| Kristina Farkas | 5/10 | 2276 days | 43% |
| Sophia Kadel | 10/10 | 2306 days | 54% |
| Laura and Marie | 7/10 | 2312 days | 48% |
| Rachel S | 10/10 | 2320 days | 53% |
| Joris Giullemot | 8/10 | 2628 days | 37% |
| Laura Metz | 7/10 | 2639 days | 34% |
| Hubertus Thost | 7/10 | 2639 days | 34% |
| Amanda | 4/10 | 2654 days | 28% |
| S B | 10/10 | 2667 days | 37% |
| M K | 10/10 | 2667 days | 37% |
| Maya Bakker-deDreu | 8/10 | 2675 days | 35% |
| Christin Woelk | 9/10 | 2955 days | 24% |
| Maria Klister | 7/10 | 2975 days | 21% |
| Lydia Kleinkoenen | 9/10 | 2995 days | 22% |
| Jessica Grewe | 9/10 | 2995 days | 22% |
| Hannah Lia-Isis Kubillus | 9/10 | 2995 days | 22% |
| Jan Zimmerman | 8/10 | 3006 days | 21% |
| Margaret and Derek McNeil | 10/10 | 3066 days | 19% |
| Frank and Suzanne | 8/10 | 3081 days | 17% |
| RollingMoon | 8/10 | 3142 days | 15% |
| Marcel & Kim Meichtry | 7/10 | 3362 days | 5% |
| Howell Davies | 5/10 | 3365 days | 3% |
| Baas | 7/10 | 3365 days | 5% |
| Pete & Pat Etheridge | 8/10 | 3365 days | 5% |
| Siegfried Richter | 7/10 | 3366 days | 5% |
| Melanie Mathiak | 10/10 | 3368 days | 6% |
| Sig Schrattner | 8/10 | 3368 days | 5% |
| Rebecca Doehl | 7/10 | 3369 days | 4% |
| Seth & Carla | 7/10 | 3370 days | 4% |
| Gabriele Wendt | 9/10 | 3370 days | 5% |
| Tadej Ferjan | 8/10 | 3370 days | 5% |
| Mary Mitchell | 10/10 | 3370 days | 5% |
| Emily Wikston | 9/10 | 3371 days | 5% |
| Andreas & Leonie Fehr | 10/10 | 3377 days | 5% |
| Horst Langstein | 9/10 | 3378 days | 5% |
| Marco Scheiber | 9/10 | 3379 days | 5% |
| Friedrich Kaltner | 10/10 | 3381 days | 5% |
| Frank & Julia | 10/10 | 3384 days | 5% |
| Thyg Lingdal | 10/10 | 3384 days | 5% |
| Nicole van Bergen | 8/10 | 3384 days | 4% |
| Mike & April Prince | 7/10 | 3398 days | 3% |
| Alfred & Henrike | 8/10 | 3410 days | 3% |
| Lyn Stainton | 6/10 | 3459 days | 0% |
| Ken Talan | 10/10 | 3687 days | 16% |
| Jon_and_Family | 9/10 | 3691 days | 16% |
| Gertz | 10/10 | 3695 days | 16% |
| Katarina Bokor | 8/10 | 3699 days | 15% |
| Mark Franklin | 6/10 | 3699 days | 12% |
| Gordon Agent | 10/10 | 3699 days | 16% |
| Maureen Hardy | 8/10 | 3699 days | 15% |
| AJ van Pelt | 8/10 | 3699 days | 15% |
| Werner and Rita | 9/10 | 3706 days | 16% |
| Richard Dudfield | 10/10 | 3708 days | 16% |
| Sayaka | 7/10 | 3708 days | 14% |
| Urs and Isabella | 7/10 | 3709 days | 14% |
| Juliane Kleiu | 10/10 | 3712 days | 16% |
| Linda Kremer | 9/10 | 3713 days | 16% |
| Rebecca Johnston | 9/10 | 3713 days | 16% |
| David Mellard | 10/10 | 3714 days | 16% |
| Bruce & Elaine Chote | 10/10 | 3714 days | 16% |
| Paul Nickson | 8/10 | 3714 days | 15% |
| Monique | 8/10 | 3714 days | 15% |
| Beat & Connie | 10/10 | 3716 days | 16% |
| Alex Stil | 9/10 | 3716 days | 16% |
| Pein van Nosrt | 7/10 | 3721 days | 14% |
| Raith | 9/10 | 3721 days | 16% |
| Elise van Haastert | 8/10 | 3721 days | 15% |
| Claudia | 10/10 | 3723 days | 16% |
| Carolin Ranner | 6/10 | 3723 days | 12% |
| Winskowsky | 9/10 | 3724 days | 16% |
| Hvid | 9/10 | 3738 days | 16% |
| Judith K. | 6/10 | 3740 days | 12% |
| Ruben and Jetske | 7/10 | 3740 days | 14% |
| Roy Seymour | 9/10 | 3741 days | 16% |
| Tom Hill | 10/10 | 3745 days | 16% |
| Ruua Reyrink | 7/10 | 3746 days | 14% |
| Patrick Hugener | 9/10 | 3746 days | 16% |
| JohnHaestad | 4/10 | 3750 days | 11% |
| dollimyxture | 10/10 | 3781 days | 16% |
| aggiemary04 | 10/10 | 3873 days | 16% |
| victoriauk | 4/10 | 3995 days | 11% |
| Baumgarten | 8/10 | 4023 days | 15% |
| travelbunnyadventures | 8/10 | 4026 days | 15% |
| Don & Geraldine | 10/10 | 4062 days | 16% |
| Matthias & Ceristiane | 8/10 | 4074 days | 15% |
| Hilary and Chris Ayton | 9/10 | 4075 days | 16% |
| Lis & Rob Tate | 9/10 | 4077 days | 16% |
| ccthornton100 | 10/10 | 4087 days | 16% |
| Bob Kusesia | 10/10 | 4088 days | 16% |
| Yssel de Schepper | 7/10 | 4093 days | 14% |
| Janny Meerdinnk Veldboow | 7/10 | 4093 days | 14% |
| Arie Ascher | 9/10 | 4094 days | 16% |
| Wolfgang Engelke | 10/10 | 4096 days | 16% |
| Thomas K | 9/10 | 4096 days | 16% |
| Loleit | 7/10 | 4108 days | 14% |
| Mattias Thorm | 9/10 | 4109 days | 16% |
| Vincente Garrido | 4/10 | 4110 days | 11% |
| R Gilge | 10/10 | 4111 days | 16% |
| Erik Hummelmose | 8/10 | 4111 days | 15% |
| Ian E | 6/10 | 4111 days | 12% |
| Nadine Schaee | 9/10 | 4112 days | 16% |
| Belinda Godhard | 2/10 | 4112 days | 10% |
| Uwe Rieper | 10/10 | 4114 days | 16% |
| E.M. Prideaux | 10/10 | 4129 days | 16% |
| Elizabeth E | 8/10 | 4131 days | 15% |
| Stevens Frans | 8/10 | 4132 days | 15% |
| Heinrich Hax | 9/10 | 4135 days | 16% |
| tanh | 7/10 | 4162 days | 14% |
| Stephanie Steiner | 8/10 | 4181 days | 15% |
| Julia May | 9/10 | 4188 days | 16% |
| X Neils | 7/10 | 4199 days | 14% |
| Sarah Smith | 5/10 | 4203 days | 12% |
| Anna | 6/10 | 4207 days | 12% |
| OliverG1 | 7/10 | 4409 days | 14% |
| Philipp | 5/10 | 4421 days | 12% |
| JasminA | 5/10 | 4421 days | 12% |
| ChristinaV | 8/10 | 4431 days | 15% |
| JuergenSchnitzer | 9/10 | 4437 days | 16% |
| AstridVG | 7/10 | 4438 days | 14% |
| NatasjaV | 7/10 | 4439 days | 14% |
| JimmyK | 7/10 | 4439 days | 14% |
| MarcoJ | 9/10 | 4441 days | 16% |
| LucyPoland | 9/10 | 4442 days | 16% |
| Stolz | 7/10 | 4445 days | 14% |
| BrzezinskaM | 10/10 | 4446 days | 16% |
| AndreB | 10/10 | 4446 days | 16% |
| Linda | 7/10 | 4453 days | 14% |
| Susan | 8/10 | 4454 days | 15% |
| Byleveld | 7/10 | 4454 days | 14% |
| JoseB | 8/10 | 4455 days | 15% |
| JetteG | 10/10 | 4455 days | 16% |
| CarolF | 7/10 | 4456 days | 14% |
| Rachel | 9/10 | 4471 days | 16% |
| Claire | 7/10 | 4471 days | 14% |
| Denise | 8/10 | 4472 days | 15% |
| Denk | 8/10 | 4484 days | 15% |
| Klalis | 10/10 | 4486 days | 16% |
| Thomas | 4/10 | 4490 days | 11% |
| Mike | 5/10 | 4491 days | 12% |
| Debbie Mossman | 9/10 | 4496 days | 16% |
| Johann | 10/10 | 4498 days | 16% |
| Carina | 10/10 | 4500 days | 16% |
| Mat | 8/10 | 4539 days | 15% |
| Anette | 7/10 | 4541 days | 14% |
| midlands_missus | 8/10 | 4543 days | 15% |
| David | 7/10 | 4599 days | 14% |
| Suyin | 10/10 | 4619 days | 16% |
| Franz | 10/10 | 4792 days | 16% |
| Jennifer Baulch | 7/10 | 4797 days | 14% |
| George Jeffs | 10/10 | 4800 days | 16% |
| Jacob | 9/10 | 4804 days | 16% |
| Aharon | 10/10 | 4819 days | 16% |
| D.A. Mulder | 8/10 | 4820 days | 15% |
| Knol | 8/10 | 4822 days | 15% |
| Cole Penelope | 8/10 | 4825 days | 15% |
| Jody | 7/10 | 4833 days | 14% |
| Anna | 5/10 | 4833 days | 12% |
| Pauline Thai | 8/10 | 4840 days | 15% |
| Dan Adamson | 8/10 | 4840 days | 15% |
| Stephen Brightman | 8/10 | 4849 days | 15% |
| Madeleine Rowland | 8/10 | 4849 days | 15% |
| Bronwyn Gaby | 9/10 | 4867 days | 16% |
| Free_ride | 9/10 | 4883 days | 16% |
| Michael | 9/10 | 4906 days | 16% |
| Raul | 10/10 | 5156 days | 16% |
| TeamFlorida | 9/10 | 5158 days | 16% |
| TeamFlorida | 8/10 | 5158 days | 15% |
| James | 9/10 | 5171 days | 16% |
| Rudi | 10/10 | 5175 days | 16% |
| Rolf Kruger | 10/10 | 5199 days | 16% |
| Brian | 10/10 | 5203 days | 16% |
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
-2.93% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 85 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 | -2.89% |
| 198 | -2.90% |
| 199 | -2.92% |
| 200 | -2.93% |
| 201 | -2.95% |
| 202 | -2.96% |
| 203 | -2.98% |
| … | … |
Final Ranking Score
80%
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.