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
83.32%
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 | 1748 days | 100% |
| Dan Coates | 9/10 | 1981 days | 87% |
| Dominik | 9/10 | 1981 days | 87% |
| Holloway | 10/10 | 2004 days | 86% |
| Christina | 6/10 | 2072 days | 68% |
| Barbara Knops | 9/10 | 2074 days | 82% |
| Manu Liberta | 10/10 | 2084 days | 82% |
| Bruno | 9/10 | 2094 days | 81% |
| Kirsty Smith | 10/10 | 2117 days | 80% |
| Sophia Satter | 8/10 | 2128 days | 76% |
| Afiya Levy | 10/10 | 2349 days | 68% |
| Johannes Eisel | 6/10 | 2358 days | 55% |
| Alexander Mattea | 5/10 | 2358 days | 54% |
| Timea Bagosi | 9/10 | 2361 days | 67% |
| Riviere | 8/10 | 2372 days | 63% |
| Dani | 8/10 | 2374 days | 63% |
| Benoit Leclerc | 7/10 | 2376 days | 60% |
| Anna Stoehr | 10/10 | 2394 days | 65% |
| Kai Krchmar | 6/10 | 2447 days | 51% |
| Kristina Farkas | 5/10 | 2742 days | 37% |
| Sophia Kadel | 10/10 | 2772 days | 45% |
| Laura and Marie | 7/10 | 2778 days | 40% |
| Rachel S | 10/10 | 2786 days | 44% |
| Joris Giullemot | 8/10 | 3094 days | 26% |
| Laura Metz | 7/10 | 3105 days | 24% |
| Hubertus Thost | 7/10 | 3105 days | 24% |
| Amanda | 4/10 | 3120 days | 20% |
| S B | 10/10 | 3133 days | 26% |
| M K | 10/10 | 3133 days | 26% |
| Maya Bakker-deDreu | 8/10 | 3141 days | 24% |
| Christin Woelk | 9/10 | 3421 days | 10% |
| Maria Klister | 7/10 | 3441 days | 8% |
| Lydia Kleinkoenen | 9/10 | 3461 days | 8% |
| Jessica Grewe | 9/10 | 3461 days | 8% |
| Hannah Lia-Isis Kubillus | 9/10 | 3461 days | 8% |
| Jan Zimmerman | 8/10 | 3472 days | 7% |
| Margaret and Derek McNeil | 10/10 | 3532 days | 4% |
| Frank and Suzanne | 8/10 | 3547 days | 3% |
| RollingMoon | 8/10 | 3608 days | 0% |
| Marcel & Kim Meichtry | 7/10 | 3828 days | 23% |
| Howell Davies | 5/10 | 3831 days | 20% |
| Baas | 7/10 | 3831 days | 23% |
| Pete & Pat Etheridge | 8/10 | 3831 days | 24% |
| Siegfried Richter | 7/10 | 3832 days | 23% |
| Melanie Mathiak | 10/10 | 3834 days | 25% |
| Sig Schrattner | 8/10 | 3834 days | 24% |
| Rebecca Doehl | 7/10 | 3835 days | 23% |
| Seth & Carla | 7/10 | 3836 days | 23% |
| Gabriele Wendt | 9/10 | 3836 days | 25% |
| Tadej Ferjan | 8/10 | 3836 days | 24% |
| Mary Mitchell | 10/10 | 3836 days | 25% |
| Emily Wikston | 9/10 | 3837 days | 25% |
| Andreas & Leonie Fehr | 10/10 | 3843 days | 25% |
| Horst Langstein | 9/10 | 3844 days | 25% |
| Marco Scheiber | 9/10 | 3845 days | 25% |
| Friedrich Kaltner | 10/10 | 3847 days | 25% |
| Frank & Julia | 10/10 | 3850 days | 25% |
| Thyg Lingdal | 10/10 | 3850 days | 25% |
| Nicole van Bergen | 8/10 | 3850 days | 24% |
| Mike & April Prince | 7/10 | 3864 days | 23% |
| Alfred & Henrike | 8/10 | 3876 days | 24% |
| Lyn Stainton | 6/10 | 3925 days | 21% |
| Ken Talan | 10/10 | 4153 days | 25% |
| Jon_and_Family | 9/10 | 4157 days | 25% |
| Gertz | 10/10 | 4161 days | 25% |
| Katarina Bokor | 8/10 | 4165 days | 24% |
| Mark Franklin | 6/10 | 4165 days | 21% |
| Gordon Agent | 10/10 | 4165 days | 25% |
| Maureen Hardy | 8/10 | 4165 days | 24% |
| AJ van Pelt | 8/10 | 4165 days | 24% |
| Werner and Rita | 9/10 | 4172 days | 25% |
| Richard Dudfield | 10/10 | 4174 days | 25% |
| Sayaka | 7/10 | 4174 days | 23% |
| Urs and Isabella | 7/10 | 4175 days | 23% |
| Juliane Kleiu | 10/10 | 4178 days | 25% |
| Linda Kremer | 9/10 | 4179 days | 25% |
| Rebecca Johnston | 9/10 | 4179 days | 25% |
| David Mellard | 10/10 | 4180 days | 25% |
| Bruce & Elaine Chote | 10/10 | 4180 days | 25% |
| Paul Nickson | 8/10 | 4180 days | 24% |
| Monique | 8/10 | 4180 days | 24% |
| Beat & Connie | 10/10 | 4182 days | 25% |
| Alex Stil | 9/10 | 4182 days | 25% |
| Pein van Nosrt | 7/10 | 4187 days | 23% |
| Raith | 9/10 | 4187 days | 25% |
| Elise van Haastert | 8/10 | 4187 days | 24% |
| Claudia | 10/10 | 4189 days | 25% |
| Carolin Ranner | 6/10 | 4189 days | 21% |
| Winskowsky | 9/10 | 4190 days | 25% |
| Hvid | 9/10 | 4204 days | 25% |
| Judith K. | 6/10 | 4206 days | 21% |
| Ruben and Jetske | 7/10 | 4206 days | 23% |
| Roy Seymour | 9/10 | 4207 days | 25% |
| Tom Hill | 10/10 | 4211 days | 25% |
| Ruua Reyrink | 7/10 | 4212 days | 23% |
| Patrick Hugener | 9/10 | 4212 days | 25% |
| JohnHaestad | 4/10 | 4216 days | 20% |
| dollimyxture | 10/10 | 4247 days | 25% |
| aggiemary04 | 10/10 | 4339 days | 25% |
| victoriauk | 4/10 | 4461 days | 20% |
| Baumgarten | 8/10 | 4489 days | 24% |
| travelbunnyadventures | 8/10 | 4492 days | 24% |
| Don & Geraldine | 10/10 | 4528 days | 25% |
| Matthias & Ceristiane | 8/10 | 4540 days | 24% |
| Hilary and Chris Ayton | 9/10 | 4541 days | 25% |
| Lis & Rob Tate | 9/10 | 4543 days | 25% |
| ccthornton100 | 10/10 | 4553 days | 25% |
| Bob Kusesia | 10/10 | 4554 days | 25% |
| Yssel de Schepper | 7/10 | 4559 days | 23% |
| Janny Meerdinnk Veldboow | 7/10 | 4559 days | 23% |
| Arie Ascher | 9/10 | 4560 days | 25% |
| Wolfgang Engelke | 10/10 | 4562 days | 25% |
| Thomas K | 9/10 | 4562 days | 25% |
| Loleit | 7/10 | 4574 days | 23% |
| Mattias Thorm | 9/10 | 4575 days | 25% |
| Vincente Garrido | 4/10 | 4576 days | 20% |
| R Gilge | 10/10 | 4577 days | 25% |
| Erik Hummelmose | 8/10 | 4577 days | 24% |
| Ian E | 6/10 | 4577 days | 21% |
| Nadine Schaee | 9/10 | 4578 days | 25% |
| Belinda Godhard | 2/10 | 4578 days | 18% |
| Uwe Rieper | 10/10 | 4580 days | 25% |
| E.M. Prideaux | 10/10 | 4595 days | 25% |
| Elizabeth E | 8/10 | 4597 days | 24% |
| Stevens Frans | 8/10 | 4598 days | 24% |
| Heinrich Hax | 9/10 | 4601 days | 25% |
| tanh | 7/10 | 4628 days | 23% |
| Stephanie Steiner | 8/10 | 4647 days | 24% |
| Julia May | 9/10 | 4654 days | 25% |
| X Neils | 7/10 | 4665 days | 23% |
| Sarah Smith | 5/10 | 4669 days | 20% |
| Anna | 6/10 | 4673 days | 21% |
| OliverG1 | 7/10 | 4875 days | 23% |
| Philipp | 5/10 | 4887 days | 20% |
| JasminA | 5/10 | 4887 days | 20% |
| ChristinaV | 8/10 | 4897 days | 24% |
| JuergenSchnitzer | 9/10 | 4903 days | 25% |
| AstridVG | 7/10 | 4903 days | 23% |
| NatasjaV | 7/10 | 4905 days | 23% |
| JimmyK | 7/10 | 4905 days | 23% |
| MarcoJ | 9/10 | 4907 days | 25% |
| LucyPoland | 9/10 | 4908 days | 25% |
| Stolz | 7/10 | 4911 days | 23% |
| BrzezinskaM | 10/10 | 4912 days | 25% |
| AndreB | 10/10 | 4912 days | 25% |
| Linda | 7/10 | 4918 days | 23% |
| Susan | 8/10 | 4919 days | 24% |
| Byleveld | 7/10 | 4920 days | 23% |
| JoseB | 8/10 | 4921 days | 24% |
| JetteG | 10/10 | 4921 days | 25% |
| CarolF | 7/10 | 4922 days | 23% |
| Rachel | 9/10 | 4936 days | 25% |
| Claire | 7/10 | 4936 days | 23% |
| Denise | 8/10 | 4938 days | 24% |
| Denk | 8/10 | 4949 days | 24% |
| Klalis | 10/10 | 4952 days | 25% |
| Thomas | 4/10 | 4955 days | 20% |
| Mike | 5/10 | 4956 days | 20% |
| Debbie Mossman | 9/10 | 4962 days | 25% |
| Johann | 10/10 | 4964 days | 25% |
| Carina | 10/10 | 4965 days | 25% |
| Mat | 8/10 | 5004 days | 24% |
| Anette | 7/10 | 5006 days | 23% |
| midlands_missus | 8/10 | 5009 days | 24% |
| David | 7/10 | 5064 days | 23% |
| Suyin | 10/10 | 5085 days | 25% |
| Franz | 10/10 | 5258 days | 25% |
| Jennifer Baulch | 7/10 | 5263 days | 23% |
| George Jeffs | 10/10 | 5266 days | 25% |
| Jacob | 9/10 | 5270 days | 25% |
| Aharon | 10/10 | 5285 days | 25% |
| D.A. Mulder | 8/10 | 5286 days | 24% |
| Knol | 8/10 | 5288 days | 24% |
| Cole Penelope | 8/10 | 5291 days | 24% |
| Jody | 7/10 | 5299 days | 23% |
| Anna | 5/10 | 5299 days | 20% |
| Pauline Thai | 8/10 | 5306 days | 24% |
| Dan Adamson | 8/10 | 5306 days | 24% |
| Stephen Brightman | 8/10 | 5315 days | 24% |
| Madeleine Rowland | 8/10 | 5315 days | 24% |
| Bronwyn Gaby | 9/10 | 5333 days | 25% |
| Free_ride | 9/10 | 5349 days | 25% |
| Michael | 9/10 | 5372 days | 25% |
| Raul | 10/10 | 5622 days | 25% |
| TeamFlorida | 9/10 | 5624 days | 25% |
| TeamFlorida | 8/10 | 5624 days | 24% |
| James | 9/10 | 5637 days | 25% |
| Rudi | 10/10 | 5641 days | 25% |
| Rolf Kruger | 10/10 | 5665 days | 25% |
| Brian | 10/10 | 5669 days | 25% |
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
-2.35% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 111 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 | -2.31% |
| 198 | -2.32% |
| 199 | -2.33% |
| 200 | -2.35% |
| 201 | -2.36% |
| 202 | -2.37% |
| 203 | -2.38% |
| … | … |
Final Ranking Score
81%
The final ranking score once any adjustments, ratings, 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.