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
88.12%
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 | 1367 days | 100% |
| Mona Uttendorf | 10/10 | 3047 days | 13% |
| Sebastian Braun | 10/10 | 3052 days | 13% |
| Tanya Davies | 10/10 | 3101 days | 13% |
| Danielle Stam | 7/10 | 3355 days | 9% |
| Carmen | 10/10 | 3671 days | 6% |
| Claudia Hillebrand | 4/10 | 4019 days | 0% |
| Max Backelandt | 9/10 | 4025 days | 2% |
| Marie Toulemonde | 10/10 | 4025 days | 2% |
| Mark | 7/10 | 4028 days | 1% |
| Daniel Robledo | 8/10 | 4047 days | 1% |
| Maria Camen Santos Lopez | 9/10 | 4047 days | 1% |
| Mara | 9/10 | 4048 days | 1% |
| Andrea Morello | 7/10 | 4048 days | 1% |
| Maria = Moller Hansen | 9/10 | 4057 days | 1% |
| Simon Tanguy | 9/10 | 4065 days | 1% |
| Gassat | 4/10 | 4068 days | 0% |
| Lena Jensen | 9/10 | 4081 days | 1% |
| Jesper Andersen | 9/10 | 4081 days | 1% |
| Claire Lieval | 9/10 | 4093 days | 1% |
| Pioter Jurkowski | 7/10 | 4105 days | 1% |
| Jesse Farrell | 8/10 | 4114 days | 1% |
| Philipp Haass | 6/10 | 4114 days | 0% |
| Chantal | 10/10 | 4118 days | 1% |
| Ken S | 10/10 | 4136 days | 0% |
| Ron Stenhouse | 6/10 | 4380 days | 3% |
| Elizabeth Stenhouse | 8/10 | 4380 days | 4% |
| Andreas Jarvel | 9/10 | 4394 days | 4% |
| Pete Wilson | 4/10 | 4397 days | 2% |
| Marcel | 7/10 | 4404 days | 3% |
| Maria | 8/10 | 4404 days | 4% |
| Clare Cannon | 8/10 | 4421 days | 4% |
| Sara Omary | 9/10 | 4421 days | 4% |
| S M | 10/10 | 4439 days | 4% |
| Alison Langley | 8/10 | 4483 days | 4% |
| Liam Day | 9/10 | 4487 days | 4% |
| Martyn Kool | 8/10 | 4487 days | 4% |
| Michael Kretzschmar | 9/10 | 4487 days | 4% |
| Marieke | 9/10 | 4487 days | 4% |
| Kevin Desjandino | 10/10 | 4488 days | 4% |
| Sharon Yates | 10/10 | 4489 days | 4% |
| Frans Derks | 8/10 | 4494 days | 4% |
| Alexandra van den Brack | 8/10 | 4498 days | 4% |
| Frank and Suzanne | 8/10 | 4501 days | 4% |
| Erik Funk | 8/10 | 4508 days | 4% |
| tanyap | 4/10 | 4531 days | 2% |
| Rob Klauer | 8/10 | 4764 days | 4% |
| Petr Stepanek | 7/10 | 4768 days | 3% |
| Alan Brady | 9/10 | 4773 days | 4% |
| sidcupjon | 9/10 | 4776 days | 4% |
| Robert & Bridget Holden | 8/10 | 4785 days | 4% |
| Vincent & Lian | 9/10 | 4786 days | 4% |
| Stam | 9/10 | 4787 days | 4% |
| Tim & Judith | 8/10 | 4788 days | 4% |
| Rob Gill | 10/10 | 4789 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4792 days | 4% |
| R Seiferling | 10/10 | 4797 days | 4% |
| Ursi Meier | 9/10 | 4799 days | 4% |
| Thomas Krause | 8/10 | 4799 days | 4% |
| Hugo ten Brink | 8/10 | 4803 days | 4% |
| kiwifrenchy | 10/10 | 4805 days | 4% |
| Katja Klein | 9/10 | 4850 days | 4% |
| Judith | 8/10 | 4856 days | 4% |
| damaca | 10/10 | 4897 days | 4% |
| KarenW | 10/10 | 4958 days | 4% |
| neilqecosse | 9/10 | 4958 days | 4% |
| MeganJane_85 | 1/10 | 5081 days | 0% |
| Marcus | 9/10 | 5101 days | 4% |
| Lisa Milton | 10/10 | 5104 days | 4% |
| Ken Talan | 10/10 | 5107 days | 4% |
| Alita Smith | 9/10 | 5114 days | 4% |
| Leroy Dimitri | 10/10 | 5124 days | 4% |
| Mr & Mrs Palmer | 9/10 | 5128 days | 4% |
| Sayaka | 10/10 | 5128 days | 4% |
| Stoop | 8/10 | 5128 days | 4% |
| Jacob | 9/10 | 5129 days | 4% |
| Maike | 9/10 | 5130 days | 4% |
| Kauzta | 10/10 | 5130 days | 4% |
| Laura Malins | 8/10 | 5132 days | 4% |
| K & J Overton | 8/10 | 5136 days | 4% |
| Betten | 10/10 | 5141 days | 4% |
| taniadeanryanbrittany | 8/10 | 5142 days | 4% |
| Nicolas | 7/10 | 5143 days | 3% |
| Lenore Dejong | 9/10 | 5144 days | 4% |
| Manu & Gabi | 10/10 | 5147 days | 4% |
| Laura Hayes | 10/10 | 5157 days | 4% |
| Maite Severins | 7/10 | 5161 days | 3% |
| Helen Keighley | 10/10 | 5162 days | 4% |
| Ryan Tull | 10/10 | 5165 days | 4% |
| Calvin Parsons | 8/10 | 5170 days | 4% |
| Christian Foerster | 7/10 | 5170 days | 3% |
| Kristie | 10/10 | 5193 days | 4% |
| elpo | 9/10 | 5415 days | 4% |
| Baumgarten | 8/10 | 5443 days | 4% |
| Stephen M | 7/10 | 5488 days | 3% |
| Corine van Been | 8/10 | 5489 days | 4% |
| s_butler | 10/10 | 5495 days | 4% |
| Benedict Fluthman | 6/10 | 5497 days | 3% |
| Peter Schmidt | 5/10 | 5507 days | 2% |
| Nicky and Andy Prescott | 10/10 | 5509 days | 4% |
| Jackie | 9/10 | 5526 days | 4% |
| Vincente Garrido | 8/10 | 5530 days | 4% |
| Keith Wilde | 10/10 | 5530 days | 4% |
| Ian E | 8/10 | 5531 days | 4% |
| kate | 5/10 | 5532 days | 2% |
| Rob | 8/10 | 5533 days | 4% |
| emily walters | 10/10 | 5535 days | 4% |
| Peter Ortner | 9/10 | 5544 days | 4% |
| Nigel Armstrong | 10/10 | 5546 days | 4% |
| Grainne Ahern | 4/10 | 5566 days | 2% |
| Chidlebyte | 10/10 | 5566 days | 4% |
| gabei | 7/10 | 5581 days | 3% |
| mariak | 7/10 | 5583 days | 3% |
| marijad | 10/10 | 5585 days | 4% |
| Paul Nugent | 8/10 | 5597 days | 4% |
| Misha | 10/10 | 5597 days | 4% |
| Alan Riley | 8/10 | 5609 days | 4% |
| Ann Riley | 8/10 | 5609 days | 4% |
| Eimear Doyle | 9/10 | 5609 days | 4% |
| MV Vroenhoven | 10/10 | 5612 days | 4% |
| Sara Reekmans | 9/10 | 5620 days | 4% |
| Emily and Alex | 9/10 | 5624 days | 4% |
| neilchelt | 10/10 | 5627 days | 4% |
| jank | 10/10 | 5688 days | 4% |
| alanvn | 9/10 | 5710 days | 4% |
| bogaard | 10/10 | 5723 days | 4% |
| lorah | 10/10 | 5731 days | 4% |
| joevw | 9/10 | 5796 days | 4% |
| OliverG1 | 8/10 | 5829 days | 4% |
| Tim_P | 6/10 | 5838 days | 3% |
| Nathalie | 8/10 | 5838 days | 4% |
| Sofie | 9/10 | 5841 days | 4% |
| ElissaH | 10/10 | 5843 days | 4% |
| KjellR | 9/10 | 5843 days | 4% |
| BonnieH | 9/10 | 5843 days | 4% |
| CharityW | 8/10 | 5843 days | 4% |
| Paul | 10/10 | 5844 days | 4% |
| eskim1018 | 9/10 | 5853 days | 4% |
| ChrisD | 10/10 | 5857 days | 4% |
| Christian Moll | 9/10 | 5857 days | 4% |
| david | 10/10 | 5857 days | 4% |
| Doll | 10/10 | 5865 days | 4% |
| A | 10/10 | 5873 days | 4% |
| Tolsten | 10/10 | 5873 days | 4% |
| GaryW | 8/10 | 5876 days | 4% |
| ElizabethF | 9/10 | 5876 days | 4% |
| Claudia | 4/10 | 5878 days | 2% |
| Jason | 7/10 | 5880 days | 3% |
| John | 8/10 | 5883 days | 4% |
| Hans | 8/10 | 5889 days | 4% |
| Carly | 7/10 | 5892 days | 3% |
| Jeffrey C | 10/10 | 5900 days | 4% |
| SueB | 10/10 | 5900 days | 4% |
| Dalit | 10/10 | 5907 days | 4% |
| Jon | 10/10 | 5912 days | 4% |
| Kathrin | 9/10 | 5914 days | 4% |
| Oliver | 8/10 | 5915 days | 4% |
| Patrick | 8/10 | 5918 days | 4% |
| Andrew | 8/10 | 5918 days | 4% |
| Graham | 6/10 | 5927 days | 3% |
| Maria | 10/10 | 5954 days | 4% |
| Jordi | 6/10 | 5962 days | 3% |
| nicole | 10/10 | 5963 days | 4% |
| Rowan | 9/10 | 5987 days | 4% |
| abby | 9/10 | 5998 days | 4% |
| Andrew | 9/10 | 6008 days | 4% |
| Anna | 10/10 | 6038 days | 4% |
| Atsuko | 8/10 | 6048 days | 4% |
| Trina | 10/10 | 6066 days | 4% |
| Terri Scott | 10/10 | 6077 days | 4% |
| Brian | 10/10 | 6090 days | 4% |
| Wolfgang | 8/10 | 6114 days | 4% |
| Gorka Rojas | 9/10 | 6114 days | 4% |
| Ashlee Roberts | 10/10 | 6138 days | 4% |
| Corin Kraft | 10/10 | 6183 days | 4% |
| Anke | 9/10 | 6191 days | 4% |
| Olga | 7/10 | 6207 days | 3% |
| Ben | 8/10 | 6212 days | 4% |
| Chris | 7/10 | 6218 days | 3% |
| Elizabeth Woodruff | 5/10 | 6221 days | 2% |
| Sandra Verbaarschot | 10/10 | 6221 days | 4% |
| Denise | 10/10 | 6224 days | 4% |
| Lisa Jones | 10/10 | 6228 days | 4% |
| Richard Anthony | 8/10 | 6228 days | 4% |
| Renske Tehurne | 8/10 | 6232 days | 4% |
| Robert | 10/10 | 6233 days | 4% |
| Elise | 10/10 | 6233 days | 4% |
| Fung | 10/10 | 6233 days | 4% |
| Omri Hasson | 9/10 | 6238 days | 4% |
| Aharon | 10/10 | 6239 days | 4% |
| Sue | 8/10 | 6245 days | 4% |
| Ondrej Kacena | 8/10 | 6252 days | 4% |
| Laurie | 8/10 | 6252 days | 4% |
| Eric P | 10/10 | 6260 days | 4% |
| Alex | 8/10 | 6269 days | 4% |
| Natalie | 10/10 | 6281 days | 4% |
| Paul Cowie | 7/10 | 6316 days | 3% |
| Ard | 8/10 | 6316 days | 4% |
| Gabriel Faber | 8/10 | 6316 days | 4% |
| Michael | 8/10 | 6326 days | 4% |
| purplekat99 | 8/10 | 6328 days | 4% |
| Wendy Williams | 9/10 | 6333 days | 4% |
| MrsWesley | 6/10 | 6568 days | 3% |
| John | 7/10 | 6574 days | 3% |
| Heike | 9/10 | 6581 days | 4% |
| Colin Sinclair | 10/10 | 6582 days | 4% |
| Angela Shearer | 8/10 | 6582 days | 4% |
| Loic | 9/10 | 6606 days | 4% |
| Reggie | 9/10 | 6607 days | 4% |
| FluerBlum | 8/10 | 6619 days | 4% |
| Hermann | 10/10 | 6620 days | 4% |
| Franz-Josef | 9/10 | 6623 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
-3.79% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 59 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 | -3.73% |
| 198 | -3.75% |
| 199 | -3.77% |
| 200 | -3.79% |
| 201 | -3.81% |
| 202 | -3.83% |
| 203 | -3.85% |
| … | … |
Balancing Adjustment
1.96% 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.