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
88.86%
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 | 1219 days | 100% |
| Mona Uttendorf | 10/10 | 2899 days | 11% |
| Sebastian Braun | 10/10 | 2904 days | 11% |
| Tanya Davies | 10/10 | 2952 days | 11% |
| Danielle Stam | 7/10 | 3207 days | 8% |
| Carmen | 10/10 | 3523 days | 6% |
| Claudia Hillebrand | 4/10 | 3871 days | 2% |
| Max Backelandt | 9/10 | 3877 days | 4% |
| Marie Toulemonde | 10/10 | 3877 days | 4% |
| Mark | 7/10 | 3880 days | 3% |
| Daniel Robledo | 8/10 | 3899 days | 3% |
| Maria Camen Santos Lopez | 9/10 | 3899 days | 3% |
| Mara | 9/10 | 3900 days | 3% |
| Andrea Morello | 7/10 | 3900 days | 3% |
| Maria = Moller Hansen | 9/10 | 3909 days | 3% |
| Simon Tanguy | 9/10 | 3917 days | 3% |
| Gassat | 4/10 | 3920 days | 2% |
| Lena Jensen | 9/10 | 3933 days | 3% |
| Jesper Andersen | 9/10 | 3933 days | 3% |
| Claire Lieval | 9/10 | 3945 days | 3% |
| Pioter Jurkowski | 7/10 | 3957 days | 3% |
| Jesse Farrell | 8/10 | 3966 days | 3% |
| Philipp Haass | 6/10 | 3966 days | 3% |
| Chantal | 10/10 | 3970 days | 3% |
| Ken S | 10/10 | 3988 days | 3% |
| Ron Stenhouse | 6/10 | 4232 days | 1% |
| Elizabeth Stenhouse | 8/10 | 4232 days | 1% |
| Andreas Jarvel | 9/10 | 4246 days | 1% |
| Pete Wilson | 4/10 | 4249 days | 0% |
| Marcel | 7/10 | 4256 days | 1% |
| Maria | 8/10 | 4256 days | 1% |
| Clare Cannon | 8/10 | 4273 days | 1% |
| Sara Omary | 9/10 | 4273 days | 1% |
| S M | 10/10 | 4291 days | 1% |
| Alison Langley | 8/10 | 4335 days | 0% |
| Liam Day | 9/10 | 4339 days | 0% |
| Martyn Kool | 8/10 | 4339 days | 0% |
| Michael Kretzschmar | 9/10 | 4339 days | 0% |
| Marieke | 9/10 | 4339 days | 0% |
| Kevin Desjandino | 10/10 | 4340 days | 0% |
| Sharon Yates | 10/10 | 4341 days | 0% |
| Frans Derks | 8/10 | 4346 days | 0% |
| Alexandra van den Brack | 8/10 | 4350 days | 0% |
| Frank and Suzanne | 8/10 | 4353 days | 0% |
| Erik Funk | 8/10 | 4360 days | 0% |
| tanyap | 4/10 | 4383 days | 2% |
| Rob Klauer | 8/10 | 4616 days | 4% |
| Petr Stepanek | 7/10 | 4620 days | 3% |
| Alan Brady | 9/10 | 4625 days | 4% |
| sidcupjon | 9/10 | 4628 days | 4% |
| Robert & Bridget Holden | 8/10 | 4637 days | 4% |
| Vincent & Lian | 9/10 | 4638 days | 4% |
| Stam | 9/10 | 4639 days | 4% |
| Tim & Judith | 8/10 | 4640 days | 4% |
| Rob Gill | 10/10 | 4641 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4644 days | 4% |
| R Seiferling | 10/10 | 4649 days | 4% |
| Ursi Meier | 9/10 | 4651 days | 4% |
| Thomas Krause | 8/10 | 4651 days | 4% |
| Hugo ten Brink | 8/10 | 4655 days | 4% |
| kiwifrenchy | 10/10 | 4657 days | 4% |
| Katja Klein | 9/10 | 4702 days | 4% |
| Judith | 8/10 | 4708 days | 4% |
| damaca | 10/10 | 4749 days | 4% |
| KarenW | 10/10 | 4810 days | 4% |
| neilqecosse | 9/10 | 4810 days | 4% |
| MeganJane_85 | 1/10 | 4933 days | 1% |
| Marcus | 9/10 | 4953 days | 4% |
| Lisa Milton | 10/10 | 4956 days | 4% |
| Ken Talan | 10/10 | 4959 days | 4% |
| Alita Smith | 9/10 | 4966 days | 4% |
| Leroy Dimitri | 10/10 | 4976 days | 4% |
| Mr & Mrs Palmer | 9/10 | 4980 days | 4% |
| Sayaka | 10/10 | 4980 days | 4% |
| Stoop | 8/10 | 4980 days | 4% |
| Jacob | 9/10 | 4981 days | 4% |
| Maike | 9/10 | 4982 days | 4% |
| Kauzta | 10/10 | 4982 days | 4% |
| Laura Malins | 8/10 | 4984 days | 4% |
| K & J Overton | 8/10 | 4988 days | 4% |
| Betten | 10/10 | 4993 days | 4% |
| taniadeanryanbrittany | 8/10 | 4994 days | 4% |
| Nicolas | 7/10 | 4995 days | 3% |
| Lenore Dejong | 9/10 | 4996 days | 4% |
| Manu & Gabi | 10/10 | 4999 days | 4% |
| Laura Hayes | 10/10 | 5009 days | 4% |
| Maite Severins | 7/10 | 5013 days | 3% |
| Helen Keighley | 10/10 | 5014 days | 4% |
| Ryan Tull | 10/10 | 5017 days | 4% |
| Calvin Parsons | 8/10 | 5022 days | 4% |
| Christian Foerster | 7/10 | 5022 days | 3% |
| Kristie | 10/10 | 5045 days | 4% |
| elpo | 9/10 | 5267 days | 4% |
| Baumgarten | 8/10 | 5295 days | 4% |
| Stephen M | 7/10 | 5340 days | 3% |
| Corine van Been | 8/10 | 5341 days | 4% |
| s_butler | 10/10 | 5347 days | 4% |
| Benedict Fluthman | 6/10 | 5349 days | 3% |
| Peter Schmidt | 5/10 | 5359 days | 3% |
| Nicky and Andy Prescott | 10/10 | 5361 days | 4% |
| Jackie | 9/10 | 5378 days | 4% |
| Vincente Garrido | 8/10 | 5382 days | 4% |
| Keith Wilde | 10/10 | 5382 days | 4% |
| Ian E | 8/10 | 5383 days | 4% |
| kate | 5/10 | 5384 days | 3% |
| Rob | 8/10 | 5385 days | 4% |
| emily walters | 10/10 | 5387 days | 4% |
| Peter Ortner | 9/10 | 5396 days | 4% |
| Nigel Armstrong | 10/10 | 5398 days | 4% |
| Grainne Ahern | 4/10 | 5418 days | 2% |
| Chidlebyte | 10/10 | 5418 days | 4% |
| gabei | 7/10 | 5433 days | 3% |
| mariak | 7/10 | 5435 days | 3% |
| marijad | 10/10 | 5437 days | 4% |
| Paul Nugent | 8/10 | 5449 days | 4% |
| Misha | 10/10 | 5449 days | 4% |
| Alan Riley | 8/10 | 5461 days | 4% |
| Ann Riley | 8/10 | 5461 days | 4% |
| Eimear Doyle | 9/10 | 5461 days | 4% |
| MV Vroenhoven | 10/10 | 5464 days | 4% |
| Sara Reekmans | 9/10 | 5472 days | 4% |
| Emily and Alex | 9/10 | 5476 days | 4% |
| neilchelt | 10/10 | 5479 days | 4% |
| jank | 10/10 | 5540 days | 4% |
| alanvn | 9/10 | 5562 days | 4% |
| bogaard | 10/10 | 5575 days | 4% |
| lorah | 10/10 | 5583 days | 4% |
| joevw | 9/10 | 5648 days | 4% |
| OliverG1 | 8/10 | 5681 days | 4% |
| Tim_P | 6/10 | 5690 days | 3% |
| Nathalie | 8/10 | 5690 days | 4% |
| Sofie | 9/10 | 5693 days | 4% |
| ElissaH | 10/10 | 5695 days | 4% |
| KjellR | 9/10 | 5695 days | 4% |
| BonnieH | 9/10 | 5695 days | 4% |
| CharityW | 8/10 | 5695 days | 4% |
| Paul | 10/10 | 5696 days | 4% |
| eskim1018 | 9/10 | 5704 days | 4% |
| ChrisD | 10/10 | 5709 days | 4% |
| Christian Moll | 9/10 | 5709 days | 4% |
| david | 10/10 | 5709 days | 4% |
| Doll | 10/10 | 5716 days | 4% |
| A | 10/10 | 5724 days | 4% |
| Tolsten | 10/10 | 5724 days | 4% |
| GaryW | 8/10 | 5728 days | 4% |
| ElizabethF | 9/10 | 5728 days | 4% |
| Claudia | 4/10 | 5729 days | 2% |
| Jason | 7/10 | 5732 days | 3% |
| John | 8/10 | 5734 days | 4% |
| Hans | 8/10 | 5741 days | 4% |
| Carly | 7/10 | 5743 days | 3% |
| Jeffrey C | 10/10 | 5752 days | 4% |
| SueB | 10/10 | 5752 days | 4% |
| Dalit | 10/10 | 5759 days | 4% |
| Jon | 10/10 | 5764 days | 4% |
| Kathrin | 9/10 | 5766 days | 4% |
| Oliver | 8/10 | 5767 days | 4% |
| Patrick | 8/10 | 5769 days | 4% |
| Andrew | 8/10 | 5769 days | 4% |
| Graham | 6/10 | 5778 days | 3% |
| Maria | 10/10 | 5805 days | 4% |
| Jordi | 6/10 | 5813 days | 3% |
| nicole | 10/10 | 5815 days | 4% |
| Rowan | 9/10 | 5838 days | 4% |
| abby | 9/10 | 5850 days | 4% |
| Andrew | 9/10 | 5860 days | 4% |
| Anna | 10/10 | 5890 days | 4% |
| Atsuko | 8/10 | 5899 days | 4% |
| Trina | 10/10 | 5917 days | 4% |
| Terri Scott | 10/10 | 5928 days | 4% |
| Brian | 10/10 | 5941 days | 4% |
| Wolfgang | 8/10 | 5965 days | 4% |
| Gorka Rojas | 9/10 | 5965 days | 4% |
| Ashlee Roberts | 10/10 | 5990 days | 4% |
| Corin Kraft | 10/10 | 6035 days | 4% |
| Anke | 9/10 | 6043 days | 4% |
| Olga | 7/10 | 6059 days | 3% |
| Ben | 8/10 | 6064 days | 4% |
| Chris | 7/10 | 6070 days | 3% |
| Elizabeth Woodruff | 5/10 | 6073 days | 3% |
| Sandra Verbaarschot | 10/10 | 6073 days | 4% |
| Denise | 10/10 | 6076 days | 4% |
| Lisa Jones | 10/10 | 6080 days | 4% |
| Richard Anthony | 8/10 | 6080 days | 4% |
| Renske Tehurne | 8/10 | 6084 days | 4% |
| Robert | 10/10 | 6085 days | 4% |
| Elise | 10/10 | 6085 days | 4% |
| Fung | 10/10 | 6085 days | 4% |
| Omri Hasson | 9/10 | 6090 days | 4% |
| Aharon | 10/10 | 6091 days | 4% |
| Sue | 8/10 | 6097 days | 4% |
| Ondrej Kacena | 8/10 | 6104 days | 4% |
| Laurie | 8/10 | 6104 days | 4% |
| Eric P | 10/10 | 6112 days | 4% |
| Alex | 8/10 | 6121 days | 4% |
| Natalie | 10/10 | 6133 days | 4% |
| Paul Cowie | 7/10 | 6168 days | 3% |
| Ard | 8/10 | 6168 days | 4% |
| Gabriel Faber | 8/10 | 6168 days | 4% |
| Michael | 8/10 | 6178 days | 4% |
| purplekat99 | 8/10 | 6180 days | 4% |
| Wendy Williams | 9/10 | 6185 days | 4% |
| MrsWesley | 6/10 | 6420 days | 3% |
| John | 7/10 | 6426 days | 3% |
| Heike | 9/10 | 6433 days | 4% |
| Colin Sinclair | 10/10 | 6434 days | 4% |
| Angela Shearer | 8/10 | 6434 days | 4% |
| Loic | 9/10 | 6458 days | 4% |
| Reggie | 9/10 | 6459 days | 4% |
| FluerBlum | 8/10 | 6471 days | 4% |
| Hermann | 10/10 | 6472 days | 4% |
| Franz-Josef | 9/10 | 6475 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
-3.87% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 50 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 | -3.81% |
| 198 | -3.83% |
| 199 | -3.85% |
| 200 | -3.87% |
| 201 | -3.89% |
| 202 | -3.91% |
| 203 | -3.93% |
| … | … |
Balancing Adjustment
1.82% 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
87%
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.