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
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
63.28%
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 | 91 days | 100% |
| Joonas Lehtomaki | 4/10 | 3513 days | 1% |
| Margot | 7/10 | 3516 days | 3% |
| Philip Sheridan | 7/10 | 3525 days | 3% |
| John Edwards | 9/10 | 3542 days | 3% |
| Cathy La Frenais | 8/10 | 3783 days | 2% |
| Marie Bocquier | 8/10 | 3792 days | 1% |
| Felix | 8/10 | 3827 days | 1% |
| Fabian | 7/10 | 3828 days | 1% |
| Juro | 7/10 | 3828 days | 1% |
| Sandra | 7/10 | 3838 days | 1% |
| Franziska and Sabine | 8/10 | 3846 days | 1% |
| Martina | 8/10 | 3854 days | 1% |
| Jessie Sabine | 7/10 | 4554 days | 1% |
| Matthew Trezise | 7/10 | 4554 days | 1% |
| Frederic Gazzarin | 10/10 | 4559 days | 1% |
| Patricia Gazzarin | 9/10 | 4559 days | 1% |
| Melissa Hermansson | 8/10 | 4562 days | 1% |
| Thi Baut | 9/10 | 4599 days | 1% |
| Alice Berg | 8/10 | 4893 days | 1% |
| nl | 9/10 | 5002 days | 1% |
| Peter Kent | 9/10 | 5252 days | 1% |
| Antoine Lacoste | 6/10 | 5258 days | 1% |
| Hanna Clement | 6/10 | 5259 days | 1% |
| Numa Brouimet | 8/10 | 5261 days | 1% |
| Darina Kvasnicova | 8/10 | 5267 days | 1% |
| Richard Harvey | 9/10 | 5274 days | 1% |
| Mark Bogton | 9/10 | 5274 days | 1% |
| Hannah Bean | 7/10 | 5276 days | 1% |
| Elise Violet | 7/10 | 5278 days | 1% |
| Dominique | 8/10 | 5278 days | 1% |
| Lepied | 8/10 | 5281 days | 1% |
| Kimberley Mills | 10/10 | 5281 days | 1% |
| John Reynolds | 8/10 | 5289 days | 1% |
| Kurt Furuskar | 9/10 | 5305 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5325 days | 1% |
| Jan & Marian | 10/10 | 5368 days | 1% |
| Natascha Rachel | 3/10 | 5576 days | 0% |
| P Bukal | 10/10 | 5610 days | 1% |
| Kendall | 8/10 | 5614 days | 1% |
| Michael Simmang | 10/10 | 5619 days | 1% |
| Dave Patterson | 8/10 | 5622 days | 1% |
| Jerven and Kim | 3/10 | 5624 days | 0% |
| Katy Bourne | 7/10 | 5625 days | 1% |
| Claudio | 3/10 | 5637 days | 0% |
| Walter Peters | 9/10 | 5643 days | 1% |
| Claire Hoyland | 9/10 | 5646 days | 1% |
| Eva Stauderova | 9/10 | 5650 days | 1% |
| Amanda Craig | 7/10 | 5653 days | 1% |
| D Oostrum | 8/10 | 5654 days | 1% |
| C Gobl | 8/10 | 5658 days | 1% |
| Rosey834 | 9/10 | 5721 days | 1% |
| JimBradshaw | 9/10 | 5874 days | 1% |
| KieranE | 7/10 | 5935 days | 1% |
| Victoria Slater | 10/10 | 5970 days | 1% |
| Andy & Louise Dutton | 10/10 | 5983 days | 1% |
| Leonard Vans | 7/10 | 5996 days | 1% |
| Cecile | 9/10 | 5999 days | 1% |
| Maria Lorentzen | 9/10 | 6003 days | 1% |
| Sue Bennett | 9/10 | 6006 days | 1% |
| Robert Trostle | 10/10 | 6009 days | 1% |
| Mark | 8/10 | 6015 days | 1% |
| Bram-Jan M | 8/10 | 6023 days | 1% |
| Sebastian Kramer | 4/10 | 6030 days | 0% |
| Maarten | 9/10 | 6033 days | 1% |
| varenaee | 9/10 | 6071 days | 1% |
| Trisha T | 9/10 | 6086 days | 1% |
| Bue Verrept | 8/10 | 6093 days | 1% |
| Wim Put | 9/10 | 6112 days | 1% |
| Poonam Patel | 10/10 | 6227 days | 1% |
| KYinNZ | 9/10 | 6239 days | 1% |
| monniere | 8/10 | 6240 days | 1% |
| YohanM | 7/10 | 6325 days | 1% |
| David | 9/10 | 6330 days | 1% |
| Andrew | 8/10 | 6330 days | 1% |
| Yvanna | 7/10 | 6349 days | 1% |
| Maria | 8/10 | 6353 days | 1% |
| SarahK | 10/10 | 6363 days | 1% |
| RachelR | 9/10 | 6363 days | 1% |
| SofiaBrazil | 10/10 | 6363 days | 1% |
| MartinG | 8/10 | 6363 days | 1% |
| TatiamT | 10/10 | 6363 days | 1% |
| PellucoFrance | 8/10 | 6364 days | 1% |
| Ole | 8/10 | 6370 days | 1% |
| Tessa | 10/10 | 6381 days | 1% |
| DaraghD | 8/10 | 6387 days | 1% |
| Annika | 4/10 | 6395 days | 0% |
| Kirk | 6/10 | 6398 days | 1% |
| Evangelista | 6/10 | 6402 days | 1% |
| Corinna | 7/10 | 6404 days | 1% |
| Maud | 7/10 | 6434 days | 1% |
| Spyfox | 10/10 | 6437 days | 1% |
| Inga | 7/10 | 6456 days | 1% |
| Sabrina | 9/10 | 6461 days | 1% |
| Nadia | 7/10 | 6463 days | 1% |
| Gayle | 8/10 | 6487 days | 1% |
| Rebekka | 9/10 | 6494 days | 1% |
| Antonella | 10/10 | 6505 days | 1% |
| teamaustria | 9/10 | 6519 days | 1% |
| Katja | 7/10 | 6536 days | 1% |
| Fiona | 10/10 | 6549 days | 1% |
| Louise | 8/10 | 6549 days | 1% |
| fgregory | 10/10 | 6593 days | 1% |
| Bonny Doon | 6/10 | 6593 days | 1% |
| Toni Keown | 3/10 | 6685 days | 0% |
| Naoko | 5/10 | 6696 days | 1% |
| Olaf Penn | 7/10 | 6721 days | 1% |
| Mie Toft Pedersen | 10/10 | 6726 days | 1% |
| Tobias Rahm | 6/10 | 6735 days | 1% |
| Haemnerli | 8/10 | 6735 days | 1% |
| Maruja | 9/10 | 6773 days | 1% |
| Maria | 5/10 | 6773 days | 1% |
| Amanda Finger | 9/10 | 6778 days | 1% |
| Desiree Muri | 10/10 | 6778 days | 1% |
| Andrew Porter | 8/10 | 6778 days | 1% |
| Kay | 9/10 | 6801 days | 1% |
| Martin Nigschit | 6/10 | 6804 days | 1% |
| lawrence Walker | 8/10 | 6804 days | 1% |
| Fiona | 9/10 | 6811 days | 1% |
| Neil Cooke | 7/10 | 6812 days | 1% |
| Willemien | 8/10 | 6822 days | 1% |
| Kimberley Mayer | 9/10 | 6822 days | 1% |
| Kim | 10/10 | 7017 days | 1% |
| Stacey | 7/10 | 7040 days | 1% |
| Michael | 8/10 | 7053 days | 1% |
| Jules | 6/10 | 7058 days | 1% |
| Fran | 7/10 | 7060 days | 1% |
| Dave | 6/10 | 7060 days | 1% |
| Bas Marieke | 8/10 | 7071 days | 1% |
| Detlef | 4/10 | 7074 days | 0% |
| Jenny | 7/10 | 7076 days | 1% |
| Duncan | 7/10 | 7089 days | 1% |
| Nissa | 6/10 | 7095 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
-0.73% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 123 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 70 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 67 | -0.70% |
| 68 | -0.71% |
| 69 | -0.72% |
| 70 | -0.73% |
| 71 | -0.74% |
| 72 | -0.75% |
| 73 | -0.76% |
| … | … |
Balancing Adjustment
12.02% 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
75%
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.