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
133 Valid Reviews
The Polynesian Spa experience has a total of 136 reviews. There are 133 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 133 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 | 1 |
|
1% |
78.35% Average
The raw data average (mean) for all the Polynesian Spa valid reviews is 78.35% and is based on 133 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 133 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
63.29%
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 |
|---|---|---|---|
| Michael | 1/10 | 71 days | 100% |
| Joonas Lehtomaki | 4/10 | 3493 days | 1% |
| Margot | 7/10 | 3496 days | 3% |
| Philip Sheridan | 7/10 | 3505 days | 3% |
| John Edwards | 9/10 | 3522 days | 3% |
| Cathy La Frenais | 8/10 | 3763 days | 2% |
| Marie Bocquier | 8/10 | 3772 days | 2% |
| Felix | 8/10 | 3807 days | 1% |
| Fabian | 7/10 | 3808 days | 1% |
| Juro | 7/10 | 3808 days | 1% |
| Sandra | 7/10 | 3818 days | 1% |
| Franziska and Sabine | 8/10 | 3826 days | 1% |
| Martina | 8/10 | 3834 days | 1% |
| Jessie Sabine | 7/10 | 4534 days | 1% |
| Matthew Trezise | 7/10 | 4534 days | 1% |
| Frederic Gazzarin | 10/10 | 4539 days | 1% |
| Patricia Gazzarin | 9/10 | 4539 days | 1% |
| Melissa Hermansson | 8/10 | 4542 days | 1% |
| Thi Baut | 9/10 | 4579 days | 1% |
| Alice Berg | 8/10 | 4873 days | 1% |
| nl | 9/10 | 4982 days | 1% |
| Peter Kent | 9/10 | 5232 days | 1% |
| Antoine Lacoste | 6/10 | 5238 days | 1% |
| Hanna Clement | 6/10 | 5239 days | 1% |
| Numa Brouimet | 8/10 | 5241 days | 1% |
| Darina Kvasnicova | 8/10 | 5247 days | 1% |
| Richard Harvey | 9/10 | 5254 days | 1% |
| Mark Bogton | 9/10 | 5254 days | 1% |
| Hannah Bean | 7/10 | 5256 days | 1% |
| Elise Violet | 7/10 | 5258 days | 1% |
| Dominique | 8/10 | 5258 days | 1% |
| Lepied | 8/10 | 5261 days | 1% |
| Kimberley Mills | 10/10 | 5261 days | 1% |
| John Reynolds | 8/10 | 5269 days | 1% |
| Kurt Furuskar | 9/10 | 5285 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5305 days | 1% |
| Jan & Marian | 10/10 | 5348 days | 1% |
| Natascha Rachel | 3/10 | 5556 days | 0% |
| P Bukal | 10/10 | 5590 days | 1% |
| Kendall | 8/10 | 5594 days | 1% |
| Michael Simmang | 10/10 | 5599 days | 1% |
| Dave Patterson | 8/10 | 5602 days | 1% |
| Jerven and Kim | 3/10 | 5604 days | 0% |
| Katy Bourne | 7/10 | 5605 days | 1% |
| Claudio | 3/10 | 5617 days | 0% |
| Walter Peters | 9/10 | 5623 days | 1% |
| Claire Hoyland | 9/10 | 5626 days | 1% |
| Eva Stauderova | 9/10 | 5630 days | 1% |
| Amanda Craig | 7/10 | 5633 days | 1% |
| D Oostrum | 8/10 | 5634 days | 1% |
| C Gobl | 8/10 | 5638 days | 1% |
| Rosey834 | 9/10 | 5701 days | 1% |
| JimBradshaw | 9/10 | 5854 days | 1% |
| KieranE | 7/10 | 5915 days | 1% |
| Victoria Slater | 10/10 | 5950 days | 1% |
| Andy & Louise Dutton | 10/10 | 5963 days | 1% |
| Leonard Vans | 7/10 | 5976 days | 1% |
| Cecile | 9/10 | 5979 days | 1% |
| Maria Lorentzen | 9/10 | 5983 days | 1% |
| Sue Bennett | 9/10 | 5986 days | 1% |
| Robert Trostle | 10/10 | 5989 days | 1% |
| Mark | 8/10 | 5995 days | 1% |
| Bram-Jan M | 8/10 | 6003 days | 1% |
| Sebastian Kramer | 4/10 | 6010 days | 0% |
| Maarten | 9/10 | 6013 days | 1% |
| varenaee | 9/10 | 6051 days | 1% |
| Trisha T | 9/10 | 6066 days | 1% |
| Bue Verrept | 8/10 | 6073 days | 1% |
| Wim Put | 9/10 | 6092 days | 1% |
| Poonam Patel | 10/10 | 6207 days | 1% |
| KYinNZ | 9/10 | 6219 days | 1% |
| monniere | 8/10 | 6220 days | 1% |
| YohanM | 7/10 | 6305 days | 1% |
| David | 9/10 | 6310 days | 1% |
| Andrew | 8/10 | 6310 days | 1% |
| Yvanna | 7/10 | 6329 days | 1% |
| Maria | 8/10 | 6333 days | 1% |
| SarahK | 10/10 | 6343 days | 1% |
| RachelR | 9/10 | 6343 days | 1% |
| SofiaBrazil | 10/10 | 6343 days | 1% |
| MartinG | 8/10 | 6343 days | 1% |
| TatiamT | 10/10 | 6343 days | 1% |
| PellucoFrance | 8/10 | 6344 days | 1% |
| Ole | 8/10 | 6350 days | 1% |
| Tessa | 10/10 | 6360 days | 1% |
| DaraghD | 8/10 | 6367 days | 1% |
| Annika | 4/10 | 6374 days | 0% |
| Kirk | 6/10 | 6378 days | 1% |
| Evangelista | 6/10 | 6382 days | 1% |
| Corinna | 7/10 | 6384 days | 1% |
| Maud | 7/10 | 6414 days | 1% |
| Spyfox | 10/10 | 6416 days | 1% |
| Inga | 7/10 | 6436 days | 1% |
| Sabrina | 9/10 | 6441 days | 1% |
| Nadia | 7/10 | 6443 days | 1% |
| Gayle | 8/10 | 6467 days | 1% |
| Rebekka | 9/10 | 6474 days | 1% |
| Antonella | 10/10 | 6484 days | 1% |
| teamaustria | 9/10 | 6499 days | 1% |
| Katja | 7/10 | 6516 days | 1% |
| Fiona | 10/10 | 6529 days | 1% |
| Louise | 8/10 | 6529 days | 1% |
| fgregory | 10/10 | 6572 days | 1% |
| Bonny Doon | 6/10 | 6573 days | 1% |
| Toni Keown | 3/10 | 6665 days | 0% |
| Naoko | 5/10 | 6676 days | 1% |
| Olaf Penn | 7/10 | 6701 days | 1% |
| Mie Toft Pedersen | 10/10 | 6706 days | 1% |
| Tobias Rahm | 6/10 | 6715 days | 1% |
| Haemnerli | 8/10 | 6715 days | 1% |
| Maruja | 9/10 | 6753 days | 1% |
| Maria | 5/10 | 6753 days | 1% |
| Amanda Finger | 9/10 | 6758 days | 1% |
| Desiree Muri | 10/10 | 6758 days | 1% |
| Andrew Porter | 8/10 | 6758 days | 1% |
| Kay | 9/10 | 6781 days | 1% |
| Martin Nigschit | 6/10 | 6784 days | 1% |
| lawrence Walker | 8/10 | 6784 days | 1% |
| Fiona | 9/10 | 6791 days | 1% |
| Neil Cooke | 7/10 | 6792 days | 1% |
| Willemien | 8/10 | 6802 days | 1% |
| Kimberley Mayer | 9/10 | 6802 days | 1% |
| Kim | 10/10 | 6997 days | 1% |
| Stacey | 7/10 | 7020 days | 1% |
| Michael | 8/10 | 7033 days | 1% |
| Jules | 6/10 | 7038 days | 1% |
| Fran | 7/10 | 7040 days | 1% |
| Dave | 6/10 | 7040 days | 1% |
| Bas Marieke | 8/10 | 7051 days | 1% |
| Detlef | 4/10 | 7054 days | 0% |
| Jenny | 7/10 | 7056 days | 1% |
| Duncan | 7/10 | 7069 days | 1% |
| Nissa | 6/10 | 7075 days | 1% |
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
-0.50% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 125 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 50 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 47 | -0.47% |
| 48 | -0.48% |
| 49 | -0.49% |
| 50 | -0.50% |
| 51 | -0.51% |
| 52 | -0.52% |
| 53 | -0.53% |
| … | … |
Balancing Adjustment
11.84% 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
75%
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.