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
88.63%
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 | 1320 days | 100% |
| Mona Uttendorf | 10/10 | 3000 days | 14% |
| Sebastian Braun | 10/10 | 3005 days | 14% |
| Tanya Davies | 10/10 | 3053 days | 13% |
| Danielle Stam | 7/10 | 3308 days | 10% |
| Carmen | 10/10 | 3624 days | 8% |
| Claudia Hillebrand | 4/10 | 3972 days | 3% |
| Max Backelandt | 9/10 | 3978 days | 4% |
| Marie Toulemonde | 10/10 | 3978 days | 4% |
| Mark | 7/10 | 3981 days | 4% |
| Daniel Robledo | 8/10 | 4000 days | 4% |
| Maria Camen Santos Lopez | 9/10 | 4000 days | 4% |
| Mara | 9/10 | 4001 days | 4% |
| Andrea Morello | 7/10 | 4001 days | 3% |
| Maria = Moller Hansen | 9/10 | 4010 days | 4% |
| Simon Tanguy | 9/10 | 4018 days | 4% |
| Gassat | 4/10 | 4021 days | 2% |
| Lena Jensen | 9/10 | 4034 days | 3% |
| Jesper Andersen | 9/10 | 4034 days | 3% |
| Claire Lieval | 9/10 | 4046 days | 3% |
| Pioter Jurkowski | 7/10 | 4058 days | 3% |
| Jesse Farrell | 8/10 | 4067 days | 3% |
| Philipp Haass | 6/10 | 4067 days | 3% |
| Chantal | 10/10 | 4071 days | 3% |
| Ken S | 10/10 | 4089 days | 3% |
| Ron Stenhouse | 6/10 | 4333 days | 0% |
| Elizabeth Stenhouse | 8/10 | 4333 days | 0% |
| Andreas Jarvel | 9/10 | 4347 days | 0% |
| Pete Wilson | 4/10 | 4350 days | 0% |
| Marcel | 7/10 | 4357 days | 0% |
| Maria | 8/10 | 4357 days | 0% |
| Clare Cannon | 8/10 | 4374 days | 0% |
| Sara Omary | 9/10 | 4374 days | 0% |
| S M | 10/10 | 4392 days | 5% |
| Alison Langley | 8/10 | 4436 days | 5% |
| Liam Day | 9/10 | 4440 days | 5% |
| Martyn Kool | 8/10 | 4440 days | 5% |
| Michael Kretzschmar | 9/10 | 4440 days | 5% |
| Marieke | 9/10 | 4440 days | 5% |
| Kevin Desjandino | 10/10 | 4441 days | 5% |
| Sharon Yates | 10/10 | 4442 days | 5% |
| Frans Derks | 8/10 | 4447 days | 5% |
| Alexandra van den Brack | 8/10 | 4451 days | 5% |
| Frank and Suzanne | 8/10 | 4454 days | 5% |
| Erik Funk | 8/10 | 4461 days | 5% |
| tanyap | 4/10 | 4484 days | 3% |
| Rob Klauer | 8/10 | 4717 days | 5% |
| Petr Stepanek | 7/10 | 4721 days | 5% |
| Alan Brady | 9/10 | 4726 days | 5% |
| sidcupjon | 9/10 | 4729 days | 5% |
| Robert & Bridget Holden | 8/10 | 4738 days | 5% |
| Vincent & Lian | 9/10 | 4739 days | 5% |
| Stam | 9/10 | 4740 days | 5% |
| Tim & Judith | 8/10 | 4741 days | 5% |
| Rob Gill | 10/10 | 4742 days | 5% |
| Cindy & Glen Kerunsky | 10/10 | 4745 days | 5% |
| R Seiferling | 10/10 | 4750 days | 5% |
| Ursi Meier | 9/10 | 4752 days | 5% |
| Thomas Krause | 8/10 | 4752 days | 5% |
| Hugo ten Brink | 8/10 | 4756 days | 5% |
| kiwifrenchy | 10/10 | 4758 days | 5% |
| Katja Klein | 9/10 | 4803 days | 5% |
| Judith | 8/10 | 4809 days | 5% |
| damaca | 10/10 | 4850 days | 5% |
| KarenW | 10/10 | 4911 days | 5% |
| neilqecosse | 9/10 | 4911 days | 5% |
| MeganJane_85 | 1/10 | 5034 days | 2% |
| Marcus | 9/10 | 5054 days | 5% |
| Lisa Milton | 10/10 | 5057 days | 5% |
| Ken Talan | 10/10 | 5060 days | 5% |
| Alita Smith | 9/10 | 5067 days | 5% |
| Leroy Dimitri | 10/10 | 5077 days | 5% |
| Mr & Mrs Palmer | 9/10 | 5081 days | 5% |
| Sayaka | 10/10 | 5081 days | 5% |
| Stoop | 8/10 | 5081 days | 5% |
| Jacob | 9/10 | 5082 days | 5% |
| Maike | 9/10 | 5083 days | 5% |
| Kauzta | 10/10 | 5083 days | 5% |
| Laura Malins | 8/10 | 5085 days | 5% |
| K & J Overton | 8/10 | 5089 days | 5% |
| Betten | 10/10 | 5094 days | 5% |
| taniadeanryanbrittany | 8/10 | 5095 days | 5% |
| Nicolas | 7/10 | 5096 days | 5% |
| Lenore Dejong | 9/10 | 5097 days | 5% |
| Manu & Gabi | 10/10 | 5100 days | 5% |
| Laura Hayes | 10/10 | 5110 days | 5% |
| Maite Severins | 7/10 | 5114 days | 5% |
| Helen Keighley | 10/10 | 5115 days | 5% |
| Ryan Tull | 10/10 | 5118 days | 5% |
| Calvin Parsons | 8/10 | 5123 days | 5% |
| Christian Foerster | 7/10 | 5123 days | 5% |
| Kristie | 10/10 | 5146 days | 5% |
| elpo | 9/10 | 5368 days | 5% |
| Baumgarten | 8/10 | 5396 days | 5% |
| Stephen M | 7/10 | 5441 days | 5% |
| Corine van Been | 8/10 | 5442 days | 5% |
| s_butler | 10/10 | 5448 days | 5% |
| Benedict Fluthman | 6/10 | 5450 days | 4% |
| Peter Schmidt | 5/10 | 5460 days | 4% |
| Nicky and Andy Prescott | 10/10 | 5462 days | 5% |
| Jackie | 9/10 | 5479 days | 5% |
| Vincente Garrido | 8/10 | 5483 days | 5% |
| Keith Wilde | 10/10 | 5483 days | 5% |
| Ian E | 8/10 | 5484 days | 5% |
| kate | 5/10 | 5485 days | 4% |
| Rob | 8/10 | 5486 days | 5% |
| emily walters | 10/10 | 5488 days | 5% |
| Peter Ortner | 9/10 | 5497 days | 5% |
| Nigel Armstrong | 10/10 | 5499 days | 5% |
| Grainne Ahern | 4/10 | 5519 days | 3% |
| Chidlebyte | 10/10 | 5519 days | 5% |
| gabei | 7/10 | 5534 days | 5% |
| mariak | 7/10 | 5536 days | 5% |
| marijad | 10/10 | 5538 days | 5% |
| Paul Nugent | 8/10 | 5550 days | 5% |
| Misha | 10/10 | 5550 days | 5% |
| Alan Riley | 8/10 | 5562 days | 5% |
| Ann Riley | 8/10 | 5562 days | 5% |
| Eimear Doyle | 9/10 | 5562 days | 5% |
| MV Vroenhoven | 10/10 | 5565 days | 5% |
| Sara Reekmans | 9/10 | 5573 days | 5% |
| Emily and Alex | 9/10 | 5577 days | 5% |
| neilchelt | 10/10 | 5580 days | 5% |
| jank | 10/10 | 5641 days | 5% |
| alanvn | 9/10 | 5663 days | 5% |
| bogaard | 10/10 | 5676 days | 5% |
| lorah | 10/10 | 5684 days | 5% |
| joevw | 9/10 | 5749 days | 5% |
| OliverG1 | 8/10 | 5782 days | 5% |
| Tim_P | 6/10 | 5791 days | 4% |
| Nathalie | 8/10 | 5791 days | 5% |
| Sofie | 9/10 | 5794 days | 5% |
| ElissaH | 10/10 | 5796 days | 5% |
| KjellR | 9/10 | 5796 days | 5% |
| BonnieH | 9/10 | 5796 days | 5% |
| CharityW | 8/10 | 5796 days | 5% |
| Paul | 10/10 | 5797 days | 5% |
| eskim1018 | 9/10 | 5805 days | 5% |
| ChrisD | 10/10 | 5810 days | 5% |
| Christian Moll | 9/10 | 5810 days | 5% |
| david | 10/10 | 5810 days | 5% |
| Doll | 10/10 | 5817 days | 5% |
| A | 10/10 | 5825 days | 5% |
| Tolsten | 10/10 | 5825 days | 5% |
| GaryW | 8/10 | 5829 days | 5% |
| ElizabethF | 9/10 | 5829 days | 5% |
| Claudia | 4/10 | 5830 days | 3% |
| Jason | 7/10 | 5833 days | 5% |
| John | 8/10 | 5835 days | 5% |
| Hans | 8/10 | 5842 days | 5% |
| Carly | 7/10 | 5844 days | 5% |
| Jeffrey C | 10/10 | 5853 days | 5% |
| SueB | 10/10 | 5853 days | 5% |
| Dalit | 10/10 | 5860 days | 5% |
| Jon | 10/10 | 5865 days | 5% |
| Kathrin | 9/10 | 5867 days | 5% |
| Oliver | 8/10 | 5868 days | 5% |
| Patrick | 8/10 | 5870 days | 5% |
| Andrew | 8/10 | 5870 days | 5% |
| Graham | 6/10 | 5879 days | 4% |
| Maria | 10/10 | 5906 days | 5% |
| Jordi | 6/10 | 5914 days | 4% |
| nicole | 10/10 | 5916 days | 5% |
| Rowan | 9/10 | 5939 days | 5% |
| abby | 9/10 | 5950 days | 5% |
| Andrew | 9/10 | 5961 days | 5% |
| Anna | 10/10 | 5991 days | 5% |
| Atsuko | 8/10 | 6000 days | 5% |
| Trina | 10/10 | 6018 days | 5% |
| Terri Scott | 10/10 | 6029 days | 5% |
| Brian | 10/10 | 6042 days | 5% |
| Wolfgang | 8/10 | 6066 days | 5% |
| Gorka Rojas | 9/10 | 6066 days | 5% |
| Ashlee Roberts | 10/10 | 6091 days | 5% |
| Corin Kraft | 10/10 | 6136 days | 5% |
| Anke | 9/10 | 6144 days | 5% |
| Olga | 7/10 | 6160 days | 5% |
| Ben | 8/10 | 6165 days | 5% |
| Chris | 7/10 | 6171 days | 5% |
| Elizabeth Woodruff | 5/10 | 6174 days | 4% |
| Sandra Verbaarschot | 10/10 | 6174 days | 5% |
| Denise | 10/10 | 6177 days | 5% |
| Lisa Jones | 10/10 | 6181 days | 5% |
| Richard Anthony | 8/10 | 6181 days | 5% |
| Renske Tehurne | 8/10 | 6185 days | 5% |
| Robert | 10/10 | 6186 days | 5% |
| Elise | 10/10 | 6186 days | 5% |
| Fung | 10/10 | 6186 days | 5% |
| Omri Hasson | 9/10 | 6191 days | 5% |
| Aharon | 10/10 | 6192 days | 5% |
| Sue | 8/10 | 6198 days | 5% |
| Ondrej Kacena | 8/10 | 6205 days | 5% |
| Laurie | 8/10 | 6205 days | 5% |
| Eric P | 10/10 | 6213 days | 5% |
| Alex | 8/10 | 6222 days | 5% |
| Natalie | 10/10 | 6234 days | 5% |
| Paul Cowie | 7/10 | 6269 days | 5% |
| Ard | 8/10 | 6269 days | 5% |
| Gabriel Faber | 8/10 | 6269 days | 5% |
| Michael | 8/10 | 6279 days | 5% |
| purplekat99 | 8/10 | 6281 days | 5% |
| Wendy Williams | 9/10 | 6286 days | 5% |
| MrsWesley | 6/10 | 6521 days | 4% |
| John | 7/10 | 6527 days | 5% |
| Heike | 9/10 | 6534 days | 5% |
| Colin Sinclair | 10/10 | 6535 days | 5% |
| Angela Shearer | 8/10 | 6535 days | 5% |
| Loic | 9/10 | 6559 days | 5% |
| Reggie | 9/10 | 6560 days | 5% |
| FluerBlum | 8/10 | 6572 days | 5% |
| Hermann | 10/10 | 6573 days | 5% |
| Franz-Josef | 9/10 | 6576 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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 51 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 | -4.09% |
| 198 | -4.11% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.18% |
| 202 | -4.20% |
| 203 | -4.22% |
| … | … |
Balancing Adjustment
1.93% 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.