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
87.47%
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 | 1690 days | 100% |
| Mona Uttendorf | 10/10 | 3370 days | 33% |
| Sebastian Braun | 10/10 | 3375 days | 32% |
| Tanya Davies | 10/10 | 3424 days | 31% |
| Danielle Stam | 7/10 | 3678 days | 21% |
| Carmen | 10/10 | 3994 days | 12% |
| Claudia Hillebrand | 4/10 | 4342 days | 1% |
| Max Backelandt | 9/10 | 4348 days | 1% |
| Marie Toulemonde | 10/10 | 4348 days | 1% |
| Mark | 7/10 | 4351 days | 1% |
| Daniel Robledo | 8/10 | 4370 days | 0% |
| Maria Camen Santos Lopez | 9/10 | 4370 days | 0% |
| Mara | 9/10 | 4371 days | 0% |
| Andrea Morello | 7/10 | 4371 days | 0% |
| Maria = Moller Hansen | 9/10 | 4380 days | 16% |
| Simon Tanguy | 9/10 | 4388 days | 16% |
| Gassat | 4/10 | 4391 days | 11% |
| Lena Jensen | 9/10 | 4404 days | 16% |
| Jesper Andersen | 9/10 | 4404 days | 16% |
| Claire Lieval | 9/10 | 4416 days | 16% |
| Pioter Jurkowski | 7/10 | 4428 days | 15% |
| Jesse Farrell | 8/10 | 4437 days | 16% |
| Philipp Haass | 6/10 | 4437 days | 14% |
| Chantal | 10/10 | 4441 days | 16% |
| Ken S | 10/10 | 4459 days | 16% |
| Ron Stenhouse | 6/10 | 4703 days | 14% |
| Elizabeth Stenhouse | 8/10 | 4703 days | 16% |
| Andreas Jarvel | 9/10 | 4717 days | 16% |
| Pete Wilson | 4/10 | 4720 days | 11% |
| Marcel | 7/10 | 4727 days | 15% |
| Maria | 8/10 | 4727 days | 16% |
| Clare Cannon | 8/10 | 4744 days | 16% |
| Sara Omary | 9/10 | 4744 days | 16% |
| S M | 10/10 | 4762 days | 16% |
| Alison Langley | 8/10 | 4806 days | 16% |
| Liam Day | 9/10 | 4810 days | 16% |
| Martyn Kool | 8/10 | 4810 days | 16% |
| Michael Kretzschmar | 9/10 | 4810 days | 16% |
| Marieke | 9/10 | 4810 days | 16% |
| Kevin Desjandino | 10/10 | 4811 days | 16% |
| Sharon Yates | 10/10 | 4812 days | 16% |
| Frans Derks | 8/10 | 4817 days | 16% |
| Alexandra van den Brack | 8/10 | 4821 days | 16% |
| Frank and Suzanne | 8/10 | 4824 days | 16% |
| Erik Funk | 8/10 | 4831 days | 16% |
| tanyap | 4/10 | 4854 days | 11% |
| Rob Klauer | 8/10 | 5087 days | 16% |
| Petr Stepanek | 7/10 | 5091 days | 15% |
| Alan Brady | 9/10 | 5096 days | 16% |
| sidcupjon | 9/10 | 5099 days | 16% |
| Robert & Bridget Holden | 8/10 | 5108 days | 16% |
| Vincent & Lian | 9/10 | 5109 days | 16% |
| Stam | 9/10 | 5110 days | 16% |
| Tim & Judith | 8/10 | 5111 days | 16% |
| Rob Gill | 10/10 | 5112 days | 16% |
| Cindy & Glen Kerunsky | 10/10 | 5115 days | 16% |
| R Seiferling | 10/10 | 5120 days | 16% |
| Ursi Meier | 9/10 | 5122 days | 16% |
| Thomas Krause | 8/10 | 5122 days | 16% |
| Hugo ten Brink | 8/10 | 5126 days | 16% |
| kiwifrenchy | 10/10 | 5128 days | 16% |
| Katja Klein | 9/10 | 5173 days | 16% |
| Judith | 8/10 | 5179 days | 16% |
| damaca | 10/10 | 5220 days | 16% |
| KarenW | 10/10 | 5281 days | 16% |
| neilqecosse | 9/10 | 5281 days | 16% |
| MeganJane_85 | 1/10 | 5404 days | 6% |
| Marcus | 9/10 | 5424 days | 16% |
| Lisa Milton | 10/10 | 5427 days | 16% |
| Ken Talan | 10/10 | 5430 days | 16% |
| Alita Smith | 9/10 | 5437 days | 16% |
| Leroy Dimitri | 10/10 | 5447 days | 16% |
| Mr & Mrs Palmer | 9/10 | 5451 days | 16% |
| Sayaka | 10/10 | 5451 days | 16% |
| Stoop | 8/10 | 5451 days | 16% |
| Jacob | 9/10 | 5452 days | 16% |
| Maike | 9/10 | 5453 days | 16% |
| Kauzta | 10/10 | 5453 days | 16% |
| Laura Malins | 8/10 | 5455 days | 16% |
| K & J Overton | 8/10 | 5459 days | 16% |
| Betten | 10/10 | 5464 days | 16% |
| taniadeanryanbrittany | 8/10 | 5465 days | 16% |
| Nicolas | 7/10 | 5466 days | 15% |
| Lenore Dejong | 9/10 | 5467 days | 16% |
| Manu & Gabi | 10/10 | 5470 days | 16% |
| Laura Hayes | 10/10 | 5480 days | 16% |
| Maite Severins | 7/10 | 5484 days | 15% |
| Helen Keighley | 10/10 | 5485 days | 16% |
| Ryan Tull | 10/10 | 5488 days | 16% |
| Calvin Parsons | 8/10 | 5493 days | 16% |
| Christian Foerster | 7/10 | 5493 days | 15% |
| Kristie | 10/10 | 5516 days | 16% |
| elpo | 9/10 | 5738 days | 16% |
| Baumgarten | 8/10 | 5766 days | 16% |
| Stephen M | 7/10 | 5811 days | 15% |
| Corine van Been | 8/10 | 5812 days | 16% |
| s_butler | 10/10 | 5818 days | 16% |
| Benedict Fluthman | 6/10 | 5820 days | 14% |
| Peter Schmidt | 5/10 | 5830 days | 12% |
| Nicky and Andy Prescott | 10/10 | 5832 days | 16% |
| Jackie | 9/10 | 5849 days | 16% |
| Vincente Garrido | 8/10 | 5853 days | 16% |
| Keith Wilde | 10/10 | 5853 days | 16% |
| Ian E | 8/10 | 5854 days | 16% |
| kate | 5/10 | 5855 days | 12% |
| Rob | 8/10 | 5856 days | 16% |
| emily walters | 10/10 | 5858 days | 16% |
| Peter Ortner | 9/10 | 5867 days | 16% |
| Nigel Armstrong | 10/10 | 5869 days | 16% |
| Grainne Ahern | 4/10 | 5889 days | 11% |
| Chidlebyte | 10/10 | 5889 days | 16% |
| gabei | 7/10 | 5904 days | 15% |
| mariak | 7/10 | 5906 days | 15% |
| marijad | 10/10 | 5908 days | 16% |
| Paul Nugent | 8/10 | 5920 days | 16% |
| Misha | 10/10 | 5920 days | 16% |
| Alan Riley | 8/10 | 5932 days | 16% |
| Ann Riley | 8/10 | 5932 days | 16% |
| Eimear Doyle | 9/10 | 5932 days | 16% |
| MV Vroenhoven | 10/10 | 5935 days | 16% |
| Sara Reekmans | 9/10 | 5943 days | 16% |
| Emily and Alex | 9/10 | 5947 days | 16% |
| neilchelt | 10/10 | 5950 days | 16% |
| jank | 10/10 | 6011 days | 16% |
| alanvn | 9/10 | 6033 days | 16% |
| bogaard | 10/10 | 6046 days | 16% |
| lorah | 10/10 | 6054 days | 16% |
| joevw | 9/10 | 6119 days | 16% |
| OliverG1 | 8/10 | 6152 days | 16% |
| Tim_P | 6/10 | 6161 days | 14% |
| Nathalie | 8/10 | 6161 days | 16% |
| Sofie | 9/10 | 6164 days | 16% |
| ElissaH | 10/10 | 6166 days | 16% |
| KjellR | 9/10 | 6166 days | 16% |
| BonnieH | 9/10 | 6166 days | 16% |
| CharityW | 8/10 | 6166 days | 16% |
| Paul | 10/10 | 6168 days | 16% |
| eskim1018 | 9/10 | 6176 days | 16% |
| ChrisD | 10/10 | 6180 days | 16% |
| Christian Moll | 9/10 | 6180 days | 16% |
| david | 10/10 | 6180 days | 16% |
| Doll | 10/10 | 6188 days | 16% |
| A | 10/10 | 6196 days | 16% |
| Tolsten | 10/10 | 6196 days | 16% |
| GaryW | 8/10 | 6199 days | 16% |
| ElizabethF | 9/10 | 6199 days | 16% |
| Claudia | 4/10 | 6201 days | 11% |
| Jason | 7/10 | 6203 days | 15% |
| John | 8/10 | 6206 days | 16% |
| Hans | 8/10 | 6213 days | 16% |
| Carly | 7/10 | 6215 days | 15% |
| Jeffrey C | 10/10 | 6223 days | 16% |
| SueB | 10/10 | 6223 days | 16% |
| Dalit | 10/10 | 6230 days | 16% |
| Jon | 10/10 | 6235 days | 16% |
| Kathrin | 9/10 | 6237 days | 16% |
| Oliver | 8/10 | 6238 days | 16% |
| Patrick | 8/10 | 6241 days | 16% |
| Andrew | 8/10 | 6241 days | 16% |
| Graham | 6/10 | 6250 days | 14% |
| Maria | 10/10 | 6277 days | 16% |
| Jordi | 6/10 | 6285 days | 14% |
| nicole | 10/10 | 6287 days | 16% |
| Rowan | 9/10 | 6310 days | 16% |
| abby | 9/10 | 6321 days | 16% |
| Andrew | 9/10 | 6331 days | 16% |
| Anna | 10/10 | 6362 days | 16% |
| Atsuko | 8/10 | 6371 days | 16% |
| Trina | 10/10 | 6389 days | 16% |
| Terri Scott | 10/10 | 6400 days | 16% |
| Brian | 10/10 | 6413 days | 16% |
| Wolfgang | 8/10 | 6437 days | 16% |
| Gorka Rojas | 9/10 | 6437 days | 16% |
| Ashlee Roberts | 10/10 | 6461 days | 16% |
| Corin Kraft | 10/10 | 6506 days | 16% |
| Anke | 9/10 | 6514 days | 16% |
| Olga | 7/10 | 6530 days | 15% |
| Ben | 8/10 | 6535 days | 16% |
| Chris | 7/10 | 6541 days | 15% |
| Elizabeth Woodruff | 5/10 | 6544 days | 12% |
| Sandra Verbaarschot | 10/10 | 6544 days | 16% |
| Denise | 10/10 | 6547 days | 16% |
| Lisa Jones | 10/10 | 6551 days | 16% |
| Richard Anthony | 8/10 | 6551 days | 16% |
| Renske Tehurne | 8/10 | 6555 days | 16% |
| Robert | 10/10 | 6556 days | 16% |
| Elise | 10/10 | 6556 days | 16% |
| Fung | 10/10 | 6556 days | 16% |
| Omri Hasson | 9/10 | 6561 days | 16% |
| Aharon | 10/10 | 6562 days | 16% |
| Sue | 8/10 | 6568 days | 16% |
| Ondrej Kacena | 8/10 | 6575 days | 16% |
| Laurie | 8/10 | 6575 days | 16% |
| Eric P | 10/10 | 6583 days | 16% |
| Alex | 8/10 | 6592 days | 16% |
| Natalie | 10/10 | 6604 days | 16% |
| Paul Cowie | 7/10 | 6639 days | 15% |
| Ard | 8/10 | 6639 days | 16% |
| Gabriel Faber | 8/10 | 6639 days | 16% |
| Michael | 8/10 | 6649 days | 16% |
| purplekat99 | 8/10 | 6651 days | 16% |
| Wendy Williams | 9/10 | 6656 days | 16% |
| MrsWesley | 6/10 | 6891 days | 14% |
| John | 7/10 | 6897 days | 15% |
| Heike | 9/10 | 6904 days | 16% |
| Colin Sinclair | 10/10 | 6905 days | 16% |
| Angela Shearer | 8/10 | 6905 days | 16% |
| Loic | 9/10 | 6929 days | 16% |
| Reggie | 9/10 | 6930 days | 16% |
| FluerBlum | 8/10 | 6942 days | 16% |
| Hermann | 10/10 | 6943 days | 16% |
| Franz-Josef | 9/10 | 6946 days | 16% |
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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 52 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 | -4.09% |
| 198 | -4.11% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.19% |
| 203 | -4.22% |
| … | … |
Balancing Adjustment
2.18% 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
85%
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.