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
88.67%
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 | 1267 days | 100% |
| Mona Uttendorf | 10/10 | 2947 days | 12% |
| Sebastian Braun | 10/10 | 2952 days | 12% |
| Tanya Davies | 10/10 | 3000 days | 12% |
| Danielle Stam | 7/10 | 3255 days | 9% |
| Carmen | 10/10 | 3571 days | 7% |
| Claudia Hillebrand | 4/10 | 3919 days | 2% |
| Max Backelandt | 9/10 | 3925 days | 4% |
| Marie Toulemonde | 10/10 | 3925 days | 4% |
| Mark | 7/10 | 3928 days | 3% |
| Daniel Robledo | 8/10 | 3947 days | 3% |
| Maria Camen Santos Lopez | 9/10 | 3947 days | 3% |
| Mara | 9/10 | 3948 days | 3% |
| Andrea Morello | 7/10 | 3948 days | 3% |
| Maria = Moller Hansen | 9/10 | 3957 days | 3% |
| Simon Tanguy | 9/10 | 3965 days | 3% |
| Gassat | 4/10 | 3968 days | 2% |
| Lena Jensen | 9/10 | 3981 days | 3% |
| Jesper Andersen | 9/10 | 3981 days | 3% |
| Claire Lieval | 9/10 | 3993 days | 3% |
| Pioter Jurkowski | 7/10 | 4005 days | 3% |
| Jesse Farrell | 8/10 | 4014 days | 3% |
| Philipp Haass | 6/10 | 4014 days | 2% |
| Chantal | 10/10 | 4018 days | 3% |
| Ken S | 10/10 | 4036 days | 3% |
| Ron Stenhouse | 6/10 | 4280 days | 0% |
| Elizabeth Stenhouse | 8/10 | 4280 days | 0% |
| Andreas Jarvel | 9/10 | 4294 days | 0% |
| Pete Wilson | 4/10 | 4297 days | 0% |
| Marcel | 7/10 | 4304 days | 0% |
| Maria | 8/10 | 4304 days | 0% |
| Clare Cannon | 8/10 | 4321 days | 0% |
| Sara Omary | 9/10 | 4321 days | 0% |
| S M | 10/10 | 4339 days | 0% |
| Alison Langley | 8/10 | 4383 days | 4% |
| Liam Day | 9/10 | 4387 days | 4% |
| Martyn Kool | 8/10 | 4387 days | 4% |
| Michael Kretzschmar | 9/10 | 4387 days | 4% |
| Marieke | 9/10 | 4387 days | 4% |
| Kevin Desjandino | 10/10 | 4388 days | 4% |
| Sharon Yates | 10/10 | 4389 days | 4% |
| Frans Derks | 8/10 | 4394 days | 4% |
| Alexandra van den Brack | 8/10 | 4398 days | 4% |
| Frank and Suzanne | 8/10 | 4401 days | 4% |
| Erik Funk | 8/10 | 4408 days | 4% |
| tanyap | 4/10 | 4431 days | 3% |
| Rob Klauer | 8/10 | 4664 days | 4% |
| Petr Stepanek | 7/10 | 4668 days | 4% |
| Alan Brady | 9/10 | 4673 days | 4% |
| sidcupjon | 9/10 | 4676 days | 4% |
| Robert & Bridget Holden | 8/10 | 4685 days | 4% |
| Vincent & Lian | 9/10 | 4686 days | 4% |
| Stam | 9/10 | 4687 days | 4% |
| Tim & Judith | 8/10 | 4688 days | 4% |
| Rob Gill | 10/10 | 4689 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4692 days | 4% |
| R Seiferling | 10/10 | 4697 days | 4% |
| Ursi Meier | 9/10 | 4699 days | 4% |
| Thomas Krause | 8/10 | 4699 days | 4% |
| Hugo ten Brink | 8/10 | 4703 days | 4% |
| kiwifrenchy | 10/10 | 4705 days | 4% |
| Katja Klein | 9/10 | 4750 days | 4% |
| Judith | 8/10 | 4756 days | 4% |
| damaca | 10/10 | 4797 days | 4% |
| KarenW | 10/10 | 4858 days | 4% |
| neilqecosse | 9/10 | 4858 days | 4% |
| MeganJane_85 | 1/10 | 4981 days | 1% |
| Marcus | 9/10 | 5001 days | 4% |
| Lisa Milton | 10/10 | 5004 days | 4% |
| Ken Talan | 10/10 | 5007 days | 4% |
| Alita Smith | 9/10 | 5014 days | 4% |
| Leroy Dimitri | 10/10 | 5024 days | 4% |
| Mr & Mrs Palmer | 9/10 | 5028 days | 4% |
| Sayaka | 10/10 | 5028 days | 4% |
| Stoop | 8/10 | 5028 days | 4% |
| Jacob | 9/10 | 5029 days | 4% |
| Maike | 9/10 | 5030 days | 4% |
| Kauzta | 10/10 | 5030 days | 4% |
| Laura Malins | 8/10 | 5032 days | 4% |
| K & J Overton | 8/10 | 5036 days | 4% |
| Betten | 10/10 | 5041 days | 4% |
| taniadeanryanbrittany | 8/10 | 5042 days | 4% |
| Nicolas | 7/10 | 5043 days | 4% |
| Lenore Dejong | 9/10 | 5044 days | 4% |
| Manu & Gabi | 10/10 | 5047 days | 4% |
| Laura Hayes | 10/10 | 5057 days | 4% |
| Maite Severins | 7/10 | 5061 days | 4% |
| Helen Keighley | 10/10 | 5062 days | 4% |
| Ryan Tull | 10/10 | 5065 days | 4% |
| Calvin Parsons | 8/10 | 5070 days | 4% |
| Christian Foerster | 7/10 | 5070 days | 4% |
| Kristie | 10/10 | 5093 days | 4% |
| elpo | 9/10 | 5315 days | 4% |
| Baumgarten | 8/10 | 5343 days | 4% |
| Stephen M | 7/10 | 5388 days | 4% |
| Corine van Been | 8/10 | 5389 days | 4% |
| s_butler | 10/10 | 5395 days | 4% |
| Benedict Fluthman | 6/10 | 5397 days | 3% |
| Peter Schmidt | 5/10 | 5407 days | 3% |
| Nicky and Andy Prescott | 10/10 | 5409 days | 4% |
| Jackie | 9/10 | 5426 days | 4% |
| Vincente Garrido | 8/10 | 5430 days | 4% |
| Keith Wilde | 10/10 | 5430 days | 4% |
| Ian E | 8/10 | 5431 days | 4% |
| kate | 5/10 | 5432 days | 3% |
| Rob | 8/10 | 5433 days | 4% |
| emily walters | 10/10 | 5435 days | 4% |
| Peter Ortner | 9/10 | 5444 days | 4% |
| Nigel Armstrong | 10/10 | 5446 days | 4% |
| Grainne Ahern | 4/10 | 5466 days | 3% |
| Chidlebyte | 10/10 | 5466 days | 4% |
| gabei | 7/10 | 5481 days | 4% |
| mariak | 7/10 | 5483 days | 4% |
| marijad | 10/10 | 5485 days | 4% |
| Paul Nugent | 8/10 | 5497 days | 4% |
| Misha | 10/10 | 5497 days | 4% |
| Alan Riley | 8/10 | 5509 days | 4% |
| Ann Riley | 8/10 | 5509 days | 4% |
| Eimear Doyle | 9/10 | 5509 days | 4% |
| MV Vroenhoven | 10/10 | 5512 days | 4% |
| Sara Reekmans | 9/10 | 5520 days | 4% |
| Emily and Alex | 9/10 | 5524 days | 4% |
| neilchelt | 10/10 | 5527 days | 4% |
| jank | 10/10 | 5588 days | 4% |
| alanvn | 9/10 | 5610 days | 4% |
| bogaard | 10/10 | 5623 days | 4% |
| lorah | 10/10 | 5631 days | 4% |
| joevw | 9/10 | 5696 days | 4% |
| OliverG1 | 8/10 | 5729 days | 4% |
| Tim_P | 6/10 | 5738 days | 3% |
| Nathalie | 8/10 | 5738 days | 4% |
| Sofie | 9/10 | 5741 days | 4% |
| ElissaH | 10/10 | 5743 days | 4% |
| KjellR | 9/10 | 5743 days | 4% |
| BonnieH | 9/10 | 5743 days | 4% |
| CharityW | 8/10 | 5743 days | 4% |
| Paul | 10/10 | 5744 days | 4% |
| eskim1018 | 9/10 | 5752 days | 4% |
| ChrisD | 10/10 | 5757 days | 4% |
| Christian Moll | 9/10 | 5757 days | 4% |
| david | 10/10 | 5757 days | 4% |
| Doll | 10/10 | 5764 days | 4% |
| A | 10/10 | 5772 days | 4% |
| Tolsten | 10/10 | 5772 days | 4% |
| GaryW | 8/10 | 5776 days | 4% |
| ElizabethF | 9/10 | 5776 days | 4% |
| Claudia | 4/10 | 5777 days | 3% |
| Jason | 7/10 | 5780 days | 4% |
| John | 8/10 | 5782 days | 4% |
| Hans | 8/10 | 5789 days | 4% |
| Carly | 7/10 | 5791 days | 4% |
| Jeffrey C | 10/10 | 5800 days | 4% |
| SueB | 10/10 | 5800 days | 4% |
| Dalit | 10/10 | 5807 days | 4% |
| Jon | 10/10 | 5812 days | 4% |
| Kathrin | 9/10 | 5814 days | 4% |
| Oliver | 8/10 | 5815 days | 4% |
| Patrick | 8/10 | 5817 days | 4% |
| Andrew | 8/10 | 5817 days | 4% |
| Graham | 6/10 | 5826 days | 3% |
| Maria | 10/10 | 5853 days | 4% |
| Jordi | 6/10 | 5861 days | 3% |
| nicole | 10/10 | 5863 days | 4% |
| Rowan | 9/10 | 5886 days | 4% |
| abby | 9/10 | 5897 days | 4% |
| Andrew | 9/10 | 5908 days | 4% |
| Anna | 10/10 | 5938 days | 4% |
| Atsuko | 8/10 | 5947 days | 4% |
| Trina | 10/10 | 5965 days | 4% |
| Terri Scott | 10/10 | 5976 days | 4% |
| Brian | 10/10 | 5989 days | 4% |
| Wolfgang | 8/10 | 6013 days | 4% |
| Gorka Rojas | 9/10 | 6013 days | 4% |
| Ashlee Roberts | 10/10 | 6038 days | 4% |
| Corin Kraft | 10/10 | 6083 days | 4% |
| Anke | 9/10 | 6091 days | 4% |
| Olga | 7/10 | 6107 days | 4% |
| Ben | 8/10 | 6112 days | 4% |
| Chris | 7/10 | 6118 days | 4% |
| Elizabeth Woodruff | 5/10 | 6121 days | 3% |
| Sandra Verbaarschot | 10/10 | 6121 days | 4% |
| Denise | 10/10 | 6124 days | 4% |
| Lisa Jones | 10/10 | 6128 days | 4% |
| Richard Anthony | 8/10 | 6128 days | 4% |
| Renske Tehurne | 8/10 | 6132 days | 4% |
| Robert | 10/10 | 6133 days | 4% |
| Elise | 10/10 | 6133 days | 4% |
| Fung | 10/10 | 6133 days | 4% |
| Omri Hasson | 9/10 | 6138 days | 4% |
| Aharon | 10/10 | 6139 days | 4% |
| Sue | 8/10 | 6145 days | 4% |
| Ondrej Kacena | 8/10 | 6152 days | 4% |
| Laurie | 8/10 | 6152 days | 4% |
| Eric P | 10/10 | 6160 days | 4% |
| Alex | 8/10 | 6169 days | 4% |
| Natalie | 10/10 | 6181 days | 4% |
| Paul Cowie | 7/10 | 6216 days | 4% |
| Ard | 8/10 | 6216 days | 4% |
| Gabriel Faber | 8/10 | 6216 days | 4% |
| Michael | 8/10 | 6226 days | 4% |
| purplekat99 | 8/10 | 6228 days | 4% |
| Wendy Williams | 9/10 | 6233 days | 4% |
| MrsWesley | 6/10 | 6468 days | 3% |
| John | 7/10 | 6474 days | 4% |
| Heike | 9/10 | 6481 days | 4% |
| Colin Sinclair | 10/10 | 6482 days | 4% |
| Angela Shearer | 8/10 | 6482 days | 4% |
| Loic | 9/10 | 6506 days | 4% |
| Reggie | 9/10 | 6507 days | 4% |
| FluerBlum | 8/10 | 6519 days | 4% |
| Hermann | 10/10 | 6520 days | 4% |
| Franz-Josef | 9/10 | 6523 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
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 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 | -3.98% |
| 198 | -4.00% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
Balancing Adjustment
1.90% 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.