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
63.30%
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 | 50 days | 100% |
| Joonas Lehtomaki | 4/10 | 3472 days | 2% |
| Margot | 7/10 | 3475 days | 3% |
| Philip Sheridan | 7/10 | 3484 days | 3% |
| John Edwards | 9/10 | 3501 days | 3% |
| Cathy La Frenais | 8/10 | 3742 days | 2% |
| Marie Bocquier | 8/10 | 3751 days | 2% |
| Felix | 8/10 | 3786 days | 1% |
| Fabian | 7/10 | 3787 days | 1% |
| Juro | 7/10 | 3787 days | 1% |
| Sandra | 7/10 | 3797 days | 1% |
| Franziska and Sabine | 8/10 | 3805 days | 1% |
| Martina | 8/10 | 3813 days | 1% |
| Jessie Sabine | 7/10 | 4513 days | 1% |
| Matthew Trezise | 7/10 | 4513 days | 1% |
| Frederic Gazzarin | 10/10 | 4518 days | 1% |
| Patricia Gazzarin | 9/10 | 4518 days | 1% |
| Melissa Hermansson | 8/10 | 4521 days | 1% |
| Thi Baut | 9/10 | 4558 days | 1% |
| Alice Berg | 8/10 | 4852 days | 1% |
| nl | 9/10 | 4961 days | 1% |
| Peter Kent | 9/10 | 5211 days | 1% |
| Antoine Lacoste | 6/10 | 5217 days | 1% |
| Hanna Clement | 6/10 | 5218 days | 1% |
| Numa Brouimet | 8/10 | 5220 days | 1% |
| Darina Kvasnicova | 8/10 | 5226 days | 1% |
| Richard Harvey | 9/10 | 5233 days | 1% |
| Mark Bogton | 9/10 | 5233 days | 1% |
| Hannah Bean | 7/10 | 5235 days | 1% |
| Elise Violet | 7/10 | 5237 days | 1% |
| Dominique | 8/10 | 5237 days | 1% |
| Lepied | 8/10 | 5240 days | 1% |
| Kimberley Mills | 10/10 | 5240 days | 1% |
| John Reynolds | 8/10 | 5248 days | 1% |
| Kurt Furuskar | 9/10 | 5264 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5284 days | 1% |
| Jan & Marian | 10/10 | 5327 days | 1% |
| Natascha Rachel | 3/10 | 5535 days | 0% |
| P Bukal | 10/10 | 5569 days | 1% |
| Kendall | 8/10 | 5573 days | 1% |
| Michael Simmang | 10/10 | 5578 days | 1% |
| Dave Patterson | 8/10 | 5581 days | 1% |
| Jerven and Kim | 3/10 | 5583 days | 0% |
| Katy Bourne | 7/10 | 5584 days | 1% |
| Claudio | 3/10 | 5596 days | 0% |
| Walter Peters | 9/10 | 5602 days | 1% |
| Claire Hoyland | 9/10 | 5605 days | 1% |
| Eva Stauderova | 9/10 | 5609 days | 1% |
| Amanda Craig | 7/10 | 5612 days | 1% |
| D Oostrum | 8/10 | 5613 days | 1% |
| C Gobl | 8/10 | 5617 days | 1% |
| Rosey834 | 9/10 | 5680 days | 1% |
| JimBradshaw | 9/10 | 5833 days | 1% |
| KieranE | 7/10 | 5894 days | 1% |
| Victoria Slater | 10/10 | 5929 days | 1% |
| Andy & Louise Dutton | 10/10 | 5942 days | 1% |
| Leonard Vans | 7/10 | 5955 days | 1% |
| Cecile | 9/10 | 5958 days | 1% |
| Maria Lorentzen | 9/10 | 5962 days | 1% |
| Sue Bennett | 9/10 | 5965 days | 1% |
| Robert Trostle | 10/10 | 5968 days | 1% |
| Mark | 8/10 | 5974 days | 1% |
| Bram-Jan M | 8/10 | 5982 days | 1% |
| Sebastian Kramer | 4/10 | 5989 days | 0% |
| Maarten | 9/10 | 5992 days | 1% |
| varenaee | 9/10 | 6030 days | 1% |
| Trisha T | 9/10 | 6045 days | 1% |
| Bue Verrept | 8/10 | 6052 days | 1% |
| Wim Put | 9/10 | 6071 days | 1% |
| Poonam Patel | 10/10 | 6186 days | 1% |
| KYinNZ | 9/10 | 6198 days | 1% |
| monniere | 8/10 | 6199 days | 1% |
| YohanM | 7/10 | 6284 days | 1% |
| David | 9/10 | 6289 days | 1% |
| Andrew | 8/10 | 6289 days | 1% |
| Yvanna | 7/10 | 6309 days | 1% |
| Maria | 8/10 | 6313 days | 1% |
| SarahK | 10/10 | 6322 days | 1% |
| RachelR | 9/10 | 6322 days | 1% |
| SofiaBrazil | 10/10 | 6322 days | 1% |
| MartinG | 8/10 | 6322 days | 1% |
| TatiamT | 10/10 | 6322 days | 1% |
| PellucoFrance | 8/10 | 6323 days | 1% |
| Ole | 8/10 | 6330 days | 1% |
| Tessa | 10/10 | 6340 days | 1% |
| DaraghD | 8/10 | 6346 days | 1% |
| Annika | 4/10 | 6354 days | 0% |
| Kirk | 6/10 | 6358 days | 1% |
| Evangelista | 6/10 | 6362 days | 1% |
| Corinna | 7/10 | 6364 days | 1% |
| Maud | 7/10 | 6394 days | 1% |
| Spyfox | 10/10 | 6396 days | 1% |
| Inga | 7/10 | 6415 days | 1% |
| Sabrina | 9/10 | 6421 days | 1% |
| Nadia | 7/10 | 6423 days | 1% |
| Gayle | 8/10 | 6446 days | 1% |
| Rebekka | 9/10 | 6453 days | 1% |
| Antonella | 10/10 | 6464 days | 1% |
| teamaustria | 9/10 | 6479 days | 1% |
| Katja | 7/10 | 6496 days | 1% |
| Fiona | 10/10 | 6509 days | 1% |
| Louise | 8/10 | 6509 days | 1% |
| fgregory | 10/10 | 6552 days | 1% |
| Bonny Doon | 6/10 | 6552 days | 1% |
| Toni Keown | 3/10 | 6644 days | 0% |
| Naoko | 5/10 | 6655 days | 1% |
| Olaf Penn | 7/10 | 6680 days | 1% |
| Mie Toft Pedersen | 10/10 | 6685 days | 1% |
| Tobias Rahm | 6/10 | 6694 days | 1% |
| Haemnerli | 8/10 | 6694 days | 1% |
| Maruja | 9/10 | 6732 days | 1% |
| Maria | 5/10 | 6732 days | 1% |
| Amanda Finger | 9/10 | 6737 days | 1% |
| Desiree Muri | 10/10 | 6737 days | 1% |
| Andrew Porter | 8/10 | 6737 days | 1% |
| Kay | 9/10 | 6760 days | 1% |
| Martin Nigschit | 6/10 | 6763 days | 1% |
| lawrence Walker | 8/10 | 6763 days | 1% |
| Fiona | 9/10 | 6770 days | 1% |
| Neil Cooke | 7/10 | 6771 days | 1% |
| Willemien | 8/10 | 6781 days | 1% |
| Kimberley Mayer | 9/10 | 6781 days | 1% |
| Kim | 10/10 | 6976 days | 1% |
| Stacey | 7/10 | 6999 days | 1% |
| Michael | 8/10 | 7012 days | 1% |
| Jules | 6/10 | 7017 days | 1% |
| Fran | 7/10 | 7019 days | 1% |
| Dave | 6/10 | 7019 days | 1% |
| Bas Marieke | 8/10 | 7030 days | 1% |
| Detlef | 4/10 | 7033 days | 0% |
| Jenny | 7/10 | 7035 days | 1% |
| Duncan | 7/10 | 7048 days | 1% |
| Nissa | 6/10 | 7054 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
-0.32% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 118 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 30 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 27 | -0.29% |
| 28 | -0.30% |
| 29 | -0.31% |
| 30 | -0.32% |
| 31 | -0.33% |
| 32 | -0.34% |
| 33 | -0.35% |
| … | … |
Balancing Adjustment
11.69% 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.