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
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 | 3275 days | 67% |
| Margot | 7/10 | 3278 days | 96% |
| Philip Sheridan | 7/10 | 3287 days | 95% |
| John Edwards | 9/10 | 3304 days | 100% |
| Cathy La Frenais | 8/10 | 3545 days | 76% |
| Marie Bocquier | 8/10 | 3554 days | 76% |
| Felix | 8/10 | 3589 days | 72% |
| Fabian | 7/10 | 3590 days | 68% |
| Juro | 7/10 | 3590 days | 68% |
| Sandra | 7/10 | 3600 days | 68% |
| Franziska and Sabine | 8/10 | 3608 days | 71% |
| Martina | 8/10 | 3616 days | 70% |
| Jessie Sabine | 7/10 | 4316 days | 4% |
| Matthew Trezise | 7/10 | 4316 days | 4% |
| Frederic Gazzarin | 10/10 | 4321 days | 4% |
| Patricia Gazzarin | 9/10 | 4321 days | 4% |
| Melissa Hermansson | 8/10 | 4324 days | 3% |
| Thi Baut | 9/10 | 4361 days | 0% |
| Alice Berg | 8/10 | 4655 days | 46% |
| nl | 9/10 | 4764 days | 47% |
| Peter Kent | 9/10 | 5014 days | 47% |
| Antoine Lacoste | 6/10 | 5020 days | 40% |
| Hanna Clement | 6/10 | 5021 days | 40% |
| Numa Brouimet | 8/10 | 5023 days | 46% |
| Darina Kvasnicova | 8/10 | 5029 days | 46% |
| Richard Harvey | 9/10 | 5036 days | 47% |
| Mark Bogton | 9/10 | 5036 days | 47% |
| Hannah Bean | 7/10 | 5038 days | 44% |
| Elise Violet | 7/10 | 5040 days | 44% |
| Dominique | 8/10 | 5040 days | 46% |
| Lepied | 8/10 | 5043 days | 46% |
| Kimberley Mills | 10/10 | 5043 days | 47% |
| John Reynolds | 8/10 | 5051 days | 46% |
| Kurt Furuskar | 9/10 | 5067 days | 47% |
| Barsch, Arwed & Gertrud | 10/10 | 5087 days | 47% |
| Jan & Marian | 10/10 | 5130 days | 47% |
| Natascha Rachel | 3/10 | 5338 days | 25% |
| P Bukal | 10/10 | 5372 days | 47% |
| Kendall | 8/10 | 5376 days | 46% |
| Michael Simmang | 10/10 | 5381 days | 47% |
| Dave Patterson | 8/10 | 5384 days | 46% |
| Jerven and Kim | 3/10 | 5386 days | 25% |
| Katy Bourne | 7/10 | 5387 days | 44% |
| Claudio | 3/10 | 5399 days | 25% |
| Walter Peters | 9/10 | 5405 days | 47% |
| Claire Hoyland | 9/10 | 5408 days | 47% |
| Eva Stauderova | 9/10 | 5412 days | 47% |
| Amanda Craig | 7/10 | 5415 days | 44% |
| D Oostrum | 8/10 | 5416 days | 46% |
| C Gobl | 8/10 | 5420 days | 46% |
| Rosey834 | 9/10 | 5483 days | 47% |
| JimBradshaw | 9/10 | 5636 days | 47% |
| KieranE | 7/10 | 5697 days | 44% |
| Victoria Slater | 10/10 | 5732 days | 47% |
| Andy & Louise Dutton | 10/10 | 5745 days | 47% |
| Leonard Vans | 7/10 | 5758 days | 44% |
| Cecile | 9/10 | 5761 days | 47% |
| Maria Lorentzen | 9/10 | 5765 days | 47% |
| Sue Bennett | 9/10 | 5768 days | 47% |
| Robert Trostle | 10/10 | 5771 days | 47% |
| Mark | 8/10 | 5777 days | 46% |
| Bram-Jan M | 8/10 | 5785 days | 46% |
| Sebastian Kramer | 4/10 | 5792 days | 30% |
| Maarten | 9/10 | 5795 days | 47% |
| varenaee | 9/10 | 5833 days | 47% |
| Trisha T | 9/10 | 5848 days | 47% |
| Bue Verrept | 8/10 | 5855 days | 46% |
| Wim Put | 9/10 | 5874 days | 47% |
| Poonam Patel | 10/10 | 5989 days | 47% |
| KYinNZ | 9/10 | 6001 days | 47% |
| monniere | 8/10 | 6002 days | 46% |
| YohanM | 7/10 | 6087 days | 44% |
| David | 9/10 | 6092 days | 47% |
| Andrew | 8/10 | 6092 days | 46% |
| Yvanna | 7/10 | 6111 days | 44% |
| Maria | 8/10 | 6115 days | 46% |
| SarahK | 10/10 | 6125 days | 47% |
| RachelR | 9/10 | 6125 days | 47% |
| SofiaBrazil | 10/10 | 6125 days | 47% |
| MartinG | 8/10 | 6125 days | 46% |
| TatiamT | 10/10 | 6125 days | 47% |
| PellucoFrance | 8/10 | 6126 days | 46% |
| Ole | 8/10 | 6132 days | 46% |
| Tessa | 10/10 | 6142 days | 47% |
| DaraghD | 8/10 | 6149 days | 46% |
| Annika | 4/10 | 6156 days | 30% |
| Kirk | 6/10 | 6160 days | 40% |
| Evangelista | 6/10 | 6164 days | 40% |
| Corinna | 7/10 | 6166 days | 44% |
| Maud | 7/10 | 6196 days | 44% |
| Spyfox | 10/10 | 6198 days | 47% |
| Inga | 7/10 | 6217 days | 44% |
| Sabrina | 9/10 | 6223 days | 47% |
| Nadia | 7/10 | 6225 days | 44% |
| Gayle | 8/10 | 6248 days | 46% |
| Rebekka | 9/10 | 6255 days | 47% |
| Antonella | 10/10 | 6266 days | 47% |
| teamaustria | 9/10 | 6281 days | 47% |
| Katja | 7/10 | 6298 days | 44% |
| Fiona | 10/10 | 6311 days | 47% |
| Louise | 8/10 | 6311 days | 46% |
| fgregory | 10/10 | 6354 days | 47% |
| Bonny Doon | 6/10 | 6355 days | 40% |
| Toni Keown | 3/10 | 6447 days | 25% |
| Naoko | 5/10 | 6458 days | 35% |
| Olaf Penn | 7/10 | 6483 days | 44% |
| Mie Toft Pedersen | 10/10 | 6488 days | 47% |
| Tobias Rahm | 6/10 | 6497 days | 40% |
| Haemnerli | 8/10 | 6497 days | 46% |
| Maruja | 9/10 | 6535 days | 47% |
| Maria | 5/10 | 6535 days | 35% |
| Amanda Finger | 9/10 | 6540 days | 47% |
| Desiree Muri | 10/10 | 6540 days | 47% |
| Andrew Porter | 8/10 | 6540 days | 46% |
| Kay | 9/10 | 6563 days | 47% |
| Martin Nigschit | 6/10 | 6566 days | 40% |
| lawrence Walker | 8/10 | 6566 days | 46% |
| Fiona | 9/10 | 6573 days | 47% |
| Neil Cooke | 7/10 | 6574 days | 44% |
| Willemien | 8/10 | 6584 days | 46% |
| Kimberley Mayer | 9/10 | 6584 days | 47% |
| Kim | 10/10 | 6779 days | 47% |
| Stacey | 7/10 | 6802 days | 44% |
| Michael | 8/10 | 6815 days | 46% |
| Jules | 6/10 | 6820 days | 40% |
| Fran | 7/10 | 6822 days | 44% |
| Dave | 6/10 | 6822 days | 40% |
| Bas Marieke | 8/10 | 6833 days | 46% |
| Detlef | 4/10 | 6836 days | 30% |
| Jenny | 7/10 | 6838 days | 44% |
| Duncan | 7/10 | 6851 days | 44% |
| Nissa | 6/10 | 6857 days | 40% |
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.