Hey, 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 135 reviews. There are 133 valid reviews that are included when calculating the ranking score and 2 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
64.65%
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 |
|---|---|---|---|
| Ashley Pearce | 1/10 | 335 days | 100% |
| Joonas Lehtomaki | 4/10 | 2906 days | 5% |
| Margot | 7/10 | 2909 days | 7% |
| Philip Sheridan | 7/10 | 2918 days | 7% |
| John Edwards | 9/10 | 2935 days | 7% |
| Cathy La Frenais | 8/10 | 3176 days | 6% |
| Marie Bocquier | 8/10 | 3185 days | 6% |
| Felix | 8/10 | 3220 days | 5% |
| Fabian | 7/10 | 3221 days | 5% |
| Juro | 7/10 | 3221 days | 5% |
| Sandra | 7/10 | 3231 days | 5% |
| Franziska and Sabine | 8/10 | 3239 days | 5% |
| Martina | 8/10 | 3247 days | 5% |
| Jessie Sabine | 7/10 | 3947 days | 2% |
| Matthew Trezise | 7/10 | 3947 days | 2% |
| Frederic Gazzarin | 10/10 | 3952 days | 2% |
| Patricia Gazzarin | 9/10 | 3952 days | 2% |
| Melissa Hermansson | 8/10 | 3955 days | 2% |
| Thi Baut | 9/10 | 3992 days | 2% |
| Alice Berg | 8/10 | 4286 days | 0% |
| nl | 9/10 | 4395 days | 2% |
| Peter Kent | 9/10 | 4645 days | 2% |
| Antoine Lacoste | 6/10 | 4651 days | 2% |
| Hanna Clement | 6/10 | 4652 days | 2% |
| Numa Brouimet | 8/10 | 4654 days | 2% |
| Darina Kvasnicova | 8/10 | 4660 days | 2% |
| Richard Harvey | 9/10 | 4667 days | 2% |
| Mark Bogton | 9/10 | 4667 days | 2% |
| Hannah Bean | 7/10 | 4669 days | 2% |
| Elise Violet | 7/10 | 4671 days | 2% |
| Dominique | 8/10 | 4671 days | 2% |
| Lepied | 8/10 | 4674 days | 2% |
| Kimberley Mills | 10/10 | 4674 days | 2% |
| John Reynolds | 8/10 | 4682 days | 2% |
| Kurt Furuskar | 9/10 | 4698 days | 2% |
| Barsch, Arwed & Gertrud | 10/10 | 4718 days | 2% |
| Jan & Marian | 10/10 | 4761 days | 2% |
| Natascha Rachel | 3/10 | 4969 days | 1% |
| P Bukal | 10/10 | 5003 days | 2% |
| Kendall | 8/10 | 5007 days | 2% |
| Michael Simmang | 10/10 | 5012 days | 2% |
| Dave Patterson | 8/10 | 5015 days | 2% |
| Jerven and Kim | 3/10 | 5017 days | 1% |
| Katy Bourne | 7/10 | 5018 days | 2% |
| Claudio | 3/10 | 5030 days | 1% |
| Walter Peters | 9/10 | 5036 days | 2% |
| Claire Hoyland | 9/10 | 5039 days | 2% |
| Eva Stauderova | 9/10 | 5043 days | 2% |
| Amanda Craig | 7/10 | 5046 days | 2% |
| D Oostrum | 8/10 | 5047 days | 2% |
| C Gobl | 8/10 | 5051 days | 2% |
| Rosey834 | 9/10 | 5114 days | 2% |
| JimBradshaw | 9/10 | 5267 days | 2% |
| KieranE | 7/10 | 5328 days | 2% |
| Victoria Slater | 10/10 | 5363 days | 2% |
| Andy & Louise Dutton | 10/10 | 5376 days | 2% |
| Leonard Vans | 7/10 | 5389 days | 2% |
| Cecile | 9/10 | 5392 days | 2% |
| Maria Lorentzen | 9/10 | 5396 days | 2% |
| Sue Bennett | 9/10 | 5399 days | 2% |
| Robert Trostle | 10/10 | 5402 days | 2% |
| Mark | 8/10 | 5408 days | 2% |
| Bram-Jan M | 8/10 | 5416 days | 2% |
| Sebastian Kramer | 4/10 | 5423 days | 1% |
| Maarten | 9/10 | 5426 days | 2% |
| varenaee | 9/10 | 5464 days | 2% |
| Trisha T | 9/10 | 5479 days | 2% |
| Bue Verrept | 8/10 | 5486 days | 2% |
| Wim Put | 9/10 | 5505 days | 2% |
| Poonam Patel | 10/10 | 5620 days | 2% |
| KYinNZ | 9/10 | 5632 days | 2% |
| monniere | 8/10 | 5633 days | 2% |
| YohanM | 7/10 | 5718 days | 2% |
| David | 9/10 | 5723 days | 2% |
| Andrew | 8/10 | 5723 days | 2% |
| Yvanna | 7/10 | 5742 days | 2% |
| Maria | 8/10 | 5746 days | 2% |
| SarahK | 10/10 | 5756 days | 2% |
| RachelR | 9/10 | 5756 days | 2% |
| SofiaBrazil | 10/10 | 5756 days | 2% |
| MartinG | 8/10 | 5756 days | 2% |
| TatiamT | 10/10 | 5756 days | 2% |
| PellucoFrance | 8/10 | 5757 days | 2% |
| Ole | 8/10 | 5763 days | 2% |
| Tessa | 10/10 | 5773 days | 2% |
| DaraghD | 8/10 | 5780 days | 2% |
| Annika | 4/10 | 5787 days | 1% |
| Kirk | 6/10 | 5791 days | 2% |
| Evangelista | 6/10 | 5795 days | 2% |
| Corinna | 7/10 | 5797 days | 2% |
| Maud | 7/10 | 5827 days | 2% |
| Spyfox | 10/10 | 5829 days | 2% |
| Inga | 7/10 | 5849 days | 2% |
| Sabrina | 9/10 | 5854 days | 2% |
| Nadia | 7/10 | 5856 days | 2% |
| Gayle | 8/10 | 5880 days | 2% |
| Rebekka | 9/10 | 5887 days | 2% |
| Antonella | 10/10 | 5897 days | 2% |
| teamaustria | 9/10 | 5912 days | 2% |
| Katja | 7/10 | 5929 days | 2% |
| Fiona | 10/10 | 5942 days | 2% |
| Louise | 8/10 | 5942 days | 2% |
| fgregory | 10/10 | 5985 days | 2% |
| Bonny Doon | 6/10 | 5986 days | 2% |
| Toni Keown | 3/10 | 6078 days | 1% |
| Naoko | 5/10 | 6089 days | 2% |
| Olaf Penn | 7/10 | 6114 days | 2% |
| Mie Toft Pedersen | 10/10 | 6119 days | 2% |
| Tobias Rahm | 6/10 | 6128 days | 2% |
| Haemnerli | 8/10 | 6128 days | 2% |
| Maruja | 9/10 | 6166 days | 2% |
| Maria | 5/10 | 6166 days | 2% |
| Amanda Finger | 9/10 | 6171 days | 2% |
| Desiree Muri | 10/10 | 6171 days | 2% |
| Andrew Porter | 8/10 | 6171 days | 2% |
| Kay | 9/10 | 6194 days | 2% |
| Martin Nigschit | 6/10 | 6197 days | 2% |
| lawrence Walker | 8/10 | 6197 days | 2% |
| Fiona | 9/10 | 6204 days | 2% |
| Neil Cooke | 7/10 | 6205 days | 2% |
| Willemien | 8/10 | 6215 days | 2% |
| Kimberley Mayer | 9/10 | 6215 days | 2% |
| Kim | 10/10 | 6410 days | 2% |
| Stacey | 7/10 | 6433 days | 2% |
| Michael | 8/10 | 6446 days | 2% |
| Jules | 6/10 | 6451 days | 2% |
| Fran | 7/10 | 6453 days | 2% |
| Dave | 6/10 | 6453 days | 2% |
| Bas Marieke | 8/10 | 6464 days | 2% |
| Detlef | 4/10 | 6467 days | 1% |
| Jenny | 7/10 | 6469 days | 2% |
| Duncan | 7/10 | 6482 days | 2% |
| Nissa | 6/10 | 6488 days | 2% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 43 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
13.55% 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.