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
80.07%
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 | 3371 days | 55% |
| Margot | 7/10 | 3374 days | 95% |
| Philip Sheridan | 7/10 | 3383 days | 94% |
| John Edwards | 9/10 | 3400 days | 100% |
| Cathy La Frenais | 8/10 | 3641 days | 64% |
| Marie Bocquier | 8/10 | 3650 days | 63% |
| Felix | 8/10 | 3685 days | 58% |
| Fabian | 7/10 | 3686 days | 53% |
| Juro | 7/10 | 3686 days | 53% |
| Sandra | 7/10 | 3696 days | 52% |
| Franziska and Sabine | 8/10 | 3704 days | 56% |
| Martina | 8/10 | 3712 days | 54% |
| Jessie Sabine | 7/10 | 4412 days | 29% |
| Matthew Trezise | 7/10 | 4412 days | 29% |
| Frederic Gazzarin | 10/10 | 4417 days | 34% |
| Patricia Gazzarin | 9/10 | 4417 days | 33% |
| Melissa Hermansson | 8/10 | 4420 days | 32% |
| Thi Baut | 9/10 | 4457 days | 33% |
| Alice Berg | 8/10 | 4751 days | 32% |
| nl | 9/10 | 4860 days | 33% |
| Peter Kent | 9/10 | 5110 days | 33% |
| Antoine Lacoste | 6/10 | 5116 days | 23% |
| Hanna Clement | 6/10 | 5117 days | 23% |
| Numa Brouimet | 8/10 | 5119 days | 32% |
| Darina Kvasnicova | 8/10 | 5125 days | 32% |
| Richard Harvey | 9/10 | 5132 days | 33% |
| Mark Bogton | 9/10 | 5132 days | 33% |
| Hannah Bean | 7/10 | 5134 days | 29% |
| Elise Violet | 7/10 | 5136 days | 29% |
| Dominique | 8/10 | 5136 days | 32% |
| Lepied | 8/10 | 5139 days | 32% |
| Kimberley Mills | 10/10 | 5139 days | 34% |
| John Reynolds | 8/10 | 5147 days | 32% |
| Kurt Furuskar | 9/10 | 5163 days | 33% |
| Barsch, Arwed & Gertrud | 10/10 | 5183 days | 34% |
| Jan & Marian | 10/10 | 5226 days | 34% |
| Natascha Rachel | 3/10 | 5434 days | 0% |
| P Bukal | 10/10 | 5468 days | 34% |
| Kendall | 8/10 | 5472 days | 32% |
| Michael Simmang | 10/10 | 5477 days | 34% |
| Dave Patterson | 8/10 | 5480 days | 32% |
| Jerven and Kim | 3/10 | 5482 days | 0% |
| Katy Bourne | 7/10 | 5483 days | 29% |
| Claudio | 3/10 | 5495 days | 0% |
| Walter Peters | 9/10 | 5501 days | 33% |
| Claire Hoyland | 9/10 | 5504 days | 33% |
| Eva Stauderova | 9/10 | 5508 days | 33% |
| Amanda Craig | 7/10 | 5511 days | 29% |
| D Oostrum | 8/10 | 5512 days | 32% |
| C Gobl | 8/10 | 5516 days | 32% |
| Rosey834 | 9/10 | 5579 days | 33% |
| JimBradshaw | 9/10 | 5732 days | 33% |
| KieranE | 7/10 | 5793 days | 29% |
| Victoria Slater | 10/10 | 5828 days | 34% |
| Andy & Louise Dutton | 10/10 | 5841 days | 34% |
| Leonard Vans | 7/10 | 5854 days | 29% |
| Cecile | 9/10 | 5857 days | 33% |
| Maria Lorentzen | 9/10 | 5861 days | 33% |
| Sue Bennett | 9/10 | 5864 days | 33% |
| Robert Trostle | 10/10 | 5867 days | 34% |
| Mark | 8/10 | 5873 days | 32% |
| Bram-Jan M | 8/10 | 5881 days | 32% |
| Sebastian Kramer | 4/10 | 5888 days | 8% |
| Maarten | 9/10 | 5891 days | 33% |
| varenaee | 9/10 | 5929 days | 33% |
| Trisha T | 9/10 | 5944 days | 33% |
| Bue Verrept | 8/10 | 5951 days | 32% |
| Wim Put | 9/10 | 5970 days | 33% |
| Poonam Patel | 10/10 | 6085 days | 34% |
| KYinNZ | 9/10 | 6097 days | 33% |
| monniere | 8/10 | 6098 days | 32% |
| YohanM | 7/10 | 6183 days | 29% |
| David | 9/10 | 6188 days | 33% |
| Andrew | 8/10 | 6188 days | 32% |
| Yvanna | 7/10 | 6207 days | 29% |
| Maria | 8/10 | 6211 days | 32% |
| SarahK | 10/10 | 6221 days | 34% |
| RachelR | 9/10 | 6221 days | 33% |
| SofiaBrazil | 10/10 | 6221 days | 34% |
| MartinG | 8/10 | 6221 days | 32% |
| TatiamT | 10/10 | 6221 days | 34% |
| PellucoFrance | 8/10 | 6222 days | 32% |
| Ole | 8/10 | 6228 days | 32% |
| Tessa | 10/10 | 6238 days | 34% |
| DaraghD | 8/10 | 6245 days | 32% |
| Annika | 4/10 | 6252 days | 8% |
| Kirk | 6/10 | 6256 days | 23% |
| Evangelista | 6/10 | 6260 days | 23% |
| Corinna | 7/10 | 6262 days | 29% |
| Maud | 7/10 | 6292 days | 29% |
| Spyfox | 10/10 | 6294 days | 34% |
| Inga | 7/10 | 6313 days | 29% |
| Sabrina | 9/10 | 6319 days | 33% |
| Nadia | 7/10 | 6321 days | 29% |
| Gayle | 8/10 | 6345 days | 32% |
| Rebekka | 9/10 | 6352 days | 33% |
| Antonella | 10/10 | 6362 days | 34% |
| teamaustria | 9/10 | 6377 days | 33% |
| Katja | 7/10 | 6394 days | 29% |
| Fiona | 10/10 | 6407 days | 34% |
| Louise | 8/10 | 6407 days | 32% |
| fgregory | 10/10 | 6450 days | 34% |
| Bonny Doon | 6/10 | 6451 days | 23% |
| Toni Keown | 3/10 | 6543 days | 0% |
| Naoko | 5/10 | 6554 days | 16% |
| Olaf Penn | 7/10 | 6579 days | 29% |
| Mie Toft Pedersen | 10/10 | 6584 days | 34% |
| Tobias Rahm | 6/10 | 6593 days | 23% |
| Haemnerli | 8/10 | 6593 days | 32% |
| Maruja | 9/10 | 6631 days | 33% |
| Maria | 5/10 | 6631 days | 16% |
| Amanda Finger | 9/10 | 6636 days | 33% |
| Desiree Muri | 10/10 | 6636 days | 34% |
| Andrew Porter | 8/10 | 6636 days | 32% |
| Kay | 9/10 | 6659 days | 33% |
| Martin Nigschit | 6/10 | 6662 days | 23% |
| lawrence Walker | 8/10 | 6662 days | 32% |
| Fiona | 9/10 | 6669 days | 33% |
| Neil Cooke | 7/10 | 6670 days | 29% |
| Willemien | 8/10 | 6680 days | 32% |
| Kimberley Mayer | 9/10 | 6680 days | 33% |
| Kim | 10/10 | 6875 days | 34% |
| Stacey | 7/10 | 6898 days | 29% |
| Michael | 8/10 | 6911 days | 32% |
| Jules | 6/10 | 6916 days | 23% |
| Fran | 7/10 | 6918 days | 29% |
| Dave | 6/10 | 6918 days | 23% |
| Bas Marieke | 8/10 | 6929 days | 32% |
| Detlef | 4/10 | 6932 days | 8% |
| Jenny | 7/10 | 6934 days | 29% |
| Duncan | 7/10 | 6947 days | 29% |
| Nissa | 6/10 | 6953 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
-4.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 | -3.97% |
| 198 | -3.99% |
| 199 | -4.01% |
| 200 | -4.03% |
| 201 | -4.05% |
| 202 | -4.07% |
| 203 | -4.09% |
| … | … |
Balancing Adjustment
4.26% 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.