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 Franz Josef Glacier Guides.
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.
Franz Josef Glacier Guides
Valid Reviews
314 Valid Reviews
The Franz Josef Glacier Guides experience has a total of 316 reviews. There are 314 valid reviews that are included when calculating the ranking score and 2 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 314 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 76 |
|
24% |
| 9/10 | 90 |
|
29% |
| 8/10 | 84 |
|
27% |
| 7/10 | 36 |
|
11% |
| 6/10 | 14 |
|
4% |
| 5/10 | 8 |
|
3% |
| 4/10 | 2 |
|
1% |
| 3/10 | 3 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
0% |
83.95% Average
The raw data average (mean) for all the Franz Josef Glacier Guides valid reviews is 83.95% and is based on 314 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
281 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 314 valid reviews, the experience has 281 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 281 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 65 |
|
23% |
| 9/10 | 81 |
|
29% |
| 8/10 | 81 |
|
29% |
| 7/10 | 30 |
|
11% |
| 6/10 | 12 |
|
4% |
| 5/10 | 7 |
|
2% |
| 4/10 | 2 |
|
1% |
| 3/10 | 2 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
0% |
83.95% Average
The raw data average (mean) for all the Franz Josef Glacier Guides face-to-face reviews is 83.95% and is based on 281 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
85.13%
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 |
|---|---|---|---|
| Fran and Ben | 10/10 | 2865 days | 100% |
| Jessica Freeland | 10/10 | 2926 days | 96% |
| Nanna Overbeck | 10/10 | 2938 days | 95% |
| Joe Rogers | 9/10 | 3219 days | 75% |
| Nicola Wiggan | 9/10 | 3288 days | 70% |
| Ben McDougal | 10/10 | 3310 days | 70% |
| Maria Schober | 5/10 | 3597 days | 38% |
| Helen Parsons | 1/10 | 3605 days | 18% |
| Elisa Felising | 7/10 | 3605 days | 46% |
| Claudia de Winter | 9/10 | 3917 days | 28% |
| Penny Lee | 9/10 | 3919 days | 28% |
| Jeroen Suijlang | 8/10 | 3919 days | 28% |
| Ludvig Fagerstrom | 8/10 | 3993 days | 23% |
| Marco Schmidt | 10/10 | 4290 days | 3% |
| Christian Schumacher | 10/10 | 4290 days | 3% |
| Jennifer Bramstad | 8/10 | 4310 days | 2% |
| Evelina Johansson | 8/10 | 4310 days | 2% |
| Sofia Anderson | 10/10 | 4310 days | 2% |
| Steve | 5/10 | 4311 days | 1% |
| Janine Kohlgrueler | 9/10 | 4318 days | 1% |
| Fraser Goldsmith | 9/10 | 4335 days | 0% |
| Nigel Leighton | 10/10 | 4389 days | 32% |
| Jonathan Vondette | 7/10 | 4392 days | 29% |
| Andreas and Christine and Nora Busch | 10/10 | 4400 days | 32% |
| lavonc | 3/10 | 4431 days | 16% |
| peterpiper | 10/10 | 4615 days | 32% |
| sandytemp22 | 10/10 | 4645 days | 32% |
| Laura vanGool | 10/10 | 4661 days | 32% |
| Barbara Berkhout | 7/10 | 4661 days | 29% |
| Jurgen Joyce | 8/10 | 4668 days | 31% |
| Carole Carter | 9/10 | 4668 days | 31% |
| Sabrina Germany | 9/10 | 4671 days | 31% |
| J Jmal | 10/10 | 4672 days | 32% |
| Malena | 10/10 | 4676 days | 32% |
| Erik | 10/10 | 4678 days | 32% |
| Marion Hassink | 8/10 | 4682 days | 31% |
| Baas | 8/10 | 4685 days | 31% |
| Barbara | 10/10 | 4686 days | 32% |
| Rebecca Richardson | 8/10 | 4687 days | 31% |
| Andrew Powell | 7/10 | 4687 days | 29% |
| Andy Bridgman | 8/10 | 4690 days | 31% |
| Aoife Lillis | 7/10 | 4693 days | 29% |
| Rainer Schnell | 8/10 | 4697 days | 31% |
| Filsack | 8/10 | 4697 days | 31% |
| Hazel | 10/10 | 4698 days | 32% |
| Frank Waskikowski | 9/10 | 4699 days | 31% |
| Andreas Kristiansen | 9/10 | 4699 days | 31% |
| Robert MacLeod-Smith | 8/10 | 4701 days | 31% |
| Chris Marsh | 6/10 | 4702 days | 27% |
| Jessica Lane | 7/10 | 4702 days | 29% |
| Francis Corrigan | 7/10 | 4706 days | 29% |
| Laura Smith | 9/10 | 4718 days | 31% |
| Dean | 8/10 | 4751 days | 31% |
| Berry | 10/10 | 4778 days | 32% |
| Steve | 9/10 | 4781 days | 31% |
| MaggieYChaChi | 9/10 | 4858 days | 31% |
| GenH | 9/10 | 4981 days | 31% |
| Allison Meyoz | 9/10 | 4987 days | 31% |
| G Tulloch | 9/10 | 5005 days | 31% |
| Stephen Hunt | 9/10 | 5007 days | 31% |
| Thomas Klebensberger | 10/10 | 5007 days | 32% |
| Therea | 10/10 | 5010 days | 32% |
| Sean Brownell | 7/10 | 5011 days | 29% |
| Laura Thrower | 10/10 | 5016 days | 32% |
| David Taylor | 9/10 | 5016 days | 31% |
| Stefan Schmitz | 8/10 | 5024 days | 31% |
| Marii Joekalda | 8/10 | 5025 days | 31% |
| Frank & Ruth | 6/10 | 5026 days | 27% |
| Nathalie | 10/10 | 5026 days | 32% |
| Jo Meekley | 7/10 | 5026 days | 29% |
| Margit and Corein Groenevelt | 8/10 | 5028 days | 31% |
| Judith | 9/10 | 5028 days | 31% |
| Ven | 8/10 | 5028 days | 31% |
| Florian | 8/10 | 5032 days | 31% |
| Helen | 9/10 | 5032 days | 31% |
| Juliane Kleiu | 10/10 | 5032 days | 32% |
| Paula Dove | 10/10 | 5032 days | 32% |
| Erin | 8/10 | 5033 days | 31% |
| Walter Buschta | 8/10 | 5033 days | 31% |
| Wouter Moui | 6/10 | 5034 days | 27% |
| K Dahmer | 8/10 | 5035 days | 31% |
| Jonathan Cree | 9/10 | 5035 days | 31% |
| Laura Leigh | 10/10 | 5035 days | 32% |
| Ann-Kathrin Auditor | 10/10 | 5036 days | 32% |
| Katherine Forward | 8/10 | 5036 days | 31% |
| Chris Ashton | 10/10 | 5036 days | 32% |
| Jerry & Floon | 7/10 | 5040 days | 29% |
| Hadar Zevulun | 9/10 | 5041 days | 31% |
| Grumbach | 9/10 | 5045 days | 31% |
| Caroline Sheridan | 9/10 | 5046 days | 31% |
| Chris Darlington | 10/10 | 5050 days | 32% |
| Cheryl | 10/10 | 5060 days | 32% |
| Mark Aarts | 9/10 | 5061 days | 31% |
| Samuel Prechel | 8/10 | 5062 days | 31% |
| Dave and Lin Mungham | 10/10 | 5063 days | 32% |
| Gordon Daniels | 8/10 | 5065 days | 31% |
| Dr Dorthe Bossow | 3/10 | 5066 days | 16% |
| Helen Gilbertson | 8/10 | 5069 days | 31% |
| Doris Neuber | 9/10 | 5069 days | 31% |
| Ashleigh Buckley | 8/10 | 5070 days | 31% |
| PerspirationJournal | 10/10 | 5162 days | 32% |
| alku83 | 10/10 | 5162 days | 32% |
| Mary Van | 8/10 | 5223 days | 31% |
| chloe1111 | 10/10 | 5346 days | 32% |
| jenniferuk | 9/10 | 5346 days | 31% |
| Peter and Hilda | 10/10 | 5376 days | 32% |
| Einar | 9/10 | 5395 days | 31% |
| Inbar Yizhar Barnea | 8/10 | 5395 days | 31% |
| Tanya | 9/10 | 5400 days | 31% |
| Jana Steve | 10/10 | 5401 days | 32% |
| Yasmin Abrahams | 7/10 | 5409 days | 29% |
| Barbara & Sven | 10/10 | 5409 days | 32% |
| Judith | 8/10 | 5413 days | 31% |
| Henrik Hougs | 8/10 | 5415 days | 31% |
| Chris Glasg | 9/10 | 5415 days | 31% |
| Michael | 10/10 | 5417 days | 32% |
| Gary Ebrig | 10/10 | 5420 days | 32% |
| Mathias | 9/10 | 5422 days | 31% |
| Jamie | 9/10 | 5427 days | 31% |
| David Hobson | 8/10 | 5427 days | 31% |
| Christian | 10/10 | 5427 days | 32% |
| vanijzendoor | 8/10 | 5430 days | 31% |
| Dick Rosman | 8/10 | 5431 days | 31% |
| Frances Hay | 8/10 | 5434 days | 31% |
| Chance McGuire | 10/10 | 5435 days | 32% |
| Kevin and Teresa | 8/10 | 5435 days | 31% |
| Ben Miklozek | 9/10 | 5435 days | 31% |
| Marianne Lovdal | 9/10 | 5435 days | 31% |
| Jessica | 5/10 | 5440 days | 23% |
| S Luis Van Oler | 6/10 | 5440 days | 27% |
| sophiep | 8/10 | 5481 days | 31% |
| katharinatum | 9/10 | 5481 days | 31% |
| koellner | 6/10 | 5495 days | 27% |
| chrish1 | 9/10 | 5497 days | 31% |
| Fred Findlay | 7/10 | 5509 days | 29% |
| maleta | 9/10 | 5518 days | 31% |
| Gemma Morris | 10/10 | 5520 days | 32% |
| TomL | 10/10 | 5527 days | 32% |
| Pauline Wan | 7/10 | 5527 days | 29% |
| eowyn2k | 7/10 | 5527 days | 29% |
| Suzanne | 9/10 | 5558 days | 31% |
| terryd | 9/10 | 5619 days | 31% |
| kindel | 6/10 | 5623 days | 27% |
| Emear Donnelly | 10/10 | 5662 days | 32% |
| zoed | 7/10 | 5696 days | 29% |
| steph_m | 9/10 | 5711 days | 31% |
| Charles Lyne | 10/10 | 5711 days | 32% |
| BenM1 | 7/10 | 5720 days | 29% |
| KimC | 8/10 | 5729 days | 31% |
| JonK | 8/10 | 5729 days | 31% |
| TschaneK | 10/10 | 5731 days | 32% |
| RogerW | 10/10 | 5733 days | 32% |
| NicolaW | 10/10 | 5733 days | 32% |
| Lisa Duin | 8/10 | 5739 days | 31% |
| Joanna Harrnon | 9/10 | 5740 days | 31% |
| David | 8/10 | 5741 days | 31% |
| johnst | 10/10 | 5741 days | 32% |
| Adi | 10/10 | 5741 days | 32% |
| Sally477 | 9/10 | 5742 days | 31% |
| Becca1 | 9/10 | 5743 days | 31% |
| Jelle | 8/10 | 5744 days | 31% |
| Denys | 8/10 | 5745 days | 31% |
| Ronny | 9/10 | 5745 days | 31% |
| Viktoria Stoffel | 10/10 | 5748 days | 32% |
| Jon Li | 9/10 | 5753 days | 31% |
| Han Disveld | 9/10 | 5753 days | 31% |
| BevanLisa | 10/10 | 5758 days | 32% |
| SabineGermany | 10/10 | 5759 days | 32% |
| StefanGermany1 | 9/10 | 5759 days | 31% |
| AnjaC | 7/10 | 5759 days | 29% |
| AnjaChrist | 7/10 | 5759 days | 29% |
| Torsten | 9/10 | 5760 days | 31% |
| MarcoJ | 8/10 | 5761 days | 31% |
| James O'Neil | 10/10 | 5761 days | 32% |
| Barry Smith | 10/10 | 5761 days | 32% |
| Siemens | 8/10 | 5761 days | 31% |
| AlexH | 10/10 | 5762 days | 32% |
| AnnickH | 6/10 | 5763 days | 27% |
| Rene | 8/10 | 5764 days | 31% |
| Dorothee | 8/10 | 5764 days | 31% |
| Rob | 7/10 | 5764 days | 29% |
| Mike | 6/10 | 5765 days | 27% |
| TammyH | 9/10 | 5767 days | 31% |
| Lynn White | 7/10 | 5767 days | 29% |
| Mette | 8/10 | 5771 days | 31% |
| Axel | 5/10 | 5771 days | 23% |
| amyd | 8/10 | 5772 days | 31% |
| Susan | 9/10 | 5773 days | 31% |
| lannie | 5/10 | 5774 days | 23% |
| XaviG | 9/10 | 5775 days | 31% |
| ChenM | 8/10 | 5775 days | 31% |
| Steven | 9/10 | 5775 days | 31% |
| CarleyJ | 8/10 | 5775 days | 31% |
| JesusB | 7/10 | 5775 days | 29% |
| GingerPrince | 9/10 | 5775 days | 31% |
| Steve | 10/10 | 5775 days | 32% |
| Claudia | 9/10 | 5777 days | 31% |
| Pascal | 8/10 | 5777 days | 31% |
| Karen | 9/10 | 5780 days | 31% |
| RandiL | 7/10 | 5783 days | 29% |
| IreneF | 9/10 | 5784 days | 31% |
| Rachel | 8/10 | 5790 days | 31% |
| Adi | 10/10 | 5790 days | 32% |
| Claire | 8/10 | 5790 days | 31% |
| Philippa | 9/10 | 5791 days | 31% |
| Conway | 9/10 | 5791 days | 31% |
| orianne | 10/10 | 5798 days | 32% |
| Caroline | 7/10 | 5798 days | 29% |
| Eike | 9/10 | 5805 days | 31% |
| Benni | 7/10 | 5807 days | 29% |
| John | 6/10 | 5810 days | 27% |
| Dan | 9/10 | 5814 days | 31% |
| Sally | 9/10 | 5814 days | 31% |
| Rosa | 4/10 | 5814 days | 20% |
| Sascha | 7/10 | 5815 days | 29% |
| Dassel | 8/10 | 5815 days | 31% |
| Eric | 3/10 | 5816 days | 16% |
| Charlie | 9/10 | 5821 days | 31% |
| tommfuller | 7/10 | 5825 days | 29% |
| Anouk | 9/10 | 5853 days | 31% |
| MissTraveller2009 | 10/10 | 5862 days | 32% |
| David | 9/10 | 5866 days | 31% |
| Laura | 9/10 | 5866 days | 31% |
| Adam | 8/10 | 5871 days | 31% |
| mike brett | 7/10 | 5875 days | 29% |
| georgepearse | 9/10 | 5912 days | 31% |
| Aoife | 8/10 | 5915 days | 31% |
| Davina | 8/10 | 5916 days | 31% |
| Kath | 10/10 | 5918 days | 32% |
| Kate | 8/10 | 5927 days | 31% |
| Brenda | 8/10 | 5927 days | 31% |
| Amy | 8/10 | 5936 days | 31% |
| Katie | 10/10 | 5936 days | 32% |
| Christoffer | 10/10 | 5938 days | 32% |
| Rebecca | 9/10 | 5938 days | 31% |
| Suyin | 10/10 | 5938 days | 32% |
| Sarah | 6/10 | 5947 days | 27% |
| Michaela | 9/10 | 5951 days | 31% |
| Christopher | 6/10 | 5951 days | 27% |
| James | 8/10 | 5951 days | 31% |
| Sam Prior | 8/10 | 5956 days | 31% |
| jillian | 8/10 | 5960 days | 31% |
| George Burgas | 9/10 | 5965 days | 31% |
| stain weedman | 6/10 | 5971 days | 27% |
| Sharon Curly | 9/10 | 5973 days | 31% |
| Peddy | 7/10 | 5977 days | 29% |
| Tim | 5/10 | 5993 days | 23% |
| Thomas Fillary | 9/10 | 6009 days | 31% |
| Sjoerd | 8/10 | 6015 days | 31% |
| Gemma Harling | 9/10 | 6015 days | 31% |
| Charlie Bond | 9/10 | 6022 days | 31% |
| Florencia Cortese | 10/10 | 6083 days | 32% |
| Meike Biel | 7/10 | 6091 days | 29% |
| Helen | 9/10 | 6091 days | 31% |
| Ellie | 9/10 | 6103 days | 31% |
| Daniel | 7/10 | 6121 days | 29% |
| Omer Harron | 9/10 | 6121 days | 31% |
| Yayami Kimura | 10/10 | 6124 days | 32% |
| Kieran Concarr | 9/10 | 6124 days | 31% |
| Christian | 8/10 | 6128 days | 31% |
| Kathrin | 9/10 | 6132 days | 31% |
| Andreas Brett | 8/10 | 6134 days | 31% |
| Kristine Clemmensen Rotne | 7/10 | 6134 days | 29% |
| helga | 6/10 | 6134 days | 27% |
| Emily Houston | 10/10 | 6138 days | 32% |
| Hannah Holmes | 8/10 | 6141 days | 31% |
| Lisa Tame | 9/10 | 6142 days | 31% |
| Kelly | 9/10 | 6145 days | 31% |
| Stephanie | 10/10 | 6153 days | 32% |
| Sayaka | 7/10 | 6153 days | 29% |
| Marc Hertogs | 8/10 | 6157 days | 31% |
| Tanya Berthoud | 9/10 | 6159 days | 31% |
| Van Hoof | 8/10 | 6181 days | 31% |
| Berger | 8/10 | 6188 days | 31% |
| Travis Brennan | 9/10 | 6200 days | 31% |
| Alexis | 10/10 | 6215 days | 32% |
| Martine Arsac | 5/10 | 6223 days | 23% |
| Frida | 8/10 | 6225 days | 31% |
| Ben | 10/10 | 6226 days | 32% |
| Wendy Williams | 8/10 | 6233 days | 31% |
| Charlie Wilson | 10/10 | 6308 days | 32% |
| Ian Coldrake | 8/10 | 6308 days | 31% |
| Jill Bourke | 10/10 | 6313 days | 32% |
| Andy Chapman | 8/10 | 6343 days | 31% |
| Shelley | 10/10 | 6448 days | 32% |
| Will | 9/10 | 6457 days | 31% |
| Michael | 9/10 | 6459 days | 31% |
| Sue | 8/10 | 6459 days | 31% |
| Stefan | 8/10 | 6462 days | 31% |
| Jenny | 8/10 | 6465 days | 31% |
| Kate | 8/10 | 6467 days | 31% |
| Paul Yacoumis | 7/10 | 6469 days | 29% |
| Kathryn | 9/10 | 6474 days | 31% |
| Celia | 9/10 | 6476 days | 31% |
| Annelte | 4/10 | 6477 days | 20% |
| IdanNakash | 8/10 | 6477 days | 31% |
| Martin Christina | 9/10 | 6477 days | 31% |
| Chris | 8/10 | 6478 days | 31% |
| Janneke | 8/10 | 6478 days | 31% |
| Sue Robertson | 10/10 | 6480 days | 32% |
| Fenke | 7/10 | 6483 days | 29% |
| Bas | 7/10 | 6483 days | 29% |
| Daniel | 9/10 | 6485 days | 31% |
| Susan | 6/10 | 6491 days | 27% |
| ErikVanDam | 9/10 | 6497 days | 31% |
| MariaNorman | 9/10 | 6497 days | 31% |
| MarcHarris | 8/10 | 6497 days | 31% |
| Helena | 10/10 | 6497 days | 32% |
| Sarah | 10/10 | 6506 days | 32% |
| beesom | 8/10 | 6507 days | 31% |
| Peter | 5/10 | 6511 days | 23% |
| Sonja | 7/10 | 6518 days | 29% |
| Leah | 8/10 | 6519 days | 31% |
| Sarah | 10/10 | 6539 days | 32% |
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 Franz Josef Glacier Guides experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 days. However the Franz Josef Glacier Guides 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 Franz Josef Glacier Guides experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.98% |
| 198 | -4.00% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
Balancing Adjustment
2.71% 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
84%
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.