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 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
64.78%
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 | 384 days | 100% |
| Joonas Lehtomaki | 4/10 | 2955 days | 5% |
| Margot | 7/10 | 2958 days | 7% |
| Philip Sheridan | 7/10 | 2967 days | 7% |
| John Edwards | 9/10 | 2984 days | 7% |
| Cathy La Frenais | 8/10 | 3225 days | 6% |
| Marie Bocquier | 8/10 | 3234 days | 6% |
| Felix | 8/10 | 3269 days | 6% |
| Fabian | 7/10 | 3270 days | 5% |
| Juro | 7/10 | 3270 days | 5% |
| Sandra | 7/10 | 3280 days | 5% |
| Franziska and Sabine | 8/10 | 3288 days | 5% |
| Martina | 8/10 | 3296 days | 5% |
| Jessie Sabine | 7/10 | 3996 days | 2% |
| Matthew Trezise | 7/10 | 3996 days | 2% |
| Frederic Gazzarin | 10/10 | 4001 days | 2% |
| Patricia Gazzarin | 9/10 | 4001 days | 2% |
| Melissa Hermansson | 8/10 | 4004 days | 2% |
| Thi Baut | 9/10 | 4041 days | 2% |
| Alice Berg | 8/10 | 4335 days | 0% |
| nl | 9/10 | 4444 days | 2% |
| Peter Kent | 9/10 | 4694 days | 2% |
| Antoine Lacoste | 6/10 | 4700 days | 2% |
| Hanna Clement | 6/10 | 4701 days | 2% |
| Numa Brouimet | 8/10 | 4703 days | 2% |
| Darina Kvasnicova | 8/10 | 4709 days | 2% |
| Richard Harvey | 9/10 | 4716 days | 2% |
| Mark Bogton | 9/10 | 4716 days | 2% |
| Hannah Bean | 7/10 | 4718 days | 2% |
| Elise Violet | 7/10 | 4720 days | 2% |
| Dominique | 8/10 | 4720 days | 2% |
| Lepied | 8/10 | 4723 days | 2% |
| Kimberley Mills | 10/10 | 4723 days | 2% |
| John Reynolds | 8/10 | 4731 days | 2% |
| Kurt Furuskar | 9/10 | 4747 days | 2% |
| Barsch, Arwed & Gertrud | 10/10 | 4767 days | 2% |
| Jan & Marian | 10/10 | 4810 days | 2% |
| Natascha Rachel | 3/10 | 5018 days | 1% |
| P Bukal | 10/10 | 5052 days | 2% |
| Kendall | 8/10 | 5056 days | 2% |
| Michael Simmang | 10/10 | 5061 days | 2% |
| Dave Patterson | 8/10 | 5064 days | 2% |
| Jerven and Kim | 3/10 | 5066 days | 1% |
| Katy Bourne | 7/10 | 5067 days | 2% |
| Claudio | 3/10 | 5079 days | 1% |
| Walter Peters | 9/10 | 5085 days | 2% |
| Claire Hoyland | 9/10 | 5088 days | 2% |
| Eva Stauderova | 9/10 | 5092 days | 2% |
| Amanda Craig | 7/10 | 5095 days | 2% |
| D Oostrum | 8/10 | 5096 days | 2% |
| C Gobl | 8/10 | 5100 days | 2% |
| Rosey834 | 9/10 | 5163 days | 2% |
| JimBradshaw | 9/10 | 5316 days | 2% |
| KieranE | 7/10 | 5377 days | 2% |
| Victoria Slater | 10/10 | 5412 days | 2% |
| Andy & Louise Dutton | 10/10 | 5425 days | 2% |
| Leonard Vans | 7/10 | 5438 days | 2% |
| Cecile | 9/10 | 5441 days | 2% |
| Maria Lorentzen | 9/10 | 5445 days | 2% |
| Sue Bennett | 9/10 | 5448 days | 2% |
| Robert Trostle | 10/10 | 5451 days | 2% |
| Mark | 8/10 | 5457 days | 2% |
| Bram-Jan M | 8/10 | 5465 days | 2% |
| Sebastian Kramer | 4/10 | 5472 days | 2% |
| Maarten | 9/10 | 5475 days | 2% |
| varenaee | 9/10 | 5513 days | 2% |
| Trisha T | 9/10 | 5528 days | 2% |
| Bue Verrept | 8/10 | 5535 days | 2% |
| Wim Put | 9/10 | 5554 days | 2% |
| Poonam Patel | 10/10 | 5669 days | 2% |
| KYinNZ | 9/10 | 5681 days | 2% |
| monniere | 8/10 | 5682 days | 2% |
| YohanM | 7/10 | 5767 days | 2% |
| David | 9/10 | 5772 days | 2% |
| Andrew | 8/10 | 5772 days | 2% |
| Yvanna | 7/10 | 5791 days | 2% |
| Maria | 8/10 | 5796 days | 2% |
| SarahK | 10/10 | 5805 days | 2% |
| RachelR | 9/10 | 5805 days | 2% |
| SofiaBrazil | 10/10 | 5805 days | 2% |
| MartinG | 8/10 | 5805 days | 2% |
| TatiamT | 10/10 | 5805 days | 2% |
| PellucoFrance | 8/10 | 5806 days | 2% |
| Ole | 8/10 | 5812 days | 2% |
| Tessa | 10/10 | 5823 days | 2% |
| DaraghD | 8/10 | 5829 days | 2% |
| Annika | 4/10 | 5837 days | 2% |
| Kirk | 6/10 | 5840 days | 2% |
| Evangelista | 6/10 | 5844 days | 2% |
| Corinna | 7/10 | 5846 days | 2% |
| Maud | 7/10 | 5876 days | 2% |
| Spyfox | 10/10 | 5879 days | 2% |
| Inga | 7/10 | 5898 days | 2% |
| Sabrina | 9/10 | 5904 days | 2% |
| Nadia | 7/10 | 5906 days | 2% |
| Gayle | 8/10 | 5929 days | 2% |
| Rebekka | 9/10 | 5936 days | 2% |
| Antonella | 10/10 | 5947 days | 2% |
| teamaustria | 9/10 | 5961 days | 2% |
| Katja | 7/10 | 5979 days | 2% |
| Fiona | 10/10 | 5992 days | 2% |
| Louise | 8/10 | 5992 days | 2% |
| fgregory | 10/10 | 6035 days | 2% |
| Bonny Doon | 6/10 | 6035 days | 2% |
| Toni Keown | 3/10 | 6127 days | 1% |
| Naoko | 5/10 | 6138 days | 2% |
| Olaf Penn | 7/10 | 6163 days | 2% |
| Mie Toft Pedersen | 10/10 | 6168 days | 2% |
| Tobias Rahm | 6/10 | 6177 days | 2% |
| Haemnerli | 8/10 | 6177 days | 2% |
| Maruja | 9/10 | 6215 days | 2% |
| Maria | 5/10 | 6215 days | 2% |
| Amanda Finger | 9/10 | 6220 days | 2% |
| Desiree Muri | 10/10 | 6220 days | 2% |
| Andrew Porter | 8/10 | 6220 days | 2% |
| Kay | 9/10 | 6243 days | 2% |
| Martin Nigschit | 6/10 | 6246 days | 2% |
| lawrence Walker | 8/10 | 6246 days | 2% |
| Fiona | 9/10 | 6253 days | 2% |
| Neil Cooke | 7/10 | 6254 days | 2% |
| Willemien | 8/10 | 6264 days | 2% |
| Kimberley Mayer | 9/10 | 6264 days | 2% |
| Kim | 10/10 | 6459 days | 2% |
| Stacey | 7/10 | 6482 days | 2% |
| Michael | 8/10 | 6495 days | 2% |
| Jules | 6/10 | 6500 days | 2% |
| Fran | 7/10 | 6502 days | 2% |
| Dave | 6/10 | 6502 days | 2% |
| Bas Marieke | 8/10 | 6513 days | 2% |
| Detlef | 4/10 | 6516 days | 2% |
| Jenny | 7/10 | 6518 days | 2% |
| Duncan | 7/10 | 6531 days | 2% |
| Nissa | 6/10 | 6537 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
-4.10% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 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 | -4.04% |
| 198 | -4.06% |
| 199 | -4.08% |
| 200 | -4.10% |
| 201 | -4.12% |
| 202 | -4.14% |
| 203 | -4.16% |
| … | … |
Balancing Adjustment
13.47% 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.