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
89.08%
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 | 1172 days | 100% |
| Mona Uttendorf | 10/10 | 2852 days | 10% |
| Sebastian Braun | 10/10 | 2857 days | 10% |
| Tanya Davies | 10/10 | 2905 days | 10% |
| Danielle Stam | 7/10 | 3160 days | 7% |
| Carmen | 10/10 | 3476 days | 6% |
| Claudia Hillebrand | 4/10 | 3824 days | 2% |
| Max Backelandt | 9/10 | 3830 days | 3% |
| Marie Toulemonde | 10/10 | 3830 days | 3% |
| Mark | 7/10 | 3833 days | 3% |
| Daniel Robledo | 8/10 | 3852 days | 3% |
| Maria Camen Santos Lopez | 9/10 | 3852 days | 3% |
| Mara | 9/10 | 3853 days | 3% |
| Andrea Morello | 7/10 | 3853 days | 3% |
| Maria = Moller Hansen | 9/10 | 3862 days | 3% |
| Simon Tanguy | 9/10 | 3870 days | 3% |
| Gassat | 4/10 | 3873 days | 2% |
| Lena Jensen | 9/10 | 3886 days | 3% |
| Jesper Andersen | 9/10 | 3886 days | 3% |
| Claire Lieval | 9/10 | 3898 days | 3% |
| Pioter Jurkowski | 7/10 | 3910 days | 3% |
| Jesse Farrell | 8/10 | 3919 days | 3% |
| Philipp Haass | 6/10 | 3919 days | 2% |
| Chantal | 10/10 | 3923 days | 3% |
| Ken S | 10/10 | 3941 days | 3% |
| Ron Stenhouse | 6/10 | 4185 days | 1% |
| Elizabeth Stenhouse | 8/10 | 4185 days | 1% |
| Andreas Jarvel | 9/10 | 4199 days | 1% |
| Pete Wilson | 4/10 | 4202 days | 1% |
| Marcel | 7/10 | 4209 days | 1% |
| Maria | 8/10 | 4209 days | 1% |
| Clare Cannon | 8/10 | 4226 days | 1% |
| Sara Omary | 9/10 | 4226 days | 1% |
| S M | 10/10 | 4244 days | 1% |
| Alison Langley | 8/10 | 4288 days | 0% |
| Liam Day | 9/10 | 4292 days | 0% |
| Martyn Kool | 8/10 | 4292 days | 0% |
| Michael Kretzschmar | 9/10 | 4292 days | 0% |
| Marieke | 9/10 | 4292 days | 0% |
| Kevin Desjandino | 10/10 | 4293 days | 0% |
| Sharon Yates | 10/10 | 4294 days | 0% |
| Frans Derks | 8/10 | 4299 days | 0% |
| Alexandra van den Brack | 8/10 | 4303 days | 0% |
| Frank and Suzanne | 8/10 | 4306 days | 0% |
| Erik Funk | 8/10 | 4313 days | 0% |
| tanyap | 4/10 | 4336 days | 0% |
| Rob Klauer | 8/10 | 4569 days | 3% |
| Petr Stepanek | 7/10 | 4573 days | 3% |
| Alan Brady | 9/10 | 4578 days | 3% |
| sidcupjon | 9/10 | 4581 days | 3% |
| Robert & Bridget Holden | 8/10 | 4590 days | 3% |
| Vincent & Lian | 9/10 | 4591 days | 3% |
| Stam | 9/10 | 4592 days | 3% |
| Tim & Judith | 8/10 | 4593 days | 3% |
| Rob Gill | 10/10 | 4594 days | 3% |
| Cindy & Glen Kerunsky | 10/10 | 4597 days | 3% |
| R Seiferling | 10/10 | 4602 days | 3% |
| Ursi Meier | 9/10 | 4604 days | 3% |
| Thomas Krause | 8/10 | 4604 days | 3% |
| Hugo ten Brink | 8/10 | 4608 days | 3% |
| kiwifrenchy | 10/10 | 4610 days | 3% |
| Katja Klein | 9/10 | 4655 days | 3% |
| Judith | 8/10 | 4661 days | 3% |
| damaca | 10/10 | 4702 days | 3% |
| KarenW | 10/10 | 4763 days | 3% |
| neilqecosse | 9/10 | 4763 days | 3% |
| MeganJane_85 | 1/10 | 4886 days | 1% |
| Marcus | 9/10 | 4906 days | 3% |
| Lisa Milton | 10/10 | 4909 days | 3% |
| Ken Talan | 10/10 | 4912 days | 3% |
| Alita Smith | 9/10 | 4919 days | 3% |
| Leroy Dimitri | 10/10 | 4929 days | 3% |
| Mr & Mrs Palmer | 9/10 | 4933 days | 3% |
| Sayaka | 10/10 | 4933 days | 3% |
| Stoop | 8/10 | 4933 days | 3% |
| Jacob | 9/10 | 4934 days | 3% |
| Maike | 9/10 | 4935 days | 3% |
| Kauzta | 10/10 | 4935 days | 3% |
| Laura Malins | 8/10 | 4937 days | 3% |
| K & J Overton | 8/10 | 4941 days | 3% |
| Betten | 10/10 | 4946 days | 3% |
| taniadeanryanbrittany | 8/10 | 4947 days | 3% |
| Nicolas | 7/10 | 4948 days | 3% |
| Lenore Dejong | 9/10 | 4949 days | 3% |
| Manu & Gabi | 10/10 | 4952 days | 3% |
| Laura Hayes | 10/10 | 4962 days | 3% |
| Maite Severins | 7/10 | 4966 days | 3% |
| Helen Keighley | 10/10 | 4967 days | 3% |
| Ryan Tull | 10/10 | 4970 days | 3% |
| Calvin Parsons | 8/10 | 4975 days | 3% |
| Christian Foerster | 7/10 | 4975 days | 3% |
| Kristie | 10/10 | 4998 days | 3% |
| elpo | 9/10 | 5220 days | 3% |
| Baumgarten | 8/10 | 5248 days | 3% |
| Stephen M | 7/10 | 5293 days | 3% |
| Corine van Been | 8/10 | 5294 days | 3% |
| s_butler | 10/10 | 5300 days | 3% |
| Benedict Fluthman | 6/10 | 5302 days | 3% |
| Peter Schmidt | 5/10 | 5312 days | 2% |
| Nicky and Andy Prescott | 10/10 | 5314 days | 3% |
| Jackie | 9/10 | 5331 days | 3% |
| Vincente Garrido | 8/10 | 5335 days | 3% |
| Keith Wilde | 10/10 | 5335 days | 3% |
| Ian E | 8/10 | 5336 days | 3% |
| kate | 5/10 | 5337 days | 2% |
| Rob | 8/10 | 5338 days | 3% |
| emily walters | 10/10 | 5340 days | 3% |
| Peter Ortner | 9/10 | 5349 days | 3% |
| Nigel Armstrong | 10/10 | 5351 days | 3% |
| Grainne Ahern | 4/10 | 5371 days | 2% |
| Chidlebyte | 10/10 | 5371 days | 3% |
| gabei | 7/10 | 5386 days | 3% |
| mariak | 7/10 | 5388 days | 3% |
| marijad | 10/10 | 5390 days | 3% |
| Paul Nugent | 8/10 | 5402 days | 3% |
| Misha | 10/10 | 5402 days | 3% |
| Alan Riley | 8/10 | 5414 days | 3% |
| Ann Riley | 8/10 | 5414 days | 3% |
| Eimear Doyle | 9/10 | 5414 days | 3% |
| MV Vroenhoven | 10/10 | 5417 days | 3% |
| Sara Reekmans | 9/10 | 5425 days | 3% |
| Emily and Alex | 9/10 | 5429 days | 3% |
| neilchelt | 10/10 | 5432 days | 3% |
| jank | 10/10 | 5493 days | 3% |
| alanvn | 9/10 | 5515 days | 3% |
| bogaard | 10/10 | 5528 days | 3% |
| lorah | 10/10 | 5536 days | 3% |
| joevw | 9/10 | 5601 days | 3% |
| OliverG1 | 8/10 | 5634 days | 3% |
| Tim_P | 6/10 | 5643 days | 3% |
| Nathalie | 8/10 | 5643 days | 3% |
| Sofie | 9/10 | 5646 days | 3% |
| ElissaH | 10/10 | 5648 days | 3% |
| KjellR | 9/10 | 5648 days | 3% |
| BonnieH | 9/10 | 5648 days | 3% |
| CharityW | 8/10 | 5648 days | 3% |
| Paul | 10/10 | 5649 days | 3% |
| eskim1018 | 9/10 | 5657 days | 3% |
| ChrisD | 10/10 | 5662 days | 3% |
| Christian Moll | 9/10 | 5662 days | 3% |
| david | 10/10 | 5662 days | 3% |
| Doll | 10/10 | 5669 days | 3% |
| A | 10/10 | 5677 days | 3% |
| Tolsten | 10/10 | 5677 days | 3% |
| GaryW | 8/10 | 5681 days | 3% |
| ElizabethF | 9/10 | 5681 days | 3% |
| Claudia | 4/10 | 5682 days | 2% |
| Jason | 7/10 | 5685 days | 3% |
| John | 8/10 | 5687 days | 3% |
| Hans | 8/10 | 5694 days | 3% |
| Carly | 7/10 | 5696 days | 3% |
| Jeffrey C | 10/10 | 5705 days | 3% |
| SueB | 10/10 | 5705 days | 3% |
| Dalit | 10/10 | 5712 days | 3% |
| Jon | 10/10 | 5717 days | 3% |
| Kathrin | 9/10 | 5719 days | 3% |
| Oliver | 8/10 | 5720 days | 3% |
| Patrick | 8/10 | 5722 days | 3% |
| Andrew | 8/10 | 5722 days | 3% |
| Graham | 6/10 | 5731 days | 3% |
| Maria | 10/10 | 5758 days | 3% |
| Jordi | 6/10 | 5766 days | 3% |
| nicole | 10/10 | 5768 days | 3% |
| Rowan | 9/10 | 5791 days | 3% |
| abby | 9/10 | 5802 days | 3% |
| Andrew | 9/10 | 5813 days | 3% |
| Anna | 10/10 | 5843 days | 3% |
| Atsuko | 8/10 | 5852 days | 3% |
| Trina | 10/10 | 5870 days | 3% |
| Terri Scott | 10/10 | 5881 days | 3% |
| Brian | 10/10 | 5894 days | 3% |
| Wolfgang | 8/10 | 5918 days | 3% |
| Gorka Rojas | 9/10 | 5918 days | 3% |
| Ashlee Roberts | 10/10 | 5943 days | 3% |
| Corin Kraft | 10/10 | 5988 days | 3% |
| Anke | 9/10 | 5996 days | 3% |
| Olga | 7/10 | 6012 days | 3% |
| Ben | 8/10 | 6017 days | 3% |
| Chris | 7/10 | 6023 days | 3% |
| Elizabeth Woodruff | 5/10 | 6026 days | 2% |
| Sandra Verbaarschot | 10/10 | 6026 days | 3% |
| Denise | 10/10 | 6029 days | 3% |
| Lisa Jones | 10/10 | 6033 days | 3% |
| Richard Anthony | 8/10 | 6033 days | 3% |
| Renske Tehurne | 8/10 | 6037 days | 3% |
| Robert | 10/10 | 6038 days | 3% |
| Elise | 10/10 | 6038 days | 3% |
| Fung | 10/10 | 6038 days | 3% |
| Omri Hasson | 9/10 | 6043 days | 3% |
| Aharon | 10/10 | 6044 days | 3% |
| Sue | 8/10 | 6050 days | 3% |
| Ondrej Kacena | 8/10 | 6057 days | 3% |
| Laurie | 8/10 | 6057 days | 3% |
| Eric P | 10/10 | 6065 days | 3% |
| Alex | 8/10 | 6074 days | 3% |
| Natalie | 10/10 | 6086 days | 3% |
| Paul Cowie | 7/10 | 6121 days | 3% |
| Ard | 8/10 | 6121 days | 3% |
| Gabriel Faber | 8/10 | 6121 days | 3% |
| Michael | 8/10 | 6131 days | 3% |
| purplekat99 | 8/10 | 6133 days | 3% |
| Wendy Williams | 9/10 | 6138 days | 3% |
| MrsWesley | 6/10 | 6373 days | 3% |
| John | 7/10 | 6379 days | 3% |
| Heike | 9/10 | 6386 days | 3% |
| Colin Sinclair | 10/10 | 6387 days | 3% |
| Angela Shearer | 8/10 | 6387 days | 3% |
| Loic | 9/10 | 6411 days | 3% |
| Reggie | 9/10 | 6412 days | 3% |
| FluerBlum | 8/10 | 6424 days | 3% |
| Hermann | 10/10 | 6425 days | 3% |
| Franz-Josef | 9/10 | 6428 days | 3% |
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
-2.94% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 78 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 | -2.89% |
| 198 | -2.91% |
| 199 | -2.92% |
| 200 | -2.94% |
| 201 | -2.95% |
| 202 | -2.97% |
| 203 | -2.98% |
| … | … |
Balancing Adjustment
1.61% 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
88%
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.