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
132 Valid Reviews
The Polynesian Spa experience has a total of 135 reviews. There are 132 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 132 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 | 0 |
|
0% |
78.86% Average
The raw data average (mean) for all the Polynesian Spa valid reviews is 78.86% and is based on 132 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 132 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
80.09%
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 |
|---|---|---|---|
| Joonas Lehtomaki | 4/10 | 3392 days | 55% |
| Margot | 7/10 | 3395 days | 95% |
| Philip Sheridan | 7/10 | 3404 days | 94% |
| John Edwards | 9/10 | 3421 days | 100% |
| Cathy La Frenais | 8/10 | 3662 days | 63% |
| Marie Bocquier | 8/10 | 3671 days | 62% |
| Felix | 8/10 | 3706 days | 57% |
| Fabian | 7/10 | 3707 days | 52% |
| Juro | 7/10 | 3707 days | 52% |
| Sandra | 7/10 | 3717 days | 50% |
| Franziska and Sabine | 8/10 | 3725 days | 54% |
| Martina | 8/10 | 3733 days | 53% |
| Jessie Sabine | 7/10 | 4433 days | 29% |
| Matthew Trezise | 7/10 | 4433 days | 29% |
| Frederic Gazzarin | 10/10 | 4438 days | 35% |
| Patricia Gazzarin | 9/10 | 4438 days | 34% |
| Melissa Hermansson | 8/10 | 4441 days | 33% |
| Thi Baut | 9/10 | 4478 days | 34% |
| Alice Berg | 8/10 | 4772 days | 33% |
| nl | 9/10 | 4881 days | 34% |
| Peter Kent | 9/10 | 5131 days | 34% |
| Antoine Lacoste | 6/10 | 5137 days | 24% |
| Hanna Clement | 6/10 | 5138 days | 24% |
| Numa Brouimet | 8/10 | 5140 days | 33% |
| Darina Kvasnicova | 8/10 | 5146 days | 33% |
| Richard Harvey | 9/10 | 5153 days | 34% |
| Mark Bogton | 9/10 | 5153 days | 34% |
| Hannah Bean | 7/10 | 5155 days | 29% |
| Elise Violet | 7/10 | 5157 days | 29% |
| Dominique | 8/10 | 5157 days | 33% |
| Lepied | 8/10 | 5160 days | 33% |
| Kimberley Mills | 10/10 | 5160 days | 35% |
| John Reynolds | 8/10 | 5168 days | 33% |
| Kurt Furuskar | 9/10 | 5184 days | 34% |
| Barsch, Arwed & Gertrud | 10/10 | 5204 days | 35% |
| Jan & Marian | 10/10 | 5247 days | 35% |
| Natascha Rachel | 3/10 | 5455 days | 0% |
| P Bukal | 10/10 | 5489 days | 35% |
| Kendall | 8/10 | 5493 days | 33% |
| Michael Simmang | 10/10 | 5498 days | 35% |
| Dave Patterson | 8/10 | 5501 days | 33% |
| Jerven and Kim | 3/10 | 5503 days | 0% |
| Katy Bourne | 7/10 | 5504 days | 29% |
| Claudio | 3/10 | 5516 days | 0% |
| Walter Peters | 9/10 | 5522 days | 34% |
| Claire Hoyland | 9/10 | 5525 days | 34% |
| Eva Stauderova | 9/10 | 5529 days | 34% |
| Amanda Craig | 7/10 | 5532 days | 29% |
| D Oostrum | 8/10 | 5533 days | 33% |
| C Gobl | 8/10 | 5537 days | 33% |
| Rosey834 | 9/10 | 5600 days | 34% |
| JimBradshaw | 9/10 | 5753 days | 34% |
| KieranE | 7/10 | 5814 days | 29% |
| Victoria Slater | 10/10 | 5849 days | 35% |
| Andy & Louise Dutton | 10/10 | 5862 days | 35% |
| Leonard Vans | 7/10 | 5875 days | 29% |
| Cecile | 9/10 | 5878 days | 34% |
| Maria Lorentzen | 9/10 | 5882 days | 34% |
| Sue Bennett | 9/10 | 5885 days | 34% |
| Robert Trostle | 10/10 | 5888 days | 35% |
| Mark | 8/10 | 5894 days | 33% |
| Bram-Jan M | 8/10 | 5902 days | 33% |
| Sebastian Kramer | 4/10 | 5909 days | 8% |
| Maarten | 9/10 | 5912 days | 34% |
| varenaee | 9/10 | 5950 days | 34% |
| Trisha T | 9/10 | 5965 days | 34% |
| Bue Verrept | 8/10 | 5972 days | 33% |
| Wim Put | 9/10 | 5991 days | 34% |
| Poonam Patel | 10/10 | 6106 days | 35% |
| KYinNZ | 9/10 | 6118 days | 34% |
| monniere | 8/10 | 6119 days | 33% |
| YohanM | 7/10 | 6204 days | 29% |
| David | 9/10 | 6209 days | 34% |
| Andrew | 8/10 | 6209 days | 33% |
| Yvanna | 7/10 | 6228 days | 29% |
| Maria | 8/10 | 6232 days | 33% |
| SarahK | 10/10 | 6242 days | 35% |
| RachelR | 9/10 | 6242 days | 34% |
| SofiaBrazil | 10/10 | 6242 days | 35% |
| MartinG | 8/10 | 6242 days | 33% |
| TatiamT | 10/10 | 6242 days | 35% |
| PellucoFrance | 8/10 | 6243 days | 33% |
| Ole | 8/10 | 6249 days | 33% |
| Tessa | 10/10 | 6259 days | 35% |
| DaraghD | 8/10 | 6266 days | 33% |
| Annika | 4/10 | 6273 days | 8% |
| Kirk | 6/10 | 6277 days | 24% |
| Evangelista | 6/10 | 6281 days | 24% |
| Corinna | 7/10 | 6283 days | 29% |
| Maud | 7/10 | 6313 days | 29% |
| Spyfox | 10/10 | 6315 days | 35% |
| Inga | 7/10 | 6334 days | 29% |
| Sabrina | 9/10 | 6340 days | 34% |
| Nadia | 7/10 | 6342 days | 29% |
| Gayle | 8/10 | 6366 days | 33% |
| Rebekka | 9/10 | 6373 days | 34% |
| Antonella | 10/10 | 6383 days | 35% |
| teamaustria | 9/10 | 6398 days | 34% |
| Katja | 7/10 | 6415 days | 29% |
| Fiona | 10/10 | 6428 days | 35% |
| Louise | 8/10 | 6428 days | 33% |
| fgregory | 10/10 | 6471 days | 35% |
| Bonny Doon | 6/10 | 6472 days | 24% |
| Toni Keown | 3/10 | 6564 days | 0% |
| Naoko | 5/10 | 6575 days | 17% |
| Olaf Penn | 7/10 | 6600 days | 29% |
| Mie Toft Pedersen | 10/10 | 6605 days | 35% |
| Tobias Rahm | 6/10 | 6614 days | 24% |
| Haemnerli | 8/10 | 6614 days | 33% |
| Maruja | 9/10 | 6652 days | 34% |
| Maria | 5/10 | 6652 days | 17% |
| Amanda Finger | 9/10 | 6657 days | 34% |
| Desiree Muri | 10/10 | 6657 days | 35% |
| Andrew Porter | 8/10 | 6657 days | 33% |
| Kay | 9/10 | 6680 days | 34% |
| Martin Nigschit | 6/10 | 6683 days | 24% |
| lawrence Walker | 8/10 | 6683 days | 33% |
| Fiona | 9/10 | 6690 days | 34% |
| Neil Cooke | 7/10 | 6691 days | 29% |
| Willemien | 8/10 | 6701 days | 33% |
| Kimberley Mayer | 9/10 | 6701 days | 34% |
| Kim | 10/10 | 6896 days | 35% |
| Stacey | 7/10 | 6919 days | 29% |
| Michael | 8/10 | 6932 days | 33% |
| Jules | 6/10 | 6937 days | 24% |
| Fran | 7/10 | 6939 days | 29% |
| Dave | 6/10 | 6939 days | 24% |
| Bas Marieke | 8/10 | 6950 days | 33% |
| Detlef | 4/10 | 6953 days | 8% |
| Jenny | 7/10 | 6955 days | 29% |
| Duncan | 7/10 | 6968 days | 29% |
| Nissa | 6/10 | 6974 days | 24% |
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
-3.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 | -3.68% |
| 198 | -3.70% |
| 199 | -3.72% |
| 200 | -3.74% |
| 201 | -3.76% |
| 202 | -3.77% |
| 203 | -3.79% |
| … | … |
Balancing Adjustment
4.14% 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
80%
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.