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 Fox Glacier Guiding.
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.
Fox Glacier Guiding
Valid Reviews
212 Valid Reviews
The Fox Glacier Guiding experience has a total of 212 valid reviews. There are no 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 212 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 71 |
|
33% |
| 9/10 | 52 |
|
25% |
| 8/10 | 54 |
|
25% |
| 7/10 | 18 |
|
8% |
| 6/10 | 7 |
|
3% |
| 5/10 | 3 |
|
1% |
| 4/10 | 6 |
|
3% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
0% |
85.75% Average
The raw data average (mean) for all the Fox Glacier Guiding valid reviews is 85.75% and is based on 212 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
185 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 212 valid reviews, the experience has 185 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 185 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 57 |
|
31% |
| 9/10 | 47 |
|
25% |
| 8/10 | 51 |
|
28% |
| 7/10 | 17 |
|
9% |
| 6/10 | 7 |
|
4% |
| 5/10 | 2 |
|
1% |
| 4/10 | 4 |
|
2% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
85.84% Average
The raw data average (mean) for all the Fox Glacier Guiding face-to-face reviews is 85.84% and is based on 185 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.37%
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 |
|---|---|---|---|
| Ingrid | 10/10 | 1713 days | 100% |
| Mona Uttendorf | 10/10 | 3394 days | 34% |
| Sebastian Braun | 10/10 | 3399 days | 33% |
| Tanya Davies | 10/10 | 3447 days | 32% |
| Danielle Stam | 7/10 | 3702 days | 21% |
| Carmen | 10/10 | 4018 days | 12% |
| Claudia Hillebrand | 4/10 | 4366 days | 0% |
| Max Backelandt | 9/10 | 4372 days | 0% |
| Marie Toulemonde | 10/10 | 4372 days | 0% |
| Mark | 7/10 | 4375 days | 0% |
| Daniel Robledo | 8/10 | 4394 days | 17% |
| Maria Camen Santos Lopez | 9/10 | 4394 days | 17% |
| Mara | 9/10 | 4395 days | 17% |
| Andrea Morello | 7/10 | 4395 days | 16% |
| Maria = Moller Hansen | 9/10 | 4404 days | 17% |
| Simon Tanguy | 9/10 | 4412 days | 17% |
| Gassat | 4/10 | 4415 days | 11% |
| Lena Jensen | 9/10 | 4428 days | 17% |
| Jesper Andersen | 9/10 | 4428 days | 17% |
| Claire Lieval | 9/10 | 4440 days | 17% |
| Pioter Jurkowski | 7/10 | 4452 days | 16% |
| Jesse Farrell | 8/10 | 4461 days | 17% |
| Philipp Haass | 6/10 | 4461 days | 15% |
| Chantal | 10/10 | 4465 days | 17% |
| Ken S | 10/10 | 4483 days | 17% |
| Ron Stenhouse | 6/10 | 4727 days | 15% |
| Elizabeth Stenhouse | 8/10 | 4727 days | 17% |
| Andreas Jarvel | 9/10 | 4741 days | 17% |
| Pete Wilson | 4/10 | 4744 days | 11% |
| Marcel | 7/10 | 4751 days | 16% |
| Maria | 8/10 | 4751 days | 17% |
| Clare Cannon | 8/10 | 4768 days | 17% |
| Sara Omary | 9/10 | 4768 days | 17% |
| S M | 10/10 | 4786 days | 17% |
| Alison Langley | 8/10 | 4830 days | 17% |
| Liam Day | 9/10 | 4834 days | 17% |
| Martyn Kool | 8/10 | 4834 days | 17% |
| Michael Kretzschmar | 9/10 | 4834 days | 17% |
| Marieke | 9/10 | 4834 days | 17% |
| Kevin Desjandino | 10/10 | 4835 days | 17% |
| Sharon Yates | 10/10 | 4836 days | 17% |
| Frans Derks | 8/10 | 4841 days | 17% |
| Alexandra van den Brack | 8/10 | 4845 days | 17% |
| Frank and Suzanne | 8/10 | 4848 days | 17% |
| Erik Funk | 8/10 | 4855 days | 17% |
| tanyap | 4/10 | 4878 days | 11% |
| Rob Klauer | 8/10 | 5111 days | 17% |
| Petr Stepanek | 7/10 | 5115 days | 16% |
| Alan Brady | 9/10 | 5120 days | 17% |
| sidcupjon | 9/10 | 5123 days | 17% |
| Robert & Bridget Holden | 8/10 | 5132 days | 17% |
| Vincent & Lian | 9/10 | 5133 days | 17% |
| Stam | 9/10 | 5134 days | 17% |
| Tim & Judith | 8/10 | 5135 days | 17% |
| Rob Gill | 10/10 | 5136 days | 17% |
| Cindy & Glen Kerunsky | 10/10 | 5139 days | 17% |
| R Seiferling | 10/10 | 5144 days | 17% |
| Ursi Meier | 9/10 | 5146 days | 17% |
| Thomas Krause | 8/10 | 5146 days | 17% |
| Hugo ten Brink | 8/10 | 5150 days | 17% |
| kiwifrenchy | 10/10 | 5152 days | 17% |
| Katja Klein | 9/10 | 5197 days | 17% |
| Judith | 8/10 | 5203 days | 17% |
| damaca | 10/10 | 5244 days | 17% |
| KarenW | 10/10 | 5304 days | 17% |
| neilqecosse | 9/10 | 5304 days | 17% |
| MeganJane_85 | 1/10 | 5427 days | 7% |
| Marcus | 9/10 | 5447 days | 17% |
| Lisa Milton | 10/10 | 5450 days | 17% |
| Ken Talan | 10/10 | 5453 days | 17% |
| Alita Smith | 9/10 | 5461 days | 17% |
| Leroy Dimitri | 10/10 | 5471 days | 17% |
| Mr & Mrs Palmer | 9/10 | 5475 days | 17% |
| Sayaka | 10/10 | 5475 days | 17% |
| Stoop | 8/10 | 5475 days | 17% |
| Jacob | 9/10 | 5476 days | 17% |
| Maike | 9/10 | 5477 days | 17% |
| Kauzta | 10/10 | 5477 days | 17% |
| Laura Malins | 8/10 | 5479 days | 17% |
| K & J Overton | 8/10 | 5483 days | 17% |
| Betten | 10/10 | 5488 days | 17% |
| taniadeanryanbrittany | 8/10 | 5489 days | 17% |
| Nicolas | 7/10 | 5490 days | 16% |
| Lenore Dejong | 9/10 | 5491 days | 17% |
| Manu & Gabi | 10/10 | 5494 days | 17% |
| Laura Hayes | 10/10 | 5504 days | 17% |
| Maite Severins | 7/10 | 5508 days | 16% |
| Helen Keighley | 10/10 | 5509 days | 17% |
| Ryan Tull | 10/10 | 5512 days | 17% |
| Calvin Parsons | 8/10 | 5517 days | 17% |
| Christian Foerster | 7/10 | 5517 days | 16% |
| Kristie | 10/10 | 5540 days | 17% |
| elpo | 9/10 | 5761 days | 17% |
| Baumgarten | 8/10 | 5789 days | 17% |
| Stephen M | 7/10 | 5835 days | 16% |
| Corine van Been | 8/10 | 5836 days | 17% |
| s_butler | 10/10 | 5842 days | 17% |
| Benedict Fluthman | 6/10 | 5844 days | 15% |
| Peter Schmidt | 5/10 | 5854 days | 13% |
| Nicky and Andy Prescott | 10/10 | 5856 days | 17% |
| Jackie | 9/10 | 5873 days | 17% |
| Vincente Garrido | 8/10 | 5877 days | 17% |
| Keith Wilde | 10/10 | 5877 days | 17% |
| Ian E | 8/10 | 5878 days | 17% |
| kate | 5/10 | 5879 days | 13% |
| Rob | 8/10 | 5880 days | 17% |
| emily walters | 10/10 | 5882 days | 17% |
| Peter Ortner | 9/10 | 5891 days | 17% |
| Nigel Armstrong | 10/10 | 5893 days | 17% |
| Grainne Ahern | 4/10 | 5913 days | 11% |
| Chidlebyte | 10/10 | 5913 days | 17% |
| gabei | 7/10 | 5928 days | 16% |
| mariak | 7/10 | 5930 days | 16% |
| marijad | 10/10 | 5932 days | 17% |
| Paul Nugent | 8/10 | 5944 days | 17% |
| Misha | 10/10 | 5944 days | 17% |
| Alan Riley | 8/10 | 5956 days | 17% |
| Ann Riley | 8/10 | 5956 days | 17% |
| Eimear Doyle | 9/10 | 5956 days | 17% |
| MV Vroenhoven | 10/10 | 5959 days | 17% |
| Sara Reekmans | 9/10 | 5967 days | 17% |
| Emily and Alex | 9/10 | 5971 days | 17% |
| neilchelt | 10/10 | 5974 days | 17% |
| jank | 10/10 | 6034 days | 17% |
| alanvn | 9/10 | 6056 days | 17% |
| bogaard | 10/10 | 6069 days | 17% |
| lorah | 10/10 | 6077 days | 17% |
| joevw | 9/10 | 6142 days | 17% |
| OliverG1 | 8/10 | 6175 days | 17% |
| Tim_P | 6/10 | 6185 days | 15% |
| Nathalie | 8/10 | 6185 days | 17% |
| Sofie | 9/10 | 6188 days | 17% |
| ElissaH | 10/10 | 6190 days | 17% |
| KjellR | 9/10 | 6190 days | 17% |
| BonnieH | 9/10 | 6190 days | 17% |
| CharityW | 8/10 | 6190 days | 17% |
| Paul | 10/10 | 6191 days | 17% |
| eskim1018 | 9/10 | 6199 days | 17% |
| ChrisD | 10/10 | 6204 days | 17% |
| Christian Moll | 9/10 | 6204 days | 17% |
| david | 10/10 | 6204 days | 17% |
| Doll | 10/10 | 6211 days | 17% |
| A | 10/10 | 6219 days | 17% |
| Tolsten | 10/10 | 6219 days | 17% |
| GaryW | 8/10 | 6223 days | 17% |
| ElizabethF | 9/10 | 6223 days | 17% |
| Claudia | 4/10 | 6224 days | 11% |
| Jason | 7/10 | 6227 days | 16% |
| John | 8/10 | 6229 days | 17% |
| Hans | 8/10 | 6236 days | 17% |
| Carly | 7/10 | 6238 days | 16% |
| Jeffrey C | 10/10 | 6247 days | 17% |
| SueB | 10/10 | 6247 days | 17% |
| Dalit | 10/10 | 6254 days | 17% |
| Jon | 10/10 | 6259 days | 17% |
| Kathrin | 9/10 | 6261 days | 17% |
| Oliver | 8/10 | 6262 days | 17% |
| Patrick | 8/10 | 6264 days | 17% |
| Andrew | 8/10 | 6264 days | 17% |
| Graham | 6/10 | 6273 days | 15% |
| Maria | 10/10 | 6300 days | 17% |
| Jordi | 6/10 | 6308 days | 15% |
| nicole | 10/10 | 6310 days | 17% |
| Rowan | 9/10 | 6333 days | 17% |
| abby | 9/10 | 6344 days | 17% |
| Andrew | 9/10 | 6355 days | 17% |
| Anna | 10/10 | 6385 days | 17% |
| Atsuko | 8/10 | 6394 days | 17% |
| Trina | 10/10 | 6412 days | 17% |
| Terri Scott | 10/10 | 6423 days | 17% |
| Brian | 10/10 | 6436 days | 17% |
| Wolfgang | 8/10 | 6460 days | 17% |
| Gorka Rojas | 9/10 | 6460 days | 17% |
| Ashlee Roberts | 10/10 | 6485 days | 17% |
| Corin Kraft | 10/10 | 6529 days | 17% |
| Anke | 9/10 | 6537 days | 17% |
| Olga | 7/10 | 6554 days | 16% |
| Ben | 8/10 | 6559 days | 17% |
| Chris | 7/10 | 6565 days | 16% |
| Elizabeth Woodruff | 5/10 | 6568 days | 13% |
| Sandra Verbaarschot | 10/10 | 6568 days | 17% |
| Denise | 10/10 | 6571 days | 17% |
| Lisa Jones | 10/10 | 6575 days | 17% |
| Richard Anthony | 8/10 | 6575 days | 17% |
| Renske Tehurne | 8/10 | 6579 days | 17% |
| Robert | 10/10 | 6580 days | 17% |
| Elise | 10/10 | 6580 days | 17% |
| Fung | 10/10 | 6580 days | 17% |
| Omri Hasson | 9/10 | 6585 days | 17% |
| Aharon | 10/10 | 6586 days | 17% |
| Sue | 8/10 | 6592 days | 17% |
| Ondrej Kacena | 8/10 | 6599 days | 17% |
| Laurie | 8/10 | 6599 days | 17% |
| Eric P | 10/10 | 6607 days | 17% |
| Alex | 8/10 | 6616 days | 17% |
| Natalie | 10/10 | 6628 days | 17% |
| Paul Cowie | 7/10 | 6663 days | 16% |
| Ard | 8/10 | 6663 days | 17% |
| Gabriel Faber | 8/10 | 6663 days | 17% |
| Michael | 8/10 | 6673 days | 17% |
| purplekat99 | 8/10 | 6675 days | 17% |
| Wendy Williams | 9/10 | 6680 days | 17% |
| MrsWesley | 6/10 | 6914 days | 15% |
| John | 7/10 | 6920 days | 16% |
| Heike | 9/10 | 6927 days | 17% |
| Colin Sinclair | 10/10 | 6928 days | 17% |
| Angela Shearer | 8/10 | 6928 days | 17% |
| Loic | 9/10 | 6953 days | 17% |
| Reggie | 9/10 | 6954 days | 17% |
| FluerBlum | 8/10 | 6966 days | 17% |
| Hermann | 10/10 | 6967 days | 17% |
| Franz-Josef | 9/10 | 6970 days | 17% |
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 Fox Glacier Guiding experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 days. However the Fox Glacier Guiding 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 Fox Glacier Guiding experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.97% |
| 198 | -3.99% |
| 199 | -4.01% |
| 200 | -4.03% |
| 201 | -4.05% |
| 202 | -4.07% |
| 203 | -4.09% |
| … | … |
Balancing Adjustment
2.17% 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
85%
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.