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 | 3286 days | 68% |
| Margot | 7/10 | 3289 days | 96% |
| Philip Sheridan | 7/10 | 3298 days | 95% |
| John Edwards | 9/10 | 3315 days | 100% |
| Cathy La Frenais | 8/10 | 3556 days | 76% |
| Marie Bocquier | 8/10 | 3565 days | 76% |
| Felix | 8/10 | 3600 days | 72% |
| Fabian | 7/10 | 3601 days | 69% |
| Juro | 7/10 | 3601 days | 69% |
| Sandra | 7/10 | 3611 days | 68% |
| Franziska and Sabine | 8/10 | 3619 days | 71% |
| Martina | 8/10 | 3627 days | 70% |
| Jessie Sabine | 7/10 | 4327 days | 4% |
| Matthew Trezise | 7/10 | 4327 days | 4% |
| Frederic Gazzarin | 10/10 | 4332 days | 4% |
| Patricia Gazzarin | 9/10 | 4332 days | 4% |
| Melissa Hermansson | 8/10 | 4335 days | 3% |
| Thi Baut | 9/10 | 4372 days | 0% |
| Alice Berg | 8/10 | 4666 days | 47% |
| nl | 9/10 | 4775 days | 48% |
| Peter Kent | 9/10 | 5025 days | 48% |
| Antoine Lacoste | 6/10 | 5031 days | 41% |
| Hanna Clement | 6/10 | 5032 days | 41% |
| Numa Brouimet | 8/10 | 5034 days | 47% |
| Darina Kvasnicova | 8/10 | 5040 days | 47% |
| Richard Harvey | 9/10 | 5047 days | 48% |
| Mark Bogton | 9/10 | 5047 days | 48% |
| Hannah Bean | 7/10 | 5049 days | 45% |
| Elise Violet | 7/10 | 5051 days | 45% |
| Dominique | 8/10 | 5051 days | 47% |
| Lepied | 8/10 | 5054 days | 47% |
| Kimberley Mills | 10/10 | 5054 days | 48% |
| John Reynolds | 8/10 | 5062 days | 47% |
| Kurt Furuskar | 9/10 | 5078 days | 48% |
| Barsch, Arwed & Gertrud | 10/10 | 5098 days | 48% |
| Jan & Marian | 10/10 | 5141 days | 48% |
| Natascha Rachel | 3/10 | 5349 days | 26% |
| P Bukal | 10/10 | 5383 days | 48% |
| Kendall | 8/10 | 5387 days | 47% |
| Michael Simmang | 10/10 | 5392 days | 48% |
| Dave Patterson | 8/10 | 5395 days | 47% |
| Jerven and Kim | 3/10 | 5397 days | 26% |
| Katy Bourne | 7/10 | 5398 days | 45% |
| Claudio | 3/10 | 5410 days | 26% |
| Walter Peters | 9/10 | 5416 days | 48% |
| Claire Hoyland | 9/10 | 5419 days | 48% |
| Eva Stauderova | 9/10 | 5423 days | 48% |
| Amanda Craig | 7/10 | 5426 days | 45% |
| D Oostrum | 8/10 | 5427 days | 47% |
| C Gobl | 8/10 | 5431 days | 47% |
| Rosey834 | 9/10 | 5494 days | 48% |
| JimBradshaw | 9/10 | 5647 days | 48% |
| KieranE | 7/10 | 5708 days | 45% |
| Victoria Slater | 10/10 | 5743 days | 48% |
| Andy & Louise Dutton | 10/10 | 5756 days | 48% |
| Leonard Vans | 7/10 | 5769 days | 45% |
| Cecile | 9/10 | 5772 days | 48% |
| Maria Lorentzen | 9/10 | 5776 days | 48% |
| Sue Bennett | 9/10 | 5779 days | 48% |
| Robert Trostle | 10/10 | 5782 days | 48% |
| Mark | 8/10 | 5788 days | 47% |
| Bram-Jan M | 8/10 | 5796 days | 47% |
| Sebastian Kramer | 4/10 | 5803 days | 31% |
| Maarten | 9/10 | 5806 days | 48% |
| varenaee | 9/10 | 5844 days | 48% |
| Trisha T | 9/10 | 5859 days | 48% |
| Bue Verrept | 8/10 | 5866 days | 47% |
| Wim Put | 9/10 | 5885 days | 48% |
| Poonam Patel | 10/10 | 6000 days | 48% |
| KYinNZ | 9/10 | 6012 days | 48% |
| monniere | 8/10 | 6013 days | 47% |
| YohanM | 7/10 | 6098 days | 45% |
| David | 9/10 | 6103 days | 48% |
| Andrew | 8/10 | 6103 days | 47% |
| Yvanna | 7/10 | 6122 days | 45% |
| Maria | 8/10 | 6126 days | 47% |
| SarahK | 10/10 | 6136 days | 48% |
| RachelR | 9/10 | 6136 days | 48% |
| SofiaBrazil | 10/10 | 6136 days | 48% |
| MartinG | 8/10 | 6136 days | 47% |
| TatiamT | 10/10 | 6136 days | 48% |
| PellucoFrance | 8/10 | 6137 days | 47% |
| Ole | 8/10 | 6143 days | 47% |
| Tessa | 10/10 | 6153 days | 48% |
| DaraghD | 8/10 | 6160 days | 47% |
| Annika | 4/10 | 6167 days | 31% |
| Kirk | 6/10 | 6171 days | 41% |
| Evangelista | 6/10 | 6175 days | 41% |
| Corinna | 7/10 | 6177 days | 45% |
| Maud | 7/10 | 6207 days | 45% |
| Spyfox | 10/10 | 6209 days | 48% |
| Inga | 7/10 | 6228 days | 45% |
| Sabrina | 9/10 | 6234 days | 48% |
| Nadia | 7/10 | 6236 days | 45% |
| Gayle | 8/10 | 6259 days | 47% |
| Rebekka | 9/10 | 6266 days | 48% |
| Antonella | 10/10 | 6277 days | 48% |
| teamaustria | 9/10 | 6292 days | 48% |
| Katja | 7/10 | 6309 days | 45% |
| Fiona | 10/10 | 6322 days | 48% |
| Louise | 8/10 | 6322 days | 47% |
| fgregory | 10/10 | 6365 days | 48% |
| Bonny Doon | 6/10 | 6366 days | 41% |
| Toni Keown | 3/10 | 6458 days | 26% |
| Naoko | 5/10 | 6469 days | 36% |
| Olaf Penn | 7/10 | 6494 days | 45% |
| Mie Toft Pedersen | 10/10 | 6499 days | 48% |
| Tobias Rahm | 6/10 | 6508 days | 41% |
| Haemnerli | 8/10 | 6508 days | 47% |
| Maruja | 9/10 | 6546 days | 48% |
| Maria | 5/10 | 6546 days | 36% |
| Amanda Finger | 9/10 | 6551 days | 48% |
| Desiree Muri | 10/10 | 6551 days | 48% |
| Andrew Porter | 8/10 | 6551 days | 47% |
| Kay | 9/10 | 6574 days | 48% |
| Martin Nigschit | 6/10 | 6577 days | 41% |
| lawrence Walker | 8/10 | 6577 days | 47% |
| Fiona | 9/10 | 6584 days | 48% |
| Neil Cooke | 7/10 | 6585 days | 45% |
| Willemien | 8/10 | 6595 days | 47% |
| Kimberley Mayer | 9/10 | 6595 days | 48% |
| Kim | 10/10 | 6790 days | 48% |
| Stacey | 7/10 | 6813 days | 45% |
| Michael | 8/10 | 6826 days | 47% |
| Jules | 6/10 | 6831 days | 41% |
| Fran | 7/10 | 6833 days | 45% |
| Dave | 6/10 | 6833 days | 41% |
| Bas Marieke | 8/10 | 6844 days | 47% |
| Detlef | 4/10 | 6847 days | 31% |
| Jenny | 7/10 | 6849 days | 45% |
| Duncan | 7/10 | 6862 days | 45% |
| Nissa | 6/10 | 6868 days | 41% |
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 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
4.35% 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.