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 | 1376 days | 100% |
| Mona Uttendorf | 10/10 | 3056 days | 14% |
| Sebastian Braun | 10/10 | 3061 days | 14% |
| Tanya Davies | 10/10 | 3109 days | 13% |
| Danielle Stam | 7/10 | 3364 days | 9% |
| Carmen | 10/10 | 3680 days | 6% |
| Claudia Hillebrand | 4/10 | 4028 days | 0% |
| Max Backelandt | 9/10 | 4034 days | 2% |
| Marie Toulemonde | 10/10 | 4034 days | 2% |
| Mark | 7/10 | 4037 days | 1% |
| Daniel Robledo | 8/10 | 4056 days | 1% |
| Maria Camen Santos Lopez | 9/10 | 4056 days | 1% |
| Mara | 9/10 | 4057 days | 1% |
| Andrea Morello | 7/10 | 4057 days | 1% |
| Maria = Moller Hansen | 9/10 | 4066 days | 1% |
| Simon Tanguy | 9/10 | 4074 days | 1% |
| Gassat | 4/10 | 4077 days | 0% |
| Lena Jensen | 9/10 | 4090 days | 1% |
| Jesper Andersen | 9/10 | 4090 days | 1% |
| Claire Lieval | 9/10 | 4102 days | 1% |
| Pioter Jurkowski | 7/10 | 4114 days | 1% |
| Jesse Farrell | 8/10 | 4123 days | 1% |
| Philipp Haass | 6/10 | 4123 days | 0% |
| Chantal | 10/10 | 4127 days | 1% |
| Ken S | 10/10 | 4145 days | 0% |
| Ron Stenhouse | 6/10 | 4389 days | 3% |
| Elizabeth Stenhouse | 8/10 | 4389 days | 4% |
| Andreas Jarvel | 9/10 | 4403 days | 4% |
| Pete Wilson | 4/10 | 4406 days | 2% |
| Marcel | 7/10 | 4413 days | 3% |
| Maria | 8/10 | 4413 days | 4% |
| Clare Cannon | 8/10 | 4430 days | 4% |
| Sara Omary | 9/10 | 4430 days | 4% |
| S M | 10/10 | 4448 days | 4% |
| Alison Langley | 8/10 | 4492 days | 4% |
| Liam Day | 9/10 | 4496 days | 4% |
| Martyn Kool | 8/10 | 4496 days | 4% |
| Michael Kretzschmar | 9/10 | 4496 days | 4% |
| Marieke | 9/10 | 4496 days | 4% |
| Kevin Desjandino | 10/10 | 4497 days | 4% |
| Sharon Yates | 10/10 | 4498 days | 4% |
| Frans Derks | 8/10 | 4503 days | 4% |
| Alexandra van den Brack | 8/10 | 4507 days | 4% |
| Frank and Suzanne | 8/10 | 4510 days | 4% |
| Erik Funk | 8/10 | 4517 days | 4% |
| tanyap | 4/10 | 4540 days | 2% |
| Rob Klauer | 8/10 | 4773 days | 4% |
| Petr Stepanek | 7/10 | 4777 days | 3% |
| Alan Brady | 9/10 | 4782 days | 4% |
| sidcupjon | 9/10 | 4785 days | 4% |
| Robert & Bridget Holden | 8/10 | 4794 days | 4% |
| Vincent & Lian | 9/10 | 4795 days | 4% |
| Stam | 9/10 | 4796 days | 4% |
| Tim & Judith | 8/10 | 4797 days | 4% |
| Rob Gill | 10/10 | 4798 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4801 days | 4% |
| R Seiferling | 10/10 | 4806 days | 4% |
| Ursi Meier | 9/10 | 4808 days | 4% |
| Thomas Krause | 8/10 | 4808 days | 4% |
| Hugo ten Brink | 8/10 | 4812 days | 4% |
| kiwifrenchy | 10/10 | 4814 days | 4% |
| Katja Klein | 9/10 | 4859 days | 4% |
| Judith | 8/10 | 4865 days | 4% |
| damaca | 10/10 | 4906 days | 4% |
| KarenW | 10/10 | 4967 days | 4% |
| neilqecosse | 9/10 | 4967 days | 4% |
| MeganJane_85 | 1/10 | 5090 days | 0% |
| Marcus | 9/10 | 5110 days | 4% |
| Lisa Milton | 10/10 | 5113 days | 4% |
| Ken Talan | 10/10 | 5116 days | 4% |
| Alita Smith | 9/10 | 5123 days | 4% |
| Leroy Dimitri | 10/10 | 5133 days | 4% |
| Mr & Mrs Palmer | 9/10 | 5137 days | 4% |
| Sayaka | 10/10 | 5137 days | 4% |
| Stoop | 8/10 | 5137 days | 4% |
| Jacob | 9/10 | 5138 days | 4% |
| Maike | 9/10 | 5139 days | 4% |
| Kauzta | 10/10 | 5139 days | 4% |
| Laura Malins | 8/10 | 5141 days | 4% |
| K & J Overton | 8/10 | 5145 days | 4% |
| Betten | 10/10 | 5150 days | 4% |
| taniadeanryanbrittany | 8/10 | 5151 days | 4% |
| Nicolas | 7/10 | 5152 days | 3% |
| Lenore Dejong | 9/10 | 5153 days | 4% |
| Manu & Gabi | 10/10 | 5156 days | 4% |
| Laura Hayes | 10/10 | 5166 days | 4% |
| Maite Severins | 7/10 | 5170 days | 3% |
| Helen Keighley | 10/10 | 5171 days | 4% |
| Ryan Tull | 10/10 | 5174 days | 4% |
| Calvin Parsons | 8/10 | 5179 days | 4% |
| Christian Foerster | 7/10 | 5179 days | 3% |
| Kristie | 10/10 | 5202 days | 4% |
| elpo | 9/10 | 5424 days | 4% |
| Baumgarten | 8/10 | 5452 days | 4% |
| Stephen M | 7/10 | 5497 days | 3% |
| Corine van Been | 8/10 | 5498 days | 4% |
| s_butler | 10/10 | 5504 days | 4% |
| Benedict Fluthman | 6/10 | 5506 days | 3% |
| Peter Schmidt | 5/10 | 5516 days | 2% |
| Nicky and Andy Prescott | 10/10 | 5518 days | 4% |
| Jackie | 9/10 | 5535 days | 4% |
| Vincente Garrido | 8/10 | 5539 days | 4% |
| Keith Wilde | 10/10 | 5539 days | 4% |
| Ian E | 8/10 | 5540 days | 4% |
| kate | 5/10 | 5541 days | 2% |
| Rob | 8/10 | 5542 days | 4% |
| emily walters | 10/10 | 5544 days | 4% |
| Peter Ortner | 9/10 | 5553 days | 4% |
| Nigel Armstrong | 10/10 | 5555 days | 4% |
| Grainne Ahern | 4/10 | 5575 days | 2% |
| Chidlebyte | 10/10 | 5575 days | 4% |
| gabei | 7/10 | 5590 days | 3% |
| mariak | 7/10 | 5592 days | 3% |
| marijad | 10/10 | 5594 days | 4% |
| Paul Nugent | 8/10 | 5606 days | 4% |
| Misha | 10/10 | 5606 days | 4% |
| Alan Riley | 8/10 | 5618 days | 4% |
| Ann Riley | 8/10 | 5618 days | 4% |
| Eimear Doyle | 9/10 | 5618 days | 4% |
| MV Vroenhoven | 10/10 | 5621 days | 4% |
| Sara Reekmans | 9/10 | 5629 days | 4% |
| Emily and Alex | 9/10 | 5633 days | 4% |
| neilchelt | 10/10 | 5636 days | 4% |
| jank | 10/10 | 5697 days | 4% |
| alanvn | 9/10 | 5719 days | 4% |
| bogaard | 10/10 | 5732 days | 4% |
| lorah | 10/10 | 5740 days | 4% |
| joevw | 9/10 | 5805 days | 4% |
| OliverG1 | 8/10 | 5838 days | 4% |
| Tim_P | 6/10 | 5847 days | 3% |
| Nathalie | 8/10 | 5847 days | 4% |
| Sofie | 9/10 | 5850 days | 4% |
| ElissaH | 10/10 | 5852 days | 4% |
| KjellR | 9/10 | 5852 days | 4% |
| BonnieH | 9/10 | 5852 days | 4% |
| CharityW | 8/10 | 5852 days | 4% |
| Paul | 10/10 | 5853 days | 4% |
| eskim1018 | 9/10 | 5861 days | 4% |
| ChrisD | 10/10 | 5866 days | 4% |
| Christian Moll | 9/10 | 5866 days | 4% |
| david | 10/10 | 5866 days | 4% |
| Doll | 10/10 | 5873 days | 4% |
| A | 10/10 | 5881 days | 4% |
| Tolsten | 10/10 | 5881 days | 4% |
| GaryW | 8/10 | 5885 days | 4% |
| ElizabethF | 9/10 | 5885 days | 4% |
| Claudia | 4/10 | 5886 days | 2% |
| Jason | 7/10 | 5889 days | 3% |
| John | 8/10 | 5891 days | 4% |
| Hans | 8/10 | 5898 days | 4% |
| Carly | 7/10 | 5900 days | 3% |
| Jeffrey C | 10/10 | 5909 days | 4% |
| SueB | 10/10 | 5909 days | 4% |
| Dalit | 10/10 | 5916 days | 4% |
| Jon | 10/10 | 5921 days | 4% |
| Kathrin | 9/10 | 5923 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 | 6017 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 | 6147 days | 4% |
| Corin Kraft | 10/10 | 6192 days | 4% |
| Anke | 9/10 | 6200 days | 4% |
| Olga | 7/10 | 6216 days | 3% |
| Ben | 8/10 | 6221 days | 4% |
| Chris | 7/10 | 6227 days | 3% |
| Elizabeth Woodruff | 5/10 | 6230 days | 2% |
| Sandra Verbaarschot | 10/10 | 6230 days | 4% |
| Denise | 10/10 | 6233 days | 4% |
| Lisa Jones | 10/10 | 6237 days | 4% |
| Richard Anthony | 8/10 | 6237 days | 4% |
| Renske Tehurne | 8/10 | 6241 days | 4% |
| Robert | 10/10 | 6242 days | 4% |
| Elise | 10/10 | 6242 days | 4% |
| Fung | 10/10 | 6242 days | 4% |
| Omri Hasson | 9/10 | 6247 days | 4% |
| Aharon | 10/10 | 6248 days | 4% |
| Sue | 8/10 | 6254 days | 4% |
| Ondrej Kacena | 8/10 | 6261 days | 4% |
| Laurie | 8/10 | 6261 days | 4% |
| Eric P | 10/10 | 6269 days | 4% |
| Alex | 8/10 | 6278 days | 4% |
| Natalie | 10/10 | 6290 days | 4% |
| Paul Cowie | 7/10 | 6325 days | 3% |
| Ard | 8/10 | 6325 days | 4% |
| Gabriel Faber | 8/10 | 6325 days | 4% |
| Michael | 8/10 | 6335 days | 4% |
| purplekat99 | 8/10 | 6337 days | 4% |
| Wendy Williams | 9/10 | 6342 days | 4% |
| MrsWesley | 6/10 | 6577 days | 3% |
| John | 7/10 | 6583 days | 3% |
| Heike | 9/10 | 6590 days | 4% |
| Colin Sinclair | 10/10 | 6591 days | 4% |
| Angela Shearer | 8/10 | 6591 days | 4% |
| Loic | 9/10 | 6615 days | 4% |
| Reggie | 9/10 | 6616 days | 4% |
| FluerBlum | 8/10 | 6628 days | 4% |
| Hermann | 10/10 | 6629 days | 4% |
| Franz-Josef | 9/10 | 6632 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
-3.63% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 62 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 | -3.57% |
| 198 | -3.59% |
| 199 | -3.61% |
| 200 | -3.63% |
| 201 | -3.64% |
| 202 | -3.66% |
| 203 | -3.68% |
| … | … |
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.