G'day, 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
64.40%
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 | 260 days | 100% |
| Joonas Lehtomaki | 4/10 | 2831 days | 5% |
| Margot | 7/10 | 2834 days | 7% |
| Philip Sheridan | 7/10 | 2843 days | 7% |
| John Edwards | 9/10 | 2860 days | 7% |
| Cathy La Frenais | 8/10 | 3101 days | 6% |
| Marie Bocquier | 8/10 | 3110 days | 6% |
| Felix | 8/10 | 3145 days | 6% |
| Fabian | 7/10 | 3146 days | 5% |
| Juro | 7/10 | 3146 days | 5% |
| Sandra | 7/10 | 3156 days | 5% |
| Franziska and Sabine | 8/10 | 3164 days | 6% |
| Martina | 8/10 | 3172 days | 6% |
| Jessie Sabine | 7/10 | 3872 days | 2% |
| Matthew Trezise | 7/10 | 3872 days | 2% |
| Frederic Gazzarin | 10/10 | 3877 days | 2% |
| Patricia Gazzarin | 9/10 | 3877 days | 2% |
| Melissa Hermansson | 8/10 | 3880 days | 2% |
| Thi Baut | 9/10 | 3917 days | 2% |
| Alice Berg | 8/10 | 4211 days | 1% |
| nl | 9/10 | 4320 days | 0% |
| Peter Kent | 9/10 | 4570 days | 2% |
| Antoine Lacoste | 6/10 | 4576 days | 2% |
| Hanna Clement | 6/10 | 4577 days | 2% |
| Numa Brouimet | 8/10 | 4579 days | 2% |
| Darina Kvasnicova | 8/10 | 4585 days | 2% |
| Richard Harvey | 9/10 | 4592 days | 2% |
| Mark Bogton | 9/10 | 4592 days | 2% |
| Hannah Bean | 7/10 | 4594 days | 2% |
| Elise Violet | 7/10 | 4596 days | 2% |
| Dominique | 8/10 | 4596 days | 2% |
| Lepied | 8/10 | 4599 days | 2% |
| Kimberley Mills | 10/10 | 4599 days | 2% |
| John Reynolds | 8/10 | 4607 days | 2% |
| Kurt Furuskar | 9/10 | 4623 days | 2% |
| Barsch, Arwed & Gertrud | 10/10 | 4643 days | 2% |
| Jan & Marian | 10/10 | 4686 days | 2% |
| Natascha Rachel | 3/10 | 4894 days | 1% |
| P Bukal | 10/10 | 4928 days | 2% |
| Kendall | 8/10 | 4932 days | 2% |
| Michael Simmang | 10/10 | 4937 days | 2% |
| Dave Patterson | 8/10 | 4940 days | 2% |
| Jerven and Kim | 3/10 | 4942 days | 1% |
| Katy Bourne | 7/10 | 4943 days | 2% |
| Claudio | 3/10 | 4955 days | 1% |
| Walter Peters | 9/10 | 4961 days | 2% |
| Claire Hoyland | 9/10 | 4964 days | 2% |
| Eva Stauderova | 9/10 | 4968 days | 2% |
| Amanda Craig | 7/10 | 4971 days | 2% |
| D Oostrum | 8/10 | 4972 days | 2% |
| C Gobl | 8/10 | 4976 days | 2% |
| Rosey834 | 9/10 | 5039 days | 2% |
| JimBradshaw | 9/10 | 5192 days | 2% |
| KieranE | 7/10 | 5253 days | 2% |
| Victoria Slater | 10/10 | 5288 days | 2% |
| Andy & Louise Dutton | 10/10 | 5301 days | 2% |
| Leonard Vans | 7/10 | 5314 days | 2% |
| Cecile | 9/10 | 5317 days | 2% |
| Maria Lorentzen | 9/10 | 5321 days | 2% |
| Sue Bennett | 9/10 | 5324 days | 2% |
| Robert Trostle | 10/10 | 5327 days | 2% |
| Mark | 8/10 | 5333 days | 2% |
| Bram-Jan M | 8/10 | 5341 days | 2% |
| Sebastian Kramer | 4/10 | 5348 days | 1% |
| Maarten | 9/10 | 5351 days | 2% |
| varenaee | 9/10 | 5389 days | 2% |
| Trisha T | 9/10 | 5404 days | 2% |
| Bue Verrept | 8/10 | 5411 days | 2% |
| Wim Put | 9/10 | 5430 days | 2% |
| Poonam Patel | 10/10 | 5545 days | 2% |
| KYinNZ | 9/10 | 5557 days | 2% |
| monniere | 8/10 | 5558 days | 2% |
| YohanM | 7/10 | 5643 days | 2% |
| David | 9/10 | 5648 days | 2% |
| Andrew | 8/10 | 5648 days | 2% |
| Yvanna | 7/10 | 5667 days | 2% |
| Maria | 8/10 | 5671 days | 2% |
| SarahK | 10/10 | 5681 days | 2% |
| RachelR | 9/10 | 5681 days | 2% |
| SofiaBrazil | 10/10 | 5681 days | 2% |
| MartinG | 8/10 | 5681 days | 2% |
| TatiamT | 10/10 | 5681 days | 2% |
| PellucoFrance | 8/10 | 5682 days | 2% |
| Ole | 8/10 | 5688 days | 2% |
| Tessa | 10/10 | 5698 days | 2% |
| DaraghD | 8/10 | 5705 days | 2% |
| Annika | 4/10 | 5712 days | 1% |
| Kirk | 6/10 | 5716 days | 2% |
| Evangelista | 6/10 | 5720 days | 2% |
| Corinna | 7/10 | 5722 days | 2% |
| Maud | 7/10 | 5752 days | 2% |
| Spyfox | 10/10 | 5754 days | 2% |
| Inga | 7/10 | 5773 days | 2% |
| Sabrina | 9/10 | 5779 days | 2% |
| Nadia | 7/10 | 5781 days | 2% |
| Gayle | 8/10 | 5804 days | 2% |
| Rebekka | 9/10 | 5811 days | 2% |
| Antonella | 10/10 | 5822 days | 2% |
| teamaustria | 9/10 | 5837 days | 2% |
| Katja | 7/10 | 5854 days | 2% |
| Fiona | 10/10 | 5867 days | 2% |
| Louise | 8/10 | 5867 days | 2% |
| fgregory | 10/10 | 5910 days | 2% |
| Bonny Doon | 6/10 | 5911 days | 2% |
| Toni Keown | 3/10 | 6003 days | 1% |
| Naoko | 5/10 | 6014 days | 2% |
| Olaf Penn | 7/10 | 6039 days | 2% |
| Mie Toft Pedersen | 10/10 | 6044 days | 2% |
| Tobias Rahm | 6/10 | 6053 days | 2% |
| Haemnerli | 8/10 | 6053 days | 2% |
| Maruja | 9/10 | 6091 days | 2% |
| Maria | 5/10 | 6091 days | 2% |
| Amanda Finger | 9/10 | 6096 days | 2% |
| Desiree Muri | 10/10 | 6096 days | 2% |
| Andrew Porter | 8/10 | 6096 days | 2% |
| Kay | 9/10 | 6119 days | 2% |
| Martin Nigschit | 6/10 | 6122 days | 2% |
| lawrence Walker | 8/10 | 6122 days | 2% |
| Fiona | 9/10 | 6129 days | 2% |
| Neil Cooke | 7/10 | 6130 days | 2% |
| Willemien | 8/10 | 6140 days | 2% |
| Kimberley Mayer | 9/10 | 6140 days | 2% |
| Kim | 10/10 | 6335 days | 2% |
| Stacey | 7/10 | 6358 days | 2% |
| Michael | 8/10 | 6371 days | 2% |
| Jules | 6/10 | 6376 days | 2% |
| Fran | 7/10 | 6378 days | 2% |
| Dave | 6/10 | 6378 days | 2% |
| Bas Marieke | 8/10 | 6389 days | 2% |
| Detlef | 4/10 | 6392 days | 1% |
| Jenny | 7/10 | 6394 days | 2% |
| Duncan | 7/10 | 6407 days | 2% |
| Nissa | 6/10 | 6413 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
-2.98% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 76 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 | -2.94% |
| 198 | -2.95% |
| 199 | -2.97% |
| 200 | -2.98% |
| 201 | -3.00% |
| 202 | -3.01% |
| 203 | -3.03% |
| … | … |
Balancing Adjustment
12.89% 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.