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
85.16%
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 | 3283 days | 100% |
| Jessica Freeland | 10/10 | 3344 days | 94% |
| Nanna Overbeck | 10/10 | 3356 days | 93% |
| Joe Rogers | 9/10 | 3637 days | 66% |
| Nicola Wiggan | 9/10 | 3706 days | 59% |
| Ben McDougal | 10/10 | 3728 days | 58% |
| Maria Schober | 5/10 | 4015 days | 22% |
| Helen Parsons | 1/10 | 4023 days | 10% |
| Elisa Felising | 7/10 | 4023 days | 28% |
| Claudia de Winter | 9/10 | 4335 days | 0% |
| Penny Lee | 9/10 | 4337 days | 0% |
| Jeroen Suijlang | 8/10 | 4337 days | 0% |
| Ludvig Fagerstrom | 8/10 | 4411 days | 43% |
| Marco Schmidt | 10/10 | 4708 days | 44% |
| Christian Schumacher | 10/10 | 4708 days | 44% |
| Jennifer Bramstad | 8/10 | 4728 days | 43% |
| Evelina Johansson | 8/10 | 4728 days | 43% |
| Sofia Anderson | 10/10 | 4728 days | 44% |
| Steve | 5/10 | 4729 days | 33% |
| Janine Kohlgrueler | 9/10 | 4736 days | 44% |
| Fraser Goldsmith | 9/10 | 4753 days | 44% |
| Nigel Leighton | 10/10 | 4807 days | 44% |
| Jonathan Vondette | 7/10 | 4810 days | 41% |
| Andreas and Christine and Nora Busch | 10/10 | 4818 days | 44% |
| lavonc | 3/10 | 4849 days | 22% |
| peterpiper | 10/10 | 5033 days | 44% |
| sandytemp22 | 10/10 | 5063 days | 44% |
| Laura vanGool | 10/10 | 5079 days | 44% |
| Barbara Berkhout | 7/10 | 5079 days | 41% |
| Jurgen Joyce | 8/10 | 5086 days | 43% |
| Carole Carter | 9/10 | 5086 days | 44% |
| Sabrina Germany | 9/10 | 5089 days | 44% |
| J Jmal | 10/10 | 5090 days | 44% |
| Malena | 10/10 | 5094 days | 44% |
| Erik | 10/10 | 5096 days | 44% |
| Marion Hassink | 8/10 | 5100 days | 43% |
| Baas | 8/10 | 5103 days | 43% |
| Barbara | 10/10 | 5104 days | 44% |
| Rebecca Richardson | 8/10 | 5105 days | 43% |
| Andrew Powell | 7/10 | 5105 days | 41% |
| Andy Bridgman | 8/10 | 5108 days | 43% |
| Aoife Lillis | 7/10 | 5111 days | 41% |
| Rainer Schnell | 8/10 | 5115 days | 43% |
| Filsack | 8/10 | 5115 days | 43% |
| Hazel | 10/10 | 5116 days | 44% |
| Frank Waskikowski | 9/10 | 5117 days | 44% |
| Andreas Kristiansen | 9/10 | 5117 days | 44% |
| Robert MacLeod-Smith | 8/10 | 5119 days | 43% |
| Chris Marsh | 6/10 | 5120 days | 38% |
| Jessica Lane | 7/10 | 5120 days | 41% |
| Francis Corrigan | 7/10 | 5124 days | 41% |
| Laura Smith | 9/10 | 5136 days | 44% |
| Dean | 8/10 | 5169 days | 43% |
| Berry | 10/10 | 5196 days | 44% |
| Steve | 9/10 | 5199 days | 44% |
| MaggieYChaChi | 9/10 | 5276 days | 44% |
| GenH | 9/10 | 5399 days | 44% |
| Allison Meyoz | 9/10 | 5405 days | 44% |
| G Tulloch | 9/10 | 5423 days | 44% |
| Stephen Hunt | 9/10 | 5425 days | 44% |
| Thomas Klebensberger | 10/10 | 5425 days | 44% |
| Therea | 10/10 | 5428 days | 44% |
| Sean Brownell | 7/10 | 5429 days | 41% |
| Laura Thrower | 10/10 | 5434 days | 44% |
| David Taylor | 9/10 | 5434 days | 44% |
| Stefan Schmitz | 8/10 | 5442 days | 43% |
| Marii Joekalda | 8/10 | 5443 days | 43% |
| Frank & Ruth | 6/10 | 5444 days | 38% |
| Nathalie | 10/10 | 5444 days | 44% |
| Jo Meekley | 7/10 | 5444 days | 41% |
| Margit and Corein Groenevelt | 8/10 | 5446 days | 43% |
| Judith | 9/10 | 5446 days | 44% |
| Ven | 8/10 | 5446 days | 43% |
| Florian | 8/10 | 5450 days | 43% |
| Helen | 9/10 | 5450 days | 44% |
| Juliane Kleiu | 10/10 | 5450 days | 44% |
| Paula Dove | 10/10 | 5450 days | 44% |
| Erin | 8/10 | 5451 days | 43% |
| Walter Buschta | 8/10 | 5451 days | 43% |
| Wouter Moui | 6/10 | 5452 days | 38% |
| K Dahmer | 8/10 | 5453 days | 43% |
| Jonathan Cree | 9/10 | 5453 days | 44% |
| Laura Leigh | 10/10 | 5453 days | 44% |
| Ann-Kathrin Auditor | 10/10 | 5454 days | 44% |
| Katherine Forward | 8/10 | 5454 days | 43% |
| Chris Ashton | 10/10 | 5454 days | 44% |
| Jerry & Floon | 7/10 | 5458 days | 41% |
| Hadar Zevulun | 9/10 | 5459 days | 44% |
| Grumbach | 9/10 | 5463 days | 44% |
| Caroline Sheridan | 9/10 | 5464 days | 44% |
| Chris Darlington | 10/10 | 5468 days | 44% |
| Cheryl | 10/10 | 5478 days | 44% |
| Mark Aarts | 9/10 | 5479 days | 44% |
| Samuel Prechel | 8/10 | 5480 days | 43% |
| Dave and Lin Mungham | 10/10 | 5481 days | 44% |
| Gordon Daniels | 8/10 | 5483 days | 43% |
| Dr Dorthe Bossow | 3/10 | 5484 days | 22% |
| Helen Gilbertson | 8/10 | 5487 days | 43% |
| Doris Neuber | 9/10 | 5487 days | 44% |
| Ashleigh Buckley | 8/10 | 5488 days | 43% |
| PerspirationJournal | 10/10 | 5580 days | 44% |
| alku83 | 10/10 | 5580 days | 44% |
| Mary Van | 8/10 | 5641 days | 43% |
| chloe1111 | 10/10 | 5764 days | 44% |
| jenniferuk | 9/10 | 5764 days | 44% |
| Peter and Hilda | 10/10 | 5794 days | 44% |
| Einar | 9/10 | 5813 days | 44% |
| Inbar Yizhar Barnea | 8/10 | 5813 days | 43% |
| Tanya | 9/10 | 5818 days | 44% |
| Jana Steve | 10/10 | 5819 days | 44% |
| Yasmin Abrahams | 7/10 | 5827 days | 41% |
| Barbara & Sven | 10/10 | 5827 days | 44% |
| Judith | 8/10 | 5831 days | 43% |
| Henrik Hougs | 8/10 | 5833 days | 43% |
| Chris Glasg | 9/10 | 5833 days | 44% |
| Michael | 10/10 | 5835 days | 44% |
| Gary Ebrig | 10/10 | 5838 days | 44% |
| Mathias | 9/10 | 5840 days | 44% |
| Jamie | 9/10 | 5845 days | 44% |
| David Hobson | 8/10 | 5845 days | 43% |
| Christian | 10/10 | 5845 days | 44% |
| vanijzendoor | 8/10 | 5848 days | 43% |
| Dick Rosman | 8/10 | 5849 days | 43% |
| Frances Hay | 8/10 | 5852 days | 43% |
| Chance McGuire | 10/10 | 5853 days | 44% |
| Kevin and Teresa | 8/10 | 5853 days | 43% |
| Ben Miklozek | 9/10 | 5853 days | 44% |
| Marianne Lovdal | 9/10 | 5853 days | 44% |
| Jessica | 5/10 | 5858 days | 33% |
| S Luis Van Oler | 6/10 | 5858 days | 38% |
| sophiep | 8/10 | 5899 days | 43% |
| katharinatum | 9/10 | 5899 days | 44% |
| koellner | 6/10 | 5913 days | 38% |
| chrish1 | 9/10 | 5915 days | 44% |
| Fred Findlay | 7/10 | 5927 days | 41% |
| maleta | 9/10 | 5936 days | 44% |
| Gemma Morris | 10/10 | 5938 days | 44% |
| TomL | 10/10 | 5945 days | 44% |
| Pauline Wan | 7/10 | 5945 days | 41% |
| eowyn2k | 7/10 | 5945 days | 41% |
| Suzanne | 9/10 | 5976 days | 44% |
| terryd | 9/10 | 6037 days | 44% |
| kindel | 6/10 | 6041 days | 38% |
| Emear Donnelly | 10/10 | 6080 days | 44% |
| zoed | 7/10 | 6114 days | 41% |
| steph_m | 9/10 | 6129 days | 44% |
| Charles Lyne | 10/10 | 6129 days | 44% |
| BenM1 | 7/10 | 6138 days | 41% |
| KimC | 8/10 | 6147 days | 43% |
| JonK | 8/10 | 6147 days | 43% |
| TschaneK | 10/10 | 6149 days | 44% |
| RogerW | 10/10 | 6151 days | 44% |
| NicolaW | 10/10 | 6151 days | 44% |
| Lisa Duin | 8/10 | 6157 days | 43% |
| Joanna Harrnon | 9/10 | 6158 days | 44% |
| David | 8/10 | 6159 days | 43% |
| johnst | 10/10 | 6159 days | 44% |
| Adi | 10/10 | 6159 days | 44% |
| Sally477 | 9/10 | 6160 days | 44% |
| Becca1 | 9/10 | 6161 days | 44% |
| Jelle | 8/10 | 6162 days | 43% |
| Denys | 8/10 | 6163 days | 43% |
| Ronny | 9/10 | 6163 days | 44% |
| Viktoria Stoffel | 10/10 | 6166 days | 44% |
| Jon Li | 9/10 | 6171 days | 44% |
| Han Disveld | 9/10 | 6171 days | 44% |
| BevanLisa | 10/10 | 6176 days | 44% |
| SabineGermany | 10/10 | 6177 days | 44% |
| StefanGermany1 | 9/10 | 6177 days | 44% |
| AnjaC | 7/10 | 6177 days | 41% |
| AnjaChrist | 7/10 | 6177 days | 41% |
| Torsten | 9/10 | 6178 days | 44% |
| MarcoJ | 8/10 | 6179 days | 43% |
| James O'Neil | 10/10 | 6179 days | 44% |
| Barry Smith | 10/10 | 6179 days | 44% |
| Siemens | 8/10 | 6179 days | 43% |
| AlexH | 10/10 | 6180 days | 44% |
| AnnickH | 6/10 | 6181 days | 38% |
| Rene | 8/10 | 6182 days | 43% |
| Dorothee | 8/10 | 6182 days | 43% |
| Rob | 7/10 | 6182 days | 41% |
| Mike | 6/10 | 6183 days | 38% |
| TammyH | 9/10 | 6185 days | 44% |
| Lynn White | 7/10 | 6185 days | 41% |
| Mette | 8/10 | 6189 days | 43% |
| Axel | 5/10 | 6189 days | 33% |
| amyd | 8/10 | 6190 days | 43% |
| Susan | 9/10 | 6191 days | 44% |
| lannie | 5/10 | 6192 days | 33% |
| XaviG | 9/10 | 6193 days | 44% |
| ChenM | 8/10 | 6193 days | 43% |
| Steven | 9/10 | 6193 days | 44% |
| CarleyJ | 8/10 | 6193 days | 43% |
| JesusB | 7/10 | 6193 days | 41% |
| GingerPrince | 9/10 | 6193 days | 44% |
| Steve | 10/10 | 6193 days | 44% |
| Claudia | 9/10 | 6195 days | 44% |
| Pascal | 8/10 | 6195 days | 43% |
| Karen | 9/10 | 6198 days | 44% |
| RandiL | 7/10 | 6201 days | 41% |
| IreneF | 9/10 | 6202 days | 44% |
| Rachel | 8/10 | 6208 days | 43% |
| Adi | 10/10 | 6208 days | 44% |
| Claire | 8/10 | 6208 days | 43% |
| Philippa | 9/10 | 6209 days | 44% |
| Conway | 9/10 | 6209 days | 44% |
| orianne | 10/10 | 6216 days | 44% |
| Caroline | 7/10 | 6216 days | 41% |
| Eike | 9/10 | 6223 days | 44% |
| Benni | 7/10 | 6225 days | 41% |
| John | 6/10 | 6228 days | 38% |
| Dan | 9/10 | 6232 days | 44% |
| Sally | 9/10 | 6232 days | 44% |
| Rosa | 4/10 | 6232 days | 28% |
| Sascha | 7/10 | 6233 days | 41% |
| Dassel | 8/10 | 6233 days | 43% |
| Eric | 3/10 | 6234 days | 22% |
| Charlie | 9/10 | 6239 days | 44% |
| tommfuller | 7/10 | 6243 days | 41% |
| Anouk | 9/10 | 6271 days | 44% |
| MissTraveller2009 | 10/10 | 6280 days | 44% |
| David | 9/10 | 6284 days | 44% |
| Laura | 9/10 | 6284 days | 44% |
| Adam | 8/10 | 6289 days | 43% |
| mike brett | 7/10 | 6293 days | 41% |
| georgepearse | 9/10 | 6330 days | 44% |
| Aoife | 8/10 | 6333 days | 43% |
| Davina | 8/10 | 6334 days | 43% |
| Kath | 10/10 | 6336 days | 44% |
| Kate | 8/10 | 6345 days | 43% |
| Brenda | 8/10 | 6345 days | 43% |
| Amy | 8/10 | 6354 days | 43% |
| Katie | 10/10 | 6354 days | 44% |
| Christoffer | 10/10 | 6356 days | 44% |
| Rebecca | 9/10 | 6356 days | 44% |
| Suyin | 10/10 | 6356 days | 44% |
| Sarah | 6/10 | 6365 days | 38% |
| Michaela | 9/10 | 6369 days | 44% |
| Christopher | 6/10 | 6369 days | 38% |
| James | 8/10 | 6369 days | 43% |
| Sam Prior | 8/10 | 6374 days | 43% |
| jillian | 8/10 | 6378 days | 43% |
| George Burgas | 9/10 | 6383 days | 44% |
| stain weedman | 6/10 | 6389 days | 38% |
| Sharon Curly | 9/10 | 6391 days | 44% |
| Peddy | 7/10 | 6395 days | 41% |
| Tim | 5/10 | 6411 days | 33% |
| Thomas Fillary | 9/10 | 6427 days | 44% |
| Sjoerd | 8/10 | 6433 days | 43% |
| Gemma Harling | 9/10 | 6433 days | 44% |
| Charlie Bond | 9/10 | 6440 days | 44% |
| Florencia Cortese | 10/10 | 6501 days | 44% |
| Meike Biel | 7/10 | 6509 days | 41% |
| Helen | 9/10 | 6509 days | 44% |
| Ellie | 9/10 | 6521 days | 44% |
| Daniel | 7/10 | 6539 days | 41% |
| Omer Harron | 9/10 | 6539 days | 44% |
| Yayami Kimura | 10/10 | 6542 days | 44% |
| Kieran Concarr | 9/10 | 6542 days | 44% |
| Christian | 8/10 | 6546 days | 43% |
| Kathrin | 9/10 | 6550 days | 44% |
| Andreas Brett | 8/10 | 6552 days | 43% |
| Kristine Clemmensen Rotne | 7/10 | 6552 days | 41% |
| helga | 6/10 | 6552 days | 38% |
| Emily Houston | 10/10 | 6556 days | 44% |
| Hannah Holmes | 8/10 | 6559 days | 43% |
| Lisa Tame | 9/10 | 6560 days | 44% |
| Kelly | 9/10 | 6563 days | 44% |
| Stephanie | 10/10 | 6571 days | 44% |
| Sayaka | 7/10 | 6571 days | 41% |
| Marc Hertogs | 8/10 | 6575 days | 43% |
| Tanya Berthoud | 9/10 | 6577 days | 44% |
| Van Hoof | 8/10 | 6599 days | 43% |
| Berger | 8/10 | 6606 days | 43% |
| Travis Brennan | 9/10 | 6618 days | 44% |
| Alexis | 10/10 | 6633 days | 44% |
| Martine Arsac | 5/10 | 6641 days | 33% |
| Frida | 8/10 | 6643 days | 43% |
| Ben | 10/10 | 6644 days | 44% |
| Wendy Williams | 8/10 | 6651 days | 43% |
| Charlie Wilson | 10/10 | 6726 days | 44% |
| Ian Coldrake | 8/10 | 6726 days | 43% |
| Jill Bourke | 10/10 | 6731 days | 44% |
| Andy Chapman | 8/10 | 6761 days | 43% |
| Shelley | 10/10 | 6866 days | 44% |
| Will | 9/10 | 6875 days | 44% |
| Michael | 9/10 | 6877 days | 44% |
| Sue | 8/10 | 6877 days | 43% |
| Stefan | 8/10 | 6880 days | 43% |
| Jenny | 8/10 | 6883 days | 43% |
| Kate | 8/10 | 6885 days | 43% |
| Paul Yacoumis | 7/10 | 6887 days | 41% |
| Kathryn | 9/10 | 6892 days | 44% |
| Celia | 9/10 | 6894 days | 44% |
| Annelte | 4/10 | 6895 days | 28% |
| IdanNakash | 8/10 | 6895 days | 43% |
| Martin Christina | 9/10 | 6895 days | 44% |
| Chris | 8/10 | 6896 days | 43% |
| Janneke | 8/10 | 6896 days | 43% |
| Sue Robertson | 10/10 | 6898 days | 44% |
| Fenke | 7/10 | 6901 days | 41% |
| Bas | 7/10 | 6901 days | 41% |
| Daniel | 9/10 | 6903 days | 44% |
| Susan | 6/10 | 6909 days | 38% |
| ErikVanDam | 9/10 | 6915 days | 44% |
| MariaNorman | 9/10 | 6915 days | 44% |
| MarcHarris | 8/10 | 6915 days | 43% |
| Helena | 10/10 | 6915 days | 44% |
| Sarah | 10/10 | 6924 days | 44% |
| beesom | 8/10 | 6925 days | 43% |
| Peter | 5/10 | 6929 days | 33% |
| Sonja | 7/10 | 6936 days | 41% |
| Leah | 8/10 | 6937 days | 43% |
| Sarah | 10/10 | 6957 days | 44% |
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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 51 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 | -4.09% |
| 198 | -4.11% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.18% |
| 202 | -4.20% |
| 203 | -4.22% |
| … | … |
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.