Hey, 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
63.28%
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 | 111 days | 100% |
| Joonas Lehtomaki | 4/10 | 3533 days | 1% |
| Margot | 7/10 | 3536 days | 2% |
| Philip Sheridan | 7/10 | 3545 days | 2% |
| John Edwards | 9/10 | 3562 days | 3% |
| Cathy La Frenais | 8/10 | 3803 days | 1% |
| Marie Bocquier | 8/10 | 3812 days | 1% |
| Felix | 8/10 | 3847 days | 1% |
| Fabian | 7/10 | 3848 days | 1% |
| Juro | 7/10 | 3848 days | 1% |
| Sandra | 7/10 | 3858 days | 1% |
| Franziska and Sabine | 8/10 | 3866 days | 1% |
| Martina | 8/10 | 3874 days | 1% |
| Jessie Sabine | 7/10 | 4574 days | 1% |
| Matthew Trezise | 7/10 | 4574 days | 1% |
| Frederic Gazzarin | 10/10 | 4579 days | 1% |
| Patricia Gazzarin | 9/10 | 4579 days | 1% |
| Melissa Hermansson | 8/10 | 4582 days | 1% |
| Thi Baut | 9/10 | 4619 days | 1% |
| Alice Berg | 8/10 | 4913 days | 1% |
| nl | 9/10 | 5022 days | 1% |
| Peter Kent | 9/10 | 5272 days | 1% |
| Antoine Lacoste | 6/10 | 5278 days | 1% |
| Hanna Clement | 6/10 | 5279 days | 1% |
| Numa Brouimet | 8/10 | 5281 days | 1% |
| Darina Kvasnicova | 8/10 | 5287 days | 1% |
| Richard Harvey | 9/10 | 5294 days | 1% |
| Mark Bogton | 9/10 | 5294 days | 1% |
| Hannah Bean | 7/10 | 5296 days | 1% |
| Elise Violet | 7/10 | 5298 days | 1% |
| Dominique | 8/10 | 5298 days | 1% |
| Lepied | 8/10 | 5301 days | 1% |
| Kimberley Mills | 10/10 | 5301 days | 1% |
| John Reynolds | 8/10 | 5309 days | 1% |
| Kurt Furuskar | 9/10 | 5325 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5345 days | 1% |
| Jan & Marian | 10/10 | 5388 days | 1% |
| Natascha Rachel | 3/10 | 5596 days | 0% |
| P Bukal | 10/10 | 5630 days | 1% |
| Kendall | 8/10 | 5634 days | 1% |
| Michael Simmang | 10/10 | 5639 days | 1% |
| Dave Patterson | 8/10 | 5642 days | 1% |
| Jerven and Kim | 3/10 | 5644 days | 0% |
| Katy Bourne | 7/10 | 5645 days | 1% |
| Claudio | 3/10 | 5657 days | 0% |
| Walter Peters | 9/10 | 5663 days | 1% |
| Claire Hoyland | 9/10 | 5666 days | 1% |
| Eva Stauderova | 9/10 | 5670 days | 1% |
| Amanda Craig | 7/10 | 5673 days | 1% |
| D Oostrum | 8/10 | 5674 days | 1% |
| C Gobl | 8/10 | 5678 days | 1% |
| Rosey834 | 9/10 | 5741 days | 1% |
| JimBradshaw | 9/10 | 5894 days | 1% |
| KieranE | 7/10 | 5955 days | 1% |
| Victoria Slater | 10/10 | 5990 days | 1% |
| Andy & Louise Dutton | 10/10 | 6003 days | 1% |
| Leonard Vans | 7/10 | 6016 days | 1% |
| Cecile | 9/10 | 6019 days | 1% |
| Maria Lorentzen | 9/10 | 6023 days | 1% |
| Sue Bennett | 9/10 | 6026 days | 1% |
| Robert Trostle | 10/10 | 6029 days | 1% |
| Mark | 8/10 | 6035 days | 1% |
| Bram-Jan M | 8/10 | 6043 days | 1% |
| Sebastian Kramer | 4/10 | 6050 days | 0% |
| Maarten | 9/10 | 6053 days | 1% |
| varenaee | 9/10 | 6091 days | 1% |
| Trisha T | 9/10 | 6106 days | 1% |
| Bue Verrept | 8/10 | 6113 days | 1% |
| Wim Put | 9/10 | 6132 days | 1% |
| Poonam Patel | 10/10 | 6247 days | 1% |
| KYinNZ | 9/10 | 6259 days | 1% |
| monniere | 8/10 | 6260 days | 1% |
| YohanM | 7/10 | 6345 days | 1% |
| David | 9/10 | 6350 days | 1% |
| Andrew | 8/10 | 6350 days | 1% |
| Yvanna | 7/10 | 6370 days | 1% |
| Maria | 8/10 | 6374 days | 1% |
| SarahK | 10/10 | 6383 days | 1% |
| RachelR | 9/10 | 6383 days | 1% |
| SofiaBrazil | 10/10 | 6383 days | 1% |
| MartinG | 8/10 | 6383 days | 1% |
| TatiamT | 10/10 | 6383 days | 1% |
| PellucoFrance | 8/10 | 6384 days | 1% |
| Ole | 8/10 | 6391 days | 1% |
| Tessa | 10/10 | 6401 days | 1% |
| DaraghD | 8/10 | 6407 days | 1% |
| Annika | 4/10 | 6415 days | 0% |
| Kirk | 6/10 | 6419 days | 1% |
| Evangelista | 6/10 | 6423 days | 1% |
| Corinna | 7/10 | 6425 days | 1% |
| Maud | 7/10 | 6455 days | 1% |
| Spyfox | 10/10 | 6457 days | 1% |
| Inga | 7/10 | 6476 days | 1% |
| Sabrina | 9/10 | 6482 days | 1% |
| Nadia | 7/10 | 6484 days | 1% |
| Gayle | 8/10 | 6507 days | 1% |
| Rebekka | 9/10 | 6514 days | 1% |
| Antonella | 10/10 | 6525 days | 1% |
| teamaustria | 9/10 | 6540 days | 1% |
| Katja | 7/10 | 6557 days | 1% |
| Fiona | 10/10 | 6570 days | 1% |
| Louise | 8/10 | 6570 days | 1% |
| fgregory | 10/10 | 6613 days | 1% |
| Bonny Doon | 6/10 | 6613 days | 1% |
| Toni Keown | 3/10 | 6706 days | 0% |
| Naoko | 5/10 | 6716 days | 1% |
| Olaf Penn | 7/10 | 6741 days | 1% |
| Mie Toft Pedersen | 10/10 | 6746 days | 1% |
| Tobias Rahm | 6/10 | 6755 days | 1% |
| Haemnerli | 8/10 | 6755 days | 1% |
| Maruja | 9/10 | 6793 days | 1% |
| Maria | 5/10 | 6793 days | 1% |
| Amanda Finger | 9/10 | 6798 days | 1% |
| Desiree Muri | 10/10 | 6798 days | 1% |
| Andrew Porter | 8/10 | 6798 days | 1% |
| Kay | 9/10 | 6821 days | 1% |
| Martin Nigschit | 6/10 | 6824 days | 1% |
| lawrence Walker | 8/10 | 6824 days | 1% |
| Fiona | 9/10 | 6831 days | 1% |
| Neil Cooke | 7/10 | 6832 days | 1% |
| Willemien | 8/10 | 6842 days | 1% |
| Kimberley Mayer | 9/10 | 6842 days | 1% |
| Kim | 10/10 | 7037 days | 1% |
| Stacey | 7/10 | 7060 days | 1% |
| Michael | 8/10 | 7073 days | 1% |
| Jules | 6/10 | 7078 days | 1% |
| Fran | 7/10 | 7080 days | 1% |
| Dave | 6/10 | 7080 days | 1% |
| Bas Marieke | 8/10 | 7091 days | 1% |
| Detlef | 4/10 | 7094 days | 0% |
| Jenny | 7/10 | 7096 days | 1% |
| Duncan | 7/10 | 7109 days | 1% |
| Nissa | 6/10 | 7115 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
-1.08% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 109 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 91 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 88 | -1.05% |
| 89 | -1.06% |
| 90 | -1.07% |
| 91 | -1.08% |
| 92 | -1.10% |
| 93 | -1.11% |
| 94 | -1.12% |
| … | … |
Balancing Adjustment
12.28% 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.