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.
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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
88.11%
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 | 1373 days | 100% |
| Mona Uttendorf | 10/10 | 3053 days | 14% |
| Sebastian Braun | 10/10 | 3058 days | 14% |
| Tanya Davies | 10/10 | 3106 days | 13% |
| Danielle Stam | 7/10 | 3361 days | 9% |
| Carmen | 10/10 | 3677 days | 6% |
| Claudia Hillebrand | 4/10 | 4025 days | 0% |
| Max Backelandt | 9/10 | 4031 days | 2% |
| Marie Toulemonde | 10/10 | 4031 days | 2% |
| Mark | 7/10 | 4034 days | 1% |
| Daniel Robledo | 8/10 | 4053 days | 1% |
| Maria Camen Santos Lopez | 9/10 | 4053 days | 1% |
| Mara | 9/10 | 4054 days | 1% |
| Andrea Morello | 7/10 | 4054 days | 1% |
| Maria = Moller Hansen | 9/10 | 4063 days | 1% |
| Simon Tanguy | 9/10 | 4071 days | 1% |
| Gassat | 4/10 | 4074 days | 0% |
| Lena Jensen | 9/10 | 4087 days | 1% |
| Jesper Andersen | 9/10 | 4087 days | 1% |
| Claire Lieval | 9/10 | 4099 days | 1% |
| Pioter Jurkowski | 7/10 | 4111 days | 1% |
| Jesse Farrell | 8/10 | 4120 days | 1% |
| Philipp Haass | 6/10 | 4120 days | 0% |
| Chantal | 10/10 | 4124 days | 1% |
| Ken S | 10/10 | 4142 days | 0% |
| Ron Stenhouse | 6/10 | 4386 days | 3% |
| Elizabeth Stenhouse | 8/10 | 4386 days | 4% |
| Andreas Jarvel | 9/10 | 4400 days | 4% |
| Pete Wilson | 4/10 | 4403 days | 2% |
| Marcel | 7/10 | 4410 days | 3% |
| Maria | 8/10 | 4410 days | 4% |
| Clare Cannon | 8/10 | 4427 days | 4% |
| Sara Omary | 9/10 | 4427 days | 4% |
| S M | 10/10 | 4445 days | 4% |
| Alison Langley | 8/10 | 4489 days | 4% |
| Liam Day | 9/10 | 4493 days | 4% |
| Martyn Kool | 8/10 | 4493 days | 4% |
| Michael Kretzschmar | 9/10 | 4493 days | 4% |
| Marieke | 9/10 | 4493 days | 4% |
| Kevin Desjandino | 10/10 | 4494 days | 4% |
| Sharon Yates | 10/10 | 4495 days | 4% |
| Frans Derks | 8/10 | 4500 days | 4% |
| Alexandra van den Brack | 8/10 | 4504 days | 4% |
| Frank and Suzanne | 8/10 | 4507 days | 4% |
| Erik Funk | 8/10 | 4514 days | 4% |
| tanyap | 4/10 | 4537 days | 2% |
| Rob Klauer | 8/10 | 4770 days | 4% |
| Petr Stepanek | 7/10 | 4774 days | 3% |
| Alan Brady | 9/10 | 4779 days | 4% |
| sidcupjon | 9/10 | 4782 days | 4% |
| Robert & Bridget Holden | 8/10 | 4791 days | 4% |
| Vincent & Lian | 9/10 | 4792 days | 4% |
| Stam | 9/10 | 4793 days | 4% |
| Tim & Judith | 8/10 | 4794 days | 4% |
| Rob Gill | 10/10 | 4795 days | 4% |
| Cindy & Glen Kerunsky | 10/10 | 4798 days | 4% |
| R Seiferling | 10/10 | 4803 days | 4% |
| Ursi Meier | 9/10 | 4805 days | 4% |
| Thomas Krause | 8/10 | 4805 days | 4% |
| Hugo ten Brink | 8/10 | 4809 days | 4% |
| kiwifrenchy | 10/10 | 4811 days | 4% |
| Katja Klein | 9/10 | 4856 days | 4% |
| Judith | 8/10 | 4862 days | 4% |
| damaca | 10/10 | 4903 days | 4% |
| KarenW | 10/10 | 4964 days | 4% |
| neilqecosse | 9/10 | 4964 days | 4% |
| MeganJane_85 | 1/10 | 5087 days | 0% |
| Marcus | 9/10 | 5107 days | 4% |
| Lisa Milton | 10/10 | 5110 days | 4% |
| Ken Talan | 10/10 | 5113 days | 4% |
| Alita Smith | 9/10 | 5120 days | 4% |
| Leroy Dimitri | 10/10 | 5130 days | 4% |
| Mr & Mrs Palmer | 9/10 | 5134 days | 4% |
| Sayaka | 10/10 | 5134 days | 4% |
| Stoop | 8/10 | 5134 days | 4% |
| Jacob | 9/10 | 5135 days | 4% |
| Maike | 9/10 | 5136 days | 4% |
| Kauzta | 10/10 | 5136 days | 4% |
| Laura Malins | 8/10 | 5138 days | 4% |
| K & J Overton | 8/10 | 5142 days | 4% |
| Betten | 10/10 | 5147 days | 4% |
| taniadeanryanbrittany | 8/10 | 5148 days | 4% |
| Nicolas | 7/10 | 5149 days | 3% |
| Lenore Dejong | 9/10 | 5150 days | 4% |
| Manu & Gabi | 10/10 | 5153 days | 4% |
| Laura Hayes | 10/10 | 5163 days | 4% |
| Maite Severins | 7/10 | 5167 days | 3% |
| Helen Keighley | 10/10 | 5168 days | 4% |
| Ryan Tull | 10/10 | 5171 days | 4% |
| Calvin Parsons | 8/10 | 5176 days | 4% |
| Christian Foerster | 7/10 | 5176 days | 3% |
| Kristie | 10/10 | 5199 days | 4% |
| elpo | 9/10 | 5421 days | 4% |
| Baumgarten | 8/10 | 5449 days | 4% |
| Stephen M | 7/10 | 5494 days | 3% |
| Corine van Been | 8/10 | 5495 days | 4% |
| s_butler | 10/10 | 5501 days | 4% |
| Benedict Fluthman | 6/10 | 5503 days | 3% |
| Peter Schmidt | 5/10 | 5513 days | 2% |
| Nicky and Andy Prescott | 10/10 | 5515 days | 4% |
| Jackie | 9/10 | 5532 days | 4% |
| Vincente Garrido | 8/10 | 5536 days | 4% |
| Keith Wilde | 10/10 | 5536 days | 4% |
| Ian E | 8/10 | 5537 days | 4% |
| kate | 5/10 | 5538 days | 2% |
| Rob | 8/10 | 5539 days | 4% |
| emily walters | 10/10 | 5541 days | 4% |
| Peter Ortner | 9/10 | 5550 days | 4% |
| Nigel Armstrong | 10/10 | 5552 days | 4% |
| Grainne Ahern | 4/10 | 5572 days | 2% |
| Chidlebyte | 10/10 | 5572 days | 4% |
| gabei | 7/10 | 5587 days | 3% |
| mariak | 7/10 | 5589 days | 3% |
| marijad | 10/10 | 5591 days | 4% |
| Paul Nugent | 8/10 | 5603 days | 4% |
| Misha | 10/10 | 5603 days | 4% |
| Alan Riley | 8/10 | 5615 days | 4% |
| Ann Riley | 8/10 | 5615 days | 4% |
| Eimear Doyle | 9/10 | 5615 days | 4% |
| MV Vroenhoven | 10/10 | 5618 days | 4% |
| Sara Reekmans | 9/10 | 5626 days | 4% |
| Emily and Alex | 9/10 | 5630 days | 4% |
| neilchelt | 10/10 | 5633 days | 4% |
| jank | 10/10 | 5694 days | 4% |
| alanvn | 9/10 | 5716 days | 4% |
| bogaard | 10/10 | 5729 days | 4% |
| lorah | 10/10 | 5737 days | 4% |
| joevw | 9/10 | 5802 days | 4% |
| OliverG1 | 8/10 | 5835 days | 4% |
| Tim_P | 6/10 | 5844 days | 3% |
| Nathalie | 8/10 | 5844 days | 4% |
| Sofie | 9/10 | 5847 days | 4% |
| ElissaH | 10/10 | 5849 days | 4% |
| KjellR | 9/10 | 5849 days | 4% |
| BonnieH | 9/10 | 5849 days | 4% |
| CharityW | 8/10 | 5849 days | 4% |
| Paul | 10/10 | 5850 days | 4% |
| eskim1018 | 9/10 | 5858 days | 4% |
| ChrisD | 10/10 | 5863 days | 4% |
| Christian Moll | 9/10 | 5863 days | 4% |
| david | 10/10 | 5863 days | 4% |
| Doll | 10/10 | 5870 days | 4% |
| A | 10/10 | 5878 days | 4% |
| Tolsten | 10/10 | 5878 days | 4% |
| GaryW | 8/10 | 5882 days | 4% |
| ElizabethF | 9/10 | 5882 days | 4% |
| Claudia | 4/10 | 5883 days | 2% |
| Jason | 7/10 | 5886 days | 3% |
| John | 8/10 | 5888 days | 4% |
| Hans | 8/10 | 5895 days | 4% |
| Carly | 7/10 | 5897 days | 3% |
| Jeffrey C | 10/10 | 5906 days | 4% |
| SueB | 10/10 | 5906 days | 4% |
| Dalit | 10/10 | 5913 days | 4% |
| Jon | 10/10 | 5918 days | 4% |
| Kathrin | 9/10 | 5920 days | 4% |
| Oliver | 8/10 | 5921 days | 4% |
| Patrick | 8/10 | 5923 days | 4% |
| Andrew | 8/10 | 5923 days | 4% |
| Graham | 6/10 | 5932 days | 3% |
| Maria | 10/10 | 5959 days | 4% |
| Jordi | 6/10 | 5967 days | 3% |
| nicole | 10/10 | 5969 days | 4% |
| Rowan | 9/10 | 5992 days | 4% |
| abby | 9/10 | 6004 days | 4% |
| Andrew | 9/10 | 6014 days | 4% |
| Anna | 10/10 | 6044 days | 4% |
| Atsuko | 8/10 | 6053 days | 4% |
| Trina | 10/10 | 6071 days | 4% |
| Terri Scott | 10/10 | 6082 days | 4% |
| Brian | 10/10 | 6095 days | 4% |
| Wolfgang | 8/10 | 6119 days | 4% |
| Gorka Rojas | 9/10 | 6119 days | 4% |
| Ashlee Roberts | 10/10 | 6144 days | 4% |
| Corin Kraft | 10/10 | 6189 days | 4% |
| Anke | 9/10 | 6197 days | 4% |
| Olga | 7/10 | 6213 days | 3% |
| Ben | 8/10 | 6218 days | 4% |
| Chris | 7/10 | 6224 days | 3% |
| Elizabeth Woodruff | 5/10 | 6227 days | 2% |
| Sandra Verbaarschot | 10/10 | 6227 days | 4% |
| Denise | 10/10 | 6230 days | 4% |
| Lisa Jones | 10/10 | 6234 days | 4% |
| Richard Anthony | 8/10 | 6234 days | 4% |
| Renske Tehurne | 8/10 | 6238 days | 4% |
| Robert | 10/10 | 6239 days | 4% |
| Elise | 10/10 | 6239 days | 4% |
| Fung | 10/10 | 6239 days | 4% |
| Omri Hasson | 9/10 | 6244 days | 4% |
| Aharon | 10/10 | 6245 days | 4% |
| Sue | 8/10 | 6251 days | 4% |
| Ondrej Kacena | 8/10 | 6258 days | 4% |
| Laurie | 8/10 | 6258 days | 4% |
| Eric P | 10/10 | 6266 days | 4% |
| Alex | 8/10 | 6275 days | 4% |
| Natalie | 10/10 | 6287 days | 4% |
| Paul Cowie | 7/10 | 6322 days | 3% |
| Ard | 8/10 | 6322 days | 4% |
| Gabriel Faber | 8/10 | 6322 days | 4% |
| Michael | 8/10 | 6332 days | 4% |
| purplekat99 | 8/10 | 6334 days | 4% |
| Wendy Williams | 9/10 | 6339 days | 4% |
| MrsWesley | 6/10 | 6574 days | 3% |
| John | 7/10 | 6580 days | 3% |
| Heike | 9/10 | 6587 days | 4% |
| Colin Sinclair | 10/10 | 6588 days | 4% |
| Angela Shearer | 8/10 | 6588 days | 4% |
| Loic | 9/10 | 6612 days | 4% |
| Reggie | 9/10 | 6613 days | 4% |
| FluerBlum | 8/10 | 6625 days | 4% |
| Hermann | 10/10 | 6626 days | 4% |
| Franz-Josef | 9/10 | 6629 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
-3.68% 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 | -3.63% |
| 198 | -3.65% |
| 199 | -3.66% |
| 200 | -3.68% |
| 201 | -3.70% |
| 202 | -3.72% |
| 203 | -3.74% |
| … | … |
Balancing Adjustment
1.94% 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.