Hey, 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.
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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
88.10%
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 | 1375 days | 100% |
| Mona Uttendorf | 10/10 | 3055 days | 14% |
| Sebastian Braun | 10/10 | 3060 days | 14% |
| Tanya Davies | 10/10 | 3109 days | 13% |
| Danielle Stam | 7/10 | 3363 days | 9% |
| Carmen | 10/10 | 3679 days | 6% |
| Claudia Hillebrand | 4/10 | 4027 days | 0% |
| Max Backelandt | 9/10 | 4033 days | 2% |
| Marie Toulemonde | 10/10 | 4033 days | 2% |
| Mark | 7/10 | 4036 days | 1% |
| Daniel Robledo | 8/10 | 4055 days | 1% |
| Maria Camen Santos Lopez | 9/10 | 4055 days | 1% |
| Mara | 9/10 | 4056 days | 1% |
| Andrea Morello | 7/10 | 4056 days | 1% |
| Maria = Moller Hansen | 9/10 | 4065 days | 1% |
| Simon Tanguy | 9/10 | 4073 days | 1% |
| Gassat | 4/10 | 4076 days | 0% |
| Lena Jensen | 9/10 | 4089 days | 1% |
| Jesper Andersen | 9/10 | 4089 days | 1% |
| Claire Lieval | 9/10 | 4101 days | 1% |
| Pioter Jurkowski | 7/10 | 4113 days | 1% |
| Jesse Farrell | 8/10 | 4122 days | 1% |
| Philipp Haass | 6/10 | 4122 days | 0% |
| Chantal | 10/10 | 4126 days | 1% |
| Ken S | 10/10 | 4144 days | 0% |
| Ron Stenhouse | 6/10 | 4388 days | 3% |
| Elizabeth Stenhouse | 8/10 | 4388 days | 4% |
| Andreas Jarvel | 9/10 | 4402 days | 4% |
| Pete Wilson | 4/10 | 4405 days | 2% |
| Marcel | 7/10 | 4412 days | 3% |
| Maria | 8/10 | 4412 days | 4% |
| Clare Cannon | 8/10 | 4429 days | 4% |
| Sara Omary | 9/10 | 4429 days | 4% |
| S M | 10/10 | 4447 days | 4% |
| Alison Langley | 8/10 | 4491 days | 4% |
| Liam Day | 9/10 | 4495 days | 4% |
| Martyn Kool | 8/10 | 4495 days | 4% |
| Michael Kretzschmar | 9/10 | 4495 days | 4% |
| Marieke | 9/10 | 4495 days | 4% |
| Kevin Desjandino | 10/10 | 4496 days | 4% |
| Sharon Yates | 10/10 | 4497 days | 4% |
| Frans Derks | 8/10 | 4502 days | 4% |
| Alexandra van den Brack | 8/10 | 4506 days | 4% |
| Frank and Suzanne | 8/10 | 4509 days | 4% |
| Erik Funk | 8/10 | 4516 days | 4% |
| tanyap | 4/10 | 4539 days | 2% |
| Rob Klauer | 8/10 | 4772 days | 4% |
| Petr Stepanek | 7/10 | 4776 days | 3% |
| Alan Brady | 9/10 | 4781 days | 4% |
| sidcupjon | 9/10 | 4784 days | 4% |
| Robert & Bridget Holden | 8/10 | 4793 days | 4% |
| Vincent & Lian | 9/10 | 4794 days | 4% |
| Stam | 9/10 | 4795 days | 4% |
| Tim & Judith | 8/10 | 4796 days | 4% |
| Rob Gill | 10/10 | 4797 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4800 days | 4% |
| R Seiferling | 10/10 | 4805 days | 4% |
| Ursi Meier | 9/10 | 4807 days | 4% |
| Thomas Krause | 8/10 | 4807 days | 4% |
| Hugo ten Brink | 8/10 | 4811 days | 4% |
| kiwifrenchy | 10/10 | 4813 days | 4% |
| Katja Klein | 9/10 | 4858 days | 4% |
| Judith | 8/10 | 4864 days | 4% |
| damaca | 10/10 | 4905 days | 4% |
| KarenW | 10/10 | 4966 days | 4% |
| neilqecosse | 9/10 | 4966 days | 4% |
| MeganJane_85 | 1/10 | 5089 days | 0% |
| Marcus | 9/10 | 5109 days | 4% |
| Lisa Milton | 10/10 | 5112 days | 4% |
| Ken Talan | 10/10 | 5115 days | 4% |
| Alita Smith | 9/10 | 5122 days | 4% |
| Leroy Dimitri | 10/10 | 5132 days | 4% |
| Mr & Mrs Palmer | 9/10 | 5136 days | 4% |
| Sayaka | 10/10 | 5136 days | 4% |
| Stoop | 8/10 | 5136 days | 4% |
| Jacob | 9/10 | 5137 days | 4% |
| Maike | 9/10 | 5138 days | 4% |
| Kauzta | 10/10 | 5138 days | 4% |
| Laura Malins | 8/10 | 5140 days | 4% |
| K & J Overton | 8/10 | 5144 days | 4% |
| Betten | 10/10 | 5149 days | 4% |
| taniadeanryanbrittany | 8/10 | 5150 days | 4% |
| Nicolas | 7/10 | 5151 days | 3% |
| Lenore Dejong | 9/10 | 5152 days | 4% |
| Manu & Gabi | 10/10 | 5155 days | 4% |
| Laura Hayes | 10/10 | 5165 days | 4% |
| Maite Severins | 7/10 | 5169 days | 3% |
| Helen Keighley | 10/10 | 5170 days | 4% |
| Ryan Tull | 10/10 | 5173 days | 4% |
| Calvin Parsons | 8/10 | 5178 days | 4% |
| Christian Foerster | 7/10 | 5178 days | 3% |
| Kristie | 10/10 | 5201 days | 4% |
| elpo | 9/10 | 5423 days | 4% |
| Baumgarten | 8/10 | 5451 days | 4% |
| Stephen M | 7/10 | 5496 days | 3% |
| Corine van Been | 8/10 | 5497 days | 4% |
| s_butler | 10/10 | 5503 days | 4% |
| Benedict Fluthman | 6/10 | 5505 days | 3% |
| Peter Schmidt | 5/10 | 5515 days | 2% |
| Nicky and Andy Prescott | 10/10 | 5517 days | 4% |
| Jackie | 9/10 | 5534 days | 4% |
| Vincente Garrido | 8/10 | 5538 days | 4% |
| Keith Wilde | 10/10 | 5538 days | 4% |
| Ian E | 8/10 | 5539 days | 4% |
| kate | 5/10 | 5540 days | 2% |
| Rob | 8/10 | 5541 days | 4% |
| emily walters | 10/10 | 5543 days | 4% |
| Peter Ortner | 9/10 | 5552 days | 4% |
| Nigel Armstrong | 10/10 | 5554 days | 4% |
| Grainne Ahern | 4/10 | 5574 days | 2% |
| Chidlebyte | 10/10 | 5574 days | 4% |
| gabei | 7/10 | 5589 days | 3% |
| mariak | 7/10 | 5591 days | 3% |
| marijad | 10/10 | 5593 days | 4% |
| Paul Nugent | 8/10 | 5605 days | 4% |
| Misha | 10/10 | 5605 days | 4% |
| Alan Riley | 8/10 | 5617 days | 4% |
| Ann Riley | 8/10 | 5617 days | 4% |
| Eimear Doyle | 9/10 | 5617 days | 4% |
| MV Vroenhoven | 10/10 | 5620 days | 4% |
| Sara Reekmans | 9/10 | 5628 days | 4% |
| Emily and Alex | 9/10 | 5632 days | 4% |
| neilchelt | 10/10 | 5635 days | 4% |
| jank | 10/10 | 5696 days | 4% |
| alanvn | 9/10 | 5718 days | 4% |
| bogaard | 10/10 | 5731 days | 4% |
| lorah | 10/10 | 5739 days | 4% |
| joevw | 9/10 | 5804 days | 4% |
| OliverG1 | 8/10 | 5837 days | 4% |
| Tim_P | 6/10 | 5846 days | 3% |
| Nathalie | 8/10 | 5846 days | 4% |
| Sofie | 9/10 | 5849 days | 4% |
| ElissaH | 10/10 | 5851 days | 4% |
| KjellR | 9/10 | 5851 days | 4% |
| BonnieH | 9/10 | 5851 days | 4% |
| CharityW | 8/10 | 5851 days | 4% |
| Paul | 10/10 | 5853 days | 4% |
| eskim1018 | 9/10 | 5861 days | 4% |
| ChrisD | 10/10 | 5865 days | 4% |
| Christian Moll | 9/10 | 5865 days | 4% |
| david | 10/10 | 5865 days | 4% |
| Doll | 10/10 | 5873 days | 4% |
| A | 10/10 | 5881 days | 4% |
| Tolsten | 10/10 | 5881 days | 4% |
| GaryW | 8/10 | 5884 days | 4% |
| ElizabethF | 9/10 | 5884 days | 4% |
| Claudia | 4/10 | 5886 days | 2% |
| Jason | 7/10 | 5888 days | 3% |
| John | 8/10 | 5891 days | 4% |
| Hans | 8/10 | 5898 days | 4% |
| Carly | 7/10 | 5900 days | 3% |
| Jeffrey C | 10/10 | 5908 days | 4% |
| SueB | 10/10 | 5908 days | 4% |
| Dalit | 10/10 | 5915 days | 4% |
| Jon | 10/10 | 5920 days | 4% |
| Kathrin | 9/10 | 5922 days | 4% |
| Oliver | 8/10 | 5924 days | 4% |
| Patrick | 8/10 | 5926 days | 4% |
| Andrew | 8/10 | 5926 days | 4% |
| Graham | 6/10 | 5935 days | 3% |
| Maria | 10/10 | 5962 days | 4% |
| Jordi | 6/10 | 5970 days | 3% |
| nicole | 10/10 | 5972 days | 4% |
| Rowan | 9/10 | 5995 days | 4% |
| abby | 9/10 | 6006 days | 4% |
| Andrew | 9/10 | 6016 days | 4% |
| Anna | 10/10 | 6047 days | 4% |
| Atsuko | 8/10 | 6056 days | 4% |
| Trina | 10/10 | 6074 days | 4% |
| Terri Scott | 10/10 | 6085 days | 4% |
| Brian | 10/10 | 6098 days | 4% |
| Wolfgang | 8/10 | 6122 days | 4% |
| Gorka Rojas | 9/10 | 6122 days | 4% |
| Ashlee Roberts | 10/10 | 6146 days | 4% |
| Corin Kraft | 10/10 | 6191 days | 4% |
| Anke | 9/10 | 6199 days | 4% |
| Olga | 7/10 | 6215 days | 3% |
| Ben | 8/10 | 6220 days | 4% |
| Chris | 7/10 | 6226 days | 3% |
| Elizabeth Woodruff | 5/10 | 6229 days | 2% |
| Sandra Verbaarschot | 10/10 | 6229 days | 4% |
| Denise | 10/10 | 6232 days | 4% |
| Lisa Jones | 10/10 | 6236 days | 4% |
| Richard Anthony | 8/10 | 6236 days | 4% |
| Renske Tehurne | 8/10 | 6240 days | 4% |
| Robert | 10/10 | 6241 days | 4% |
| Elise | 10/10 | 6241 days | 4% |
| Fung | 10/10 | 6241 days | 4% |
| Omri Hasson | 9/10 | 6246 days | 4% |
| Aharon | 10/10 | 6247 days | 4% |
| Sue | 8/10 | 6253 days | 4% |
| Ondrej Kacena | 8/10 | 6260 days | 4% |
| Laurie | 8/10 | 6260 days | 4% |
| Eric P | 10/10 | 6268 days | 4% |
| Alex | 8/10 | 6277 days | 4% |
| Natalie | 10/10 | 6289 days | 4% |
| Paul Cowie | 7/10 | 6324 days | 3% |
| Ard | 8/10 | 6324 days | 4% |
| Gabriel Faber | 8/10 | 6324 days | 4% |
| Michael | 8/10 | 6334 days | 4% |
| purplekat99 | 8/10 | 6336 days | 4% |
| Wendy Williams | 9/10 | 6341 days | 4% |
| MrsWesley | 6/10 | 6576 days | 3% |
| John | 7/10 | 6582 days | 3% |
| Heike | 9/10 | 6589 days | 4% |
| Colin Sinclair | 10/10 | 6590 days | 4% |
| Angela Shearer | 8/10 | 6590 days | 4% |
| Loic | 9/10 | 6614 days | 4% |
| Reggie | 9/10 | 6615 days | 4% |
| FluerBlum | 8/10 | 6627 days | 4% |
| Hermann | 10/10 | 6628 days | 4% |
| Franz-Josef | 9/10 | 6631 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
-3.64% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 61 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 | -3.59% |
| 198 | -3.61% |
| 199 | -3.63% |
| 200 | -3.64% |
| 201 | -3.66% |
| 202 | -3.68% |
| 203 | -3.70% |
| … | … |
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.