Hey, 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
85.18%
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 | 3440 days | 100% |
| Jessica Freeland | 10/10 | 3501 days | 93% |
| Nanna Overbeck | 10/10 | 3513 days | 91% |
| Joe Rogers | 9/10 | 3794 days | 58% |
| Nicola Wiggan | 9/10 | 3863 days | 50% |
| Ben McDougal | 10/10 | 3885 days | 48% |
| Maria Schober | 5/10 | 4172 days | 9% |
| Helen Parsons | 1/10 | 4180 days | 0% |
| Elisa Felising | 7/10 | 4180 days | 12% |
| Claudia de Winter | 9/10 | 4492 days | 49% |
| Penny Lee | 9/10 | 4494 days | 49% |
| Jeroen Suijlang | 8/10 | 4494 days | 49% |
| Ludvig Fagerstrom | 8/10 | 4568 days | 49% |
| Marco Schmidt | 10/10 | 4865 days | 50% |
| Christian Schumacher | 10/10 | 4865 days | 50% |
| Jennifer Bramstad | 8/10 | 4885 days | 49% |
| Evelina Johansson | 8/10 | 4885 days | 49% |
| Sofia Anderson | 10/10 | 4885 days | 50% |
| Steve | 5/10 | 4886 days | 36% |
| Janine Kohlgrueler | 9/10 | 4893 days | 49% |
| Fraser Goldsmith | 9/10 | 4910 days | 49% |
| Nigel Leighton | 10/10 | 4964 days | 50% |
| Jonathan Vondette | 7/10 | 4967 days | 46% |
| Andreas and Christine and Nora Busch | 10/10 | 4975 days | 50% |
| lavonc | 3/10 | 5006 days | 23% |
| peterpiper | 10/10 | 5190 days | 50% |
| sandytemp22 | 10/10 | 5220 days | 50% |
| Laura vanGool | 10/10 | 5236 days | 50% |
| Barbara Berkhout | 7/10 | 5236 days | 46% |
| Jurgen Joyce | 8/10 | 5243 days | 49% |
| Carole Carter | 9/10 | 5243 days | 49% |
| Sabrina Germany | 9/10 | 5246 days | 49% |
| J Jmal | 10/10 | 5247 days | 50% |
| Malena | 10/10 | 5251 days | 50% |
| Erik | 10/10 | 5253 days | 50% |
| Marion Hassink | 8/10 | 5257 days | 49% |
| Baas | 8/10 | 5260 days | 49% |
| Barbara | 10/10 | 5261 days | 50% |
| Rebecca Richardson | 8/10 | 5262 days | 49% |
| Andrew Powell | 7/10 | 5262 days | 46% |
| Andy Bridgman | 8/10 | 5265 days | 49% |
| Aoife Lillis | 7/10 | 5268 days | 46% |
| Rainer Schnell | 8/10 | 5272 days | 49% |
| Filsack | 8/10 | 5272 days | 49% |
| Hazel | 10/10 | 5273 days | 50% |
| Frank Waskikowski | 9/10 | 5274 days | 49% |
| Andreas Kristiansen | 9/10 | 5274 days | 49% |
| Robert MacLeod-Smith | 8/10 | 5276 days | 49% |
| Chris Marsh | 6/10 | 5277 days | 42% |
| Jessica Lane | 7/10 | 5277 days | 46% |
| Francis Corrigan | 7/10 | 5281 days | 46% |
| Laura Smith | 9/10 | 5293 days | 49% |
| Dean | 8/10 | 5326 days | 49% |
| Berry | 10/10 | 5353 days | 50% |
| Steve | 9/10 | 5356 days | 49% |
| MaggieYChaChi | 9/10 | 5433 days | 49% |
| GenH | 9/10 | 5556 days | 49% |
| Allison Meyoz | 9/10 | 5562 days | 49% |
| G Tulloch | 9/10 | 5580 days | 49% |
| Stephen Hunt | 9/10 | 5582 days | 49% |
| Thomas Klebensberger | 10/10 | 5582 days | 50% |
| Therea | 10/10 | 5585 days | 50% |
| Sean Brownell | 7/10 | 5586 days | 46% |
| Laura Thrower | 10/10 | 5591 days | 50% |
| David Taylor | 9/10 | 5591 days | 49% |
| Stefan Schmitz | 8/10 | 5599 days | 49% |
| Marii Joekalda | 8/10 | 5600 days | 49% |
| Frank & Ruth | 6/10 | 5601 days | 42% |
| Nathalie | 10/10 | 5601 days | 50% |
| Jo Meekley | 7/10 | 5601 days | 46% |
| Margit and Corein Groenevelt | 8/10 | 5603 days | 49% |
| Judith | 9/10 | 5603 days | 49% |
| Ven | 8/10 | 5603 days | 49% |
| Florian | 8/10 | 5607 days | 49% |
| Helen | 9/10 | 5607 days | 49% |
| Juliane Kleiu | 10/10 | 5607 days | 50% |
| Paula Dove | 10/10 | 5607 days | 50% |
| Erin | 8/10 | 5608 days | 49% |
| Walter Buschta | 8/10 | 5608 days | 49% |
| Wouter Moui | 6/10 | 5609 days | 42% |
| K Dahmer | 8/10 | 5610 days | 49% |
| Jonathan Cree | 9/10 | 5610 days | 49% |
| Laura Leigh | 10/10 | 5610 days | 50% |
| Ann-Kathrin Auditor | 10/10 | 5611 days | 50% |
| Katherine Forward | 8/10 | 5611 days | 49% |
| Chris Ashton | 10/10 | 5611 days | 50% |
| Jerry & Floon | 7/10 | 5615 days | 46% |
| Hadar Zevulun | 9/10 | 5616 days | 49% |
| Grumbach | 9/10 | 5620 days | 49% |
| Caroline Sheridan | 9/10 | 5621 days | 49% |
| Chris Darlington | 10/10 | 5625 days | 50% |
| Cheryl | 10/10 | 5635 days | 50% |
| Mark Aarts | 9/10 | 5636 days | 49% |
| Samuel Prechel | 8/10 | 5637 days | 49% |
| Dave and Lin Mungham | 10/10 | 5638 days | 50% |
| Gordon Daniels | 8/10 | 5640 days | 49% |
| Dr Dorthe Bossow | 3/10 | 5641 days | 23% |
| Helen Gilbertson | 8/10 | 5644 days | 49% |
| Doris Neuber | 9/10 | 5644 days | 49% |
| Ashleigh Buckley | 8/10 | 5645 days | 49% |
| PerspirationJournal | 10/10 | 5737 days | 50% |
| alku83 | 10/10 | 5737 days | 50% |
| Mary Van | 8/10 | 5798 days | 49% |
| chloe1111 | 10/10 | 5921 days | 50% |
| jenniferuk | 9/10 | 5921 days | 49% |
| Peter and Hilda | 10/10 | 5951 days | 50% |
| Einar | 9/10 | 5970 days | 49% |
| Inbar Yizhar Barnea | 8/10 | 5970 days | 49% |
| Tanya | 9/10 | 5975 days | 49% |
| Jana Steve | 10/10 | 5976 days | 50% |
| Yasmin Abrahams | 7/10 | 5984 days | 46% |
| Barbara & Sven | 10/10 | 5984 days | 50% |
| Judith | 8/10 | 5988 days | 49% |
| Henrik Hougs | 8/10 | 5990 days | 49% |
| Chris Glasg | 9/10 | 5990 days | 49% |
| Michael | 10/10 | 5992 days | 50% |
| Gary Ebrig | 10/10 | 5995 days | 50% |
| Mathias | 9/10 | 5997 days | 49% |
| Jamie | 9/10 | 6002 days | 49% |
| David Hobson | 8/10 | 6002 days | 49% |
| Christian | 10/10 | 6002 days | 50% |
| vanijzendoor | 8/10 | 6005 days | 49% |
| Dick Rosman | 8/10 | 6006 days | 49% |
| Frances Hay | 8/10 | 6009 days | 49% |
| Chance McGuire | 10/10 | 6010 days | 50% |
| Kevin and Teresa | 8/10 | 6010 days | 49% |
| Ben Miklozek | 9/10 | 6010 days | 49% |
| Marianne Lovdal | 9/10 | 6010 days | 49% |
| Jessica | 5/10 | 6015 days | 36% |
| S Luis Van Oler | 6/10 | 6015 days | 42% |
| sophiep | 8/10 | 6056 days | 49% |
| katharinatum | 9/10 | 6056 days | 49% |
| koellner | 6/10 | 6070 days | 42% |
| chrish1 | 9/10 | 6072 days | 49% |
| Fred Findlay | 7/10 | 6084 days | 46% |
| maleta | 9/10 | 6093 days | 49% |
| Gemma Morris | 10/10 | 6095 days | 50% |
| TomL | 10/10 | 6102 days | 50% |
| Pauline Wan | 7/10 | 6102 days | 46% |
| eowyn2k | 7/10 | 6102 days | 46% |
| Suzanne | 9/10 | 6133 days | 49% |
| terryd | 9/10 | 6194 days | 49% |
| kindel | 6/10 | 6198 days | 42% |
| Emear Donnelly | 10/10 | 6237 days | 50% |
| zoed | 7/10 | 6271 days | 46% |
| steph_m | 9/10 | 6286 days | 49% |
| Charles Lyne | 10/10 | 6286 days | 50% |
| BenM1 | 7/10 | 6295 days | 46% |
| KimC | 8/10 | 6304 days | 49% |
| JonK | 8/10 | 6304 days | 49% |
| TschaneK | 10/10 | 6306 days | 50% |
| RogerW | 10/10 | 6308 days | 50% |
| NicolaW | 10/10 | 6308 days | 50% |
| Lisa Duin | 8/10 | 6314 days | 49% |
| Joanna Harrnon | 9/10 | 6315 days | 49% |
| David | 8/10 | 6316 days | 49% |
| johnst | 10/10 | 6316 days | 50% |
| Adi | 10/10 | 6316 days | 50% |
| Sally477 | 9/10 | 6317 days | 49% |
| Becca1 | 9/10 | 6318 days | 49% |
| Jelle | 8/10 | 6319 days | 49% |
| Denys | 8/10 | 6320 days | 49% |
| Ronny | 9/10 | 6320 days | 49% |
| Viktoria Stoffel | 10/10 | 6323 days | 50% |
| Jon Li | 9/10 | 6328 days | 49% |
| Han Disveld | 9/10 | 6328 days | 49% |
| BevanLisa | 10/10 | 6333 days | 50% |
| SabineGermany | 10/10 | 6334 days | 50% |
| StefanGermany1 | 9/10 | 6334 days | 49% |
| AnjaC | 7/10 | 6334 days | 46% |
| AnjaChrist | 7/10 | 6334 days | 46% |
| Torsten | 9/10 | 6335 days | 49% |
| MarcoJ | 8/10 | 6336 days | 49% |
| James O'Neil | 10/10 | 6336 days | 50% |
| Barry Smith | 10/10 | 6336 days | 50% |
| Siemens | 8/10 | 6336 days | 49% |
| AlexH | 10/10 | 6337 days | 50% |
| AnnickH | 6/10 | 6338 days | 42% |
| Rene | 8/10 | 6339 days | 49% |
| Dorothee | 8/10 | 6339 days | 49% |
| Rob | 7/10 | 6339 days | 46% |
| Mike | 6/10 | 6340 days | 42% |
| TammyH | 9/10 | 6342 days | 49% |
| Lynn White | 7/10 | 6342 days | 46% |
| Mette | 8/10 | 6346 days | 49% |
| Axel | 5/10 | 6346 days | 36% |
| amyd | 8/10 | 6347 days | 49% |
| Susan | 9/10 | 6348 days | 49% |
| lannie | 5/10 | 6349 days | 36% |
| XaviG | 9/10 | 6350 days | 49% |
| ChenM | 8/10 | 6350 days | 49% |
| Steven | 9/10 | 6350 days | 49% |
| CarleyJ | 8/10 | 6350 days | 49% |
| JesusB | 7/10 | 6350 days | 46% |
| GingerPrince | 9/10 | 6350 days | 49% |
| Steve | 10/10 | 6350 days | 50% |
| Claudia | 9/10 | 6352 days | 49% |
| Pascal | 8/10 | 6352 days | 49% |
| Karen | 9/10 | 6355 days | 49% |
| RandiL | 7/10 | 6358 days | 46% |
| IreneF | 9/10 | 6359 days | 49% |
| Rachel | 8/10 | 6365 days | 49% |
| Adi | 10/10 | 6365 days | 50% |
| Claire | 8/10 | 6365 days | 49% |
| Philippa | 9/10 | 6366 days | 49% |
| Conway | 9/10 | 6366 days | 49% |
| orianne | 10/10 | 6373 days | 50% |
| Caroline | 7/10 | 6373 days | 46% |
| Eike | 9/10 | 6380 days | 49% |
| Benni | 7/10 | 6382 days | 46% |
| John | 6/10 | 6385 days | 42% |
| Dan | 9/10 | 6389 days | 49% |
| Sally | 9/10 | 6389 days | 49% |
| Rosa | 4/10 | 6389 days | 29% |
| Sascha | 7/10 | 6390 days | 46% |
| Dassel | 8/10 | 6390 days | 49% |
| Eric | 3/10 | 6391 days | 23% |
| Charlie | 9/10 | 6396 days | 49% |
| tommfuller | 7/10 | 6400 days | 46% |
| Anouk | 9/10 | 6428 days | 49% |
| MissTraveller2009 | 10/10 | 6437 days | 50% |
| David | 9/10 | 6441 days | 49% |
| Laura | 9/10 | 6441 days | 49% |
| Adam | 8/10 | 6446 days | 49% |
| mike brett | 7/10 | 6450 days | 46% |
| georgepearse | 9/10 | 6487 days | 49% |
| Aoife | 8/10 | 6490 days | 49% |
| Davina | 8/10 | 6491 days | 49% |
| Kath | 10/10 | 6493 days | 50% |
| Kate | 8/10 | 6502 days | 49% |
| Brenda | 8/10 | 6502 days | 49% |
| Amy | 8/10 | 6511 days | 49% |
| Katie | 10/10 | 6511 days | 50% |
| Christoffer | 10/10 | 6513 days | 50% |
| Rebecca | 9/10 | 6513 days | 49% |
| Suyin | 10/10 | 6513 days | 50% |
| Sarah | 6/10 | 6522 days | 42% |
| Michaela | 9/10 | 6526 days | 49% |
| Christopher | 6/10 | 6526 days | 42% |
| James | 8/10 | 6526 days | 49% |
| Sam Prior | 8/10 | 6531 days | 49% |
| jillian | 8/10 | 6535 days | 49% |
| George Burgas | 9/10 | 6540 days | 49% |
| stain weedman | 6/10 | 6546 days | 42% |
| Sharon Curly | 9/10 | 6548 days | 49% |
| Peddy | 7/10 | 6552 days | 46% |
| Tim | 5/10 | 6568 days | 36% |
| Thomas Fillary | 9/10 | 6584 days | 49% |
| Sjoerd | 8/10 | 6590 days | 49% |
| Gemma Harling | 9/10 | 6590 days | 49% |
| Charlie Bond | 9/10 | 6597 days | 49% |
| Florencia Cortese | 10/10 | 6658 days | 50% |
| Meike Biel | 7/10 | 6666 days | 46% |
| Helen | 9/10 | 6666 days | 49% |
| Ellie | 9/10 | 6678 days | 49% |
| Daniel | 7/10 | 6696 days | 46% |
| Omer Harron | 9/10 | 6696 days | 49% |
| Yayami Kimura | 10/10 | 6699 days | 50% |
| Kieran Concarr | 9/10 | 6699 days | 49% |
| Christian | 8/10 | 6703 days | 49% |
| Kathrin | 9/10 | 6707 days | 49% |
| Andreas Brett | 8/10 | 6709 days | 49% |
| Kristine Clemmensen Rotne | 7/10 | 6709 days | 46% |
| helga | 6/10 | 6709 days | 42% |
| Emily Houston | 10/10 | 6713 days | 50% |
| Hannah Holmes | 8/10 | 6716 days | 49% |
| Lisa Tame | 9/10 | 6717 days | 49% |
| Kelly | 9/10 | 6720 days | 49% |
| Stephanie | 10/10 | 6728 days | 50% |
| Sayaka | 7/10 | 6728 days | 46% |
| Marc Hertogs | 8/10 | 6732 days | 49% |
| Tanya Berthoud | 9/10 | 6734 days | 49% |
| Van Hoof | 8/10 | 6756 days | 49% |
| Berger | 8/10 | 6763 days | 49% |
| Travis Brennan | 9/10 | 6776 days | 49% |
| Alexis | 10/10 | 6790 days | 50% |
| Martine Arsac | 5/10 | 6798 days | 36% |
| Frida | 8/10 | 6800 days | 49% |
| Ben | 10/10 | 6801 days | 50% |
| Wendy Williams | 8/10 | 6808 days | 49% |
| Charlie Wilson | 10/10 | 6883 days | 50% |
| Ian Coldrake | 8/10 | 6883 days | 49% |
| Jill Bourke | 10/10 | 6888 days | 50% |
| Andy Chapman | 8/10 | 6918 days | 49% |
| Shelley | 10/10 | 7023 days | 50% |
| Will | 9/10 | 7032 days | 49% |
| Michael | 9/10 | 7034 days | 49% |
| Sue | 8/10 | 7034 days | 49% |
| Stefan | 8/10 | 7037 days | 49% |
| Jenny | 8/10 | 7040 days | 49% |
| Kate | 8/10 | 7042 days | 49% |
| Paul Yacoumis | 7/10 | 7044 days | 46% |
| Kathryn | 9/10 | 7049 days | 49% |
| Celia | 9/10 | 7051 days | 49% |
| Annelte | 4/10 | 7052 days | 29% |
| IdanNakash | 8/10 | 7052 days | 49% |
| Martin Christina | 9/10 | 7052 days | 49% |
| Chris | 8/10 | 7053 days | 49% |
| Janneke | 8/10 | 7053 days | 49% |
| Sue Robertson | 10/10 | 7055 days | 50% |
| Fenke | 7/10 | 7058 days | 46% |
| Bas | 7/10 | 7058 days | 46% |
| Daniel | 9/10 | 7060 days | 49% |
| Susan | 6/10 | 7066 days | 42% |
| ErikVanDam | 9/10 | 7072 days | 49% |
| MariaNorman | 9/10 | 7072 days | 49% |
| MarcHarris | 8/10 | 7072 days | 49% |
| Helena | 10/10 | 7072 days | 50% |
| Sarah | 10/10 | 7081 days | 50% |
| beesom | 8/10 | 7082 days | 49% |
| Peter | 5/10 | 7086 days | 36% |
| Sonja | 7/10 | 7093 days | 46% |
| Leah | 8/10 | 7094 days | 49% |
| Sarah | 10/10 | 7114 days | 50% |
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
-2.00% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 125 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 | -1.97% |
| 198 | -1.98% |
| 199 | -1.99% |
| 200 | -2.00% |
| 201 | -2.01% |
| 202 | -2.02% |
| 203 | -2.03% |
| … | … |
Balancing Adjustment
2.21% 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
85%
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.