Hey, 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
88.79%
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 | 1239 days | 100% |
| Mona Uttendorf | 10/10 | 2919 days | 12% |
| Sebastian Braun | 10/10 | 2924 days | 12% |
| Tanya Davies | 10/10 | 2973 days | 11% |
| Danielle Stam | 7/10 | 3227 days | 8% |
| Carmen | 10/10 | 3543 days | 7% |
| Claudia Hillebrand | 4/10 | 3891 days | 2% |
| Max Backelandt | 9/10 | 3897 days | 4% |
| Marie Toulemonde | 10/10 | 3897 days | 4% |
| Mark | 7/10 | 3900 days | 4% |
| Daniel Robledo | 8/10 | 3919 days | 4% |
| Maria Camen Santos Lopez | 9/10 | 3919 days | 4% |
| Mara | 9/10 | 3920 days | 4% |
| Andrea Morello | 7/10 | 3920 days | 3% |
| Maria = Moller Hansen | 9/10 | 3929 days | 4% |
| Simon Tanguy | 9/10 | 3937 days | 3% |
| Gassat | 4/10 | 3940 days | 2% |
| Lena Jensen | 9/10 | 3953 days | 3% |
| Jesper Andersen | 9/10 | 3953 days | 3% |
| Claire Lieval | 9/10 | 3965 days | 3% |
| Pioter Jurkowski | 7/10 | 3977 days | 3% |
| Jesse Farrell | 8/10 | 3986 days | 3% |
| Philipp Haass | 6/10 | 3986 days | 3% |
| Chantal | 10/10 | 3990 days | 3% |
| Ken S | 10/10 | 4008 days | 3% |
| Ron Stenhouse | 6/10 | 4252 days | 1% |
| Elizabeth Stenhouse | 8/10 | 4252 days | 1% |
| Andreas Jarvel | 9/10 | 4266 days | 1% |
| Pete Wilson | 4/10 | 4269 days | 1% |
| Marcel | 7/10 | 4276 days | 1% |
| Maria | 8/10 | 4276 days | 1% |
| Clare Cannon | 8/10 | 4293 days | 1% |
| Sara Omary | 9/10 | 4293 days | 1% |
| S M | 10/10 | 4311 days | 0% |
| Alison Langley | 8/10 | 4355 days | 0% |
| Liam Day | 9/10 | 4359 days | 0% |
| Martyn Kool | 8/10 | 4359 days | 0% |
| Michael Kretzschmar | 9/10 | 4359 days | 0% |
| Marieke | 9/10 | 4359 days | 0% |
| Kevin Desjandino | 10/10 | 4360 days | 0% |
| Sharon Yates | 10/10 | 4361 days | 0% |
| Frans Derks | 8/10 | 4366 days | 0% |
| Alexandra van den Brack | 8/10 | 4370 days | 0% |
| Frank and Suzanne | 8/10 | 4373 days | 0% |
| Erik Funk | 8/10 | 4380 days | 4% |
| tanyap | 4/10 | 4403 days | 3% |
| Rob Klauer | 8/10 | 4636 days | 4% |
| Petr Stepanek | 7/10 | 4640 days | 4% |
| Alan Brady | 9/10 | 4645 days | 4% |
| sidcupjon | 9/10 | 4648 days | 4% |
| Robert & Bridget Holden | 8/10 | 4657 days | 4% |
| Vincent & Lian | 9/10 | 4658 days | 4% |
| Stam | 9/10 | 4659 days | 4% |
| Tim & Judith | 8/10 | 4660 days | 4% |
| Rob Gill | 10/10 | 4661 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4664 days | 4% |
| R Seiferling | 10/10 | 4669 days | 4% |
| Ursi Meier | 9/10 | 4671 days | 4% |
| Thomas Krause | 8/10 | 4671 days | 4% |
| Hugo ten Brink | 8/10 | 4675 days | 4% |
| kiwifrenchy | 10/10 | 4677 days | 4% |
| Katja Klein | 9/10 | 4722 days | 4% |
| Judith | 8/10 | 4728 days | 4% |
| damaca | 10/10 | 4769 days | 4% |
| KarenW | 10/10 | 4830 days | 4% |
| neilqecosse | 9/10 | 4830 days | 4% |
| MeganJane_85 | 1/10 | 4953 days | 2% |
| Marcus | 9/10 | 4973 days | 4% |
| Lisa Milton | 10/10 | 4976 days | 4% |
| Ken Talan | 10/10 | 4979 days | 4% |
| Alita Smith | 9/10 | 4986 days | 4% |
| Leroy Dimitri | 10/10 | 4996 days | 4% |
| Mr & Mrs Palmer | 9/10 | 5000 days | 4% |
| Sayaka | 10/10 | 5000 days | 4% |
| Stoop | 8/10 | 5000 days | 4% |
| Jacob | 9/10 | 5001 days | 4% |
| Maike | 9/10 | 5002 days | 4% |
| Kauzta | 10/10 | 5002 days | 4% |
| Laura Malins | 8/10 | 5004 days | 4% |
| K & J Overton | 8/10 | 5008 days | 4% |
| Betten | 10/10 | 5013 days | 4% |
| taniadeanryanbrittany | 8/10 | 5014 days | 4% |
| Nicolas | 7/10 | 5015 days | 4% |
| Lenore Dejong | 9/10 | 5016 days | 4% |
| Manu & Gabi | 10/10 | 5019 days | 4% |
| Laura Hayes | 10/10 | 5029 days | 4% |
| Maite Severins | 7/10 | 5033 days | 4% |
| Helen Keighley | 10/10 | 5034 days | 4% |
| Ryan Tull | 10/10 | 5037 days | 4% |
| Calvin Parsons | 8/10 | 5042 days | 4% |
| Christian Foerster | 7/10 | 5042 days | 4% |
| Kristie | 10/10 | 5065 days | 4% |
| elpo | 9/10 | 5287 days | 4% |
| Baumgarten | 8/10 | 5315 days | 4% |
| Stephen M | 7/10 | 5360 days | 4% |
| Corine van Been | 8/10 | 5361 days | 4% |
| s_butler | 10/10 | 5367 days | 4% |
| Benedict Fluthman | 6/10 | 5369 days | 3% |
| Peter Schmidt | 5/10 | 5379 days | 3% |
| Nicky and Andy Prescott | 10/10 | 5381 days | 4% |
| Jackie | 9/10 | 5398 days | 4% |
| Vincente Garrido | 8/10 | 5402 days | 4% |
| Keith Wilde | 10/10 | 5402 days | 4% |
| Ian E | 8/10 | 5403 days | 4% |
| kate | 5/10 | 5404 days | 3% |
| Rob | 8/10 | 5405 days | 4% |
| emily walters | 10/10 | 5407 days | 4% |
| Peter Ortner | 9/10 | 5416 days | 4% |
| Nigel Armstrong | 10/10 | 5418 days | 4% |
| Grainne Ahern | 4/10 | 5438 days | 3% |
| Chidlebyte | 10/10 | 5438 days | 4% |
| gabei | 7/10 | 5453 days | 4% |
| mariak | 7/10 | 5455 days | 4% |
| marijad | 10/10 | 5457 days | 4% |
| Paul Nugent | 8/10 | 5469 days | 4% |
| Misha | 10/10 | 5469 days | 4% |
| Alan Riley | 8/10 | 5481 days | 4% |
| Ann Riley | 8/10 | 5481 days | 4% |
| Eimear Doyle | 9/10 | 5481 days | 4% |
| MV Vroenhoven | 10/10 | 5484 days | 4% |
| Sara Reekmans | 9/10 | 5492 days | 4% |
| Emily and Alex | 9/10 | 5496 days | 4% |
| neilchelt | 10/10 | 5499 days | 4% |
| jank | 10/10 | 5560 days | 4% |
| alanvn | 9/10 | 5582 days | 4% |
| bogaard | 10/10 | 5595 days | 4% |
| lorah | 10/10 | 5603 days | 4% |
| joevw | 9/10 | 5668 days | 4% |
| OliverG1 | 8/10 | 5701 days | 4% |
| Tim_P | 6/10 | 5710 days | 3% |
| Nathalie | 8/10 | 5710 days | 4% |
| Sofie | 9/10 | 5713 days | 4% |
| ElissaH | 10/10 | 5716 days | 4% |
| KjellR | 9/10 | 5716 days | 4% |
| BonnieH | 9/10 | 5716 days | 4% |
| CharityW | 8/10 | 5716 days | 4% |
| Paul | 10/10 | 5717 days | 4% |
| eskim1018 | 9/10 | 5725 days | 4% |
| ChrisD | 10/10 | 5729 days | 4% |
| Christian Moll | 9/10 | 5729 days | 4% |
| david | 10/10 | 5730 days | 4% |
| Doll | 10/10 | 5737 days | 4% |
| A | 10/10 | 5745 days | 4% |
| Tolsten | 10/10 | 5745 days | 4% |
| GaryW | 8/10 | 5748 days | 4% |
| ElizabethF | 9/10 | 5748 days | 4% |
| Claudia | 4/10 | 5750 days | 3% |
| Jason | 7/10 | 5753 days | 4% |
| John | 8/10 | 5755 days | 4% |
| Hans | 8/10 | 5762 days | 4% |
| Carly | 7/10 | 5764 days | 4% |
| Jeffrey C | 10/10 | 5772 days | 4% |
| SueB | 10/10 | 5772 days | 4% |
| Dalit | 10/10 | 5780 days | 4% |
| Jon | 10/10 | 5785 days | 4% |
| Kathrin | 9/10 | 5787 days | 4% |
| Oliver | 8/10 | 5788 days | 4% |
| Patrick | 8/10 | 5790 days | 4% |
| Andrew | 8/10 | 5790 days | 4% |
| Graham | 6/10 | 5799 days | 3% |
| Maria | 10/10 | 5826 days | 4% |
| Jordi | 6/10 | 5834 days | 3% |
| nicole | 10/10 | 5836 days | 4% |
| Rowan | 9/10 | 5859 days | 4% |
| abby | 9/10 | 5870 days | 4% |
| Andrew | 9/10 | 5881 days | 4% |
| Anna | 10/10 | 5911 days | 4% |
| Atsuko | 8/10 | 5920 days | 4% |
| Trina | 10/10 | 5938 days | 4% |
| Terri Scott | 10/10 | 5949 days | 4% |
| Brian | 10/10 | 5962 days | 4% |
| Wolfgang | 8/10 | 5986 days | 4% |
| Gorka Rojas | 9/10 | 5986 days | 4% |
| Ashlee Roberts | 10/10 | 6010 days | 4% |
| Corin Kraft | 10/10 | 6055 days | 4% |
| Anke | 9/10 | 6063 days | 4% |
| Olga | 7/10 | 6079 days | 4% |
| Ben | 8/10 | 6084 days | 4% |
| Chris | 7/10 | 6090 days | 4% |
| Elizabeth Woodruff | 5/10 | 6093 days | 3% |
| Sandra Verbaarschot | 10/10 | 6093 days | 4% |
| Denise | 10/10 | 6096 days | 4% |
| Lisa Jones | 10/10 | 6100 days | 4% |
| Richard Anthony | 8/10 | 6100 days | 4% |
| Renske Tehurne | 8/10 | 6104 days | 4% |
| Robert | 10/10 | 6105 days | 4% |
| Elise | 10/10 | 6105 days | 4% |
| Fung | 10/10 | 6105 days | 4% |
| Omri Hasson | 9/10 | 6110 days | 4% |
| Aharon | 10/10 | 6111 days | 4% |
| Sue | 8/10 | 6117 days | 4% |
| Ondrej Kacena | 8/10 | 6124 days | 4% |
| Laurie | 8/10 | 6124 days | 4% |
| Eric P | 10/10 | 6132 days | 4% |
| Alex | 8/10 | 6141 days | 4% |
| Natalie | 10/10 | 6153 days | 4% |
| Paul Cowie | 7/10 | 6188 days | 4% |
| Ard | 8/10 | 6188 days | 4% |
| Gabriel Faber | 8/10 | 6188 days | 4% |
| Michael | 8/10 | 6198 days | 4% |
| purplekat99 | 8/10 | 6200 days | 4% |
| Wendy Williams | 9/10 | 6205 days | 4% |
| MrsWesley | 6/10 | 6440 days | 3% |
| John | 7/10 | 6446 days | 4% |
| Heike | 9/10 | 6453 days | 4% |
| Colin Sinclair | 10/10 | 6454 days | 4% |
| Angela Shearer | 8/10 | 6454 days | 4% |
| Loic | 9/10 | 6478 days | 4% |
| Reggie | 9/10 | 6479 days | 4% |
| FluerBlum | 8/10 | 6491 days | 4% |
| Hermann | 10/10 | 6492 days | 4% |
| Franz-Josef | 9/10 | 6495 days | 4% |
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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 43 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
1.88% 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
87%
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.