Kia ora, 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
63.32%
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 |
|---|---|---|---|
| Michael | 1/10 | 31 days | 100% |
| Joonas Lehtomaki | 4/10 | 3453 days | 2% |
| Margot | 7/10 | 3456 days | 3% |
| Philip Sheridan | 7/10 | 3465 days | 3% |
| John Edwards | 9/10 | 3482 days | 3% |
| Cathy La Frenais | 8/10 | 3723 days | 2% |
| Marie Bocquier | 8/10 | 3732 days | 2% |
| Felix | 8/10 | 3767 days | 2% |
| Fabian | 7/10 | 3768 days | 1% |
| Juro | 7/10 | 3768 days | 1% |
| Sandra | 7/10 | 3778 days | 1% |
| Franziska and Sabine | 8/10 | 3786 days | 1% |
| Martina | 8/10 | 3794 days | 1% |
| Jessie Sabine | 7/10 | 4494 days | 1% |
| Matthew Trezise | 7/10 | 4494 days | 1% |
| Frederic Gazzarin | 10/10 | 4499 days | 1% |
| Patricia Gazzarin | 9/10 | 4499 days | 1% |
| Melissa Hermansson | 8/10 | 4502 days | 1% |
| Thi Baut | 9/10 | 4539 days | 1% |
| Alice Berg | 8/10 | 4833 days | 1% |
| nl | 9/10 | 4942 days | 1% |
| Peter Kent | 9/10 | 5192 days | 1% |
| Antoine Lacoste | 6/10 | 5198 days | 1% |
| Hanna Clement | 6/10 | 5199 days | 1% |
| Numa Brouimet | 8/10 | 5201 days | 1% |
| Darina Kvasnicova | 8/10 | 5207 days | 1% |
| Richard Harvey | 9/10 | 5214 days | 1% |
| Mark Bogton | 9/10 | 5214 days | 1% |
| Hannah Bean | 7/10 | 5216 days | 1% |
| Elise Violet | 7/10 | 5218 days | 1% |
| Dominique | 8/10 | 5218 days | 1% |
| Lepied | 8/10 | 5221 days | 1% |
| Kimberley Mills | 10/10 | 5221 days | 1% |
| John Reynolds | 8/10 | 5229 days | 1% |
| Kurt Furuskar | 9/10 | 5245 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5265 days | 1% |
| Jan & Marian | 10/10 | 5308 days | 1% |
| Natascha Rachel | 3/10 | 5516 days | 0% |
| P Bukal | 10/10 | 5550 days | 1% |
| Kendall | 8/10 | 5554 days | 1% |
| Michael Simmang | 10/10 | 5559 days | 1% |
| Dave Patterson | 8/10 | 5562 days | 1% |
| Jerven and Kim | 3/10 | 5564 days | 0% |
| Katy Bourne | 7/10 | 5565 days | 1% |
| Claudio | 3/10 | 5577 days | 0% |
| Walter Peters | 9/10 | 5583 days | 1% |
| Claire Hoyland | 9/10 | 5586 days | 1% |
| Eva Stauderova | 9/10 | 5590 days | 1% |
| Amanda Craig | 7/10 | 5593 days | 1% |
| D Oostrum | 8/10 | 5594 days | 1% |
| C Gobl | 8/10 | 5598 days | 1% |
| Rosey834 | 9/10 | 5661 days | 1% |
| JimBradshaw | 9/10 | 5814 days | 1% |
| KieranE | 7/10 | 5875 days | 1% |
| Victoria Slater | 10/10 | 5910 days | 1% |
| Andy & Louise Dutton | 10/10 | 5923 days | 1% |
| Leonard Vans | 7/10 | 5936 days | 1% |
| Cecile | 9/10 | 5939 days | 1% |
| Maria Lorentzen | 9/10 | 5943 days | 1% |
| Sue Bennett | 9/10 | 5946 days | 1% |
| Robert Trostle | 10/10 | 5949 days | 1% |
| Mark | 8/10 | 5955 days | 1% |
| Bram-Jan M | 8/10 | 5963 days | 1% |
| Sebastian Kramer | 4/10 | 5970 days | 0% |
| Maarten | 9/10 | 5973 days | 1% |
| varenaee | 9/10 | 6011 days | 1% |
| Trisha T | 9/10 | 6026 days | 1% |
| Bue Verrept | 8/10 | 6033 days | 1% |
| Wim Put | 9/10 | 6052 days | 1% |
| Poonam Patel | 10/10 | 6167 days | 1% |
| KYinNZ | 9/10 | 6179 days | 1% |
| monniere | 8/10 | 6180 days | 1% |
| YohanM | 7/10 | 6265 days | 1% |
| David | 9/10 | 6270 days | 1% |
| Andrew | 8/10 | 6270 days | 1% |
| Yvanna | 7/10 | 6289 days | 1% |
| Maria | 8/10 | 6293 days | 1% |
| SarahK | 10/10 | 6303 days | 1% |
| RachelR | 9/10 | 6303 days | 1% |
| SofiaBrazil | 10/10 | 6303 days | 1% |
| MartinG | 8/10 | 6303 days | 1% |
| TatiamT | 10/10 | 6303 days | 1% |
| PellucoFrance | 8/10 | 6304 days | 1% |
| Ole | 8/10 | 6310 days | 1% |
| Tessa | 10/10 | 6320 days | 1% |
| DaraghD | 8/10 | 6327 days | 1% |
| Annika | 4/10 | 6334 days | 0% |
| Kirk | 6/10 | 6338 days | 1% |
| Evangelista | 6/10 | 6342 days | 1% |
| Corinna | 7/10 | 6344 days | 1% |
| Maud | 7/10 | 6374 days | 1% |
| Spyfox | 10/10 | 6376 days | 1% |
| Inga | 7/10 | 6395 days | 1% |
| Sabrina | 9/10 | 6401 days | 1% |
| Nadia | 7/10 | 6403 days | 1% |
| Gayle | 8/10 | 6427 days | 1% |
| Rebekka | 9/10 | 6433 days | 1% |
| Antonella | 10/10 | 6444 days | 1% |
| teamaustria | 9/10 | 6459 days | 1% |
| Katja | 7/10 | 6476 days | 1% |
| Fiona | 10/10 | 6489 days | 1% |
| Louise | 8/10 | 6489 days | 1% |
| fgregory | 10/10 | 6532 days | 1% |
| Bonny Doon | 6/10 | 6533 days | 1% |
| Toni Keown | 3/10 | 6625 days | 0% |
| Naoko | 5/10 | 6636 days | 1% |
| Olaf Penn | 7/10 | 6661 days | 1% |
| Mie Toft Pedersen | 10/10 | 6666 days | 1% |
| Tobias Rahm | 6/10 | 6675 days | 1% |
| Haemnerli | 8/10 | 6675 days | 1% |
| Maruja | 9/10 | 6713 days | 1% |
| Maria | 5/10 | 6713 days | 1% |
| Amanda Finger | 9/10 | 6718 days | 1% |
| Desiree Muri | 10/10 | 6718 days | 1% |
| Andrew Porter | 8/10 | 6718 days | 1% |
| Kay | 9/10 | 6741 days | 1% |
| Martin Nigschit | 6/10 | 6744 days | 1% |
| lawrence Walker | 8/10 | 6744 days | 1% |
| Fiona | 9/10 | 6751 days | 1% |
| Neil Cooke | 7/10 | 6752 days | 1% |
| Willemien | 8/10 | 6762 days | 1% |
| Kimberley Mayer | 9/10 | 6762 days | 1% |
| Kim | 10/10 | 6957 days | 1% |
| Stacey | 7/10 | 6980 days | 1% |
| Michael | 8/10 | 6993 days | 1% |
| Jules | 6/10 | 6998 days | 1% |
| Fran | 7/10 | 7000 days | 1% |
| Dave | 6/10 | 7000 days | 1% |
| Bas Marieke | 8/10 | 7011 days | 1% |
| Detlef | 4/10 | 7014 days | 0% |
| Jenny | 7/10 | 7016 days | 1% |
| Duncan | 7/10 | 7029 days | 1% |
| Nissa | 6/10 | 7035 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
-0.12% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 106 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 10 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 7 | -0.09% |
| 8 | -0.10% |
| 9 | -0.11% |
| 10 | -0.12% |
| 11 | -0.13% |
| 12 | -0.15% |
| 13 | -0.16% |
| … | … |
Balancing Adjustment
11.53% 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
76%
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.