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
80.05%
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 | 3351 days | 55% |
| Margot | 7/10 | 3354 days | 95% |
| Philip Sheridan | 7/10 | 3363 days | 94% |
| John Edwards | 9/10 | 3380 days | 100% |
| Cathy La Frenais | 8/10 | 3621 days | 65% |
| Marie Bocquier | 8/10 | 3630 days | 64% |
| Felix | 8/10 | 3665 days | 59% |
| Fabian | 7/10 | 3666 days | 54% |
| Juro | 7/10 | 3666 days | 54% |
| Sandra | 7/10 | 3676 days | 53% |
| Franziska and Sabine | 8/10 | 3684 days | 57% |
| Martina | 8/10 | 3692 days | 56% |
| Jessie Sabine | 7/10 | 4392 days | 28% |
| Matthew Trezise | 7/10 | 4392 days | 28% |
| Frederic Gazzarin | 10/10 | 4397 days | 33% |
| Patricia Gazzarin | 9/10 | 4397 days | 32% |
| Melissa Hermansson | 8/10 | 4400 days | 31% |
| Thi Baut | 9/10 | 4437 days | 32% |
| Alice Berg | 8/10 | 4731 days | 31% |
| nl | 9/10 | 4840 days | 32% |
| Peter Kent | 9/10 | 5090 days | 32% |
| Antoine Lacoste | 6/10 | 5096 days | 23% |
| Hanna Clement | 6/10 | 5097 days | 23% |
| Numa Brouimet | 8/10 | 5099 days | 31% |
| Darina Kvasnicova | 8/10 | 5105 days | 31% |
| Richard Harvey | 9/10 | 5112 days | 32% |
| Mark Bogton | 9/10 | 5112 days | 32% |
| Hannah Bean | 7/10 | 5114 days | 28% |
| Elise Violet | 7/10 | 5116 days | 28% |
| Dominique | 8/10 | 5116 days | 31% |
| Lepied | 8/10 | 5119 days | 31% |
| Kimberley Mills | 10/10 | 5119 days | 33% |
| John Reynolds | 8/10 | 5127 days | 31% |
| Kurt Furuskar | 9/10 | 5143 days | 32% |
| Barsch, Arwed & Gertrud | 10/10 | 5163 days | 33% |
| Jan & Marian | 10/10 | 5206 days | 33% |
| Natascha Rachel | 3/10 | 5414 days | 0% |
| P Bukal | 10/10 | 5448 days | 33% |
| Kendall | 8/10 | 5452 days | 31% |
| Michael Simmang | 10/10 | 5457 days | 33% |
| Dave Patterson | 8/10 | 5460 days | 31% |
| Jerven and Kim | 3/10 | 5462 days | 0% |
| Katy Bourne | 7/10 | 5463 days | 28% |
| Claudio | 3/10 | 5475 days | 0% |
| Walter Peters | 9/10 | 5481 days | 32% |
| Claire Hoyland | 9/10 | 5484 days | 32% |
| Eva Stauderova | 9/10 | 5488 days | 32% |
| Amanda Craig | 7/10 | 5491 days | 28% |
| D Oostrum | 8/10 | 5492 days | 31% |
| C Gobl | 8/10 | 5496 days | 31% |
| Rosey834 | 9/10 | 5559 days | 32% |
| JimBradshaw | 9/10 | 5712 days | 32% |
| KieranE | 7/10 | 5773 days | 28% |
| Victoria Slater | 10/10 | 5808 days | 33% |
| Andy & Louise Dutton | 10/10 | 5821 days | 33% |
| Leonard Vans | 7/10 | 5834 days | 28% |
| Cecile | 9/10 | 5837 days | 32% |
| Maria Lorentzen | 9/10 | 5841 days | 32% |
| Sue Bennett | 9/10 | 5844 days | 32% |
| Robert Trostle | 10/10 | 5847 days | 33% |
| Mark | 8/10 | 5853 days | 31% |
| Bram-Jan M | 8/10 | 5861 days | 31% |
| Sebastian Kramer | 4/10 | 5868 days | 8% |
| Maarten | 9/10 | 5871 days | 32% |
| varenaee | 9/10 | 5909 days | 32% |
| Trisha T | 9/10 | 5924 days | 32% |
| Bue Verrept | 8/10 | 5931 days | 31% |
| Wim Put | 9/10 | 5950 days | 32% |
| Poonam Patel | 10/10 | 6065 days | 33% |
| KYinNZ | 9/10 | 6077 days | 32% |
| monniere | 8/10 | 6078 days | 31% |
| YohanM | 7/10 | 6163 days | 28% |
| David | 9/10 | 6168 days | 32% |
| Andrew | 8/10 | 6168 days | 31% |
| Yvanna | 7/10 | 6187 days | 28% |
| Maria | 8/10 | 6192 days | 31% |
| SarahK | 10/10 | 6201 days | 33% |
| RachelR | 9/10 | 6201 days | 32% |
| SofiaBrazil | 10/10 | 6201 days | 33% |
| MartinG | 8/10 | 6201 days | 31% |
| TatiamT | 10/10 | 6201 days | 33% |
| PellucoFrance | 8/10 | 6202 days | 31% |
| Ole | 8/10 | 6208 days | 31% |
| Tessa | 10/10 | 6219 days | 33% |
| DaraghD | 8/10 | 6225 days | 31% |
| Annika | 4/10 | 6233 days | 8% |
| Kirk | 6/10 | 6236 days | 23% |
| Evangelista | 6/10 | 6240 days | 23% |
| Corinna | 7/10 | 6242 days | 28% |
| Maud | 7/10 | 6272 days | 28% |
| Spyfox | 10/10 | 6275 days | 33% |
| Inga | 7/10 | 6294 days | 28% |
| Sabrina | 9/10 | 6300 days | 32% |
| Nadia | 7/10 | 6302 days | 28% |
| Gayle | 8/10 | 6325 days | 31% |
| Rebekka | 9/10 | 6332 days | 32% |
| Antonella | 10/10 | 6343 days | 33% |
| teamaustria | 9/10 | 6357 days | 32% |
| Katja | 7/10 | 6375 days | 28% |
| Fiona | 10/10 | 6388 days | 33% |
| Louise | 8/10 | 6388 days | 31% |
| fgregory | 10/10 | 6431 days | 33% |
| Bonny Doon | 6/10 | 6431 days | 23% |
| Toni Keown | 3/10 | 6523 days | 0% |
| Naoko | 5/10 | 6534 days | 16% |
| Olaf Penn | 7/10 | 6559 days | 28% |
| Mie Toft Pedersen | 10/10 | 6564 days | 33% |
| Tobias Rahm | 6/10 | 6573 days | 23% |
| Haemnerli | 8/10 | 6573 days | 31% |
| Maruja | 9/10 | 6611 days | 32% |
| Maria | 5/10 | 6611 days | 16% |
| Amanda Finger | 9/10 | 6616 days | 32% |
| Desiree Muri | 10/10 | 6616 days | 33% |
| Andrew Porter | 8/10 | 6616 days | 31% |
| Kay | 9/10 | 6639 days | 32% |
| Martin Nigschit | 6/10 | 6642 days | 23% |
| lawrence Walker | 8/10 | 6642 days | 31% |
| Fiona | 9/10 | 6649 days | 32% |
| Neil Cooke | 7/10 | 6650 days | 28% |
| Willemien | 8/10 | 6660 days | 31% |
| Kimberley Mayer | 9/10 | 6660 days | 32% |
| Kim | 10/10 | 6855 days | 33% |
| Stacey | 7/10 | 6878 days | 28% |
| Michael | 8/10 | 6891 days | 31% |
| Jules | 6/10 | 6896 days | 23% |
| Fran | 7/10 | 6898 days | 28% |
| Dave | 6/10 | 6898 days | 23% |
| Bas Marieke | 8/10 | 6909 days | 31% |
| Detlef | 4/10 | 6912 days | 8% |
| Jenny | 7/10 | 6914 days | 28% |
| Duncan | 7/10 | 6927 days | 28% |
| Nissa | 6/10 | 6933 days | 23% |
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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 53 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.19% |
| 203 | -4.21% |
| … | … |
Balancing Adjustment
4.30% 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.