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
87.79%
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 | 1621 days | 100% |
| Mona Uttendorf | 10/10 | 3301 days | 28% |
| Sebastian Braun | 10/10 | 3306 days | 28% |
| Tanya Davies | 10/10 | 3354 days | 27% |
| Danielle Stam | 7/10 | 3609 days | 19% |
| Carmen | 10/10 | 3925 days | 12% |
| Claudia Hillebrand | 4/10 | 4273 days | 2% |
| Max Backelandt | 9/10 | 4279 days | 2% |
| Marie Toulemonde | 10/10 | 4279 days | 2% |
| Mark | 7/10 | 4282 days | 2% |
| Daniel Robledo | 8/10 | 4301 days | 2% |
| Maria Camen Santos Lopez | 9/10 | 4301 days | 2% |
| Mara | 9/10 | 4302 days | 2% |
| Andrea Morello | 7/10 | 4302 days | 2% |
| Maria = Moller Hansen | 9/10 | 4311 days | 2% |
| Simon Tanguy | 9/10 | 4319 days | 1% |
| Gassat | 4/10 | 4322 days | 1% |
| Lena Jensen | 9/10 | 4335 days | 1% |
| Jesper Andersen | 9/10 | 4335 days | 1% |
| Claire Lieval | 9/10 | 4347 days | 1% |
| Pioter Jurkowski | 7/10 | 4359 days | 0% |
| Jesse Farrell | 8/10 | 4368 days | 0% |
| Philipp Haass | 6/10 | 4368 days | 0% |
| Chantal | 10/10 | 4372 days | 0% |
| Ken S | 10/10 | 4390 days | 13% |
| Ron Stenhouse | 6/10 | 4634 days | 11% |
| Elizabeth Stenhouse | 8/10 | 4634 days | 13% |
| Andreas Jarvel | 9/10 | 4648 days | 13% |
| Pete Wilson | 4/10 | 4651 days | 9% |
| Marcel | 7/10 | 4658 days | 12% |
| Maria | 8/10 | 4658 days | 13% |
| Clare Cannon | 8/10 | 4675 days | 13% |
| Sara Omary | 9/10 | 4675 days | 13% |
| S M | 10/10 | 4693 days | 13% |
| Alison Langley | 8/10 | 4737 days | 13% |
| Liam Day | 9/10 | 4741 days | 13% |
| Martyn Kool | 8/10 | 4741 days | 13% |
| Michael Kretzschmar | 9/10 | 4741 days | 13% |
| Marieke | 9/10 | 4741 days | 13% |
| Kevin Desjandino | 10/10 | 4742 days | 13% |
| Sharon Yates | 10/10 | 4743 days | 13% |
| Frans Derks | 8/10 | 4748 days | 13% |
| Alexandra van den Brack | 8/10 | 4752 days | 13% |
| Frank and Suzanne | 8/10 | 4755 days | 13% |
| Erik Funk | 8/10 | 4762 days | 13% |
| tanyap | 4/10 | 4785 days | 9% |
| Rob Klauer | 8/10 | 5018 days | 13% |
| Petr Stepanek | 7/10 | 5022 days | 12% |
| Alan Brady | 9/10 | 5027 days | 13% |
| sidcupjon | 9/10 | 5030 days | 13% |
| Robert & Bridget Holden | 8/10 | 5039 days | 13% |
| Vincent & Lian | 9/10 | 5040 days | 13% |
| Stam | 9/10 | 5041 days | 13% |
| Tim & Judith | 8/10 | 5042 days | 13% |
| Rob Gill | 10/10 | 5043 days | 13% |
| Cindy & Glen Kerunsky | 10/10 | 5046 days | 13% |
| R Seiferling | 10/10 | 5051 days | 13% |
| Ursi Meier | 9/10 | 5053 days | 13% |
| Thomas Krause | 8/10 | 5053 days | 13% |
| Hugo ten Brink | 8/10 | 5057 days | 13% |
| kiwifrenchy | 10/10 | 5059 days | 13% |
| Katja Klein | 9/10 | 5104 days | 13% |
| Judith | 8/10 | 5110 days | 13% |
| damaca | 10/10 | 5151 days | 13% |
| KarenW | 10/10 | 5212 days | 13% |
| neilqecosse | 9/10 | 5212 days | 13% |
| MeganJane_85 | 1/10 | 5335 days | 5% |
| Marcus | 9/10 | 5355 days | 13% |
| Lisa Milton | 10/10 | 5358 days | 13% |
| Ken Talan | 10/10 | 5361 days | 13% |
| Alita Smith | 9/10 | 5368 days | 13% |
| Leroy Dimitri | 10/10 | 5378 days | 13% |
| Mr & Mrs Palmer | 9/10 | 5382 days | 13% |
| Sayaka | 10/10 | 5382 days | 13% |
| Stoop | 8/10 | 5382 days | 13% |
| Jacob | 9/10 | 5383 days | 13% |
| Maike | 9/10 | 5384 days | 13% |
| Kauzta | 10/10 | 5384 days | 13% |
| Laura Malins | 8/10 | 5386 days | 13% |
| K & J Overton | 8/10 | 5390 days | 13% |
| Betten | 10/10 | 5395 days | 13% |
| taniadeanryanbrittany | 8/10 | 5396 days | 13% |
| Nicolas | 7/10 | 5397 days | 12% |
| Lenore Dejong | 9/10 | 5398 days | 13% |
| Manu & Gabi | 10/10 | 5401 days | 13% |
| Laura Hayes | 10/10 | 5411 days | 13% |
| Maite Severins | 7/10 | 5415 days | 12% |
| Helen Keighley | 10/10 | 5416 days | 13% |
| Ryan Tull | 10/10 | 5419 days | 13% |
| Calvin Parsons | 8/10 | 5424 days | 13% |
| Christian Foerster | 7/10 | 5424 days | 12% |
| Kristie | 10/10 | 5447 days | 13% |
| elpo | 9/10 | 5669 days | 13% |
| Baumgarten | 8/10 | 5697 days | 13% |
| Stephen M | 7/10 | 5742 days | 12% |
| Corine van Been | 8/10 | 5743 days | 13% |
| s_butler | 10/10 | 5749 days | 13% |
| Benedict Fluthman | 6/10 | 5751 days | 11% |
| Peter Schmidt | 5/10 | 5761 days | 10% |
| Nicky and Andy Prescott | 10/10 | 5763 days | 13% |
| Jackie | 9/10 | 5780 days | 13% |
| Vincente Garrido | 8/10 | 5784 days | 13% |
| Keith Wilde | 10/10 | 5784 days | 13% |
| Ian E | 8/10 | 5785 days | 13% |
| kate | 5/10 | 5786 days | 10% |
| Rob | 8/10 | 5787 days | 13% |
| emily walters | 10/10 | 5789 days | 13% |
| Peter Ortner | 9/10 | 5798 days | 13% |
| Nigel Armstrong | 10/10 | 5800 days | 13% |
| Grainne Ahern | 4/10 | 5820 days | 9% |
| Chidlebyte | 10/10 | 5820 days | 13% |
| gabei | 7/10 | 5835 days | 12% |
| mariak | 7/10 | 5837 days | 12% |
| marijad | 10/10 | 5839 days | 13% |
| Paul Nugent | 8/10 | 5851 days | 13% |
| Misha | 10/10 | 5851 days | 13% |
| Alan Riley | 8/10 | 5863 days | 13% |
| Ann Riley | 8/10 | 5863 days | 13% |
| Eimear Doyle | 9/10 | 5863 days | 13% |
| MV Vroenhoven | 10/10 | 5866 days | 13% |
| Sara Reekmans | 9/10 | 5874 days | 13% |
| Emily and Alex | 9/10 | 5878 days | 13% |
| neilchelt | 10/10 | 5881 days | 13% |
| jank | 10/10 | 5942 days | 13% |
| alanvn | 9/10 | 5964 days | 13% |
| bogaard | 10/10 | 5977 days | 13% |
| lorah | 10/10 | 5985 days | 13% |
| joevw | 9/10 | 6050 days | 13% |
| OliverG1 | 8/10 | 6083 days | 13% |
| Tim_P | 6/10 | 6092 days | 11% |
| Nathalie | 8/10 | 6092 days | 13% |
| Sofie | 9/10 | 6095 days | 13% |
| ElissaH | 10/10 | 6097 days | 13% |
| KjellR | 9/10 | 6097 days | 13% |
| BonnieH | 9/10 | 6097 days | 13% |
| CharityW | 8/10 | 6097 days | 13% |
| Paul | 10/10 | 6098 days | 13% |
| eskim1018 | 9/10 | 6106 days | 13% |
| ChrisD | 10/10 | 6111 days | 13% |
| Christian Moll | 9/10 | 6111 days | 13% |
| david | 10/10 | 6111 days | 13% |
| Doll | 10/10 | 6118 days | 13% |
| A | 10/10 | 6126 days | 13% |
| Tolsten | 10/10 | 6126 days | 13% |
| GaryW | 8/10 | 6130 days | 13% |
| ElizabethF | 9/10 | 6130 days | 13% |
| Claudia | 4/10 | 6131 days | 9% |
| Jason | 7/10 | 6134 days | 12% |
| John | 8/10 | 6136 days | 13% |
| Hans | 8/10 | 6143 days | 13% |
| Carly | 7/10 | 6145 days | 12% |
| Jeffrey C | 10/10 | 6154 days | 13% |
| SueB | 10/10 | 6154 days | 13% |
| Dalit | 10/10 | 6161 days | 13% |
| Jon | 10/10 | 6166 days | 13% |
| Kathrin | 9/10 | 6168 days | 13% |
| Oliver | 8/10 | 6169 days | 13% |
| Patrick | 8/10 | 6171 days | 13% |
| Andrew | 8/10 | 6171 days | 13% |
| Graham | 6/10 | 6180 days | 11% |
| Maria | 10/10 | 6207 days | 13% |
| Jordi | 6/10 | 6215 days | 11% |
| nicole | 10/10 | 6217 days | 13% |
| Rowan | 9/10 | 6240 days | 13% |
| abby | 9/10 | 6251 days | 13% |
| Andrew | 9/10 | 6262 days | 13% |
| Anna | 10/10 | 6292 days | 13% |
| Atsuko | 8/10 | 6301 days | 13% |
| Trina | 10/10 | 6319 days | 13% |
| Terri Scott | 10/10 | 6330 days | 13% |
| Brian | 10/10 | 6343 days | 13% |
| Wolfgang | 8/10 | 6367 days | 13% |
| Gorka Rojas | 9/10 | 6367 days | 13% |
| Ashlee Roberts | 10/10 | 6392 days | 13% |
| Corin Kraft | 10/10 | 6437 days | 13% |
| Anke | 9/10 | 6445 days | 13% |
| Olga | 7/10 | 6461 days | 12% |
| Ben | 8/10 | 6466 days | 13% |
| Chris | 7/10 | 6472 days | 12% |
| Elizabeth Woodruff | 5/10 | 6475 days | 10% |
| Sandra Verbaarschot | 10/10 | 6475 days | 13% |
| Denise | 10/10 | 6478 days | 13% |
| Lisa Jones | 10/10 | 6482 days | 13% |
| Richard Anthony | 8/10 | 6482 days | 13% |
| Renske Tehurne | 8/10 | 6486 days | 13% |
| Robert | 10/10 | 6487 days | 13% |
| Elise | 10/10 | 6487 days | 13% |
| Fung | 10/10 | 6487 days | 13% |
| Omri Hasson | 9/10 | 6492 days | 13% |
| Aharon | 10/10 | 6493 days | 13% |
| Sue | 8/10 | 6499 days | 13% |
| Ondrej Kacena | 8/10 | 6506 days | 13% |
| Laurie | 8/10 | 6506 days | 13% |
| Eric P | 10/10 | 6514 days | 13% |
| Alex | 8/10 | 6523 days | 13% |
| Natalie | 10/10 | 6535 days | 13% |
| Paul Cowie | 7/10 | 6570 days | 12% |
| Ard | 8/10 | 6570 days | 13% |
| Gabriel Faber | 8/10 | 6570 days | 13% |
| Michael | 8/10 | 6580 days | 13% |
| purplekat99 | 8/10 | 6582 days | 13% |
| Wendy Williams | 9/10 | 6587 days | 13% |
| MrsWesley | 6/10 | 6822 days | 11% |
| John | 7/10 | 6828 days | 12% |
| Heike | 9/10 | 6835 days | 13% |
| Colin Sinclair | 10/10 | 6836 days | 13% |
| Angela Shearer | 8/10 | 6836 days | 13% |
| Loic | 9/10 | 6860 days | 13% |
| Reggie | 9/10 | 6861 days | 13% |
| FluerBlum | 8/10 | 6873 days | 13% |
| Hermann | 10/10 | 6874 days | 13% |
| Franz-Josef | 9/10 | 6877 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.