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
133 Valid Reviews
The Polynesian Spa experience has a total of 136 reviews. There are 133 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 133 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 | 1 |
|
1% |
78.35% Average
The raw data average (mean) for all the Polynesian Spa valid reviews is 78.35% and is based on 133 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 133 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
63.31%
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 |
|---|---|---|---|
| Michael | 1/10 | 152 days | 100% |
| Joonas Lehtomaki | 4/10 | 3574 days | 1% |
| Margot | 7/10 | 3577 days | 2% |
| Philip Sheridan | 7/10 | 3586 days | 2% |
| John Edwards | 9/10 | 3603 days | 2% |
| Cathy La Frenais | 8/10 | 3844 days | 1% |
| Marie Bocquier | 8/10 | 3853 days | 1% |
| Felix | 8/10 | 3888 days | 1% |
| Fabian | 7/10 | 3889 days | 1% |
| Juro | 7/10 | 3889 days | 1% |
| Sandra | 7/10 | 3899 days | 1% |
| Franziska and Sabine | 8/10 | 3907 days | 1% |
| Martina | 8/10 | 3915 days | 1% |
| Jessie Sabine | 7/10 | 4615 days | 1% |
| Matthew Trezise | 7/10 | 4615 days | 1% |
| Frederic Gazzarin | 10/10 | 4620 days | 1% |
| Patricia Gazzarin | 9/10 | 4620 days | 1% |
| Melissa Hermansson | 8/10 | 4623 days | 1% |
| Thi Baut | 9/10 | 4660 days | 1% |
| Alice Berg | 8/10 | 4954 days | 1% |
| nl | 9/10 | 5063 days | 1% |
| Peter Kent | 9/10 | 5313 days | 1% |
| Antoine Lacoste | 6/10 | 5319 days | 1% |
| Hanna Clement | 6/10 | 5320 days | 1% |
| Numa Brouimet | 8/10 | 5322 days | 1% |
| Darina Kvasnicova | 8/10 | 5328 days | 1% |
| Richard Harvey | 9/10 | 5335 days | 1% |
| Mark Bogton | 9/10 | 5335 days | 1% |
| Hannah Bean | 7/10 | 5337 days | 1% |
| Elise Violet | 7/10 | 5339 days | 1% |
| Dominique | 8/10 | 5339 days | 1% |
| Lepied | 8/10 | 5342 days | 1% |
| Kimberley Mills | 10/10 | 5342 days | 1% |
| John Reynolds | 8/10 | 5350 days | 1% |
| Kurt Furuskar | 9/10 | 5366 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5386 days | 1% |
| Jan & Marian | 10/10 | 5429 days | 1% |
| Natascha Rachel | 3/10 | 5637 days | 0% |
| P Bukal | 10/10 | 5671 days | 1% |
| Kendall | 8/10 | 5675 days | 1% |
| Michael Simmang | 10/10 | 5680 days | 1% |
| Dave Patterson | 8/10 | 5683 days | 1% |
| Jerven and Kim | 3/10 | 5685 days | 0% |
| Katy Bourne | 7/10 | 5686 days | 1% |
| Claudio | 3/10 | 5698 days | 0% |
| Walter Peters | 9/10 | 5704 days | 1% |
| Claire Hoyland | 9/10 | 5707 days | 1% |
| Eva Stauderova | 9/10 | 5711 days | 1% |
| Amanda Craig | 7/10 | 5714 days | 1% |
| D Oostrum | 8/10 | 5715 days | 1% |
| C Gobl | 8/10 | 5719 days | 1% |
| Rosey834 | 9/10 | 5782 days | 1% |
| JimBradshaw | 9/10 | 5935 days | 1% |
| KieranE | 7/10 | 5996 days | 1% |
| Victoria Slater | 10/10 | 6031 days | 1% |
| Andy & Louise Dutton | 10/10 | 6044 days | 1% |
| Leonard Vans | 7/10 | 6057 days | 1% |
| Cecile | 9/10 | 6060 days | 1% |
| Maria Lorentzen | 9/10 | 6064 days | 1% |
| Sue Bennett | 9/10 | 6067 days | 1% |
| Robert Trostle | 10/10 | 6070 days | 1% |
| Mark | 8/10 | 6076 days | 1% |
| Bram-Jan M | 8/10 | 6084 days | 1% |
| Sebastian Kramer | 4/10 | 6091 days | 0% |
| Maarten | 9/10 | 6094 days | 1% |
| varenaee | 9/10 | 6132 days | 1% |
| Trisha T | 9/10 | 6147 days | 1% |
| Bue Verrept | 8/10 | 6154 days | 1% |
| Wim Put | 9/10 | 6173 days | 1% |
| Poonam Patel | 10/10 | 6288 days | 1% |
| KYinNZ | 9/10 | 6300 days | 1% |
| monniere | 8/10 | 6301 days | 1% |
| YohanM | 7/10 | 6386 days | 1% |
| David | 9/10 | 6391 days | 1% |
| Andrew | 8/10 | 6391 days | 1% |
| Yvanna | 7/10 | 6410 days | 1% |
| Maria | 8/10 | 6414 days | 1% |
| SarahK | 10/10 | 6424 days | 1% |
| RachelR | 9/10 | 6424 days | 1% |
| SofiaBrazil | 10/10 | 6424 days | 1% |
| MartinG | 8/10 | 6424 days | 1% |
| TatiamT | 10/10 | 6424 days | 1% |
| PellucoFrance | 8/10 | 6425 days | 1% |
| Ole | 8/10 | 6431 days | 1% |
| Tessa | 10/10 | 6441 days | 1% |
| DaraghD | 8/10 | 6448 days | 1% |
| Annika | 4/10 | 6455 days | 0% |
| Kirk | 6/10 | 6459 days | 1% |
| Evangelista | 6/10 | 6463 days | 1% |
| Corinna | 7/10 | 6465 days | 1% |
| Maud | 7/10 | 6495 days | 1% |
| Spyfox | 10/10 | 6497 days | 1% |
| Inga | 7/10 | 6516 days | 1% |
| Sabrina | 9/10 | 6522 days | 1% |
| Nadia | 7/10 | 6524 days | 1% |
| Gayle | 8/10 | 6547 days | 1% |
| Rebekka | 9/10 | 6554 days | 1% |
| Antonella | 10/10 | 6565 days | 1% |
| teamaustria | 9/10 | 6580 days | 1% |
| Katja | 7/10 | 6597 days | 1% |
| Fiona | 10/10 | 6610 days | 1% |
| Louise | 8/10 | 6610 days | 1% |
| fgregory | 10/10 | 6653 days | 1% |
| Bonny Doon | 6/10 | 6654 days | 1% |
| Toni Keown | 3/10 | 6746 days | 0% |
| Naoko | 5/10 | 6757 days | 1% |
| Olaf Penn | 7/10 | 6782 days | 1% |
| Mie Toft Pedersen | 10/10 | 6787 days | 1% |
| Tobias Rahm | 6/10 | 6796 days | 1% |
| Haemnerli | 8/10 | 6796 days | 1% |
| Maruja | 9/10 | 6834 days | 1% |
| Maria | 5/10 | 6834 days | 1% |
| Amanda Finger | 9/10 | 6839 days | 1% |
| Desiree Muri | 10/10 | 6839 days | 1% |
| Andrew Porter | 8/10 | 6839 days | 1% |
| Kay | 9/10 | 6862 days | 1% |
| Martin Nigschit | 6/10 | 6865 days | 1% |
| lawrence Walker | 8/10 | 6865 days | 1% |
| Fiona | 9/10 | 6872 days | 1% |
| Neil Cooke | 7/10 | 6873 days | 1% |
| Willemien | 8/10 | 6883 days | 1% |
| Kimberley Mayer | 9/10 | 6883 days | 1% |
| Kim | 10/10 | 7078 days | 1% |
| Stacey | 7/10 | 7101 days | 1% |
| Michael | 8/10 | 7114 days | 1% |
| Jules | 6/10 | 7119 days | 1% |
| Fran | 7/10 | 7121 days | 1% |
| Dave | 6/10 | 7121 days | 1% |
| Bas Marieke | 8/10 | 7132 days | 1% |
| Detlef | 4/10 | 7135 days | 0% |
| Jenny | 7/10 | 7137 days | 1% |
| Duncan | 7/10 | 7150 days | 1% |
| Nissa | 6/10 | 7156 days | 1% |
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
-2.13% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 68 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 131 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 128 | -2.08% |
| 129 | -2.10% |
| 130 | -2.11% |
| 131 | -2.13% |
| 132 | -2.15% |
| 133 | -2.16% |
| 134 | -2.18% |
| … | … |
Balancing Adjustment
13.08% 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
74%
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.