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
87.85%
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 | 1630 days | 100% |
| Mona Uttendorf | 10/10 | 3310 days | 29% |
| Sebastian Braun | 10/10 | 3315 days | 29% |
| Tanya Davies | 10/10 | 3364 days | 28% |
| Danielle Stam | 7/10 | 3618 days | 19% |
| Carmen | 10/10 | 3934 days | 12% |
| Claudia Hillebrand | 4/10 | 4282 days | 2% |
| Max Backelandt | 9/10 | 4288 days | 2% |
| Marie Toulemonde | 10/10 | 4288 days | 2% |
| Mark | 7/10 | 4291 days | 2% |
| Daniel Robledo | 8/10 | 4310 days | 2% |
| Maria Camen Santos Lopez | 9/10 | 4310 days | 2% |
| Mara | 9/10 | 4311 days | 2% |
| Andrea Morello | 7/10 | 4311 days | 2% |
| Maria = Moller Hansen | 9/10 | 4320 days | 2% |
| Simon Tanguy | 9/10 | 4328 days | 1% |
| Gassat | 4/10 | 4331 days | 1% |
| Lena Jensen | 9/10 | 4344 days | 1% |
| Jesper Andersen | 9/10 | 4344 days | 1% |
| Claire Lieval | 9/10 | 4356 days | 1% |
| Pioter Jurkowski | 7/10 | 4368 days | 0% |
| Jesse Farrell | 8/10 | 4377 days | 0% |
| Philipp Haass | 6/10 | 4377 days | 0% |
| Chantal | 10/10 | 4381 days | 14% |
| Ken S | 10/10 | 4399 days | 14% |
| Ron Stenhouse | 6/10 | 4643 days | 12% |
| Elizabeth Stenhouse | 8/10 | 4643 days | 14% |
| Andreas Jarvel | 9/10 | 4657 days | 14% |
| Pete Wilson | 4/10 | 4660 days | 9% |
| Marcel | 7/10 | 4667 days | 13% |
| Maria | 8/10 | 4667 days | 14% |
| Clare Cannon | 8/10 | 4684 days | 14% |
| Sara Omary | 9/10 | 4684 days | 14% |
| S M | 10/10 | 4702 days | 14% |
| Alison Langley | 8/10 | 4746 days | 14% |
| Liam Day | 9/10 | 4750 days | 14% |
| Martyn Kool | 8/10 | 4750 days | 14% |
| Michael Kretzschmar | 9/10 | 4750 days | 14% |
| Marieke | 9/10 | 4750 days | 14% |
| Kevin Desjandino | 10/10 | 4751 days | 14% |
| Sharon Yates | 10/10 | 4752 days | 14% |
| Frans Derks | 8/10 | 4757 days | 14% |
| Alexandra van den Brack | 8/10 | 4761 days | 14% |
| Frank and Suzanne | 8/10 | 4764 days | 14% |
| Erik Funk | 8/10 | 4771 days | 14% |
| tanyap | 4/10 | 4794 days | 9% |
| Rob Klauer | 8/10 | 5027 days | 14% |
| Petr Stepanek | 7/10 | 5031 days | 13% |
| Alan Brady | 9/10 | 5036 days | 14% |
| sidcupjon | 9/10 | 5039 days | 14% |
| Robert & Bridget Holden | 8/10 | 5048 days | 14% |
| Vincent & Lian | 9/10 | 5049 days | 14% |
| Stam | 9/10 | 5050 days | 14% |
| Tim & Judith | 8/10 | 5051 days | 14% |
| Rob Gill | 10/10 | 5052 days | 14% |
| Cindy & Glen Kerunsky | 10/10 | 5055 days | 14% |
| R Seiferling | 10/10 | 5060 days | 14% |
| Ursi Meier | 9/10 | 5062 days | 14% |
| Thomas Krause | 8/10 | 5062 days | 14% |
| Hugo ten Brink | 8/10 | 5066 days | 14% |
| kiwifrenchy | 10/10 | 5068 days | 14% |
| Katja Klein | 9/10 | 5113 days | 14% |
| Judith | 8/10 | 5119 days | 14% |
| damaca | 10/10 | 5160 days | 14% |
| KarenW | 10/10 | 5221 days | 14% |
| neilqecosse | 9/10 | 5221 days | 14% |
| MeganJane_85 | 1/10 | 5344 days | 6% |
| Marcus | 9/10 | 5364 days | 14% |
| Lisa Milton | 10/10 | 5367 days | 14% |
| Ken Talan | 10/10 | 5370 days | 14% |
| Alita Smith | 9/10 | 5377 days | 14% |
| Leroy Dimitri | 10/10 | 5387 days | 14% |
| Mr & Mrs Palmer | 9/10 | 5391 days | 14% |
| Sayaka | 10/10 | 5391 days | 14% |
| Stoop | 8/10 | 5391 days | 14% |
| Jacob | 9/10 | 5392 days | 14% |
| Maike | 9/10 | 5393 days | 14% |
| Kauzta | 10/10 | 5393 days | 14% |
| Laura Malins | 8/10 | 5395 days | 14% |
| K & J Overton | 8/10 | 5399 days | 14% |
| Betten | 10/10 | 5404 days | 14% |
| taniadeanryanbrittany | 8/10 | 5405 days | 14% |
| Nicolas | 7/10 | 5406 days | 13% |
| Lenore Dejong | 9/10 | 5407 days | 14% |
| Manu & Gabi | 10/10 | 5410 days | 14% |
| Laura Hayes | 10/10 | 5420 days | 14% |
| Maite Severins | 7/10 | 5424 days | 13% |
| Helen Keighley | 10/10 | 5425 days | 14% |
| Ryan Tull | 10/10 | 5428 days | 14% |
| Calvin Parsons | 8/10 | 5433 days | 14% |
| Christian Foerster | 7/10 | 5433 days | 13% |
| Kristie | 10/10 | 5456 days | 14% |
| elpo | 9/10 | 5678 days | 14% |
| Baumgarten | 8/10 | 5706 days | 14% |
| Stephen M | 7/10 | 5751 days | 13% |
| Corine van Been | 8/10 | 5752 days | 14% |
| s_butler | 10/10 | 5758 days | 14% |
| Benedict Fluthman | 6/10 | 5760 days | 12% |
| Peter Schmidt | 5/10 | 5770 days | 11% |
| Nicky and Andy Prescott | 10/10 | 5772 days | 14% |
| Jackie | 9/10 | 5789 days | 14% |
| Vincente Garrido | 8/10 | 5793 days | 14% |
| Keith Wilde | 10/10 | 5793 days | 14% |
| Ian E | 8/10 | 5794 days | 14% |
| kate | 5/10 | 5795 days | 11% |
| Rob | 8/10 | 5796 days | 14% |
| emily walters | 10/10 | 5798 days | 14% |
| Peter Ortner | 9/10 | 5807 days | 14% |
| Nigel Armstrong | 10/10 | 5809 days | 14% |
| Grainne Ahern | 4/10 | 5829 days | 9% |
| Chidlebyte | 10/10 | 5829 days | 14% |
| gabei | 7/10 | 5844 days | 13% |
| mariak | 7/10 | 5846 days | 13% |
| marijad | 10/10 | 5848 days | 14% |
| Paul Nugent | 8/10 | 5860 days | 14% |
| Misha | 10/10 | 5860 days | 14% |
| Alan Riley | 8/10 | 5872 days | 14% |
| Ann Riley | 8/10 | 5872 days | 14% |
| Eimear Doyle | 9/10 | 5872 days | 14% |
| MV Vroenhoven | 10/10 | 5875 days | 14% |
| Sara Reekmans | 9/10 | 5883 days | 14% |
| Emily and Alex | 9/10 | 5887 days | 14% |
| neilchelt | 10/10 | 5890 days | 14% |
| jank | 10/10 | 5951 days | 14% |
| alanvn | 9/10 | 5973 days | 14% |
| bogaard | 10/10 | 5986 days | 14% |
| lorah | 10/10 | 5994 days | 14% |
| joevw | 9/10 | 6059 days | 14% |
| OliverG1 | 8/10 | 6092 days | 14% |
| Tim_P | 6/10 | 6101 days | 12% |
| Nathalie | 8/10 | 6101 days | 14% |
| Sofie | 9/10 | 6104 days | 14% |
| ElissaH | 10/10 | 6106 days | 14% |
| KjellR | 9/10 | 6106 days | 14% |
| BonnieH | 9/10 | 6106 days | 14% |
| CharityW | 8/10 | 6106 days | 14% |
| Paul | 10/10 | 6108 days | 14% |
| eskim1018 | 9/10 | 6116 days | 14% |
| ChrisD | 10/10 | 6120 days | 14% |
| Christian Moll | 9/10 | 6120 days | 14% |
| david | 10/10 | 6120 days | 14% |
| Doll | 10/10 | 6128 days | 14% |
| A | 10/10 | 6136 days | 14% |
| Tolsten | 10/10 | 6136 days | 14% |
| GaryW | 8/10 | 6139 days | 14% |
| ElizabethF | 9/10 | 6139 days | 14% |
| Claudia | 4/10 | 6141 days | 9% |
| Jason | 7/10 | 6143 days | 13% |
| John | 8/10 | 6146 days | 14% |
| Hans | 8/10 | 6153 days | 14% |
| Carly | 7/10 | 6155 days | 13% |
| Jeffrey C | 10/10 | 6163 days | 14% |
| SueB | 10/10 | 6163 days | 14% |
| Dalit | 10/10 | 6170 days | 14% |
| Jon | 10/10 | 6175 days | 14% |
| Kathrin | 9/10 | 6177 days | 14% |
| Oliver | 8/10 | 6179 days | 14% |
| Patrick | 8/10 | 6181 days | 14% |
| Andrew | 8/10 | 6181 days | 14% |
| Graham | 6/10 | 6190 days | 12% |
| Maria | 10/10 | 6217 days | 14% |
| Jordi | 6/10 | 6225 days | 12% |
| nicole | 10/10 | 6227 days | 14% |
| Rowan | 9/10 | 6250 days | 14% |
| abby | 9/10 | 6261 days | 14% |
| Andrew | 9/10 | 6271 days | 14% |
| Anna | 10/10 | 6302 days | 14% |
| Atsuko | 8/10 | 6311 days | 14% |
| Trina | 10/10 | 6329 days | 14% |
| Terri Scott | 10/10 | 6340 days | 14% |
| Brian | 10/10 | 6353 days | 14% |
| Wolfgang | 8/10 | 6377 days | 14% |
| Gorka Rojas | 9/10 | 6377 days | 14% |
| Ashlee Roberts | 10/10 | 6401 days | 14% |
| Corin Kraft | 10/10 | 6446 days | 14% |
| Anke | 9/10 | 6454 days | 14% |
| Olga | 7/10 | 6470 days | 13% |
| Ben | 8/10 | 6475 days | 14% |
| Chris | 7/10 | 6481 days | 13% |
| Elizabeth Woodruff | 5/10 | 6484 days | 11% |
| Sandra Verbaarschot | 10/10 | 6484 days | 14% |
| Denise | 10/10 | 6487 days | 14% |
| Lisa Jones | 10/10 | 6491 days | 14% |
| Richard Anthony | 8/10 | 6491 days | 14% |
| Renske Tehurne | 8/10 | 6495 days | 14% |
| Robert | 10/10 | 6496 days | 14% |
| Elise | 10/10 | 6496 days | 14% |
| Fung | 10/10 | 6496 days | 14% |
| Omri Hasson | 9/10 | 6501 days | 14% |
| Aharon | 10/10 | 6502 days | 14% |
| Sue | 8/10 | 6508 days | 14% |
| Ondrej Kacena | 8/10 | 6515 days | 14% |
| Laurie | 8/10 | 6515 days | 14% |
| Eric P | 10/10 | 6523 days | 14% |
| Alex | 8/10 | 6532 days | 14% |
| Natalie | 10/10 | 6544 days | 14% |
| Paul Cowie | 7/10 | 6579 days | 13% |
| Ard | 8/10 | 6579 days | 14% |
| Gabriel Faber | 8/10 | 6579 days | 14% |
| Michael | 8/10 | 6589 days | 14% |
| purplekat99 | 8/10 | 6591 days | 14% |
| Wendy Williams | 9/10 | 6596 days | 14% |
| MrsWesley | 6/10 | 6831 days | 12% |
| John | 7/10 | 6837 days | 13% |
| Heike | 9/10 | 6844 days | 14% |
| Colin Sinclair | 10/10 | 6845 days | 14% |
| Angela Shearer | 8/10 | 6845 days | 14% |
| Loic | 9/10 | 6869 days | 14% |
| Reggie | 9/10 | 6870 days | 14% |
| FluerBlum | 8/10 | 6882 days | 14% |
| Hermann | 10/10 | 6883 days | 14% |
| Franz-Josef | 9/10 | 6886 days | 14% |
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 42 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
2.07% 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.