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 | 3288 days | 68% |
| Margot | 7/10 | 3291 days | 96% |
| Philip Sheridan | 7/10 | 3300 days | 95% |
| John Edwards | 9/10 | 3317 days | 100% |
| Cathy La Frenais | 8/10 | 3558 days | 76% |
| Marie Bocquier | 8/10 | 3567 days | 76% |
| Felix | 8/10 | 3602 days | 72% |
| Fabian | 7/10 | 3603 days | 69% |
| Juro | 7/10 | 3603 days | 69% |
| Sandra | 7/10 | 3613 days | 68% |
| Franziska and Sabine | 8/10 | 3621 days | 71% |
| Martina | 8/10 | 3629 days | 70% |
| Jessie Sabine | 7/10 | 4329 days | 4% |
| Matthew Trezise | 7/10 | 4329 days | 4% |
| Frederic Gazzarin | 10/10 | 4334 days | 4% |
| Patricia Gazzarin | 9/10 | 4334 days | 4% |
| Melissa Hermansson | 8/10 | 4337 days | 3% |
| Thi Baut | 9/10 | 4374 days | 0% |
| Alice Berg | 8/10 | 4668 days | 47% |
| nl | 9/10 | 4777 days | 48% |
| Peter Kent | 9/10 | 5027 days | 48% |
| Antoine Lacoste | 6/10 | 5033 days | 41% |
| Hanna Clement | 6/10 | 5034 days | 41% |
| Numa Brouimet | 8/10 | 5036 days | 47% |
| Darina Kvasnicova | 8/10 | 5042 days | 47% |
| Richard Harvey | 9/10 | 5049 days | 48% |
| Mark Bogton | 9/10 | 5049 days | 48% |
| Hannah Bean | 7/10 | 5051 days | 45% |
| Elise Violet | 7/10 | 5053 days | 45% |
| Dominique | 8/10 | 5053 days | 47% |
| Lepied | 8/10 | 5056 days | 47% |
| Kimberley Mills | 10/10 | 5056 days | 48% |
| John Reynolds | 8/10 | 5064 days | 47% |
| Kurt Furuskar | 9/10 | 5080 days | 48% |
| Barsch, Arwed & Gertrud | 10/10 | 5100 days | 48% |
| Jan & Marian | 10/10 | 5143 days | 48% |
| Natascha Rachel | 3/10 | 5351 days | 26% |
| P Bukal | 10/10 | 5385 days | 48% |
| Kendall | 8/10 | 5389 days | 47% |
| Michael Simmang | 10/10 | 5394 days | 48% |
| Dave Patterson | 8/10 | 5397 days | 47% |
| Jerven and Kim | 3/10 | 5399 days | 26% |
| Katy Bourne | 7/10 | 5400 days | 45% |
| Claudio | 3/10 | 5412 days | 26% |
| Walter Peters | 9/10 | 5418 days | 48% |
| Claire Hoyland | 9/10 | 5421 days | 48% |
| Eva Stauderova | 9/10 | 5425 days | 48% |
| Amanda Craig | 7/10 | 5428 days | 45% |
| D Oostrum | 8/10 | 5429 days | 47% |
| C Gobl | 8/10 | 5433 days | 47% |
| Rosey834 | 9/10 | 5496 days | 48% |
| JimBradshaw | 9/10 | 5649 days | 48% |
| KieranE | 7/10 | 5710 days | 45% |
| Victoria Slater | 10/10 | 5745 days | 48% |
| Andy & Louise Dutton | 10/10 | 5758 days | 48% |
| Leonard Vans | 7/10 | 5771 days | 45% |
| Cecile | 9/10 | 5774 days | 48% |
| Maria Lorentzen | 9/10 | 5778 days | 48% |
| Sue Bennett | 9/10 | 5781 days | 48% |
| Robert Trostle | 10/10 | 5784 days | 48% |
| Mark | 8/10 | 5790 days | 47% |
| Bram-Jan M | 8/10 | 5798 days | 47% |
| Sebastian Kramer | 4/10 | 5805 days | 31% |
| Maarten | 9/10 | 5808 days | 48% |
| varenaee | 9/10 | 5846 days | 48% |
| Trisha T | 9/10 | 5861 days | 48% |
| Bue Verrept | 8/10 | 5868 days | 47% |
| Wim Put | 9/10 | 5887 days | 48% |
| Poonam Patel | 10/10 | 6002 days | 48% |
| KYinNZ | 9/10 | 6014 days | 48% |
| monniere | 8/10 | 6015 days | 47% |
| YohanM | 7/10 | 6100 days | 45% |
| David | 9/10 | 6105 days | 48% |
| Andrew | 8/10 | 6105 days | 47% |
| Yvanna | 7/10 | 6124 days | 45% |
| Maria | 8/10 | 6128 days | 47% |
| SarahK | 10/10 | 6138 days | 48% |
| RachelR | 9/10 | 6138 days | 48% |
| SofiaBrazil | 10/10 | 6138 days | 48% |
| MartinG | 8/10 | 6138 days | 47% |
| TatiamT | 10/10 | 6138 days | 48% |
| PellucoFrance | 8/10 | 6139 days | 47% |
| Ole | 8/10 | 6145 days | 47% |
| Tessa | 10/10 | 6155 days | 48% |
| DaraghD | 8/10 | 6162 days | 47% |
| Annika | 4/10 | 6169 days | 31% |
| Kirk | 6/10 | 6173 days | 41% |
| Evangelista | 6/10 | 6177 days | 41% |
| Corinna | 7/10 | 6179 days | 45% |
| Maud | 7/10 | 6209 days | 45% |
| Spyfox | 10/10 | 6211 days | 48% |
| Inga | 7/10 | 6231 days | 45% |
| Sabrina | 9/10 | 6236 days | 48% |
| Nadia | 7/10 | 6238 days | 45% |
| Gayle | 8/10 | 6262 days | 47% |
| Rebekka | 9/10 | 6269 days | 48% |
| Antonella | 10/10 | 6279 days | 48% |
| teamaustria | 9/10 | 6294 days | 48% |
| Katja | 7/10 | 6311 days | 45% |
| Fiona | 10/10 | 6324 days | 48% |
| Louise | 8/10 | 6324 days | 47% |
| fgregory | 10/10 | 6367 days | 48% |
| Bonny Doon | 6/10 | 6368 days | 41% |
| Toni Keown | 3/10 | 6460 days | 26% |
| Naoko | 5/10 | 6471 days | 37% |
| Olaf Penn | 7/10 | 6496 days | 45% |
| Mie Toft Pedersen | 10/10 | 6501 days | 48% |
| Tobias Rahm | 6/10 | 6510 days | 41% |
| Haemnerli | 8/10 | 6510 days | 47% |
| Maruja | 9/10 | 6548 days | 48% |
| Maria | 5/10 | 6548 days | 37% |
| Amanda Finger | 9/10 | 6553 days | 48% |
| Desiree Muri | 10/10 | 6553 days | 48% |
| Andrew Porter | 8/10 | 6553 days | 47% |
| Kay | 9/10 | 6576 days | 48% |
| Martin Nigschit | 6/10 | 6579 days | 41% |
| lawrence Walker | 8/10 | 6579 days | 47% |
| Fiona | 9/10 | 6586 days | 48% |
| Neil Cooke | 7/10 | 6587 days | 45% |
| Willemien | 8/10 | 6597 days | 47% |
| Kimberley Mayer | 9/10 | 6597 days | 48% |
| Kim | 10/10 | 6792 days | 48% |
| Stacey | 7/10 | 6815 days | 45% |
| Michael | 8/10 | 6828 days | 47% |
| Jules | 6/10 | 6833 days | 41% |
| Fran | 7/10 | 6835 days | 45% |
| Dave | 6/10 | 6835 days | 41% |
| Bas Marieke | 8/10 | 6846 days | 47% |
| Detlef | 4/10 | 6849 days | 31% |
| Jenny | 7/10 | 6851 days | 45% |
| Duncan | 7/10 | 6864 days | 45% |
| Nissa | 6/10 | 6870 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
-4.05% 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
4.35% 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.