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 | 3285 days | 68% |
| Margot | 7/10 | 3288 days | 96% |
| Philip Sheridan | 7/10 | 3297 days | 95% |
| John Edwards | 9/10 | 3314 days | 100% |
| Cathy La Frenais | 8/10 | 3555 days | 76% |
| Marie Bocquier | 8/10 | 3564 days | 76% |
| Felix | 8/10 | 3599 days | 72% |
| Fabian | 7/10 | 3600 days | 69% |
| Juro | 7/10 | 3600 days | 69% |
| Sandra | 7/10 | 3610 days | 68% |
| Franziska and Sabine | 8/10 | 3618 days | 71% |
| Martina | 8/10 | 3626 days | 70% |
| Jessie Sabine | 7/10 | 4326 days | 4% |
| Matthew Trezise | 7/10 | 4326 days | 4% |
| Frederic Gazzarin | 10/10 | 4331 days | 4% |
| Patricia Gazzarin | 9/10 | 4331 days | 4% |
| Melissa Hermansson | 8/10 | 4334 days | 3% |
| Thi Baut | 9/10 | 4371 days | 0% |
| Alice Berg | 8/10 | 4665 days | 47% |
| nl | 9/10 | 4774 days | 47% |
| Peter Kent | 9/10 | 5024 days | 47% |
| Antoine Lacoste | 6/10 | 5030 days | 41% |
| Hanna Clement | 6/10 | 5031 days | 41% |
| Numa Brouimet | 8/10 | 5033 days | 47% |
| Darina Kvasnicova | 8/10 | 5039 days | 47% |
| Richard Harvey | 9/10 | 5046 days | 47% |
| Mark Bogton | 9/10 | 5046 days | 47% |
| Hannah Bean | 7/10 | 5048 days | 45% |
| Elise Violet | 7/10 | 5050 days | 45% |
| Dominique | 8/10 | 5050 days | 47% |
| Lepied | 8/10 | 5053 days | 47% |
| Kimberley Mills | 10/10 | 5053 days | 48% |
| John Reynolds | 8/10 | 5061 days | 47% |
| Kurt Furuskar | 9/10 | 5077 days | 47% |
| Barsch, Arwed & Gertrud | 10/10 | 5097 days | 48% |
| Jan & Marian | 10/10 | 5140 days | 48% |
| Natascha Rachel | 3/10 | 5348 days | 26% |
| P Bukal | 10/10 | 5382 days | 48% |
| Kendall | 8/10 | 5386 days | 47% |
| Michael Simmang | 10/10 | 5391 days | 48% |
| Dave Patterson | 8/10 | 5394 days | 47% |
| Jerven and Kim | 3/10 | 5396 days | 26% |
| Katy Bourne | 7/10 | 5397 days | 45% |
| Claudio | 3/10 | 5409 days | 26% |
| Walter Peters | 9/10 | 5415 days | 47% |
| Claire Hoyland | 9/10 | 5418 days | 47% |
| Eva Stauderova | 9/10 | 5422 days | 47% |
| Amanda Craig | 7/10 | 5425 days | 45% |
| D Oostrum | 8/10 | 5426 days | 47% |
| C Gobl | 8/10 | 5430 days | 47% |
| Rosey834 | 9/10 | 5493 days | 47% |
| JimBradshaw | 9/10 | 5646 days | 47% |
| KieranE | 7/10 | 5707 days | 45% |
| Victoria Slater | 10/10 | 5742 days | 48% |
| Andy & Louise Dutton | 10/10 | 5755 days | 48% |
| Leonard Vans | 7/10 | 5768 days | 45% |
| Cecile | 9/10 | 5771 days | 47% |
| Maria Lorentzen | 9/10 | 5775 days | 47% |
| Sue Bennett | 9/10 | 5778 days | 47% |
| Robert Trostle | 10/10 | 5781 days | 48% |
| Mark | 8/10 | 5787 days | 47% |
| Bram-Jan M | 8/10 | 5795 days | 47% |
| Sebastian Kramer | 4/10 | 5802 days | 31% |
| Maarten | 9/10 | 5805 days | 47% |
| varenaee | 9/10 | 5843 days | 47% |
| Trisha T | 9/10 | 5858 days | 47% |
| Bue Verrept | 8/10 | 5865 days | 47% |
| Wim Put | 9/10 | 5884 days | 47% |
| Poonam Patel | 10/10 | 5999 days | 48% |
| KYinNZ | 9/10 | 6011 days | 47% |
| monniere | 8/10 | 6012 days | 47% |
| YohanM | 7/10 | 6097 days | 45% |
| David | 9/10 | 6102 days | 47% |
| Andrew | 8/10 | 6102 days | 47% |
| Yvanna | 7/10 | 6121 days | 45% |
| Maria | 8/10 | 6125 days | 47% |
| SarahK | 10/10 | 6135 days | 48% |
| RachelR | 9/10 | 6135 days | 47% |
| SofiaBrazil | 10/10 | 6135 days | 48% |
| MartinG | 8/10 | 6135 days | 47% |
| TatiamT | 10/10 | 6135 days | 48% |
| PellucoFrance | 8/10 | 6136 days | 47% |
| Ole | 8/10 | 6142 days | 47% |
| Tessa | 10/10 | 6152 days | 48% |
| DaraghD | 8/10 | 6159 days | 47% |
| Annika | 4/10 | 6166 days | 31% |
| Kirk | 6/10 | 6170 days | 41% |
| Evangelista | 6/10 | 6174 days | 41% |
| Corinna | 7/10 | 6176 days | 45% |
| Maud | 7/10 | 6206 days | 45% |
| Spyfox | 10/10 | 6208 days | 48% |
| Inga | 7/10 | 6227 days | 45% |
| Sabrina | 9/10 | 6233 days | 47% |
| Nadia | 7/10 | 6235 days | 45% |
| Gayle | 8/10 | 6258 days | 47% |
| Rebekka | 9/10 | 6265 days | 47% |
| Antonella | 10/10 | 6276 days | 48% |
| teamaustria | 9/10 | 6291 days | 47% |
| Katja | 7/10 | 6308 days | 45% |
| Fiona | 10/10 | 6321 days | 48% |
| Louise | 8/10 | 6321 days | 47% |
| fgregory | 10/10 | 6364 days | 48% |
| Bonny Doon | 6/10 | 6365 days | 41% |
| Toni Keown | 3/10 | 6457 days | 26% |
| Naoko | 5/10 | 6468 days | 36% |
| Olaf Penn | 7/10 | 6493 days | 45% |
| Mie Toft Pedersen | 10/10 | 6498 days | 48% |
| Tobias Rahm | 6/10 | 6507 days | 41% |
| Haemnerli | 8/10 | 6507 days | 47% |
| Maruja | 9/10 | 6545 days | 47% |
| Maria | 5/10 | 6545 days | 36% |
| Amanda Finger | 9/10 | 6550 days | 47% |
| Desiree Muri | 10/10 | 6550 days | 48% |
| Andrew Porter | 8/10 | 6550 days | 47% |
| Kay | 9/10 | 6573 days | 47% |
| Martin Nigschit | 6/10 | 6576 days | 41% |
| lawrence Walker | 8/10 | 6576 days | 47% |
| Fiona | 9/10 | 6583 days | 47% |
| Neil Cooke | 7/10 | 6584 days | 45% |
| Willemien | 8/10 | 6594 days | 47% |
| Kimberley Mayer | 9/10 | 6594 days | 47% |
| Kim | 10/10 | 6789 days | 48% |
| Stacey | 7/10 | 6812 days | 45% |
| Michael | 8/10 | 6825 days | 47% |
| Jules | 6/10 | 6830 days | 41% |
| Fran | 7/10 | 6832 days | 45% |
| Dave | 6/10 | 6832 days | 41% |
| Bas Marieke | 8/10 | 6843 days | 47% |
| Detlef | 4/10 | 6846 days | 31% |
| Jenny | 7/10 | 6848 days | 45% |
| Duncan | 7/10 | 6861 days | 45% |
| Nissa | 6/10 | 6867 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
-4.06% 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 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 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.