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
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 | 1629 days | 100% |
| Mona Uttendorf | 10/10 | 3309 days | 29% |
| Sebastian Braun | 10/10 | 3314 days | 29% |
| Tanya Davies | 10/10 | 3362 days | 28% |
| Danielle Stam | 7/10 | 3617 days | 19% |
| Carmen | 10/10 | 3933 days | 12% |
| Claudia Hillebrand | 4/10 | 4281 days | 2% |
| Max Backelandt | 9/10 | 4287 days | 2% |
| Marie Toulemonde | 10/10 | 4287 days | 2% |
| Mark | 7/10 | 4290 days | 2% |
| Daniel Robledo | 8/10 | 4309 days | 2% |
| Maria Camen Santos Lopez | 9/10 | 4309 days | 2% |
| Mara | 9/10 | 4310 days | 2% |
| Andrea Morello | 7/10 | 4310 days | 2% |
| Maria = Moller Hansen | 9/10 | 4319 days | 2% |
| Simon Tanguy | 9/10 | 4327 days | 1% |
| Gassat | 4/10 | 4330 days | 1% |
| Lena Jensen | 9/10 | 4343 days | 1% |
| Jesper Andersen | 9/10 | 4343 days | 1% |
| Claire Lieval | 9/10 | 4355 days | 1% |
| Pioter Jurkowski | 7/10 | 4367 days | 0% |
| Jesse Farrell | 8/10 | 4376 days | 0% |
| Philipp Haass | 6/10 | 4376 days | 0% |
| Chantal | 10/10 | 4380 days | 14% |
| Ken S | 10/10 | 4398 days | 14% |
| Ron Stenhouse | 6/10 | 4642 days | 12% |
| Elizabeth Stenhouse | 8/10 | 4642 days | 14% |
| Andreas Jarvel | 9/10 | 4656 days | 14% |
| Pete Wilson | 4/10 | 4659 days | 9% |
| Marcel | 7/10 | 4666 days | 13% |
| Maria | 8/10 | 4666 days | 14% |
| Clare Cannon | 8/10 | 4683 days | 14% |
| Sara Omary | 9/10 | 4683 days | 14% |
| S M | 10/10 | 4701 days | 14% |
| Alison Langley | 8/10 | 4745 days | 14% |
| Liam Day | 9/10 | 4749 days | 14% |
| Martyn Kool | 8/10 | 4749 days | 14% |
| Michael Kretzschmar | 9/10 | 4749 days | 14% |
| Marieke | 9/10 | 4749 days | 14% |
| Kevin Desjandino | 10/10 | 4750 days | 14% |
| Sharon Yates | 10/10 | 4751 days | 14% |
| Frans Derks | 8/10 | 4756 days | 14% |
| Alexandra van den Brack | 8/10 | 4760 days | 14% |
| Frank and Suzanne | 8/10 | 4763 days | 14% |
| Erik Funk | 8/10 | 4770 days | 14% |
| tanyap | 4/10 | 4793 days | 9% |
| Rob Klauer | 8/10 | 5026 days | 14% |
| Petr Stepanek | 7/10 | 5030 days | 13% |
| Alan Brady | 9/10 | 5035 days | 14% |
| sidcupjon | 9/10 | 5038 days | 14% |
| Robert & Bridget Holden | 8/10 | 5047 days | 14% |
| Vincent & Lian | 9/10 | 5048 days | 14% |
| Stam | 9/10 | 5049 days | 14% |
| Tim & Judith | 8/10 | 5050 days | 14% |
| Rob Gill | 10/10 | 5051 days | 14% |
| Cindy & Glen Kerunsky | 10/10 | 5054 days | 14% |
| R Seiferling | 10/10 | 5059 days | 14% |
| Ursi Meier | 9/10 | 5061 days | 14% |
| Thomas Krause | 8/10 | 5061 days | 14% |
| Hugo ten Brink | 8/10 | 5065 days | 14% |
| kiwifrenchy | 10/10 | 5067 days | 14% |
| Katja Klein | 9/10 | 5112 days | 14% |
| Judith | 8/10 | 5118 days | 14% |
| damaca | 10/10 | 5159 days | 14% |
| KarenW | 10/10 | 5220 days | 14% |
| neilqecosse | 9/10 | 5220 days | 14% |
| MeganJane_85 | 1/10 | 5343 days | 6% |
| Marcus | 9/10 | 5363 days | 14% |
| Lisa Milton | 10/10 | 5366 days | 14% |
| Ken Talan | 10/10 | 5369 days | 14% |
| Alita Smith | 9/10 | 5376 days | 14% |
| Leroy Dimitri | 10/10 | 5386 days | 14% |
| Mr & Mrs Palmer | 9/10 | 5390 days | 14% |
| Sayaka | 10/10 | 5390 days | 14% |
| Stoop | 8/10 | 5390 days | 14% |
| Jacob | 9/10 | 5391 days | 14% |
| Maike | 9/10 | 5392 days | 14% |
| Kauzta | 10/10 | 5392 days | 14% |
| Laura Malins | 8/10 | 5394 days | 14% |
| K & J Overton | 8/10 | 5398 days | 14% |
| Betten | 10/10 | 5403 days | 14% |
| taniadeanryanbrittany | 8/10 | 5404 days | 14% |
| Nicolas | 7/10 | 5405 days | 13% |
| Lenore Dejong | 9/10 | 5406 days | 14% |
| Manu & Gabi | 10/10 | 5409 days | 14% |
| Laura Hayes | 10/10 | 5419 days | 14% |
| Maite Severins | 7/10 | 5423 days | 13% |
| Helen Keighley | 10/10 | 5424 days | 14% |
| Ryan Tull | 10/10 | 5427 days | 14% |
| Calvin Parsons | 8/10 | 5432 days | 14% |
| Christian Foerster | 7/10 | 5432 days | 13% |
| Kristie | 10/10 | 5455 days | 14% |
| elpo | 9/10 | 5677 days | 14% |
| Baumgarten | 8/10 | 5705 days | 14% |
| Stephen M | 7/10 | 5750 days | 13% |
| Corine van Been | 8/10 | 5751 days | 14% |
| s_butler | 10/10 | 5757 days | 14% |
| Benedict Fluthman | 6/10 | 5759 days | 12% |
| Peter Schmidt | 5/10 | 5769 days | 11% |
| Nicky and Andy Prescott | 10/10 | 5771 days | 14% |
| Jackie | 9/10 | 5788 days | 14% |
| Vincente Garrido | 8/10 | 5792 days | 14% |
| Keith Wilde | 10/10 | 5792 days | 14% |
| Ian E | 8/10 | 5793 days | 14% |
| kate | 5/10 | 5794 days | 11% |
| Rob | 8/10 | 5795 days | 14% |
| emily walters | 10/10 | 5797 days | 14% |
| Peter Ortner | 9/10 | 5806 days | 14% |
| Nigel Armstrong | 10/10 | 5808 days | 14% |
| Grainne Ahern | 4/10 | 5828 days | 9% |
| Chidlebyte | 10/10 | 5828 days | 14% |
| gabei | 7/10 | 5843 days | 13% |
| mariak | 7/10 | 5845 days | 13% |
| marijad | 10/10 | 5847 days | 14% |
| Paul Nugent | 8/10 | 5859 days | 14% |
| Misha | 10/10 | 5859 days | 14% |
| Alan Riley | 8/10 | 5871 days | 14% |
| Ann Riley | 8/10 | 5871 days | 14% |
| Eimear Doyle | 9/10 | 5871 days | 14% |
| MV Vroenhoven | 10/10 | 5874 days | 14% |
| Sara Reekmans | 9/10 | 5882 days | 14% |
| Emily and Alex | 9/10 | 5886 days | 14% |
| neilchelt | 10/10 | 5889 days | 14% |
| jank | 10/10 | 5950 days | 14% |
| alanvn | 9/10 | 5972 days | 14% |
| bogaard | 10/10 | 5985 days | 14% |
| lorah | 10/10 | 5993 days | 14% |
| joevw | 9/10 | 6058 days | 14% |
| OliverG1 | 8/10 | 6091 days | 14% |
| Tim_P | 6/10 | 6100 days | 12% |
| Nathalie | 8/10 | 6100 days | 14% |
| Sofie | 9/10 | 6103 days | 14% |
| ElissaH | 10/10 | 6105 days | 14% |
| KjellR | 9/10 | 6105 days | 14% |
| BonnieH | 9/10 | 6105 days | 14% |
| CharityW | 8/10 | 6105 days | 14% |
| Paul | 10/10 | 6106 days | 14% |
| eskim1018 | 9/10 | 6114 days | 14% |
| ChrisD | 10/10 | 6119 days | 14% |
| Christian Moll | 9/10 | 6119 days | 14% |
| david | 10/10 | 6119 days | 14% |
| Doll | 10/10 | 6126 days | 14% |
| A | 10/10 | 6134 days | 14% |
| Tolsten | 10/10 | 6134 days | 14% |
| GaryW | 8/10 | 6138 days | 14% |
| ElizabethF | 9/10 | 6138 days | 14% |
| Claudia | 4/10 | 6139 days | 9% |
| Jason | 7/10 | 6142 days | 13% |
| John | 8/10 | 6144 days | 14% |
| Hans | 8/10 | 6151 days | 14% |
| Carly | 7/10 | 6153 days | 13% |
| Jeffrey C | 10/10 | 6162 days | 14% |
| SueB | 10/10 | 6162 days | 14% |
| Dalit | 10/10 | 6169 days | 14% |
| Jon | 10/10 | 6174 days | 14% |
| Kathrin | 9/10 | 6176 days | 14% |
| Oliver | 8/10 | 6177 days | 14% |
| Patrick | 8/10 | 6179 days | 14% |
| Andrew | 8/10 | 6179 days | 14% |
| Graham | 6/10 | 6188 days | 12% |
| Maria | 10/10 | 6215 days | 14% |
| Jordi | 6/10 | 6223 days | 12% |
| nicole | 10/10 | 6225 days | 14% |
| Rowan | 9/10 | 6248 days | 14% |
| abby | 9/10 | 6259 days | 14% |
| Andrew | 9/10 | 6270 days | 14% |
| Anna | 10/10 | 6300 days | 14% |
| Atsuko | 8/10 | 6309 days | 14% |
| Trina | 10/10 | 6327 days | 14% |
| Terri Scott | 10/10 | 6338 days | 14% |
| Brian | 10/10 | 6351 days | 14% |
| Wolfgang | 8/10 | 6375 days | 14% |
| Gorka Rojas | 9/10 | 6375 days | 14% |
| Ashlee Roberts | 10/10 | 6400 days | 14% |
| Corin Kraft | 10/10 | 6445 days | 14% |
| Anke | 9/10 | 6453 days | 14% |
| Olga | 7/10 | 6469 days | 13% |
| Ben | 8/10 | 6474 days | 14% |
| Chris | 7/10 | 6480 days | 13% |
| Elizabeth Woodruff | 5/10 | 6483 days | 11% |
| Sandra Verbaarschot | 10/10 | 6483 days | 14% |
| Denise | 10/10 | 6486 days | 14% |
| Lisa Jones | 10/10 | 6490 days | 14% |
| Richard Anthony | 8/10 | 6490 days | 14% |
| Renske Tehurne | 8/10 | 6494 days | 14% |
| Robert | 10/10 | 6495 days | 14% |
| Elise | 10/10 | 6495 days | 14% |
| Fung | 10/10 | 6495 days | 14% |
| Omri Hasson | 9/10 | 6500 days | 14% |
| Aharon | 10/10 | 6501 days | 14% |
| Sue | 8/10 | 6507 days | 14% |
| Ondrej Kacena | 8/10 | 6514 days | 14% |
| Laurie | 8/10 | 6514 days | 14% |
| Eric P | 10/10 | 6522 days | 14% |
| Alex | 8/10 | 6531 days | 14% |
| Natalie | 10/10 | 6543 days | 14% |
| Paul Cowie | 7/10 | 6578 days | 13% |
| Ard | 8/10 | 6578 days | 14% |
| Gabriel Faber | 8/10 | 6578 days | 14% |
| Michael | 8/10 | 6588 days | 14% |
| purplekat99 | 8/10 | 6590 days | 14% |
| Wendy Williams | 9/10 | 6595 days | 14% |
| MrsWesley | 6/10 | 6830 days | 12% |
| John | 7/10 | 6836 days | 13% |
| Heike | 9/10 | 6843 days | 14% |
| Colin Sinclair | 10/10 | 6844 days | 14% |
| Angela Shearer | 8/10 | 6844 days | 14% |
| Loic | 9/10 | 6868 days | 14% |
| Reggie | 9/10 | 6869 days | 14% |
| FluerBlum | 8/10 | 6881 days | 14% |
| Hermann | 10/10 | 6882 days | 14% |
| Franz-Josef | 9/10 | 6885 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 | -4.08% |
| 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.