G'day, 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 Polynesian Spa.
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.
Polynesian Spa
Valid Reviews
132 Valid Reviews
The Polynesian Spa experience has a total of 135 reviews. There are 132 valid reviews that are included when calculating the ranking score and 3 invalid reviews 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 132 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 21 |
|
16% |
| 9/10 | 31 |
|
23% |
| 8/10 | 34 |
|
26% |
| 7/10 | 26 |
|
20% |
| 6/10 | 10 |
|
8% |
| 5/10 | 2 |
|
2% |
| 4/10 | 4 |
|
3% |
| 3/10 | 4 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
78.86% Average
The raw data average (mean) for all the Polynesian Spa valid reviews is 78.86% and is based on 132 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
122 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 132 valid reviews, the experience has 122 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 122 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 19 |
|
16% |
| 9/10 | 26 |
|
21% |
| 8/10 | 33 |
|
27% |
| 7/10 | 26 |
|
21% |
| 6/10 | 9 |
|
7% |
| 5/10 | 2 |
|
2% |
| 4/10 | 4 |
|
3% |
| 3/10 | 3 |
|
2% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
78.61% Average
The raw data average (mean) for all the Polynesian Spa face-to-face reviews is 78.61% and is based on 122 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
80.13%
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 |
|---|---|---|---|
| Joonas Lehtomaki | 4/10 | 3433 days | 54% |
| Margot | 7/10 | 3436 days | 95% |
| Philip Sheridan | 7/10 | 3445 days | 94% |
| John Edwards | 9/10 | 3462 days | 100% |
| Cathy La Frenais | 8/10 | 3703 days | 61% |
| Marie Bocquier | 8/10 | 3712 days | 60% |
| Felix | 8/10 | 3747 days | 54% |
| Fabian | 7/10 | 3748 days | 49% |
| Juro | 7/10 | 3748 days | 49% |
| Sandra | 7/10 | 3758 days | 48% |
| Franziska and Sabine | 8/10 | 3766 days | 51% |
| Martina | 8/10 | 3774 days | 50% |
| Jessie Sabine | 7/10 | 4474 days | 31% |
| Matthew Trezise | 7/10 | 4474 days | 31% |
| Frederic Gazzarin | 10/10 | 4479 days | 37% |
| Patricia Gazzarin | 9/10 | 4479 days | 36% |
| Melissa Hermansson | 8/10 | 4482 days | 35% |
| Thi Baut | 9/10 | 4519 days | 36% |
| Alice Berg | 8/10 | 4813 days | 35% |
| nl | 9/10 | 4922 days | 36% |
| Peter Kent | 9/10 | 5172 days | 36% |
| Antoine Lacoste | 6/10 | 5178 days | 26% |
| Hanna Clement | 6/10 | 5179 days | 26% |
| Numa Brouimet | 8/10 | 5181 days | 35% |
| Darina Kvasnicova | 8/10 | 5187 days | 35% |
| Richard Harvey | 9/10 | 5194 days | 36% |
| Mark Bogton | 9/10 | 5194 days | 36% |
| Hannah Bean | 7/10 | 5196 days | 31% |
| Elise Violet | 7/10 | 5198 days | 31% |
| Dominique | 8/10 | 5198 days | 35% |
| Lepied | 8/10 | 5201 days | 35% |
| Kimberley Mills | 10/10 | 5201 days | 37% |
| John Reynolds | 8/10 | 5209 days | 35% |
| Kurt Furuskar | 9/10 | 5225 days | 36% |
| Barsch, Arwed & Gertrud | 10/10 | 5245 days | 37% |
| Jan & Marian | 10/10 | 5288 days | 37% |
| Natascha Rachel | 3/10 | 5496 days | 0% |
| P Bukal | 10/10 | 5530 days | 37% |
| Kendall | 8/10 | 5534 days | 35% |
| Michael Simmang | 10/10 | 5539 days | 37% |
| Dave Patterson | 8/10 | 5542 days | 35% |
| Jerven and Kim | 3/10 | 5544 days | 0% |
| Katy Bourne | 7/10 | 5545 days | 31% |
| Claudio | 3/10 | 5557 days | 0% |
| Walter Peters | 9/10 | 5563 days | 36% |
| Claire Hoyland | 9/10 | 5566 days | 36% |
| Eva Stauderova | 9/10 | 5570 days | 36% |
| Amanda Craig | 7/10 | 5573 days | 31% |
| D Oostrum | 8/10 | 5574 days | 35% |
| C Gobl | 8/10 | 5578 days | 35% |
| Rosey834 | 9/10 | 5641 days | 36% |
| JimBradshaw | 9/10 | 5794 days | 36% |
| KieranE | 7/10 | 5855 days | 31% |
| Victoria Slater | 10/10 | 5890 days | 37% |
| Andy & Louise Dutton | 10/10 | 5903 days | 37% |
| Leonard Vans | 7/10 | 5916 days | 31% |
| Cecile | 9/10 | 5919 days | 36% |
| Maria Lorentzen | 9/10 | 5923 days | 36% |
| Sue Bennett | 9/10 | 5926 days | 36% |
| Robert Trostle | 10/10 | 5929 days | 37% |
| Mark | 8/10 | 5935 days | 35% |
| Bram-Jan M | 8/10 | 5943 days | 35% |
| Sebastian Kramer | 4/10 | 5950 days | 9% |
| Maarten | 9/10 | 5953 days | 36% |
| varenaee | 9/10 | 5991 days | 36% |
| Trisha T | 9/10 | 6006 days | 36% |
| Bue Verrept | 8/10 | 6013 days | 35% |
| Wim Put | 9/10 | 6032 days | 36% |
| Poonam Patel | 10/10 | 6147 days | 37% |
| KYinNZ | 9/10 | 6159 days | 36% |
| monniere | 8/10 | 6160 days | 35% |
| YohanM | 7/10 | 6245 days | 31% |
| David | 9/10 | 6250 days | 36% |
| Andrew | 8/10 | 6250 days | 35% |
| Yvanna | 7/10 | 6269 days | 31% |
| Maria | 8/10 | 6273 days | 35% |
| SarahK | 10/10 | 6283 days | 37% |
| RachelR | 9/10 | 6283 days | 36% |
| SofiaBrazil | 10/10 | 6283 days | 37% |
| MartinG | 8/10 | 6283 days | 35% |
| TatiamT | 10/10 | 6283 days | 37% |
| PellucoFrance | 8/10 | 6284 days | 35% |
| Ole | 8/10 | 6290 days | 35% |
| Tessa | 10/10 | 6300 days | 37% |
| DaraghD | 8/10 | 6307 days | 35% |
| Annika | 4/10 | 6314 days | 9% |
| Kirk | 6/10 | 6318 days | 26% |
| Evangelista | 6/10 | 6322 days | 26% |
| Corinna | 7/10 | 6324 days | 31% |
| Maud | 7/10 | 6354 days | 31% |
| Spyfox | 10/10 | 6356 days | 37% |
| Inga | 7/10 | 6375 days | 31% |
| Sabrina | 9/10 | 6381 days | 36% |
| Nadia | 7/10 | 6383 days | 31% |
| Gayle | 8/10 | 6406 days | 35% |
| Rebekka | 9/10 | 6413 days | 36% |
| Antonella | 10/10 | 6424 days | 37% |
| teamaustria | 9/10 | 6439 days | 36% |
| Katja | 7/10 | 6456 days | 31% |
| Fiona | 10/10 | 6469 days | 37% |
| Louise | 8/10 | 6469 days | 35% |
| fgregory | 10/10 | 6512 days | 37% |
| Bonny Doon | 6/10 | 6513 days | 26% |
| Toni Keown | 3/10 | 6605 days | 0% |
| Naoko | 5/10 | 6616 days | 18% |
| Olaf Penn | 7/10 | 6641 days | 31% |
| Mie Toft Pedersen | 10/10 | 6646 days | 37% |
| Tobias Rahm | 6/10 | 6655 days | 26% |
| Haemnerli | 8/10 | 6655 days | 35% |
| Maruja | 9/10 | 6693 days | 36% |
| Maria | 5/10 | 6693 days | 18% |
| Amanda Finger | 9/10 | 6698 days | 36% |
| Desiree Muri | 10/10 | 6698 days | 37% |
| Andrew Porter | 8/10 | 6698 days | 35% |
| Kay | 9/10 | 6721 days | 36% |
| Martin Nigschit | 6/10 | 6724 days | 26% |
| lawrence Walker | 8/10 | 6724 days | 35% |
| Fiona | 9/10 | 6731 days | 36% |
| Neil Cooke | 7/10 | 6732 days | 31% |
| Willemien | 8/10 | 6742 days | 35% |
| Kimberley Mayer | 9/10 | 6742 days | 36% |
| Kim | 10/10 | 6937 days | 37% |
| Stacey | 7/10 | 6960 days | 31% |
| Michael | 8/10 | 6973 days | 35% |
| Jules | 6/10 | 6978 days | 26% |
| Fran | 7/10 | 6980 days | 31% |
| Dave | 6/10 | 6980 days | 26% |
| Bas Marieke | 8/10 | 6991 days | 35% |
| Detlef | 4/10 | 6994 days | 9% |
| Jenny | 7/10 | 6996 days | 31% |
| Duncan | 7/10 | 7009 days | 31% |
| Nissa | 6/10 | 7015 days | 26% |
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 Polynesian Spa experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.87% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 88 days. However the Polynesian Spa 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 Polynesian Spa experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.82% |
| 198 | -2.84% |
| 199 | -2.85% |
| 200 | -2.87% |
| 201 | -2.88% |
| 202 | -2.90% |
| 203 | -2.91% |
| … | … |
Balancing Adjustment
3.83% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
81%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.