Hi, 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
63.35%
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 | 192 days | 100% |
| Joonas Lehtomaki | 4/10 | 3614 days | 1% |
| Margot | 7/10 | 3617 days | 2% |
| Philip Sheridan | 7/10 | 3626 days | 2% |
| John Edwards | 9/10 | 3643 days | 2% |
| Cathy La Frenais | 8/10 | 3884 days | 1% |
| Marie Bocquier | 8/10 | 3893 days | 1% |
| Felix | 8/10 | 3928 days | 1% |
| Fabian | 7/10 | 3929 days | 1% |
| Juro | 7/10 | 3929 days | 1% |
| Sandra | 7/10 | 3939 days | 1% |
| Franziska and Sabine | 8/10 | 3947 days | 1% |
| Martina | 8/10 | 3955 days | 1% |
| Jessie Sabine | 7/10 | 4655 days | 1% |
| Matthew Trezise | 7/10 | 4655 days | 1% |
| Frederic Gazzarin | 10/10 | 4660 days | 1% |
| Patricia Gazzarin | 9/10 | 4660 days | 1% |
| Melissa Hermansson | 8/10 | 4663 days | 1% |
| Thi Baut | 9/10 | 4700 days | 1% |
| Alice Berg | 8/10 | 4994 days | 1% |
| nl | 9/10 | 5103 days | 1% |
| Peter Kent | 9/10 | 5353 days | 1% |
| Antoine Lacoste | 6/10 | 5359 days | 1% |
| Hanna Clement | 6/10 | 5360 days | 1% |
| Numa Brouimet | 8/10 | 5362 days | 1% |
| Darina Kvasnicova | 8/10 | 5368 days | 1% |
| Richard Harvey | 9/10 | 5375 days | 1% |
| Mark Bogton | 9/10 | 5375 days | 1% |
| Hannah Bean | 7/10 | 5377 days | 1% |
| Elise Violet | 7/10 | 5379 days | 1% |
| Dominique | 8/10 | 5379 days | 1% |
| Lepied | 8/10 | 5382 days | 1% |
| Kimberley Mills | 10/10 | 5382 days | 1% |
| John Reynolds | 8/10 | 5390 days | 1% |
| Kurt Furuskar | 9/10 | 5406 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5426 days | 1% |
| Jan & Marian | 10/10 | 5469 days | 1% |
| Natascha Rachel | 3/10 | 5677 days | 0% |
| P Bukal | 10/10 | 5711 days | 1% |
| Kendall | 8/10 | 5715 days | 1% |
| Michael Simmang | 10/10 | 5720 days | 1% |
| Dave Patterson | 8/10 | 5723 days | 1% |
| Jerven and Kim | 3/10 | 5725 days | 0% |
| Katy Bourne | 7/10 | 5726 days | 1% |
| Claudio | 3/10 | 5738 days | 0% |
| Walter Peters | 9/10 | 5744 days | 1% |
| Claire Hoyland | 9/10 | 5747 days | 1% |
| Eva Stauderova | 9/10 | 5751 days | 1% |
| Amanda Craig | 7/10 | 5754 days | 1% |
| D Oostrum | 8/10 | 5755 days | 1% |
| C Gobl | 8/10 | 5759 days | 1% |
| Rosey834 | 9/10 | 5822 days | 1% |
| JimBradshaw | 9/10 | 5975 days | 1% |
| KieranE | 7/10 | 6036 days | 1% |
| Victoria Slater | 10/10 | 6071 days | 1% |
| Andy & Louise Dutton | 10/10 | 6084 days | 1% |
| Leonard Vans | 7/10 | 6097 days | 1% |
| Cecile | 9/10 | 6100 days | 1% |
| Maria Lorentzen | 9/10 | 6104 days | 1% |
| Sue Bennett | 9/10 | 6107 days | 1% |
| Robert Trostle | 10/10 | 6110 days | 1% |
| Mark | 8/10 | 6116 days | 1% |
| Bram-Jan M | 8/10 | 6124 days | 1% |
| Sebastian Kramer | 4/10 | 6131 days | 0% |
| Maarten | 9/10 | 6134 days | 1% |
| varenaee | 9/10 | 6172 days | 1% |
| Trisha T | 9/10 | 6187 days | 1% |
| Bue Verrept | 8/10 | 6194 days | 1% |
| Wim Put | 9/10 | 6213 days | 1% |
| Poonam Patel | 10/10 | 6328 days | 1% |
| KYinNZ | 9/10 | 6340 days | 1% |
| monniere | 8/10 | 6341 days | 1% |
| YohanM | 7/10 | 6426 days | 1% |
| David | 9/10 | 6431 days | 1% |
| Andrew | 8/10 | 6431 days | 1% |
| Yvanna | 7/10 | 6450 days | 1% |
| Maria | 8/10 | 6454 days | 1% |
| SarahK | 10/10 | 6464 days | 1% |
| RachelR | 9/10 | 6464 days | 1% |
| SofiaBrazil | 10/10 | 6464 days | 1% |
| MartinG | 8/10 | 6464 days | 1% |
| TatiamT | 10/10 | 6464 days | 1% |
| PellucoFrance | 8/10 | 6465 days | 1% |
| Ole | 8/10 | 6471 days | 1% |
| Tessa | 10/10 | 6481 days | 1% |
| DaraghD | 8/10 | 6488 days | 1% |
| Annika | 4/10 | 6495 days | 0% |
| Kirk | 6/10 | 6499 days | 1% |
| Evangelista | 6/10 | 6503 days | 1% |
| Corinna | 7/10 | 6505 days | 1% |
| Maud | 7/10 | 6535 days | 1% |
| Spyfox | 10/10 | 6537 days | 1% |
| Inga | 7/10 | 6556 days | 1% |
| Sabrina | 9/10 | 6562 days | 1% |
| Nadia | 7/10 | 6564 days | 1% |
| Gayle | 8/10 | 6588 days | 1% |
| Rebekka | 9/10 | 6595 days | 1% |
| Antonella | 10/10 | 6605 days | 1% |
| teamaustria | 9/10 | 6620 days | 1% |
| Katja | 7/10 | 6637 days | 1% |
| Fiona | 10/10 | 6650 days | 1% |
| Louise | 8/10 | 6650 days | 1% |
| fgregory | 10/10 | 6693 days | 1% |
| Bonny Doon | 6/10 | 6694 days | 1% |
| Toni Keown | 3/10 | 6786 days | 0% |
| Naoko | 5/10 | 6797 days | 1% |
| Olaf Penn | 7/10 | 6822 days | 1% |
| Mie Toft Pedersen | 10/10 | 6827 days | 1% |
| Tobias Rahm | 6/10 | 6836 days | 1% |
| Haemnerli | 8/10 | 6836 days | 1% |
| Maruja | 9/10 | 6874 days | 1% |
| Maria | 5/10 | 6874 days | 1% |
| Amanda Finger | 9/10 | 6879 days | 1% |
| Desiree Muri | 10/10 | 6879 days | 1% |
| Andrew Porter | 8/10 | 6879 days | 1% |
| Kay | 9/10 | 6902 days | 1% |
| Martin Nigschit | 6/10 | 6905 days | 1% |
| lawrence Walker | 8/10 | 6905 days | 1% |
| Fiona | 9/10 | 6912 days | 1% |
| Neil Cooke | 7/10 | 6913 days | 1% |
| Willemien | 8/10 | 6923 days | 1% |
| Kimberley Mayer | 9/10 | 6923 days | 1% |
| Kim | 10/10 | 7118 days | 1% |
| Stacey | 7/10 | 7141 days | 1% |
| Michael | 8/10 | 7154 days | 1% |
| Jules | 6/10 | 7159 days | 1% |
| Fran | 7/10 | 7161 days | 1% |
| Dave | 6/10 | 7161 days | 1% |
| Bas Marieke | 8/10 | 7172 days | 1% |
| Detlef | 4/10 | 7175 days | 0% |
| Jenny | 7/10 | 7177 days | 1% |
| Duncan | 7/10 | 7190 days | 1% |
| Nissa | 6/10 | 7196 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
-3.38% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 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 171 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 168 | -3.32% |
| 169 | -3.34% |
| 170 | -3.36% |
| 171 | -3.38% |
| 172 | -3.40% |
| 173 | -3.42% |
| 174 | -3.44% |
| … | … |
Balancing Adjustment
14.02% 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
74%
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.