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
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
80.11%
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 | 3412 days | 54% |
| Margot | 7/10 | 3415 days | 95% |
| Philip Sheridan | 7/10 | 3424 days | 94% |
| John Edwards | 9/10 | 3441 days | 100% |
| Cathy La Frenais | 8/10 | 3682 days | 62% |
| Marie Bocquier | 8/10 | 3691 days | 61% |
| Felix | 8/10 | 3726 days | 56% |
| Fabian | 7/10 | 3727 days | 51% |
| Juro | 7/10 | 3727 days | 51% |
| Sandra | 7/10 | 3737 days | 49% |
| Franziska and Sabine | 8/10 | 3745 days | 53% |
| Martina | 8/10 | 3753 days | 52% |
| Jessie Sabine | 7/10 | 4453 days | 30% |
| Matthew Trezise | 7/10 | 4453 days | 30% |
| Frederic Gazzarin | 10/10 | 4458 days | 36% |
| Patricia Gazzarin | 9/10 | 4458 days | 35% |
| Melissa Hermansson | 8/10 | 4461 days | 34% |
| Thi Baut | 9/10 | 4498 days | 35% |
| Alice Berg | 8/10 | 4792 days | 34% |
| nl | 9/10 | 4901 days | 35% |
| Peter Kent | 9/10 | 5151 days | 35% |
| Antoine Lacoste | 6/10 | 5157 days | 25% |
| Hanna Clement | 6/10 | 5158 days | 25% |
| Numa Brouimet | 8/10 | 5160 days | 34% |
| Darina Kvasnicova | 8/10 | 5166 days | 34% |
| Richard Harvey | 9/10 | 5173 days | 35% |
| Mark Bogton | 9/10 | 5173 days | 35% |
| Hannah Bean | 7/10 | 5175 days | 30% |
| Elise Violet | 7/10 | 5177 days | 30% |
| Dominique | 8/10 | 5177 days | 34% |
| Lepied | 8/10 | 5180 days | 34% |
| Kimberley Mills | 10/10 | 5180 days | 36% |
| John Reynolds | 8/10 | 5188 days | 34% |
| Kurt Furuskar | 9/10 | 5204 days | 35% |
| Barsch, Arwed & Gertrud | 10/10 | 5224 days | 36% |
| Jan & Marian | 10/10 | 5267 days | 36% |
| Natascha Rachel | 3/10 | 5475 days | 0% |
| P Bukal | 10/10 | 5509 days | 36% |
| Kendall | 8/10 | 5513 days | 34% |
| Michael Simmang | 10/10 | 5518 days | 36% |
| Dave Patterson | 8/10 | 5521 days | 34% |
| Jerven and Kim | 3/10 | 5523 days | 0% |
| Katy Bourne | 7/10 | 5524 days | 30% |
| Claudio | 3/10 | 5536 days | 0% |
| Walter Peters | 9/10 | 5542 days | 35% |
| Claire Hoyland | 9/10 | 5545 days | 35% |
| Eva Stauderova | 9/10 | 5549 days | 35% |
| Amanda Craig | 7/10 | 5552 days | 30% |
| D Oostrum | 8/10 | 5553 days | 34% |
| C Gobl | 8/10 | 5557 days | 34% |
| Rosey834 | 9/10 | 5620 days | 35% |
| JimBradshaw | 9/10 | 5773 days | 35% |
| KieranE | 7/10 | 5834 days | 30% |
| Victoria Slater | 10/10 | 5869 days | 36% |
| Andy & Louise Dutton | 10/10 | 5882 days | 36% |
| Leonard Vans | 7/10 | 5895 days | 30% |
| Cecile | 9/10 | 5898 days | 35% |
| Maria Lorentzen | 9/10 | 5902 days | 35% |
| Sue Bennett | 9/10 | 5905 days | 35% |
| Robert Trostle | 10/10 | 5908 days | 36% |
| Mark | 8/10 | 5914 days | 34% |
| Bram-Jan M | 8/10 | 5922 days | 34% |
| Sebastian Kramer | 4/10 | 5929 days | 9% |
| Maarten | 9/10 | 5932 days | 35% |
| varenaee | 9/10 | 5970 days | 35% |
| Trisha T | 9/10 | 5985 days | 35% |
| Bue Verrept | 8/10 | 5992 days | 34% |
| Wim Put | 9/10 | 6011 days | 35% |
| Poonam Patel | 10/10 | 6126 days | 36% |
| KYinNZ | 9/10 | 6138 days | 35% |
| monniere | 8/10 | 6139 days | 34% |
| YohanM | 7/10 | 6224 days | 30% |
| David | 9/10 | 6229 days | 35% |
| Andrew | 8/10 | 6229 days | 34% |
| Yvanna | 7/10 | 6248 days | 30% |
| Maria | 8/10 | 6252 days | 34% |
| SarahK | 10/10 | 6262 days | 36% |
| RachelR | 9/10 | 6262 days | 35% |
| SofiaBrazil | 10/10 | 6262 days | 36% |
| MartinG | 8/10 | 6262 days | 34% |
| TatiamT | 10/10 | 6262 days | 36% |
| PellucoFrance | 8/10 | 6263 days | 34% |
| Ole | 8/10 | 6269 days | 34% |
| Tessa | 10/10 | 6279 days | 36% |
| DaraghD | 8/10 | 6286 days | 34% |
| Annika | 4/10 | 6293 days | 9% |
| Kirk | 6/10 | 6297 days | 25% |
| Evangelista | 6/10 | 6301 days | 25% |
| Corinna | 7/10 | 6303 days | 30% |
| Maud | 7/10 | 6333 days | 30% |
| Spyfox | 10/10 | 6335 days | 36% |
| Inga | 7/10 | 6354 days | 30% |
| Sabrina | 9/10 | 6360 days | 35% |
| Nadia | 7/10 | 6362 days | 30% |
| Gayle | 8/10 | 6385 days | 34% |
| Rebekka | 9/10 | 6392 days | 35% |
| Antonella | 10/10 | 6403 days | 36% |
| teamaustria | 9/10 | 6418 days | 35% |
| Katja | 7/10 | 6435 days | 30% |
| Fiona | 10/10 | 6448 days | 36% |
| Louise | 8/10 | 6448 days | 34% |
| fgregory | 10/10 | 6491 days | 36% |
| Bonny Doon | 6/10 | 6492 days | 25% |
| Toni Keown | 3/10 | 6584 days | 0% |
| Naoko | 5/10 | 6595 days | 17% |
| Olaf Penn | 7/10 | 6620 days | 30% |
| Mie Toft Pedersen | 10/10 | 6625 days | 36% |
| Tobias Rahm | 6/10 | 6634 days | 25% |
| Haemnerli | 8/10 | 6634 days | 34% |
| Maruja | 9/10 | 6672 days | 35% |
| Maria | 5/10 | 6672 days | 17% |
| Amanda Finger | 9/10 | 6677 days | 35% |
| Desiree Muri | 10/10 | 6677 days | 36% |
| Andrew Porter | 8/10 | 6677 days | 34% |
| Kay | 9/10 | 6700 days | 35% |
| Martin Nigschit | 6/10 | 6703 days | 25% |
| lawrence Walker | 8/10 | 6703 days | 34% |
| Fiona | 9/10 | 6710 days | 35% |
| Neil Cooke | 7/10 | 6711 days | 30% |
| Willemien | 8/10 | 6721 days | 34% |
| Kimberley Mayer | 9/10 | 6721 days | 35% |
| Kim | 10/10 | 6916 days | 36% |
| Stacey | 7/10 | 6939 days | 30% |
| Michael | 8/10 | 6952 days | 34% |
| Jules | 6/10 | 6957 days | 25% |
| Fran | 7/10 | 6959 days | 30% |
| Dave | 6/10 | 6959 days | 25% |
| Bas Marieke | 8/10 | 6970 days | 34% |
| Detlef | 4/10 | 6973 days | 9% |
| Jenny | 7/10 | 6975 days | 30% |
| Duncan | 7/10 | 6988 days | 30% |
| Nissa | 6/10 | 6994 days | 25% |
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
-3.34% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 70 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 | -3.29% |
| 198 | -3.30% |
| 199 | -3.32% |
| 200 | -3.34% |
| 201 | -3.35% |
| 202 | -3.37% |
| 203 | -3.39% |
| … | … |
Balancing Adjustment
3.99% 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
81%
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.