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
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
79.83%
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 | 3278 days | 67% |
| Margot | 7/10 | 3281 days | 96% |
| Philip Sheridan | 7/10 | 3290 days | 95% |
| John Edwards | 9/10 | 3307 days | 100% |
| Cathy La Frenais | 8/10 | 3548 days | 76% |
| Marie Bocquier | 8/10 | 3557 days | 76% |
| Felix | 8/10 | 3592 days | 72% |
| Fabian | 7/10 | 3593 days | 68% |
| Juro | 7/10 | 3593 days | 68% |
| Sandra | 7/10 | 3603 days | 68% |
| Franziska and Sabine | 8/10 | 3611 days | 71% |
| Martina | 8/10 | 3619 days | 70% |
| Jessie Sabine | 7/10 | 4319 days | 4% |
| Matthew Trezise | 7/10 | 4319 days | 4% |
| Frederic Gazzarin | 10/10 | 4324 days | 4% |
| Patricia Gazzarin | 9/10 | 4324 days | 4% |
| Melissa Hermansson | 8/10 | 4327 days | 3% |
| Thi Baut | 9/10 | 4364 days | 0% |
| Alice Berg | 8/10 | 4658 days | 46% |
| nl | 9/10 | 4767 days | 47% |
| Peter Kent | 9/10 | 5017 days | 47% |
| Antoine Lacoste | 6/10 | 5023 days | 41% |
| Hanna Clement | 6/10 | 5024 days | 41% |
| Numa Brouimet | 8/10 | 5026 days | 46% |
| Darina Kvasnicova | 8/10 | 5032 days | 46% |
| Richard Harvey | 9/10 | 5039 days | 47% |
| Mark Bogton | 9/10 | 5039 days | 47% |
| Hannah Bean | 7/10 | 5041 days | 44% |
| Elise Violet | 7/10 | 5043 days | 44% |
| Dominique | 8/10 | 5043 days | 46% |
| Lepied | 8/10 | 5046 days | 46% |
| Kimberley Mills | 10/10 | 5046 days | 47% |
| John Reynolds | 8/10 | 5054 days | 46% |
| Kurt Furuskar | 9/10 | 5070 days | 47% |
| Barsch, Arwed & Gertrud | 10/10 | 5090 days | 47% |
| Jan & Marian | 10/10 | 5133 days | 47% |
| Natascha Rachel | 3/10 | 5341 days | 25% |
| P Bukal | 10/10 | 5375 days | 47% |
| Kendall | 8/10 | 5379 days | 46% |
| Michael Simmang | 10/10 | 5384 days | 47% |
| Dave Patterson | 8/10 | 5387 days | 46% |
| Jerven and Kim | 3/10 | 5389 days | 25% |
| Katy Bourne | 7/10 | 5390 days | 44% |
| Claudio | 3/10 | 5402 days | 25% |
| Walter Peters | 9/10 | 5408 days | 47% |
| Claire Hoyland | 9/10 | 5411 days | 47% |
| Eva Stauderova | 9/10 | 5415 days | 47% |
| Amanda Craig | 7/10 | 5418 days | 44% |
| D Oostrum | 8/10 | 5419 days | 46% |
| C Gobl | 8/10 | 5423 days | 46% |
| Rosey834 | 9/10 | 5486 days | 47% |
| JimBradshaw | 9/10 | 5639 days | 47% |
| KieranE | 7/10 | 5700 days | 44% |
| Victoria Slater | 10/10 | 5735 days | 47% |
| Andy & Louise Dutton | 10/10 | 5748 days | 47% |
| Leonard Vans | 7/10 | 5761 days | 44% |
| Cecile | 9/10 | 5764 days | 47% |
| Maria Lorentzen | 9/10 | 5768 days | 47% |
| Sue Bennett | 9/10 | 5771 days | 47% |
| Robert Trostle | 10/10 | 5774 days | 47% |
| Mark | 8/10 | 5780 days | 46% |
| Bram-Jan M | 8/10 | 5788 days | 46% |
| Sebastian Kramer | 4/10 | 5795 days | 30% |
| Maarten | 9/10 | 5798 days | 47% |
| varenaee | 9/10 | 5836 days | 47% |
| Trisha T | 9/10 | 5851 days | 47% |
| Bue Verrept | 8/10 | 5858 days | 46% |
| Wim Put | 9/10 | 5877 days | 47% |
| Poonam Patel | 10/10 | 5992 days | 47% |
| KYinNZ | 9/10 | 6004 days | 47% |
| monniere | 8/10 | 6005 days | 46% |
| YohanM | 7/10 | 6090 days | 44% |
| David | 9/10 | 6095 days | 47% |
| Andrew | 8/10 | 6095 days | 46% |
| Yvanna | 7/10 | 6114 days | 44% |
| Maria | 8/10 | 6118 days | 46% |
| SarahK | 10/10 | 6128 days | 47% |
| RachelR | 9/10 | 6128 days | 47% |
| SofiaBrazil | 10/10 | 6128 days | 47% |
| MartinG | 8/10 | 6128 days | 46% |
| TatiamT | 10/10 | 6128 days | 47% |
| PellucoFrance | 8/10 | 6129 days | 46% |
| Ole | 8/10 | 6135 days | 46% |
| Tessa | 10/10 | 6145 days | 47% |
| DaraghD | 8/10 | 6152 days | 46% |
| Annika | 4/10 | 6159 days | 30% |
| Kirk | 6/10 | 6163 days | 41% |
| Evangelista | 6/10 | 6167 days | 41% |
| Corinna | 7/10 | 6169 days | 44% |
| Maud | 7/10 | 6199 days | 44% |
| Spyfox | 10/10 | 6201 days | 47% |
| Inga | 7/10 | 6220 days | 44% |
| Sabrina | 9/10 | 6226 days | 47% |
| Nadia | 7/10 | 6228 days | 44% |
| Gayle | 8/10 | 6251 days | 46% |
| Rebekka | 9/10 | 6258 days | 47% |
| Antonella | 10/10 | 6269 days | 47% |
| teamaustria | 9/10 | 6284 days | 47% |
| Katja | 7/10 | 6301 days | 44% |
| Fiona | 10/10 | 6314 days | 47% |
| Louise | 8/10 | 6314 days | 46% |
| fgregory | 10/10 | 6357 days | 47% |
| Bonny Doon | 6/10 | 6358 days | 41% |
| Toni Keown | 3/10 | 6450 days | 25% |
| Naoko | 5/10 | 6461 days | 36% |
| Olaf Penn | 7/10 | 6486 days | 44% |
| Mie Toft Pedersen | 10/10 | 6491 days | 47% |
| Tobias Rahm | 6/10 | 6500 days | 41% |
| Haemnerli | 8/10 | 6500 days | 46% |
| Maruja | 9/10 | 6538 days | 47% |
| Maria | 5/10 | 6538 days | 36% |
| Amanda Finger | 9/10 | 6543 days | 47% |
| Desiree Muri | 10/10 | 6543 days | 47% |
| Andrew Porter | 8/10 | 6543 days | 46% |
| Kay | 9/10 | 6566 days | 47% |
| Martin Nigschit | 6/10 | 6569 days | 41% |
| lawrence Walker | 8/10 | 6569 days | 46% |
| Fiona | 9/10 | 6576 days | 47% |
| Neil Cooke | 7/10 | 6577 days | 44% |
| Willemien | 8/10 | 6587 days | 46% |
| Kimberley Mayer | 9/10 | 6587 days | 47% |
| Kim | 10/10 | 6782 days | 47% |
| Stacey | 7/10 | 6805 days | 44% |
| Michael | 8/10 | 6818 days | 46% |
| Jules | 6/10 | 6823 days | 41% |
| Fran | 7/10 | 6825 days | 44% |
| Dave | 6/10 | 6825 days | 41% |
| Bas Marieke | 8/10 | 6836 days | 46% |
| Detlef | 4/10 | 6839 days | 30% |
| Jenny | 7/10 | 6841 days | 44% |
| Duncan | 7/10 | 6854 days | 44% |
| Nissa | 6/10 | 6860 days | 41% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
4.36% 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
80%
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.