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
87.79%
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 | 1627 days | 100% |
| Mona Uttendorf | 10/10 | 3307 days | 29% |
| Sebastian Braun | 10/10 | 3312 days | 29% |
| Tanya Davies | 10/10 | 3361 days | 28% |
| Danielle Stam | 7/10 | 3615 days | 19% |
| Carmen | 10/10 | 3931 days | 12% |
| Claudia Hillebrand | 4/10 | 4279 days | 2% |
| Max Backelandt | 9/10 | 4285 days | 2% |
| Marie Toulemonde | 10/10 | 4285 days | 3% |
| Mark | 7/10 | 4288 days | 2% |
| Daniel Robledo | 8/10 | 4307 days | 2% |
| Maria Camen Santos Lopez | 9/10 | 4307 days | 2% |
| Mara | 9/10 | 4308 days | 2% |
| Andrea Morello | 7/10 | 4308 days | 2% |
| Maria = Moller Hansen | 9/10 | 4317 days | 2% |
| Simon Tanguy | 9/10 | 4325 days | 1% |
| Gassat | 4/10 | 4328 days | 1% |
| Lena Jensen | 9/10 | 4341 days | 1% |
| Jesper Andersen | 9/10 | 4341 days | 1% |
| Claire Lieval | 9/10 | 4353 days | 1% |
| Pioter Jurkowski | 7/10 | 4365 days | 0% |
| Jesse Farrell | 8/10 | 4374 days | 0% |
| Philipp Haass | 6/10 | 4374 days | 0% |
| Chantal | 10/10 | 4378 days | 0% |
| Ken S | 10/10 | 4396 days | 14% |
| Ron Stenhouse | 6/10 | 4640 days | 12% |
| Elizabeth Stenhouse | 8/10 | 4640 days | 13% |
| Andreas Jarvel | 9/10 | 4654 days | 14% |
| Pete Wilson | 4/10 | 4657 days | 9% |
| Marcel | 7/10 | 4664 days | 13% |
| Maria | 8/10 | 4664 days | 13% |
| Clare Cannon | 8/10 | 4681 days | 13% |
| Sara Omary | 9/10 | 4681 days | 14% |
| S M | 10/10 | 4699 days | 14% |
| Alison Langley | 8/10 | 4743 days | 13% |
| Liam Day | 9/10 | 4747 days | 14% |
| Martyn Kool | 8/10 | 4747 days | 13% |
| Michael Kretzschmar | 9/10 | 4747 days | 14% |
| Marieke | 9/10 | 4747 days | 14% |
| Kevin Desjandino | 10/10 | 4748 days | 14% |
| Sharon Yates | 10/10 | 4749 days | 14% |
| Frans Derks | 8/10 | 4754 days | 13% |
| Alexandra van den Brack | 8/10 | 4758 days | 13% |
| Frank and Suzanne | 8/10 | 4761 days | 13% |
| Erik Funk | 8/10 | 4768 days | 13% |
| tanyap | 4/10 | 4791 days | 9% |
| Rob Klauer | 8/10 | 5024 days | 13% |
| Petr Stepanek | 7/10 | 5028 days | 13% |
| Alan Brady | 9/10 | 5033 days | 14% |
| sidcupjon | 9/10 | 5036 days | 14% |
| Robert & Bridget Holden | 8/10 | 5045 days | 13% |
| Vincent & Lian | 9/10 | 5046 days | 14% |
| Stam | 9/10 | 5047 days | 14% |
| Tim & Judith | 8/10 | 5048 days | 13% |
| Rob Gill | 10/10 | 5049 days | 14% |
| Cindy & Glen Kerunsky | 10/10 | 5052 days | 14% |
| R Seiferling | 10/10 | 5057 days | 14% |
| Ursi Meier | 9/10 | 5059 days | 14% |
| Thomas Krause | 8/10 | 5059 days | 13% |
| Hugo ten Brink | 8/10 | 5063 days | 13% |
| kiwifrenchy | 10/10 | 5065 days | 14% |
| Katja Klein | 9/10 | 5110 days | 14% |
| Judith | 8/10 | 5116 days | 13% |
| damaca | 10/10 | 5157 days | 14% |
| KarenW | 10/10 | 5218 days | 14% |
| neilqecosse | 9/10 | 5218 days | 14% |
| MeganJane_85 | 1/10 | 5341 days | 6% |
| Marcus | 9/10 | 5361 days | 14% |
| Lisa Milton | 10/10 | 5364 days | 14% |
| Ken Talan | 10/10 | 5367 days | 14% |
| Alita Smith | 9/10 | 5374 days | 14% |
| Leroy Dimitri | 10/10 | 5384 days | 14% |
| Mr & Mrs Palmer | 9/10 | 5388 days | 14% |
| Sayaka | 10/10 | 5388 days | 14% |
| Stoop | 8/10 | 5388 days | 13% |
| Jacob | 9/10 | 5389 days | 14% |
| Maike | 9/10 | 5390 days | 14% |
| Kauzta | 10/10 | 5390 days | 14% |
| Laura Malins | 8/10 | 5392 days | 13% |
| K & J Overton | 8/10 | 5396 days | 13% |
| Betten | 10/10 | 5401 days | 14% |
| taniadeanryanbrittany | 8/10 | 5402 days | 13% |
| Nicolas | 7/10 | 5403 days | 13% |
| Lenore Dejong | 9/10 | 5404 days | 14% |
| Manu & Gabi | 10/10 | 5407 days | 14% |
| Laura Hayes | 10/10 | 5417 days | 14% |
| Maite Severins | 7/10 | 5421 days | 13% |
| Helen Keighley | 10/10 | 5422 days | 14% |
| Ryan Tull | 10/10 | 5425 days | 14% |
| Calvin Parsons | 8/10 | 5430 days | 13% |
| Christian Foerster | 7/10 | 5430 days | 13% |
| Kristie | 10/10 | 5453 days | 14% |
| elpo | 9/10 | 5675 days | 14% |
| Baumgarten | 8/10 | 5703 days | 13% |
| Stephen M | 7/10 | 5748 days | 13% |
| Corine van Been | 8/10 | 5749 days | 13% |
| s_butler | 10/10 | 5755 days | 14% |
| Benedict Fluthman | 6/10 | 5757 days | 12% |
| Peter Schmidt | 5/10 | 5767 days | 10% |
| Nicky and Andy Prescott | 10/10 | 5769 days | 14% |
| Jackie | 9/10 | 5786 days | 14% |
| Vincente Garrido | 8/10 | 5790 days | 13% |
| Keith Wilde | 10/10 | 5790 days | 14% |
| Ian E | 8/10 | 5791 days | 13% |
| kate | 5/10 | 5792 days | 10% |
| Rob | 8/10 | 5793 days | 13% |
| emily walters | 10/10 | 5795 days | 14% |
| Peter Ortner | 9/10 | 5804 days | 14% |
| Nigel Armstrong | 10/10 | 5806 days | 14% |
| Grainne Ahern | 4/10 | 5826 days | 9% |
| Chidlebyte | 10/10 | 5826 days | 14% |
| gabei | 7/10 | 5841 days | 13% |
| mariak | 7/10 | 5843 days | 13% |
| marijad | 10/10 | 5845 days | 14% |
| Paul Nugent | 8/10 | 5857 days | 13% |
| Misha | 10/10 | 5857 days | 14% |
| Alan Riley | 8/10 | 5869 days | 13% |
| Ann Riley | 8/10 | 5869 days | 13% |
| Eimear Doyle | 9/10 | 5869 days | 14% |
| MV Vroenhoven | 10/10 | 5872 days | 14% |
| Sara Reekmans | 9/10 | 5880 days | 14% |
| Emily and Alex | 9/10 | 5884 days | 14% |
| neilchelt | 10/10 | 5887 days | 14% |
| jank | 10/10 | 5948 days | 14% |
| alanvn | 9/10 | 5970 days | 14% |
| bogaard | 10/10 | 5983 days | 14% |
| lorah | 10/10 | 5991 days | 14% |
| joevw | 9/10 | 6056 days | 14% |
| OliverG1 | 8/10 | 6089 days | 13% |
| Tim_P | 6/10 | 6098 days | 12% |
| Nathalie | 8/10 | 6098 days | 13% |
| Sofie | 9/10 | 6101 days | 14% |
| ElissaH | 10/10 | 6103 days | 14% |
| KjellR | 9/10 | 6103 days | 14% |
| BonnieH | 9/10 | 6103 days | 14% |
| CharityW | 8/10 | 6103 days | 13% |
| Paul | 10/10 | 6104 days | 14% |
| eskim1018 | 9/10 | 6113 days | 14% |
| ChrisD | 10/10 | 6117 days | 14% |
| Christian Moll | 9/10 | 6117 days | 14% |
| david | 10/10 | 6117 days | 14% |
| Doll | 10/10 | 6124 days | 14% |
| A | 10/10 | 6132 days | 14% |
| Tolsten | 10/10 | 6132 days | 14% |
| GaryW | 8/10 | 6136 days | 13% |
| ElizabethF | 9/10 | 6136 days | 14% |
| Claudia | 4/10 | 6137 days | 9% |
| Jason | 7/10 | 6140 days | 13% |
| John | 8/10 | 6142 days | 13% |
| Hans | 8/10 | 6149 days | 13% |
| Carly | 7/10 | 6151 days | 13% |
| Jeffrey C | 10/10 | 6160 days | 14% |
| SueB | 10/10 | 6160 days | 14% |
| Dalit | 10/10 | 6167 days | 14% |
| Jon | 10/10 | 6172 days | 14% |
| Kathrin | 9/10 | 6174 days | 14% |
| Oliver | 8/10 | 6175 days | 13% |
| Patrick | 8/10 | 6177 days | 13% |
| Andrew | 8/10 | 6177 days | 13% |
| Graham | 6/10 | 6187 days | 12% |
| Maria | 10/10 | 6214 days | 14% |
| Jordi | 6/10 | 6221 days | 12% |
| nicole | 10/10 | 6223 days | 14% |
| Rowan | 9/10 | 6246 days | 14% |
| abby | 9/10 | 6258 days | 14% |
| Andrew | 9/10 | 6268 days | 14% |
| Anna | 10/10 | 6298 days | 14% |
| Atsuko | 8/10 | 6307 days | 13% |
| Trina | 10/10 | 6325 days | 14% |
| Terri Scott | 10/10 | 6337 days | 14% |
| Brian | 10/10 | 6349 days | 14% |
| Wolfgang | 8/10 | 6373 days | 13% |
| Gorka Rojas | 9/10 | 6373 days | 14% |
| Ashlee Roberts | 10/10 | 6398 days | 14% |
| Corin Kraft | 10/10 | 6443 days | 14% |
| Anke | 9/10 | 6451 days | 14% |
| Olga | 7/10 | 6467 days | 13% |
| Ben | 8/10 | 6472 days | 13% |
| Chris | 7/10 | 6478 days | 13% |
| Elizabeth Woodruff | 5/10 | 6481 days | 10% |
| Sandra Verbaarschot | 10/10 | 6481 days | 14% |
| Denise | 10/10 | 6484 days | 14% |
| Lisa Jones | 10/10 | 6488 days | 14% |
| Richard Anthony | 8/10 | 6488 days | 13% |
| Renske Tehurne | 8/10 | 6492 days | 13% |
| Robert | 10/10 | 6493 days | 14% |
| Elise | 10/10 | 6493 days | 14% |
| Fung | 10/10 | 6493 days | 14% |
| Omri Hasson | 9/10 | 6498 days | 14% |
| Aharon | 10/10 | 6499 days | 14% |
| Sue | 8/10 | 6505 days | 13% |
| Ondrej Kacena | 8/10 | 6512 days | 13% |
| Laurie | 8/10 | 6512 days | 13% |
| Eric P | 10/10 | 6520 days | 14% |
| Alex | 8/10 | 6529 days | 13% |
| Natalie | 10/10 | 6541 days | 14% |
| Paul Cowie | 7/10 | 6576 days | 13% |
| Ard | 8/10 | 6576 days | 13% |
| Gabriel Faber | 8/10 | 6576 days | 13% |
| Michael | 8/10 | 6586 days | 13% |
| purplekat99 | 8/10 | 6588 days | 13% |
| Wendy Williams | 9/10 | 6593 days | 14% |
| MrsWesley | 6/10 | 6828 days | 12% |
| John | 7/10 | 6834 days | 13% |
| Heike | 9/10 | 6841 days | 14% |
| Colin Sinclair | 10/10 | 6842 days | 14% |
| Angela Shearer | 8/10 | 6842 days | 13% |
| Loic | 9/10 | 6866 days | 14% |
| Reggie | 9/10 | 6867 days | 14% |
| FluerBlum | 8/10 | 6879 days | 13% |
| Hermann | 10/10 | 6880 days | 14% |
| Franz-Josef | 9/10 | 6883 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
-4.06% 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 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
2.09% 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.