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
63.32%
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 | 172 days | 100% |
| Joonas Lehtomaki | 4/10 | 3594 days | 1% |
| Margot | 7/10 | 3597 days | 2% |
| Philip Sheridan | 7/10 | 3606 days | 2% |
| John Edwards | 9/10 | 3623 days | 2% |
| Cathy La Frenais | 8/10 | 3864 days | 1% |
| Marie Bocquier | 8/10 | 3873 days | 1% |
| Felix | 8/10 | 3908 days | 1% |
| Fabian | 7/10 | 3909 days | 1% |
| Juro | 7/10 | 3909 days | 1% |
| Sandra | 7/10 | 3919 days | 1% |
| Franziska and Sabine | 8/10 | 3927 days | 1% |
| Martina | 8/10 | 3935 days | 1% |
| Jessie Sabine | 7/10 | 4635 days | 1% |
| Matthew Trezise | 7/10 | 4635 days | 1% |
| Frederic Gazzarin | 10/10 | 4640 days | 1% |
| Patricia Gazzarin | 9/10 | 4640 days | 1% |
| Melissa Hermansson | 8/10 | 4643 days | 1% |
| Thi Baut | 9/10 | 4680 days | 1% |
| Alice Berg | 8/10 | 4974 days | 1% |
| nl | 9/10 | 5083 days | 1% |
| Peter Kent | 9/10 | 5333 days | 1% |
| Antoine Lacoste | 6/10 | 5339 days | 1% |
| Hanna Clement | 6/10 | 5340 days | 1% |
| Numa Brouimet | 8/10 | 5342 days | 1% |
| Darina Kvasnicova | 8/10 | 5348 days | 1% |
| Richard Harvey | 9/10 | 5355 days | 1% |
| Mark Bogton | 9/10 | 5355 days | 1% |
| Hannah Bean | 7/10 | 5357 days | 1% |
| Elise Violet | 7/10 | 5359 days | 1% |
| Dominique | 8/10 | 5359 days | 1% |
| Lepied | 8/10 | 5362 days | 1% |
| Kimberley Mills | 10/10 | 5362 days | 1% |
| John Reynolds | 8/10 | 5370 days | 1% |
| Kurt Furuskar | 9/10 | 5386 days | 1% |
| Barsch, Arwed & Gertrud | 10/10 | 5406 days | 1% |
| Jan & Marian | 10/10 | 5449 days | 1% |
| Natascha Rachel | 3/10 | 5657 days | 0% |
| P Bukal | 10/10 | 5691 days | 1% |
| Kendall | 8/10 | 5695 days | 1% |
| Michael Simmang | 10/10 | 5700 days | 1% |
| Dave Patterson | 8/10 | 5703 days | 1% |
| Jerven and Kim | 3/10 | 5705 days | 0% |
| Katy Bourne | 7/10 | 5706 days | 1% |
| Claudio | 3/10 | 5718 days | 0% |
| Walter Peters | 9/10 | 5724 days | 1% |
| Claire Hoyland | 9/10 | 5727 days | 1% |
| Eva Stauderova | 9/10 | 5731 days | 1% |
| Amanda Craig | 7/10 | 5734 days | 1% |
| D Oostrum | 8/10 | 5735 days | 1% |
| C Gobl | 8/10 | 5739 days | 1% |
| Rosey834 | 9/10 | 5802 days | 1% |
| JimBradshaw | 9/10 | 5955 days | 1% |
| KieranE | 7/10 | 6016 days | 1% |
| Victoria Slater | 10/10 | 6051 days | 1% |
| Andy & Louise Dutton | 10/10 | 6064 days | 1% |
| Leonard Vans | 7/10 | 6077 days | 1% |
| Cecile | 9/10 | 6080 days | 1% |
| Maria Lorentzen | 9/10 | 6084 days | 1% |
| Sue Bennett | 9/10 | 6087 days | 1% |
| Robert Trostle | 10/10 | 6090 days | 1% |
| Mark | 8/10 | 6096 days | 1% |
| Bram-Jan M | 8/10 | 6104 days | 1% |
| Sebastian Kramer | 4/10 | 6111 days | 0% |
| Maarten | 9/10 | 6114 days | 1% |
| varenaee | 9/10 | 6152 days | 1% |
| Trisha T | 9/10 | 6167 days | 1% |
| Bue Verrept | 8/10 | 6174 days | 1% |
| Wim Put | 9/10 | 6193 days | 1% |
| Poonam Patel | 10/10 | 6308 days | 1% |
| KYinNZ | 9/10 | 6320 days | 1% |
| monniere | 8/10 | 6321 days | 1% |
| YohanM | 7/10 | 6406 days | 1% |
| David | 9/10 | 6411 days | 1% |
| Andrew | 8/10 | 6411 days | 1% |
| Yvanna | 7/10 | 6430 days | 1% |
| Maria | 8/10 | 6434 days | 1% |
| SarahK | 10/10 | 6444 days | 1% |
| RachelR | 9/10 | 6444 days | 1% |
| SofiaBrazil | 10/10 | 6444 days | 1% |
| MartinG | 8/10 | 6444 days | 1% |
| TatiamT | 10/10 | 6444 days | 1% |
| PellucoFrance | 8/10 | 6445 days | 1% |
| Ole | 8/10 | 6451 days | 1% |
| Tessa | 10/10 | 6461 days | 1% |
| DaraghD | 8/10 | 6468 days | 1% |
| Annika | 4/10 | 6475 days | 0% |
| Kirk | 6/10 | 6479 days | 1% |
| Evangelista | 6/10 | 6483 days | 1% |
| Corinna | 7/10 | 6485 days | 1% |
| Maud | 7/10 | 6515 days | 1% |
| Spyfox | 10/10 | 6517 days | 1% |
| Inga | 7/10 | 6536 days | 1% |
| Sabrina | 9/10 | 6542 days | 1% |
| Nadia | 7/10 | 6544 days | 1% |
| Gayle | 8/10 | 6568 days | 1% |
| Rebekka | 9/10 | 6575 days | 1% |
| Antonella | 10/10 | 6585 days | 1% |
| teamaustria | 9/10 | 6600 days | 1% |
| Katja | 7/10 | 6617 days | 1% |
| Fiona | 10/10 | 6630 days | 1% |
| Louise | 8/10 | 6630 days | 1% |
| fgregory | 10/10 | 6673 days | 1% |
| Bonny Doon | 6/10 | 6674 days | 1% |
| Toni Keown | 3/10 | 6766 days | 0% |
| Naoko | 5/10 | 6777 days | 1% |
| Olaf Penn | 7/10 | 6802 days | 1% |
| Mie Toft Pedersen | 10/10 | 6807 days | 1% |
| Tobias Rahm | 6/10 | 6816 days | 1% |
| Haemnerli | 8/10 | 6816 days | 1% |
| Maruja | 9/10 | 6854 days | 1% |
| Maria | 5/10 | 6854 days | 1% |
| Amanda Finger | 9/10 | 6859 days | 1% |
| Desiree Muri | 10/10 | 6859 days | 1% |
| Andrew Porter | 8/10 | 6859 days | 1% |
| Kay | 9/10 | 6882 days | 1% |
| Martin Nigschit | 6/10 | 6885 days | 1% |
| lawrence Walker | 8/10 | 6885 days | 1% |
| Fiona | 9/10 | 6892 days | 1% |
| Neil Cooke | 7/10 | 6893 days | 1% |
| Willemien | 8/10 | 6903 days | 1% |
| Kimberley Mayer | 9/10 | 6903 days | 1% |
| Kim | 10/10 | 7098 days | 1% |
| Stacey | 7/10 | 7121 days | 1% |
| Michael | 8/10 | 7134 days | 1% |
| Jules | 6/10 | 7139 days | 1% |
| Fran | 7/10 | 7141 days | 1% |
| Dave | 6/10 | 7141 days | 1% |
| Bas Marieke | 8/10 | 7152 days | 1% |
| Detlef | 4/10 | 7155 days | 0% |
| Jenny | 7/10 | 7157 days | 1% |
| Duncan | 7/10 | 7170 days | 1% |
| Nissa | 6/10 | 7176 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
-2.76% 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 151 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 148 | -2.71% |
| 149 | -2.73% |
| 150 | -2.74% |
| 151 | -2.76% |
| 152 | -2.78% |
| 153 | -2.80% |
| 154 | -2.82% |
| … | … |
Balancing Adjustment
13.56% 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.