Hi, 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
79.93%
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 | 3311 days | 67% |
| Margot | 7/10 | 3314 days | 96% |
| Philip Sheridan | 7/10 | 3323 days | 95% |
| John Edwards | 9/10 | 3340 days | 100% |
| Cathy La Frenais | 8/10 | 3581 days | 76% |
| Marie Bocquier | 8/10 | 3590 days | 75% |
| Felix | 8/10 | 3625 days | 71% |
| Fabian | 7/10 | 3626 days | 68% |
| Juro | 7/10 | 3626 days | 68% |
| Sandra | 7/10 | 3636 days | 67% |
| Franziska and Sabine | 8/10 | 3644 days | 69% |
| Martina | 8/10 | 3652 days | 69% |
| Jessie Sabine | 7/10 | 4352 days | 1% |
| Matthew Trezise | 7/10 | 4352 days | 1% |
| Frederic Gazzarin | 10/10 | 4357 days | 0% |
| Patricia Gazzarin | 9/10 | 4357 days | 0% |
| Melissa Hermansson | 8/10 | 4360 days | 0% |
| Thi Baut | 9/10 | 4397 days | 48% |
| Alice Berg | 8/10 | 4691 days | 48% |
| nl | 9/10 | 4800 days | 48% |
| Peter Kent | 9/10 | 5050 days | 48% |
| Antoine Lacoste | 6/10 | 5056 days | 42% |
| Hanna Clement | 6/10 | 5057 days | 42% |
| Numa Brouimet | 8/10 | 5059 days | 48% |
| Darina Kvasnicova | 8/10 | 5065 days | 48% |
| Richard Harvey | 9/10 | 5072 days | 48% |
| Mark Bogton | 9/10 | 5072 days | 48% |
| Hannah Bean | 7/10 | 5074 days | 45% |
| Elise Violet | 7/10 | 5076 days | 45% |
| Dominique | 8/10 | 5076 days | 48% |
| Lepied | 8/10 | 5079 days | 48% |
| Kimberley Mills | 10/10 | 5079 days | 49% |
| John Reynolds | 8/10 | 5087 days | 48% |
| Kurt Furuskar | 9/10 | 5103 days | 48% |
| Barsch, Arwed & Gertrud | 10/10 | 5123 days | 49% |
| Jan & Marian | 10/10 | 5166 days | 49% |
| Natascha Rachel | 3/10 | 5374 days | 26% |
| P Bukal | 10/10 | 5408 days | 49% |
| Kendall | 8/10 | 5412 days | 48% |
| Michael Simmang | 10/10 | 5417 days | 49% |
| Dave Patterson | 8/10 | 5420 days | 48% |
| Jerven and Kim | 3/10 | 5422 days | 26% |
| Katy Bourne | 7/10 | 5423 days | 45% |
| Claudio | 3/10 | 5435 days | 26% |
| Walter Peters | 9/10 | 5441 days | 48% |
| Claire Hoyland | 9/10 | 5444 days | 48% |
| Eva Stauderova | 9/10 | 5448 days | 48% |
| Amanda Craig | 7/10 | 5451 days | 45% |
| D Oostrum | 8/10 | 5452 days | 48% |
| C Gobl | 8/10 | 5456 days | 48% |
| Rosey834 | 9/10 | 5519 days | 48% |
| JimBradshaw | 9/10 | 5672 days | 48% |
| KieranE | 7/10 | 5733 days | 45% |
| Victoria Slater | 10/10 | 5768 days | 49% |
| Andy & Louise Dutton | 10/10 | 5781 days | 49% |
| Leonard Vans | 7/10 | 5794 days | 45% |
| Cecile | 9/10 | 5797 days | 48% |
| Maria Lorentzen | 9/10 | 5801 days | 48% |
| Sue Bennett | 9/10 | 5804 days | 48% |
| Robert Trostle | 10/10 | 5807 days | 49% |
| Mark | 8/10 | 5813 days | 48% |
| Bram-Jan M | 8/10 | 5821 days | 48% |
| Sebastian Kramer | 4/10 | 5828 days | 31% |
| Maarten | 9/10 | 5831 days | 48% |
| varenaee | 9/10 | 5869 days | 48% |
| Trisha T | 9/10 | 5884 days | 48% |
| Bue Verrept | 8/10 | 5891 days | 48% |
| Wim Put | 9/10 | 5910 days | 48% |
| Poonam Patel | 10/10 | 6025 days | 49% |
| KYinNZ | 9/10 | 6037 days | 48% |
| monniere | 8/10 | 6038 days | 48% |
| YohanM | 7/10 | 6123 days | 45% |
| David | 9/10 | 6128 days | 48% |
| Andrew | 8/10 | 6128 days | 48% |
| Yvanna | 7/10 | 6147 days | 45% |
| Maria | 8/10 | 6152 days | 48% |
| SarahK | 10/10 | 6161 days | 49% |
| RachelR | 9/10 | 6161 days | 48% |
| SofiaBrazil | 10/10 | 6161 days | 49% |
| MartinG | 8/10 | 6161 days | 48% |
| TatiamT | 10/10 | 6161 days | 49% |
| PellucoFrance | 8/10 | 6162 days | 48% |
| Ole | 8/10 | 6169 days | 48% |
| Tessa | 10/10 | 6179 days | 49% |
| DaraghD | 8/10 | 6185 days | 48% |
| Annika | 4/10 | 6193 days | 31% |
| Kirk | 6/10 | 6196 days | 42% |
| Evangelista | 6/10 | 6201 days | 42% |
| Corinna | 7/10 | 6203 days | 45% |
| Maud | 7/10 | 6233 days | 45% |
| Spyfox | 10/10 | 6235 days | 49% |
| Inga | 7/10 | 6254 days | 45% |
| Sabrina | 9/10 | 6260 days | 48% |
| Nadia | 7/10 | 6262 days | 45% |
| Gayle | 8/10 | 6285 days | 48% |
| Rebekka | 9/10 | 6292 days | 48% |
| Antonella | 10/10 | 6303 days | 49% |
| teamaustria | 9/10 | 6318 days | 48% |
| Katja | 7/10 | 6335 days | 45% |
| Fiona | 10/10 | 6348 days | 49% |
| Louise | 8/10 | 6348 days | 48% |
| fgregory | 10/10 | 6391 days | 49% |
| Bonny Doon | 6/10 | 6391 days | 42% |
| Toni Keown | 3/10 | 6483 days | 26% |
| Naoko | 5/10 | 6494 days | 37% |
| Olaf Penn | 7/10 | 6519 days | 45% |
| Mie Toft Pedersen | 10/10 | 6524 days | 49% |
| Tobias Rahm | 6/10 | 6533 days | 42% |
| Haemnerli | 8/10 | 6533 days | 48% |
| Maruja | 9/10 | 6571 days | 48% |
| Maria | 5/10 | 6571 days | 37% |
| Amanda Finger | 9/10 | 6576 days | 48% |
| Desiree Muri | 10/10 | 6576 days | 49% |
| Andrew Porter | 8/10 | 6576 days | 48% |
| Kay | 9/10 | 6599 days | 48% |
| Martin Nigschit | 6/10 | 6602 days | 42% |
| lawrence Walker | 8/10 | 6602 days | 48% |
| Fiona | 9/10 | 6609 days | 48% |
| Neil Cooke | 7/10 | 6610 days | 45% |
| Willemien | 8/10 | 6620 days | 48% |
| Kimberley Mayer | 9/10 | 6620 days | 48% |
| Kim | 10/10 | 6815 days | 49% |
| Stacey | 7/10 | 6838 days | 45% |
| Michael | 8/10 | 6851 days | 48% |
| Jules | 6/10 | 6856 days | 42% |
| Fran | 7/10 | 6858 days | 45% |
| Dave | 6/10 | 6858 days | 42% |
| Bas Marieke | 8/10 | 6869 days | 48% |
| Detlef | 4/10 | 6872 days | 31% |
| Jenny | 7/10 | 6874 days | 45% |
| Duncan | 7/10 | 6887 days | 45% |
| Nissa | 6/10 | 6893 days | 42% |
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 44 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
4.32% 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.