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
88.83%
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 | 1236 days | 100% |
| Mona Uttendorf | 10/10 | 2916 days | 12% |
| Sebastian Braun | 10/10 | 2921 days | 11% |
| Tanya Davies | 10/10 | 2970 days | 11% |
| Danielle Stam | 7/10 | 3224 days | 8% |
| Carmen | 10/10 | 3540 days | 7% |
| Claudia Hillebrand | 4/10 | 3888 days | 3% |
| Max Backelandt | 9/10 | 3894 days | 4% |
| Marie Toulemonde | 10/10 | 3894 days | 4% |
| Mark | 7/10 | 3897 days | 4% |
| Daniel Robledo | 8/10 | 3916 days | 4% |
| Maria Camen Santos Lopez | 9/10 | 3916 days | 4% |
| Mara | 9/10 | 3917 days | 4% |
| Andrea Morello | 7/10 | 3917 days | 3% |
| Maria = Moller Hansen | 9/10 | 3926 days | 4% |
| Simon Tanguy | 9/10 | 3934 days | 3% |
| Gassat | 4/10 | 3937 days | 2% |
| Lena Jensen | 9/10 | 3950 days | 3% |
| Jesper Andersen | 9/10 | 3950 days | 3% |
| Claire Lieval | 9/10 | 3962 days | 3% |
| Pioter Jurkowski | 7/10 | 3974 days | 3% |
| Jesse Farrell | 8/10 | 3983 days | 3% |
| Philipp Haass | 6/10 | 3983 days | 3% |
| Chantal | 10/10 | 3987 days | 3% |
| Ken S | 10/10 | 4005 days | 3% |
| Ron Stenhouse | 6/10 | 4249 days | 1% |
| Elizabeth Stenhouse | 8/10 | 4249 days | 1% |
| Andreas Jarvel | 9/10 | 4263 days | 1% |
| Pete Wilson | 4/10 | 4266 days | 1% |
| Marcel | 7/10 | 4273 days | 1% |
| Maria | 8/10 | 4273 days | 1% |
| Clare Cannon | 8/10 | 4290 days | 1% |
| Sara Omary | 9/10 | 4290 days | 1% |
| S M | 10/10 | 4308 days | 1% |
| Alison Langley | 8/10 | 4352 days | 0% |
| Liam Day | 9/10 | 4356 days | 0% |
| Martyn Kool | 8/10 | 4356 days | 0% |
| Michael Kretzschmar | 9/10 | 4356 days | 0% |
| Marieke | 9/10 | 4356 days | 0% |
| Kevin Desjandino | 10/10 | 4357 days | 0% |
| Sharon Yates | 10/10 | 4358 days | 0% |
| Frans Derks | 8/10 | 4363 days | 0% |
| Alexandra van den Brack | 8/10 | 4367 days | 0% |
| Frank and Suzanne | 8/10 | 4370 days | 0% |
| Erik Funk | 8/10 | 4377 days | 0% |
| tanyap | 4/10 | 4400 days | 3% |
| Rob Klauer | 8/10 | 4633 days | 4% |
| Petr Stepanek | 7/10 | 4637 days | 4% |
| Alan Brady | 9/10 | 4642 days | 4% |
| sidcupjon | 9/10 | 4645 days | 4% |
| Robert & Bridget Holden | 8/10 | 4654 days | 4% |
| Vincent & Lian | 9/10 | 4655 days | 4% |
| Stam | 9/10 | 4656 days | 4% |
| Tim & Judith | 8/10 | 4657 days | 4% |
| Rob Gill | 10/10 | 4658 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4661 days | 4% |
| R Seiferling | 10/10 | 4666 days | 4% |
| Ursi Meier | 9/10 | 4668 days | 4% |
| Thomas Krause | 8/10 | 4668 days | 4% |
| Hugo ten Brink | 8/10 | 4672 days | 4% |
| kiwifrenchy | 10/10 | 4674 days | 4% |
| Katja Klein | 9/10 | 4719 days | 4% |
| Judith | 8/10 | 4725 days | 4% |
| damaca | 10/10 | 4766 days | 4% |
| KarenW | 10/10 | 4827 days | 4% |
| neilqecosse | 9/10 | 4827 days | 4% |
| MeganJane_85 | 1/10 | 4950 days | 2% |
| Marcus | 9/10 | 4970 days | 4% |
| Lisa Milton | 10/10 | 4973 days | 4% |
| Ken Talan | 10/10 | 4976 days | 4% |
| Alita Smith | 9/10 | 4983 days | 4% |
| Leroy Dimitri | 10/10 | 4993 days | 4% |
| Mr & Mrs Palmer | 9/10 | 4997 days | 4% |
| Sayaka | 10/10 | 4997 days | 4% |
| Stoop | 8/10 | 4997 days | 4% |
| Jacob | 9/10 | 4998 days | 4% |
| Maike | 9/10 | 4999 days | 4% |
| Kauzta | 10/10 | 4999 days | 4% |
| Laura Malins | 8/10 | 5001 days | 4% |
| K & J Overton | 8/10 | 5005 days | 4% |
| Betten | 10/10 | 5010 days | 4% |
| taniadeanryanbrittany | 8/10 | 5011 days | 4% |
| Nicolas | 7/10 | 5012 days | 4% |
| Lenore Dejong | 9/10 | 5013 days | 4% |
| Manu & Gabi | 10/10 | 5016 days | 4% |
| Laura Hayes | 10/10 | 5026 days | 4% |
| Maite Severins | 7/10 | 5030 days | 4% |
| Helen Keighley | 10/10 | 5031 days | 4% |
| Ryan Tull | 10/10 | 5034 days | 4% |
| Calvin Parsons | 8/10 | 5039 days | 4% |
| Christian Foerster | 7/10 | 5039 days | 4% |
| Kristie | 10/10 | 5062 days | 4% |
| elpo | 9/10 | 5284 days | 4% |
| Baumgarten | 8/10 | 5312 days | 4% |
| Stephen M | 7/10 | 5357 days | 4% |
| Corine van Been | 8/10 | 5358 days | 4% |
| s_butler | 10/10 | 5364 days | 4% |
| Benedict Fluthman | 6/10 | 5366 days | 3% |
| Peter Schmidt | 5/10 | 5376 days | 3% |
| Nicky and Andy Prescott | 10/10 | 5378 days | 4% |
| Jackie | 9/10 | 5395 days | 4% |
| Vincente Garrido | 8/10 | 5399 days | 4% |
| Keith Wilde | 10/10 | 5399 days | 4% |
| Ian E | 8/10 | 5400 days | 4% |
| kate | 5/10 | 5401 days | 3% |
| Rob | 8/10 | 5402 days | 4% |
| emily walters | 10/10 | 5404 days | 4% |
| Peter Ortner | 9/10 | 5413 days | 4% |
| Nigel Armstrong | 10/10 | 5415 days | 4% |
| Grainne Ahern | 4/10 | 5435 days | 3% |
| Chidlebyte | 10/10 | 5435 days | 4% |
| gabei | 7/10 | 5450 days | 4% |
| mariak | 7/10 | 5452 days | 4% |
| marijad | 10/10 | 5454 days | 4% |
| Paul Nugent | 8/10 | 5466 days | 4% |
| Misha | 10/10 | 5466 days | 4% |
| Alan Riley | 8/10 | 5478 days | 4% |
| Ann Riley | 8/10 | 5478 days | 4% |
| Eimear Doyle | 9/10 | 5478 days | 4% |
| MV Vroenhoven | 10/10 | 5481 days | 4% |
| Sara Reekmans | 9/10 | 5489 days | 4% |
| Emily and Alex | 9/10 | 5493 days | 4% |
| neilchelt | 10/10 | 5496 days | 4% |
| jank | 10/10 | 5557 days | 4% |
| alanvn | 9/10 | 5579 days | 4% |
| bogaard | 10/10 | 5592 days | 4% |
| lorah | 10/10 | 5600 days | 4% |
| joevw | 9/10 | 5665 days | 4% |
| OliverG1 | 8/10 | 5698 days | 4% |
| Tim_P | 6/10 | 5707 days | 3% |
| Nathalie | 8/10 | 5707 days | 4% |
| Sofie | 9/10 | 5710 days | 4% |
| ElissaH | 10/10 | 5712 days | 4% |
| KjellR | 9/10 | 5712 days | 4% |
| BonnieH | 9/10 | 5712 days | 4% |
| CharityW | 8/10 | 5712 days | 4% |
| Paul | 10/10 | 5714 days | 4% |
| eskim1018 | 9/10 | 5722 days | 4% |
| ChrisD | 10/10 | 5726 days | 4% |
| Christian Moll | 9/10 | 5726 days | 4% |
| david | 10/10 | 5726 days | 4% |
| Doll | 10/10 | 5734 days | 4% |
| A | 10/10 | 5742 days | 4% |
| Tolsten | 10/10 | 5742 days | 4% |
| GaryW | 8/10 | 5745 days | 4% |
| ElizabethF | 9/10 | 5745 days | 4% |
| Claudia | 4/10 | 5747 days | 3% |
| Jason | 7/10 | 5749 days | 4% |
| John | 8/10 | 5752 days | 4% |
| Hans | 8/10 | 5759 days | 4% |
| Carly | 7/10 | 5761 days | 4% |
| Jeffrey C | 10/10 | 5769 days | 4% |
| SueB | 10/10 | 5769 days | 4% |
| Dalit | 10/10 | 5776 days | 4% |
| Jon | 10/10 | 5781 days | 4% |
| Kathrin | 9/10 | 5783 days | 4% |
| Oliver | 8/10 | 5785 days | 4% |
| Patrick | 8/10 | 5787 days | 4% |
| Andrew | 8/10 | 5787 days | 4% |
| Graham | 6/10 | 5796 days | 3% |
| Maria | 10/10 | 5823 days | 4% |
| Jordi | 6/10 | 5831 days | 3% |
| nicole | 10/10 | 5833 days | 4% |
| Rowan | 9/10 | 5856 days | 4% |
| abby | 9/10 | 5867 days | 4% |
| Andrew | 9/10 | 5877 days | 4% |
| Anna | 10/10 | 5908 days | 4% |
| Atsuko | 8/10 | 5917 days | 4% |
| Trina | 10/10 | 5935 days | 4% |
| Terri Scott | 10/10 | 5946 days | 4% |
| Brian | 10/10 | 5959 days | 4% |
| Wolfgang | 8/10 | 5983 days | 4% |
| Gorka Rojas | 9/10 | 5983 days | 4% |
| Ashlee Roberts | 10/10 | 6007 days | 4% |
| Corin Kraft | 10/10 | 6052 days | 4% |
| Anke | 9/10 | 6060 days | 4% |
| Olga | 7/10 | 6076 days | 4% |
| Ben | 8/10 | 6081 days | 4% |
| Chris | 7/10 | 6087 days | 4% |
| Elizabeth Woodruff | 5/10 | 6090 days | 3% |
| Sandra Verbaarschot | 10/10 | 6090 days | 4% |
| Denise | 10/10 | 6093 days | 4% |
| Lisa Jones | 10/10 | 6097 days | 4% |
| Richard Anthony | 8/10 | 6097 days | 4% |
| Renske Tehurne | 8/10 | 6101 days | 4% |
| Robert | 10/10 | 6102 days | 4% |
| Elise | 10/10 | 6102 days | 4% |
| Fung | 10/10 | 6102 days | 4% |
| Omri Hasson | 9/10 | 6107 days | 4% |
| Aharon | 10/10 | 6108 days | 4% |
| Sue | 8/10 | 6114 days | 4% |
| Ondrej Kacena | 8/10 | 6121 days | 4% |
| Laurie | 8/10 | 6121 days | 4% |
| Eric P | 10/10 | 6129 days | 4% |
| Alex | 8/10 | 6138 days | 4% |
| Natalie | 10/10 | 6150 days | 4% |
| Paul Cowie | 7/10 | 6185 days | 4% |
| Ard | 8/10 | 6185 days | 4% |
| Gabriel Faber | 8/10 | 6185 days | 4% |
| Michael | 8/10 | 6195 days | 4% |
| purplekat99 | 8/10 | 6197 days | 4% |
| Wendy Williams | 9/10 | 6202 days | 4% |
| MrsWesley | 6/10 | 6437 days | 3% |
| John | 7/10 | 6443 days | 4% |
| Heike | 9/10 | 6450 days | 4% |
| Colin Sinclair | 10/10 | 6451 days | 4% |
| Angela Shearer | 8/10 | 6451 days | 4% |
| Loic | 9/10 | 6475 days | 4% |
| Reggie | 9/10 | 6476 days | 4% |
| FluerBlum | 8/10 | 6488 days | 4% |
| Hermann | 10/10 | 6489 days | 4% |
| Franz-Josef | 9/10 | 6492 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
-4.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 44 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
1.86% 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.