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 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
88.61%
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 | 1301 days | 100% |
| Mona Uttendorf | 10/10 | 2981 days | 13% |
| Sebastian Braun | 10/10 | 2986 days | 13% |
| Tanya Davies | 10/10 | 3035 days | 13% |
| Danielle Stam | 7/10 | 3289 days | 10% |
| Carmen | 10/10 | 3605 days | 7% |
| Claudia Hillebrand | 4/10 | 3953 days | 3% |
| Max Backelandt | 9/10 | 3959 days | 4% |
| Marie Toulemonde | 10/10 | 3959 days | 4% |
| Mark | 7/10 | 3962 days | 4% |
| Daniel Robledo | 8/10 | 3981 days | 4% |
| Maria Camen Santos Lopez | 9/10 | 3981 days | 4% |
| Mara | 9/10 | 3982 days | 4% |
| Andrea Morello | 7/10 | 3982 days | 3% |
| Maria = Moller Hansen | 9/10 | 3991 days | 4% |
| Simon Tanguy | 9/10 | 3999 days | 4% |
| Gassat | 4/10 | 4002 days | 2% |
| Lena Jensen | 9/10 | 4015 days | 3% |
| Jesper Andersen | 9/10 | 4015 days | 3% |
| Claire Lieval | 9/10 | 4027 days | 3% |
| Pioter Jurkowski | 7/10 | 4039 days | 3% |
| Jesse Farrell | 8/10 | 4048 days | 3% |
| Philipp Haass | 6/10 | 4048 days | 3% |
| Chantal | 10/10 | 4052 days | 3% |
| Ken S | 10/10 | 4070 days | 3% |
| Ron Stenhouse | 6/10 | 4314 days | 0% |
| Elizabeth Stenhouse | 8/10 | 4314 days | 1% |
| Andreas Jarvel | 9/10 | 4328 days | 0% |
| Pete Wilson | 4/10 | 4331 days | 0% |
| Marcel | 7/10 | 4338 days | 0% |
| Maria | 8/10 | 4338 days | 0% |
| Clare Cannon | 8/10 | 4355 days | 0% |
| Sara Omary | 9/10 | 4355 days | 0% |
| S M | 10/10 | 4373 days | 0% |
| Alison Langley | 8/10 | 4417 days | 5% |
| Liam Day | 9/10 | 4421 days | 5% |
| Martyn Kool | 8/10 | 4421 days | 5% |
| Michael Kretzschmar | 9/10 | 4421 days | 5% |
| Marieke | 9/10 | 4421 days | 5% |
| Kevin Desjandino | 10/10 | 4422 days | 5% |
| Sharon Yates | 10/10 | 4423 days | 5% |
| Frans Derks | 8/10 | 4428 days | 5% |
| Alexandra van den Brack | 8/10 | 4432 days | 5% |
| Frank and Suzanne | 8/10 | 4435 days | 5% |
| Erik Funk | 8/10 | 4442 days | 5% |
| tanyap | 4/10 | 4465 days | 3% |
| Rob Klauer | 8/10 | 4698 days | 5% |
| Petr Stepanek | 7/10 | 4702 days | 4% |
| Alan Brady | 9/10 | 4707 days | 5% |
| sidcupjon | 9/10 | 4710 days | 5% |
| Robert & Bridget Holden | 8/10 | 4719 days | 5% |
| Vincent & Lian | 9/10 | 4720 days | 5% |
| Stam | 9/10 | 4721 days | 5% |
| Tim & Judith | 8/10 | 4722 days | 5% |
| Rob Gill | 10/10 | 4723 days | 5% |
| Cindy & Glen Kerunsky | 10/10 | 4726 days | 5% |
| R Seiferling | 10/10 | 4731 days | 5% |
| Ursi Meier | 9/10 | 4733 days | 5% |
| Thomas Krause | 8/10 | 4733 days | 5% |
| Hugo ten Brink | 8/10 | 4737 days | 5% |
| kiwifrenchy | 10/10 | 4739 days | 5% |
| Katja Klein | 9/10 | 4784 days | 5% |
| Judith | 8/10 | 4790 days | 5% |
| damaca | 10/10 | 4831 days | 5% |
| KarenW | 10/10 | 4892 days | 5% |
| neilqecosse | 9/10 | 4892 days | 5% |
| MeganJane_85 | 1/10 | 5015 days | 2% |
| Marcus | 9/10 | 5035 days | 5% |
| Lisa Milton | 10/10 | 5038 days | 5% |
| Ken Talan | 10/10 | 5041 days | 5% |
| Alita Smith | 9/10 | 5048 days | 5% |
| Leroy Dimitri | 10/10 | 5058 days | 5% |
| Mr & Mrs Palmer | 9/10 | 5062 days | 5% |
| Sayaka | 10/10 | 5062 days | 5% |
| Stoop | 8/10 | 5062 days | 5% |
| Jacob | 9/10 | 5063 days | 5% |
| Maike | 9/10 | 5064 days | 5% |
| Kauzta | 10/10 | 5064 days | 5% |
| Laura Malins | 8/10 | 5066 days | 5% |
| K & J Overton | 8/10 | 5070 days | 5% |
| Betten | 10/10 | 5075 days | 5% |
| taniadeanryanbrittany | 8/10 | 5076 days | 5% |
| Nicolas | 7/10 | 5077 days | 4% |
| Lenore Dejong | 9/10 | 5078 days | 5% |
| Manu & Gabi | 10/10 | 5081 days | 5% |
| Laura Hayes | 10/10 | 5091 days | 5% |
| Maite Severins | 7/10 | 5095 days | 4% |
| Helen Keighley | 10/10 | 5096 days | 5% |
| Ryan Tull | 10/10 | 5099 days | 5% |
| Calvin Parsons | 8/10 | 5104 days | 5% |
| Christian Foerster | 7/10 | 5104 days | 4% |
| Kristie | 10/10 | 5127 days | 5% |
| elpo | 9/10 | 5349 days | 5% |
| Baumgarten | 8/10 | 5377 days | 5% |
| Stephen M | 7/10 | 5422 days | 4% |
| Corine van Been | 8/10 | 5423 days | 5% |
| s_butler | 10/10 | 5429 days | 5% |
| Benedict Fluthman | 6/10 | 5431 days | 4% |
| Peter Schmidt | 5/10 | 5441 days | 4% |
| Nicky and Andy Prescott | 10/10 | 5443 days | 5% |
| Jackie | 9/10 | 5460 days | 5% |
| Vincente Garrido | 8/10 | 5464 days | 5% |
| Keith Wilde | 10/10 | 5464 days | 5% |
| Ian E | 8/10 | 5465 days | 5% |
| kate | 5/10 | 5466 days | 4% |
| Rob | 8/10 | 5467 days | 5% |
| emily walters | 10/10 | 5469 days | 5% |
| Peter Ortner | 9/10 | 5478 days | 5% |
| Nigel Armstrong | 10/10 | 5480 days | 5% |
| Grainne Ahern | 4/10 | 5500 days | 3% |
| Chidlebyte | 10/10 | 5500 days | 5% |
| gabei | 7/10 | 5515 days | 4% |
| mariak | 7/10 | 5517 days | 4% |
| marijad | 10/10 | 5519 days | 5% |
| Paul Nugent | 8/10 | 5531 days | 5% |
| Misha | 10/10 | 5531 days | 5% |
| Alan Riley | 8/10 | 5543 days | 5% |
| Ann Riley | 8/10 | 5543 days | 5% |
| Eimear Doyle | 9/10 | 5543 days | 5% |
| MV Vroenhoven | 10/10 | 5546 days | 5% |
| Sara Reekmans | 9/10 | 5554 days | 5% |
| Emily and Alex | 9/10 | 5558 days | 5% |
| neilchelt | 10/10 | 5561 days | 5% |
| jank | 10/10 | 5622 days | 5% |
| alanvn | 9/10 | 5644 days | 5% |
| bogaard | 10/10 | 5657 days | 5% |
| lorah | 10/10 | 5665 days | 5% |
| joevw | 9/10 | 5730 days | 5% |
| OliverG1 | 8/10 | 5763 days | 5% |
| Tim_P | 6/10 | 5772 days | 4% |
| Nathalie | 8/10 | 5772 days | 5% |
| Sofie | 9/10 | 5775 days | 5% |
| ElissaH | 10/10 | 5777 days | 5% |
| KjellR | 9/10 | 5778 days | 5% |
| BonnieH | 9/10 | 5778 days | 5% |
| CharityW | 8/10 | 5778 days | 5% |
| Paul | 10/10 | 5779 days | 5% |
| eskim1018 | 9/10 | 5787 days | 5% |
| ChrisD | 10/10 | 5791 days | 5% |
| Christian Moll | 9/10 | 5791 days | 5% |
| david | 10/10 | 5792 days | 5% |
| Doll | 10/10 | 5799 days | 5% |
| A | 10/10 | 5807 days | 5% |
| Tolsten | 10/10 | 5807 days | 5% |
| GaryW | 8/10 | 5810 days | 5% |
| ElizabethF | 9/10 | 5810 days | 5% |
| Claudia | 4/10 | 5812 days | 3% |
| Jason | 7/10 | 5815 days | 4% |
| John | 8/10 | 5817 days | 5% |
| Hans | 8/10 | 5824 days | 5% |
| Carly | 7/10 | 5826 days | 4% |
| Jeffrey C | 10/10 | 5834 days | 5% |
| SueB | 10/10 | 5834 days | 5% |
| Dalit | 10/10 | 5841 days | 5% |
| Jon | 10/10 | 5847 days | 5% |
| Kathrin | 9/10 | 5848 days | 5% |
| Oliver | 8/10 | 5850 days | 5% |
| Patrick | 8/10 | 5852 days | 5% |
| Andrew | 8/10 | 5852 days | 5% |
| Graham | 6/10 | 5861 days | 4% |
| Maria | 10/10 | 5888 days | 5% |
| Jordi | 6/10 | 5896 days | 4% |
| nicole | 10/10 | 5898 days | 5% |
| Rowan | 9/10 | 5921 days | 5% |
| abby | 9/10 | 5932 days | 5% |
| Andrew | 9/10 | 5943 days | 5% |
| Anna | 10/10 | 5973 days | 5% |
| Atsuko | 8/10 | 5982 days | 5% |
| Trina | 10/10 | 6000 days | 5% |
| Terri Scott | 10/10 | 6011 days | 5% |
| Brian | 10/10 | 6024 days | 5% |
| Wolfgang | 8/10 | 6048 days | 5% |
| Gorka Rojas | 9/10 | 6048 days | 5% |
| Ashlee Roberts | 10/10 | 6072 days | 5% |
| Corin Kraft | 10/10 | 6117 days | 5% |
| Anke | 9/10 | 6125 days | 5% |
| Olga | 7/10 | 6141 days | 4% |
| Ben | 8/10 | 6146 days | 5% |
| Chris | 7/10 | 6152 days | 4% |
| Elizabeth Woodruff | 5/10 | 6155 days | 4% |
| Sandra Verbaarschot | 10/10 | 6155 days | 5% |
| Denise | 10/10 | 6158 days | 5% |
| Lisa Jones | 10/10 | 6162 days | 5% |
| Richard Anthony | 8/10 | 6162 days | 5% |
| Renske Tehurne | 8/10 | 6166 days | 5% |
| Robert | 10/10 | 6167 days | 5% |
| Elise | 10/10 | 6167 days | 5% |
| Fung | 10/10 | 6167 days | 5% |
| Omri Hasson | 9/10 | 6172 days | 5% |
| Aharon | 10/10 | 6173 days | 5% |
| Sue | 8/10 | 6179 days | 5% |
| Ondrej Kacena | 8/10 | 6186 days | 5% |
| Laurie | 8/10 | 6186 days | 5% |
| Eric P | 10/10 | 6194 days | 5% |
| Alex | 8/10 | 6203 days | 5% |
| Natalie | 10/10 | 6215 days | 5% |
| Paul Cowie | 7/10 | 6250 days | 4% |
| Ard | 8/10 | 6250 days | 5% |
| Gabriel Faber | 8/10 | 6250 days | 5% |
| Michael | 8/10 | 6260 days | 5% |
| purplekat99 | 8/10 | 6262 days | 5% |
| Wendy Williams | 9/10 | 6267 days | 5% |
| MrsWesley | 6/10 | 6502 days | 4% |
| John | 7/10 | 6508 days | 4% |
| Heike | 9/10 | 6515 days | 5% |
| Colin Sinclair | 10/10 | 6516 days | 5% |
| Angela Shearer | 8/10 | 6516 days | 5% |
| Loic | 9/10 | 6540 days | 5% |
| Reggie | 9/10 | 6541 days | 5% |
| FluerBlum | 8/10 | 6553 days | 5% |
| Hermann | 10/10 | 6554 days | 5% |
| Franz-Josef | 9/10 | 6557 days | 5% |
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
-4.11% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 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 | -4.05% |
| 198 | -4.07% |
| 199 | -4.09% |
| 200 | -4.11% |
| 201 | -4.13% |
| 202 | -4.15% |
| 203 | -4.17% |
| … | … |
Balancing Adjustment
1.92% 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
86%
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.