Kia ora, 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
87.79%
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 | 1619 days | 100% |
| Mona Uttendorf | 10/10 | 3299 days | 28% |
| Sebastian Braun | 10/10 | 3304 days | 28% |
| Tanya Davies | 10/10 | 3352 days | 27% |
| Danielle Stam | 7/10 | 3607 days | 19% |
| Carmen | 10/10 | 3923 days | 12% |
| Claudia Hillebrand | 4/10 | 4271 days | 2% |
| Max Backelandt | 9/10 | 4277 days | 2% |
| Marie Toulemonde | 10/10 | 4277 days | 2% |
| Mark | 7/10 | 4280 days | 2% |
| Daniel Robledo | 8/10 | 4299 days | 2% |
| Maria Camen Santos Lopez | 9/10 | 4299 days | 2% |
| Mara | 9/10 | 4300 days | 2% |
| Andrea Morello | 7/10 | 4300 days | 2% |
| Maria = Moller Hansen | 9/10 | 4309 days | 2% |
| Simon Tanguy | 9/10 | 4317 days | 1% |
| Gassat | 4/10 | 4320 days | 1% |
| Lena Jensen | 9/10 | 4333 days | 1% |
| Jesper Andersen | 9/10 | 4333 days | 1% |
| Claire Lieval | 9/10 | 4345 days | 1% |
| Pioter Jurkowski | 7/10 | 4357 days | 0% |
| Jesse Farrell | 8/10 | 4366 days | 0% |
| Philipp Haass | 6/10 | 4366 days | 0% |
| Chantal | 10/10 | 4370 days | 0% |
| Ken S | 10/10 | 4388 days | 13% |
| Ron Stenhouse | 6/10 | 4632 days | 11% |
| Elizabeth Stenhouse | 8/10 | 4632 days | 13% |
| Andreas Jarvel | 9/10 | 4646 days | 13% |
| Pete Wilson | 4/10 | 4649 days | 9% |
| Marcel | 7/10 | 4656 days | 12% |
| Maria | 8/10 | 4656 days | 13% |
| Clare Cannon | 8/10 | 4673 days | 13% |
| Sara Omary | 9/10 | 4673 days | 13% |
| S M | 10/10 | 4691 days | 13% |
| Alison Langley | 8/10 | 4735 days | 13% |
| Liam Day | 9/10 | 4739 days | 13% |
| Martyn Kool | 8/10 | 4739 days | 13% |
| Michael Kretzschmar | 9/10 | 4739 days | 13% |
| Marieke | 9/10 | 4739 days | 13% |
| Kevin Desjandino | 10/10 | 4740 days | 13% |
| Sharon Yates | 10/10 | 4741 days | 13% |
| Frans Derks | 8/10 | 4746 days | 13% |
| Alexandra van den Brack | 8/10 | 4750 days | 13% |
| Frank and Suzanne | 8/10 | 4753 days | 13% |
| Erik Funk | 8/10 | 4760 days | 13% |
| tanyap | 4/10 | 4783 days | 9% |
| Rob Klauer | 8/10 | 5016 days | 13% |
| Petr Stepanek | 7/10 | 5020 days | 12% |
| Alan Brady | 9/10 | 5025 days | 13% |
| sidcupjon | 9/10 | 5028 days | 13% |
| Robert & Bridget Holden | 8/10 | 5037 days | 13% |
| Vincent & Lian | 9/10 | 5038 days | 13% |
| Stam | 9/10 | 5039 days | 13% |
| Tim & Judith | 8/10 | 5040 days | 13% |
| Rob Gill | 10/10 | 5041 days | 13% |
| Cindy & Glen Kerunsky | 10/10 | 5044 days | 13% |
| R Seiferling | 10/10 | 5049 days | 13% |
| Ursi Meier | 9/10 | 5051 days | 13% |
| Thomas Krause | 8/10 | 5051 days | 13% |
| Hugo ten Brink | 8/10 | 5055 days | 13% |
| kiwifrenchy | 10/10 | 5057 days | 13% |
| Katja Klein | 9/10 | 5102 days | 13% |
| Judith | 8/10 | 5108 days | 13% |
| damaca | 10/10 | 5149 days | 13% |
| KarenW | 10/10 | 5210 days | 13% |
| neilqecosse | 9/10 | 5210 days | 13% |
| MeganJane_85 | 1/10 | 5333 days | 5% |
| Marcus | 9/10 | 5353 days | 13% |
| Lisa Milton | 10/10 | 5356 days | 13% |
| Ken Talan | 10/10 | 5359 days | 13% |
| Alita Smith | 9/10 | 5366 days | 13% |
| Leroy Dimitri | 10/10 | 5376 days | 13% |
| Mr & Mrs Palmer | 9/10 | 5380 days | 13% |
| Sayaka | 10/10 | 5380 days | 13% |
| Stoop | 8/10 | 5380 days | 13% |
| Jacob | 9/10 | 5381 days | 13% |
| Maike | 9/10 | 5382 days | 13% |
| Kauzta | 10/10 | 5382 days | 13% |
| Laura Malins | 8/10 | 5384 days | 13% |
| K & J Overton | 8/10 | 5388 days | 13% |
| Betten | 10/10 | 5393 days | 13% |
| taniadeanryanbrittany | 8/10 | 5394 days | 13% |
| Nicolas | 7/10 | 5395 days | 12% |
| Lenore Dejong | 9/10 | 5396 days | 13% |
| Manu & Gabi | 10/10 | 5399 days | 13% |
| Laura Hayes | 10/10 | 5409 days | 13% |
| Maite Severins | 7/10 | 5413 days | 12% |
| Helen Keighley | 10/10 | 5414 days | 13% |
| Ryan Tull | 10/10 | 5417 days | 13% |
| Calvin Parsons | 8/10 | 5422 days | 13% |
| Christian Foerster | 7/10 | 5422 days | 12% |
| Kristie | 10/10 | 5445 days | 13% |
| elpo | 9/10 | 5667 days | 13% |
| Baumgarten | 8/10 | 5695 days | 13% |
| Stephen M | 7/10 | 5740 days | 12% |
| Corine van Been | 8/10 | 5741 days | 13% |
| s_butler | 10/10 | 5747 days | 13% |
| Benedict Fluthman | 6/10 | 5749 days | 11% |
| Peter Schmidt | 5/10 | 5759 days | 10% |
| Nicky and Andy Prescott | 10/10 | 5761 days | 13% |
| Jackie | 9/10 | 5778 days | 13% |
| Vincente Garrido | 8/10 | 5782 days | 13% |
| Keith Wilde | 10/10 | 5782 days | 13% |
| Ian E | 8/10 | 5783 days | 13% |
| kate | 5/10 | 5784 days | 10% |
| Rob | 8/10 | 5785 days | 13% |
| emily walters | 10/10 | 5787 days | 13% |
| Peter Ortner | 9/10 | 5796 days | 13% |
| Nigel Armstrong | 10/10 | 5798 days | 13% |
| Grainne Ahern | 4/10 | 5818 days | 9% |
| Chidlebyte | 10/10 | 5818 days | 13% |
| gabei | 7/10 | 5833 days | 12% |
| mariak | 7/10 | 5835 days | 12% |
| marijad | 10/10 | 5837 days | 13% |
| Paul Nugent | 8/10 | 5849 days | 13% |
| Misha | 10/10 | 5849 days | 13% |
| Alan Riley | 8/10 | 5861 days | 13% |
| Ann Riley | 8/10 | 5861 days | 13% |
| Eimear Doyle | 9/10 | 5861 days | 13% |
| MV Vroenhoven | 10/10 | 5864 days | 13% |
| Sara Reekmans | 9/10 | 5872 days | 13% |
| Emily and Alex | 9/10 | 5876 days | 13% |
| neilchelt | 10/10 | 5879 days | 13% |
| jank | 10/10 | 5940 days | 13% |
| alanvn | 9/10 | 5962 days | 13% |
| bogaard | 10/10 | 5975 days | 13% |
| lorah | 10/10 | 5983 days | 13% |
| joevw | 9/10 | 6048 days | 13% |
| OliverG1 | 8/10 | 6081 days | 13% |
| Tim_P | 6/10 | 6090 days | 11% |
| Nathalie | 8/10 | 6090 days | 13% |
| Sofie | 9/10 | 6093 days | 13% |
| ElissaH | 10/10 | 6095 days | 13% |
| KjellR | 9/10 | 6095 days | 13% |
| BonnieH | 9/10 | 6095 days | 13% |
| CharityW | 8/10 | 6095 days | 13% |
| Paul | 10/10 | 6096 days | 13% |
| eskim1018 | 9/10 | 6104 days | 13% |
| ChrisD | 10/10 | 6109 days | 13% |
| Christian Moll | 9/10 | 6109 days | 13% |
| david | 10/10 | 6109 days | 13% |
| Doll | 10/10 | 6116 days | 13% |
| A | 10/10 | 6124 days | 13% |
| Tolsten | 10/10 | 6124 days | 13% |
| GaryW | 8/10 | 6128 days | 13% |
| ElizabethF | 9/10 | 6128 days | 13% |
| Claudia | 4/10 | 6129 days | 9% |
| Jason | 7/10 | 6132 days | 12% |
| John | 8/10 | 6134 days | 13% |
| Hans | 8/10 | 6141 days | 13% |
| Carly | 7/10 | 6143 days | 12% |
| Jeffrey C | 10/10 | 6152 days | 13% |
| SueB | 10/10 | 6152 days | 13% |
| Dalit | 10/10 | 6159 days | 13% |
| Jon | 10/10 | 6164 days | 13% |
| Kathrin | 9/10 | 6166 days | 13% |
| Oliver | 8/10 | 6167 days | 13% |
| Patrick | 8/10 | 6169 days | 13% |
| Andrew | 8/10 | 6169 days | 13% |
| Graham | 6/10 | 6178 days | 11% |
| Maria | 10/10 | 6205 days | 13% |
| Jordi | 6/10 | 6213 days | 11% |
| nicole | 10/10 | 6215 days | 13% |
| Rowan | 9/10 | 6238 days | 13% |
| abby | 9/10 | 6249 days | 13% |
| Andrew | 9/10 | 6260 days | 13% |
| Anna | 10/10 | 6290 days | 13% |
| Atsuko | 8/10 | 6299 days | 13% |
| Trina | 10/10 | 6317 days | 13% |
| Terri Scott | 10/10 | 6328 days | 13% |
| Brian | 10/10 | 6341 days | 13% |
| Wolfgang | 8/10 | 6365 days | 13% |
| Gorka Rojas | 9/10 | 6365 days | 13% |
| Ashlee Roberts | 10/10 | 6390 days | 13% |
| Corin Kraft | 10/10 | 6435 days | 13% |
| Anke | 9/10 | 6443 days | 13% |
| Olga | 7/10 | 6459 days | 12% |
| Ben | 8/10 | 6464 days | 13% |
| Chris | 7/10 | 6470 days | 12% |
| Elizabeth Woodruff | 5/10 | 6473 days | 10% |
| Sandra Verbaarschot | 10/10 | 6473 days | 13% |
| Denise | 10/10 | 6476 days | 13% |
| Lisa Jones | 10/10 | 6480 days | 13% |
| Richard Anthony | 8/10 | 6480 days | 13% |
| Renske Tehurne | 8/10 | 6484 days | 13% |
| Robert | 10/10 | 6485 days | 13% |
| Elise | 10/10 | 6485 days | 13% |
| Fung | 10/10 | 6485 days | 13% |
| Omri Hasson | 9/10 | 6490 days | 13% |
| Aharon | 10/10 | 6491 days | 13% |
| Sue | 8/10 | 6497 days | 13% |
| Ondrej Kacena | 8/10 | 6504 days | 13% |
| Laurie | 8/10 | 6504 days | 13% |
| Eric P | 10/10 | 6512 days | 13% |
| Alex | 8/10 | 6521 days | 13% |
| Natalie | 10/10 | 6533 days | 13% |
| Paul Cowie | 7/10 | 6568 days | 12% |
| Ard | 8/10 | 6568 days | 13% |
| Gabriel Faber | 8/10 | 6568 days | 13% |
| Michael | 8/10 | 6578 days | 13% |
| purplekat99 | 8/10 | 6580 days | 13% |
| Wendy Williams | 9/10 | 6585 days | 13% |
| MrsWesley | 6/10 | 6820 days | 11% |
| John | 7/10 | 6826 days | 12% |
| Heike | 9/10 | 6833 days | 13% |
| Colin Sinclair | 10/10 | 6834 days | 13% |
| Angela Shearer | 8/10 | 6834 days | 13% |
| Loic | 9/10 | 6858 days | 13% |
| Reggie | 9/10 | 6859 days | 13% |
| FluerBlum | 8/10 | 6871 days | 13% |
| Hermann | 10/10 | 6872 days | 13% |
| Franz-Josef | 9/10 | 6875 days | 13% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
2.09% 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.