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 | 1279 days | 100% |
| Dan Coates | 9/10 | 1512 days | 89% |
| Dominik | 9/10 | 1512 days | 89% |
| Holloway | 10/10 | 1535 days | 88% |
| Christina | 6/10 | 1603 days | 70% |
| Barbara Knops | 9/10 | 1605 days | 85% |
| Manu Liberta | 10/10 | 1615 days | 85% |
| Bruno | 9/10 | 1625 days | 84% |
| Kirsty Smith | 10/10 | 1648 days | 83% |
| Sophia Satter | 8/10 | 1659 days | 78% |
| Afiya Levy | 10/10 | 1880 days | 73% |
| Johannes Eisel | 6/10 | 1889 days | 59% |
| Alexander Mattea | 5/10 | 1889 days | 57% |
| Timea Bagosi | 9/10 | 1892 days | 72% |
| Riviere | 8/10 | 1903 days | 68% |
| Dani | 8/10 | 1905 days | 68% |
| Benoit Leclerc | 7/10 | 1907 days | 64% |
| Anna Stoehr | 10/10 | 1925 days | 71% |
| Kai Krchmar | 6/10 | 1978 days | 56% |
| Kristina Farkas | 5/10 | 2273 days | 43% |
| Sophia Kadel | 10/10 | 2303 days | 54% |
| Laura and Marie | 7/10 | 2309 days | 48% |
| Rachel S | 10/10 | 2317 days | 53% |
| Joris Giullemot | 8/10 | 2625 days | 37% |
| Laura Metz | 7/10 | 2636 days | 34% |
| Hubertus Thost | 7/10 | 2636 days | 34% |
| Amanda | 4/10 | 2651 days | 28% |
| S B | 10/10 | 2664 days | 37% |
| M K | 10/10 | 2664 days | 37% |
| Maya Bakker-deDreu | 8/10 | 2672 days | 35% |
| Christin Woelk | 9/10 | 2952 days | 24% |
| Maria Klister | 7/10 | 2972 days | 21% |
| Lydia Kleinkoenen | 9/10 | 2992 days | 22% |
| Jessica Grewe | 9/10 | 2992 days | 22% |
| Hannah Lia-Isis Kubillus | 9/10 | 2992 days | 22% |
| Jan Zimmerman | 8/10 | 3003 days | 21% |
| Margaret and Derek McNeil | 10/10 | 3063 days | 19% |
| Frank and Suzanne | 8/10 | 3078 days | 17% |
| RollingMoon | 8/10 | 3139 days | 15% |
| Marcel & Kim Meichtry | 7/10 | 3359 days | 5% |
| Howell Davies | 5/10 | 3362 days | 3% |
| Baas | 7/10 | 3362 days | 5% |
| Pete & Pat Etheridge | 8/10 | 3362 days | 5% |
| Siegfried Richter | 7/10 | 3363 days | 5% |
| Melanie Mathiak | 10/10 | 3365 days | 6% |
| Sig Schrattner | 8/10 | 3365 days | 5% |
| Rebecca Doehl | 7/10 | 3366 days | 4% |
| Seth & Carla | 7/10 | 3367 days | 4% |
| Gabriele Wendt | 9/10 | 3367 days | 6% |
| Tadej Ferjan | 8/10 | 3367 days | 5% |
| Mary Mitchell | 10/10 | 3367 days | 6% |
| Emily Wikston | 9/10 | 3368 days | 5% |
| Andreas & Leonie Fehr | 10/10 | 3374 days | 5% |
| Horst Langstein | 9/10 | 3375 days | 5% |
| Marco Scheiber | 9/10 | 3376 days | 5% |
| Friedrich Kaltner | 10/10 | 3378 days | 5% |
| Frank & Julia | 10/10 | 3381 days | 5% |
| Thyg Lingdal | 10/10 | 3381 days | 5% |
| Nicole van Bergen | 8/10 | 3381 days | 4% |
| Mike & April Prince | 7/10 | 3395 days | 3% |
| Alfred & Henrike | 8/10 | 3407 days | 3% |
| Lyn Stainton | 6/10 | 3456 days | 0% |
| Ken Talan | 10/10 | 3684 days | 16% |
| Jon_and_Family | 9/10 | 3688 days | 16% |
| Gertz | 10/10 | 3692 days | 16% |
| Katarina Bokor | 8/10 | 3696 days | 15% |
| Mark Franklin | 6/10 | 3696 days | 12% |
| Gordon Agent | 10/10 | 3696 days | 16% |
| Maureen Hardy | 8/10 | 3696 days | 15% |
| AJ van Pelt | 8/10 | 3696 days | 15% |
| Werner and Rita | 9/10 | 3703 days | 16% |
| Richard Dudfield | 10/10 | 3705 days | 16% |
| Sayaka | 7/10 | 3705 days | 14% |
| Urs and Isabella | 7/10 | 3706 days | 14% |
| Juliane Kleiu | 10/10 | 3709 days | 16% |
| Linda Kremer | 9/10 | 3710 days | 16% |
| Rebecca Johnston | 9/10 | 3710 days | 16% |
| David Mellard | 10/10 | 3711 days | 16% |
| Bruce & Elaine Chote | 10/10 | 3711 days | 16% |
| Paul Nickson | 8/10 | 3711 days | 15% |
| Monique | 8/10 | 3711 days | 15% |
| Beat & Connie | 10/10 | 3713 days | 16% |
| Alex Stil | 9/10 | 3713 days | 16% |
| Pein van Nosrt | 7/10 | 3718 days | 14% |
| Raith | 9/10 | 3718 days | 16% |
| Elise van Haastert | 8/10 | 3718 days | 15% |
| Claudia | 10/10 | 3720 days | 16% |
| Carolin Ranner | 6/10 | 3720 days | 12% |
| Winskowsky | 9/10 | 3721 days | 16% |
| Hvid | 9/10 | 3735 days | 16% |
| Judith K. | 6/10 | 3737 days | 12% |
| Ruben and Jetske | 7/10 | 3737 days | 14% |
| Roy Seymour | 9/10 | 3738 days | 16% |
| Tom Hill | 10/10 | 3742 days | 16% |
| Ruua Reyrink | 7/10 | 3743 days | 14% |
| Patrick Hugener | 9/10 | 3743 days | 16% |
| JohnHaestad | 4/10 | 3747 days | 11% |
| dollimyxture | 10/10 | 3778 days | 16% |
| aggiemary04 | 10/10 | 3870 days | 16% |
| victoriauk | 4/10 | 3992 days | 11% |
| Baumgarten | 8/10 | 4020 days | 15% |
| travelbunnyadventures | 8/10 | 4023 days | 15% |
| Don & Geraldine | 10/10 | 4059 days | 16% |
| Matthias & Ceristiane | 8/10 | 4071 days | 15% |
| Hilary and Chris Ayton | 9/10 | 4072 days | 16% |
| Lis & Rob Tate | 9/10 | 4074 days | 16% |
| ccthornton100 | 10/10 | 4084 days | 16% |
| Bob Kusesia | 10/10 | 4085 days | 16% |
| Yssel de Schepper | 7/10 | 4090 days | 14% |
| Janny Meerdinnk Veldboow | 7/10 | 4090 days | 14% |
| Arie Ascher | 9/10 | 4091 days | 16% |
| Wolfgang Engelke | 10/10 | 4093 days | 16% |
| Thomas K | 9/10 | 4093 days | 16% |
| Loleit | 7/10 | 4105 days | 14% |
| Mattias Thorm | 9/10 | 4106 days | 16% |
| Vincente Garrido | 4/10 | 4107 days | 11% |
| R Gilge | 10/10 | 4108 days | 16% |
| Erik Hummelmose | 8/10 | 4108 days | 15% |
| Ian E | 6/10 | 4108 days | 12% |
| Nadine Schaee | 9/10 | 4109 days | 16% |
| Belinda Godhard | 2/10 | 4109 days | 10% |
| Uwe Rieper | 10/10 | 4111 days | 16% |
| E.M. Prideaux | 10/10 | 4126 days | 16% |
| Elizabeth E | 8/10 | 4128 days | 15% |
| Stevens Frans | 8/10 | 4129 days | 15% |
| Heinrich Hax | 9/10 | 4132 days | 16% |
| tanh | 7/10 | 4159 days | 14% |
| Stephanie Steiner | 8/10 | 4178 days | 15% |
| Julia May | 9/10 | 4185 days | 16% |
| X Neils | 7/10 | 4196 days | 14% |
| Sarah Smith | 5/10 | 4200 days | 11% |
| Anna | 6/10 | 4204 days | 12% |
| OliverG1 | 7/10 | 4406 days | 14% |
| Philipp | 5/10 | 4418 days | 11% |
| JasminA | 5/10 | 4418 days | 11% |
| ChristinaV | 8/10 | 4428 days | 15% |
| JuergenSchnitzer | 9/10 | 4434 days | 16% |
| AstridVG | 7/10 | 4434 days | 14% |
| NatasjaV | 7/10 | 4436 days | 14% |
| JimmyK | 7/10 | 4436 days | 14% |
| MarcoJ | 9/10 | 4438 days | 16% |
| LucyPoland | 9/10 | 4439 days | 16% |
| Stolz | 7/10 | 4442 days | 14% |
| BrzezinskaM | 10/10 | 4443 days | 16% |
| AndreB | 10/10 | 4443 days | 16% |
| Linda | 7/10 | 4450 days | 14% |
| Susan | 8/10 | 4451 days | 15% |
| Byleveld | 7/10 | 4451 days | 14% |
| JoseB | 8/10 | 4452 days | 15% |
| JetteG | 10/10 | 4452 days | 16% |
| CarolF | 7/10 | 4453 days | 14% |
| Rachel | 9/10 | 4467 days | 16% |
| Claire | 7/10 | 4467 days | 14% |
| Denise | 8/10 | 4469 days | 15% |
| Denk | 8/10 | 4480 days | 15% |
| Klalis | 10/10 | 4483 days | 16% |
| Thomas | 4/10 | 4486 days | 11% |
| Mike | 5/10 | 4487 days | 11% |
| Debbie Mossman | 9/10 | 4493 days | 16% |
| Johann | 10/10 | 4495 days | 16% |
| Carina | 10/10 | 4497 days | 16% |
| Mat | 8/10 | 4535 days | 15% |
| Anette | 7/10 | 4537 days | 14% |
| midlands_missus | 8/10 | 4540 days | 15% |
| David | 7/10 | 4596 days | 14% |
| Suyin | 10/10 | 4616 days | 16% |
| Franz | 10/10 | 4789 days | 16% |
| Jennifer Baulch | 7/10 | 4794 days | 14% |
| George Jeffs | 10/10 | 4797 days | 16% |
| Jacob | 9/10 | 4801 days | 16% |
| Aharon | 10/10 | 4816 days | 16% |
| D.A. Mulder | 8/10 | 4817 days | 15% |
| Knol | 8/10 | 4819 days | 15% |
| Cole Penelope | 8/10 | 4822 days | 15% |
| Jody | 7/10 | 4830 days | 14% |
| Anna | 5/10 | 4830 days | 11% |
| Pauline Thai | 8/10 | 4837 days | 15% |
| Dan Adamson | 8/10 | 4837 days | 15% |
| Stephen Brightman | 8/10 | 4846 days | 15% |
| Madeleine Rowland | 8/10 | 4846 days | 15% |
| Bronwyn Gaby | 9/10 | 4864 days | 16% |
| Free_ride | 9/10 | 4880 days | 16% |
| Michael | 9/10 | 4903 days | 16% |
| Raul | 10/10 | 5153 days | 16% |
| TeamFlorida | 9/10 | 5155 days | 16% |
| TeamFlorida | 8/10 | 5155 days | 15% |
| James | 9/10 | 5168 days | 16% |
| Rudi | 10/10 | 5172 days | 16% |
| Rolf Kruger | 10/10 | 5196 days | 16% |
| Brian | 10/10 | 5200 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
-3.00% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 82 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 | -2.96% |
| 198 | -2.97% |
| 199 | -2.99% |
| 200 | -3.00% |
| 201 | -3.02% |
| 202 | -3.03% |
| 203 | -3.05% |
| … | … |
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.