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 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
85.15%
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 | 2932 days | 100% |
| Jessica Freeland | 10/10 | 2993 days | 96% |
| Nanna Overbeck | 10/10 | 3005 days | 95% |
| Joe Rogers | 9/10 | 3286 days | 75% |
| Nicola Wiggan | 9/10 | 3355 days | 70% |
| Ben McDougal | 10/10 | 3377 days | 69% |
| Maria Schober | 5/10 | 3664 days | 38% |
| Helen Parsons | 1/10 | 3672 days | 20% |
| Elisa Felising | 7/10 | 3672 days | 45% |
| Claudia de Winter | 9/10 | 3984 days | 27% |
| Penny Lee | 9/10 | 3986 days | 27% |
| Jeroen Suijlang | 8/10 | 3986 days | 27% |
| Ludvig Fagerstrom | 8/10 | 4060 days | 22% |
| Marco Schmidt | 10/10 | 4357 days | 1% |
| Christian Schumacher | 10/10 | 4357 days | 1% |
| Jennifer Bramstad | 8/10 | 4377 days | 0% |
| Evelina Johansson | 8/10 | 4377 days | 0% |
| Sofia Anderson | 10/10 | 4377 days | 0% |
| Steve | 5/10 | 4378 days | 0% |
| Janine Kohlgrueler | 9/10 | 4385 days | 35% |
| Fraser Goldsmith | 9/10 | 4402 days | 35% |
| Nigel Leighton | 10/10 | 4456 days | 35% |
| Jonathan Vondette | 7/10 | 4459 days | 33% |
| Andreas and Christine and Nora Busch | 10/10 | 4467 days | 35% |
| lavonc | 3/10 | 4498 days | 19% |
| peterpiper | 10/10 | 4682 days | 35% |
| sandytemp22 | 10/10 | 4712 days | 35% |
| Laura vanGool | 10/10 | 4728 days | 35% |
| Barbara Berkhout | 7/10 | 4728 days | 33% |
| Jurgen Joyce | 8/10 | 4735 days | 35% |
| Carole Carter | 9/10 | 4735 days | 35% |
| Sabrina Germany | 9/10 | 4738 days | 35% |
| J Jmal | 10/10 | 4739 days | 35% |
| Malena | 10/10 | 4743 days | 35% |
| Erik | 10/10 | 4745 days | 35% |
| Marion Hassink | 8/10 | 4749 days | 35% |
| Baas | 8/10 | 4752 days | 35% |
| Barbara | 10/10 | 4753 days | 35% |
| Rebecca Richardson | 8/10 | 4754 days | 35% |
| Andrew Powell | 7/10 | 4754 days | 33% |
| Andy Bridgman | 8/10 | 4757 days | 35% |
| Aoife Lillis | 7/10 | 4760 days | 33% |
| Rainer Schnell | 8/10 | 4764 days | 35% |
| Filsack | 8/10 | 4764 days | 35% |
| Hazel | 10/10 | 4765 days | 35% |
| Frank Waskikowski | 9/10 | 4766 days | 35% |
| Andreas Kristiansen | 9/10 | 4766 days | 35% |
| Robert MacLeod-Smith | 8/10 | 4768 days | 35% |
| Chris Marsh | 6/10 | 4769 days | 30% |
| Jessica Lane | 7/10 | 4769 days | 33% |
| Francis Corrigan | 7/10 | 4773 days | 33% |
| Laura Smith | 9/10 | 4785 days | 35% |
| Dean | 8/10 | 4818 days | 35% |
| Berry | 10/10 | 4845 days | 35% |
| Steve | 9/10 | 4848 days | 35% |
| MaggieYChaChi | 9/10 | 4925 days | 35% |
| GenH | 9/10 | 5048 days | 35% |
| Allison Meyoz | 9/10 | 5054 days | 35% |
| G Tulloch | 9/10 | 5072 days | 35% |
| Stephen Hunt | 9/10 | 5074 days | 35% |
| Thomas Klebensberger | 10/10 | 5074 days | 35% |
| Therea | 10/10 | 5077 days | 35% |
| Sean Brownell | 7/10 | 5078 days | 33% |
| Laura Thrower | 10/10 | 5083 days | 35% |
| David Taylor | 9/10 | 5083 days | 35% |
| Stefan Schmitz | 8/10 | 5091 days | 35% |
| Marii Joekalda | 8/10 | 5092 days | 35% |
| Frank & Ruth | 6/10 | 5093 days | 30% |
| Nathalie | 10/10 | 5093 days | 35% |
| Jo Meekley | 7/10 | 5093 days | 33% |
| Margit and Corein Groenevelt | 8/10 | 5095 days | 35% |
| Judith | 9/10 | 5095 days | 35% |
| Ven | 8/10 | 5095 days | 35% |
| Florian | 8/10 | 5099 days | 35% |
| Helen | 9/10 | 5099 days | 35% |
| Juliane Kleiu | 10/10 | 5099 days | 35% |
| Paula Dove | 10/10 | 5099 days | 35% |
| Erin | 8/10 | 5100 days | 35% |
| Walter Buschta | 8/10 | 5100 days | 35% |
| Wouter Moui | 6/10 | 5101 days | 30% |
| K Dahmer | 8/10 | 5102 days | 35% |
| Jonathan Cree | 9/10 | 5102 days | 35% |
| Laura Leigh | 10/10 | 5102 days | 35% |
| Ann-Kathrin Auditor | 10/10 | 5103 days | 35% |
| Katherine Forward | 8/10 | 5103 days | 35% |
| Chris Ashton | 10/10 | 5103 days | 35% |
| Jerry & Floon | 7/10 | 5107 days | 33% |
| Hadar Zevulun | 9/10 | 5108 days | 35% |
| Grumbach | 9/10 | 5112 days | 35% |
| Caroline Sheridan | 9/10 | 5113 days | 35% |
| Chris Darlington | 10/10 | 5117 days | 35% |
| Cheryl | 10/10 | 5127 days | 35% |
| Mark Aarts | 9/10 | 5128 days | 35% |
| Samuel Prechel | 8/10 | 5129 days | 35% |
| Dave and Lin Mungham | 10/10 | 5130 days | 35% |
| Gordon Daniels | 8/10 | 5132 days | 35% |
| Dr Dorthe Bossow | 3/10 | 5133 days | 19% |
| Helen Gilbertson | 8/10 | 5136 days | 35% |
| Doris Neuber | 9/10 | 5136 days | 35% |
| Ashleigh Buckley | 8/10 | 5137 days | 35% |
| PerspirationJournal | 10/10 | 5229 days | 35% |
| alku83 | 10/10 | 5229 days | 35% |
| Mary Van | 8/10 | 5290 days | 35% |
| chloe1111 | 10/10 | 5413 days | 35% |
| jenniferuk | 9/10 | 5413 days | 35% |
| Peter and Hilda | 10/10 | 5443 days | 35% |
| Einar | 9/10 | 5462 days | 35% |
| Inbar Yizhar Barnea | 8/10 | 5462 days | 35% |
| Tanya | 9/10 | 5467 days | 35% |
| Jana Steve | 10/10 | 5468 days | 35% |
| Yasmin Abrahams | 7/10 | 5476 days | 33% |
| Barbara & Sven | 10/10 | 5476 days | 35% |
| Judith | 8/10 | 5480 days | 35% |
| Henrik Hougs | 8/10 | 5482 days | 35% |
| Chris Glasg | 9/10 | 5482 days | 35% |
| Michael | 10/10 | 5484 days | 35% |
| Gary Ebrig | 10/10 | 5487 days | 35% |
| Mathias | 9/10 | 5489 days | 35% |
| Jamie | 9/10 | 5494 days | 35% |
| David Hobson | 8/10 | 5494 days | 35% |
| Christian | 10/10 | 5494 days | 35% |
| vanijzendoor | 8/10 | 5497 days | 35% |
| Dick Rosman | 8/10 | 5498 days | 35% |
| Frances Hay | 8/10 | 5501 days | 35% |
| Chance McGuire | 10/10 | 5502 days | 35% |
| Kevin and Teresa | 8/10 | 5502 days | 35% |
| Ben Miklozek | 9/10 | 5502 days | 35% |
| Marianne Lovdal | 9/10 | 5502 days | 35% |
| Jessica | 5/10 | 5507 days | 27% |
| S Luis Van Oler | 6/10 | 5507 days | 30% |
| sophiep | 8/10 | 5548 days | 35% |
| katharinatum | 9/10 | 5548 days | 35% |
| koellner | 6/10 | 5562 days | 30% |
| chrish1 | 9/10 | 5564 days | 35% |
| Fred Findlay | 7/10 | 5576 days | 33% |
| maleta | 9/10 | 5585 days | 35% |
| Gemma Morris | 10/10 | 5587 days | 35% |
| TomL | 10/10 | 5594 days | 35% |
| Pauline Wan | 7/10 | 5594 days | 33% |
| eowyn2k | 7/10 | 5594 days | 33% |
| Suzanne | 9/10 | 5625 days | 35% |
| terryd | 9/10 | 5686 days | 35% |
| kindel | 6/10 | 5690 days | 30% |
| Emear Donnelly | 10/10 | 5729 days | 35% |
| zoed | 7/10 | 5763 days | 33% |
| steph_m | 9/10 | 5778 days | 35% |
| Charles Lyne | 10/10 | 5778 days | 35% |
| BenM1 | 7/10 | 5787 days | 33% |
| KimC | 8/10 | 5796 days | 35% |
| JonK | 8/10 | 5796 days | 35% |
| TschaneK | 10/10 | 5798 days | 35% |
| RogerW | 10/10 | 5800 days | 35% |
| NicolaW | 10/10 | 5800 days | 35% |
| Lisa Duin | 8/10 | 5806 days | 35% |
| Joanna Harrnon | 9/10 | 5807 days | 35% |
| David | 8/10 | 5808 days | 35% |
| johnst | 10/10 | 5808 days | 35% |
| Adi | 10/10 | 5808 days | 35% |
| Sally477 | 9/10 | 5809 days | 35% |
| Becca1 | 9/10 | 5810 days | 35% |
| Jelle | 8/10 | 5811 days | 35% |
| Denys | 8/10 | 5812 days | 35% |
| Ronny | 9/10 | 5812 days | 35% |
| Viktoria Stoffel | 10/10 | 5815 days | 35% |
| Jon Li | 9/10 | 5820 days | 35% |
| Han Disveld | 9/10 | 5820 days | 35% |
| BevanLisa | 10/10 | 5825 days | 35% |
| SabineGermany | 10/10 | 5826 days | 35% |
| StefanGermany1 | 9/10 | 5826 days | 35% |
| AnjaC | 7/10 | 5826 days | 33% |
| AnjaChrist | 7/10 | 5826 days | 33% |
| Torsten | 9/10 | 5827 days | 35% |
| MarcoJ | 8/10 | 5828 days | 35% |
| James O'Neil | 10/10 | 5828 days | 35% |
| Barry Smith | 10/10 | 5828 days | 35% |
| Siemens | 8/10 | 5828 days | 35% |
| AlexH | 10/10 | 5829 days | 35% |
| AnnickH | 6/10 | 5830 days | 30% |
| Rene | 8/10 | 5831 days | 35% |
| Dorothee | 8/10 | 5831 days | 35% |
| Rob | 7/10 | 5831 days | 33% |
| Mike | 6/10 | 5832 days | 30% |
| TammyH | 9/10 | 5834 days | 35% |
| Lynn White | 7/10 | 5834 days | 33% |
| Mette | 8/10 | 5838 days | 35% |
| Axel | 5/10 | 5838 days | 27% |
| amyd | 8/10 | 5839 days | 35% |
| Susan | 9/10 | 5840 days | 35% |
| lannie | 5/10 | 5841 days | 27% |
| XaviG | 9/10 | 5842 days | 35% |
| ChenM | 8/10 | 5842 days | 35% |
| Steven | 9/10 | 5842 days | 35% |
| CarleyJ | 8/10 | 5842 days | 35% |
| JesusB | 7/10 | 5842 days | 33% |
| GingerPrince | 9/10 | 5842 days | 35% |
| Steve | 10/10 | 5842 days | 35% |
| Claudia | 9/10 | 5844 days | 35% |
| Pascal | 8/10 | 5844 days | 35% |
| Karen | 9/10 | 5847 days | 35% |
| RandiL | 7/10 | 5850 days | 33% |
| IreneF | 9/10 | 5851 days | 35% |
| Rachel | 8/10 | 5857 days | 35% |
| Adi | 10/10 | 5857 days | 35% |
| Claire | 8/10 | 5857 days | 35% |
| Philippa | 9/10 | 5858 days | 35% |
| Conway | 9/10 | 5858 days | 35% |
| orianne | 10/10 | 5865 days | 35% |
| Caroline | 7/10 | 5865 days | 33% |
| Eike | 9/10 | 5872 days | 35% |
| Benni | 7/10 | 5874 days | 33% |
| John | 6/10 | 5877 days | 30% |
| Dan | 9/10 | 5881 days | 35% |
| Sally | 9/10 | 5881 days | 35% |
| Rosa | 4/10 | 5881 days | 23% |
| Sascha | 7/10 | 5882 days | 33% |
| Dassel | 8/10 | 5882 days | 35% |
| Eric | 3/10 | 5883 days | 19% |
| Charlie | 9/10 | 5888 days | 35% |
| tommfuller | 7/10 | 5892 days | 33% |
| Anouk | 9/10 | 5920 days | 35% |
| MissTraveller2009 | 10/10 | 5929 days | 35% |
| David | 9/10 | 5933 days | 35% |
| Laura | 9/10 | 5933 days | 35% |
| Adam | 8/10 | 5938 days | 35% |
| mike brett | 7/10 | 5942 days | 33% |
| georgepearse | 9/10 | 5979 days | 35% |
| Aoife | 8/10 | 5982 days | 35% |
| Davina | 8/10 | 5983 days | 35% |
| Kath | 10/10 | 5985 days | 35% |
| Kate | 8/10 | 5994 days | 35% |
| Brenda | 8/10 | 5994 days | 35% |
| Amy | 8/10 | 6003 days | 35% |
| Katie | 10/10 | 6003 days | 35% |
| Christoffer | 10/10 | 6005 days | 35% |
| Rebecca | 9/10 | 6005 days | 35% |
| Suyin | 10/10 | 6005 days | 35% |
| Sarah | 6/10 | 6014 days | 30% |
| Michaela | 9/10 | 6018 days | 35% |
| Christopher | 6/10 | 6018 days | 30% |
| James | 8/10 | 6018 days | 35% |
| Sam Prior | 8/10 | 6023 days | 35% |
| jillian | 8/10 | 6027 days | 35% |
| George Burgas | 9/10 | 6032 days | 35% |
| stain weedman | 6/10 | 6038 days | 30% |
| Sharon Curly | 9/10 | 6040 days | 35% |
| Peddy | 7/10 | 6044 days | 33% |
| Tim | 5/10 | 6060 days | 27% |
| Thomas Fillary | 9/10 | 6076 days | 35% |
| Sjoerd | 8/10 | 6082 days | 35% |
| Gemma Harling | 9/10 | 6082 days | 35% |
| Charlie Bond | 9/10 | 6089 days | 35% |
| Florencia Cortese | 10/10 | 6150 days | 35% |
| Meike Biel | 7/10 | 6158 days | 33% |
| Helen | 9/10 | 6158 days | 35% |
| Ellie | 9/10 | 6170 days | 35% |
| Daniel | 7/10 | 6188 days | 33% |
| Omer Harron | 9/10 | 6188 days | 35% |
| Yayami Kimura | 10/10 | 6191 days | 35% |
| Kieran Concarr | 9/10 | 6191 days | 35% |
| Christian | 8/10 | 6195 days | 35% |
| Kathrin | 9/10 | 6199 days | 35% |
| Andreas Brett | 8/10 | 6201 days | 35% |
| Kristine Clemmensen Rotne | 7/10 | 6201 days | 33% |
| helga | 6/10 | 6201 days | 30% |
| Emily Houston | 10/10 | 6205 days | 35% |
| Hannah Holmes | 8/10 | 6208 days | 35% |
| Lisa Tame | 9/10 | 6209 days | 35% |
| Kelly | 9/10 | 6212 days | 35% |
| Stephanie | 10/10 | 6220 days | 35% |
| Sayaka | 7/10 | 6220 days | 33% |
| Marc Hertogs | 8/10 | 6224 days | 35% |
| Tanya Berthoud | 9/10 | 6226 days | 35% |
| Van Hoof | 8/10 | 6248 days | 35% |
| Berger | 8/10 | 6255 days | 35% |
| Travis Brennan | 9/10 | 6267 days | 35% |
| Alexis | 10/10 | 6282 days | 35% |
| Martine Arsac | 5/10 | 6290 days | 27% |
| Frida | 8/10 | 6292 days | 35% |
| Ben | 10/10 | 6293 days | 35% |
| Wendy Williams | 8/10 | 6300 days | 35% |
| Charlie Wilson | 10/10 | 6375 days | 35% |
| Ian Coldrake | 8/10 | 6375 days | 35% |
| Jill Bourke | 10/10 | 6380 days | 35% |
| Andy Chapman | 8/10 | 6410 days | 35% |
| Shelley | 10/10 | 6515 days | 35% |
| Will | 9/10 | 6524 days | 35% |
| Michael | 9/10 | 6526 days | 35% |
| Sue | 8/10 | 6526 days | 35% |
| Stefan | 8/10 | 6529 days | 35% |
| Jenny | 8/10 | 6532 days | 35% |
| Kate | 8/10 | 6534 days | 35% |
| Paul Yacoumis | 7/10 | 6536 days | 33% |
| Kathryn | 9/10 | 6541 days | 35% |
| Celia | 9/10 | 6543 days | 35% |
| Annelte | 4/10 | 6544 days | 23% |
| IdanNakash | 8/10 | 6544 days | 35% |
| Martin Christina | 9/10 | 6544 days | 35% |
| Chris | 8/10 | 6545 days | 35% |
| Janneke | 8/10 | 6545 days | 35% |
| Sue Robertson | 10/10 | 6547 days | 35% |
| Fenke | 7/10 | 6550 days | 33% |
| Bas | 7/10 | 6550 days | 33% |
| Daniel | 9/10 | 6552 days | 35% |
| Susan | 6/10 | 6558 days | 30% |
| ErikVanDam | 9/10 | 6564 days | 35% |
| MariaNorman | 9/10 | 6564 days | 35% |
| MarcHarris | 8/10 | 6564 days | 35% |
| Helena | 10/10 | 6564 days | 35% |
| Sarah | 10/10 | 6573 days | 35% |
| beesom | 8/10 | 6574 days | 35% |
| Peter | 5/10 | 6578 days | 27% |
| Sonja | 7/10 | 6585 days | 33% |
| Leah | 8/10 | 6586 days | 35% |
| Sarah | 10/10 | 6606 days | 35% |
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
-4.13% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 54 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 | -4.07% |
| 198 | -4.09% |
| 199 | -4.11% |
| 200 | -4.13% |
| 201 | -4.15% |
| 202 | -4.17% |
| 203 | -4.19% |
| … | … |
Balancing Adjustment
2.73% 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.