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
85.18%
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 | 3413 days | 100% |
| Jessica Freeland | 10/10 | 3474 days | 93% |
| Nanna Overbeck | 10/10 | 3486 days | 92% |
| Joe Rogers | 9/10 | 3767 days | 59% |
| Nicola Wiggan | 9/10 | 3836 days | 51% |
| Ben McDougal | 10/10 | 3858 days | 49% |
| Maria Schober | 5/10 | 4145 days | 10% |
| Helen Parsons | 1/10 | 4153 days | 0% |
| Elisa Felising | 7/10 | 4153 days | 14% |
| Claudia de Winter | 9/10 | 4465 days | 47% |
| Penny Lee | 9/10 | 4467 days | 47% |
| Jeroen Suijlang | 8/10 | 4467 days | 47% |
| Ludvig Fagerstrom | 8/10 | 4541 days | 47% |
| Marco Schmidt | 10/10 | 4838 days | 48% |
| Christian Schumacher | 10/10 | 4838 days | 48% |
| Jennifer Bramstad | 8/10 | 4858 days | 47% |
| Evelina Johansson | 8/10 | 4858 days | 47% |
| Sofia Anderson | 10/10 | 4858 days | 48% |
| Steve | 5/10 | 4859 days | 34% |
| Janine Kohlgrueler | 9/10 | 4866 days | 47% |
| Fraser Goldsmith | 9/10 | 4883 days | 47% |
| Nigel Leighton | 10/10 | 4937 days | 48% |
| Jonathan Vondette | 7/10 | 4940 days | 44% |
| Andreas and Christine and Nora Busch | 10/10 | 4948 days | 48% |
| lavonc | 3/10 | 4979 days | 21% |
| peterpiper | 10/10 | 5163 days | 48% |
| sandytemp22 | 10/10 | 5193 days | 48% |
| Laura vanGool | 10/10 | 5209 days | 48% |
| Barbara Berkhout | 7/10 | 5209 days | 44% |
| Jurgen Joyce | 8/10 | 5216 days | 47% |
| Carole Carter | 9/10 | 5216 days | 47% |
| Sabrina Germany | 9/10 | 5219 days | 47% |
| J Jmal | 10/10 | 5220 days | 48% |
| Malena | 10/10 | 5224 days | 48% |
| Erik | 10/10 | 5226 days | 48% |
| Marion Hassink | 8/10 | 5230 days | 47% |
| Baas | 8/10 | 5233 days | 47% |
| Barbara | 10/10 | 5234 days | 48% |
| Rebecca Richardson | 8/10 | 5235 days | 47% |
| Andrew Powell | 7/10 | 5235 days | 44% |
| Andy Bridgman | 8/10 | 5238 days | 47% |
| Aoife Lillis | 7/10 | 5241 days | 44% |
| Rainer Schnell | 8/10 | 5245 days | 47% |
| Filsack | 8/10 | 5245 days | 47% |
| Hazel | 10/10 | 5246 days | 48% |
| Frank Waskikowski | 9/10 | 5247 days | 47% |
| Andreas Kristiansen | 9/10 | 5247 days | 47% |
| Robert MacLeod-Smith | 8/10 | 5249 days | 47% |
| Chris Marsh | 6/10 | 5250 days | 40% |
| Jessica Lane | 7/10 | 5250 days | 44% |
| Francis Corrigan | 7/10 | 5254 days | 44% |
| Laura Smith | 9/10 | 5266 days | 47% |
| Dean | 8/10 | 5299 days | 47% |
| Berry | 10/10 | 5326 days | 48% |
| Steve | 9/10 | 5329 days | 47% |
| MaggieYChaChi | 9/10 | 5406 days | 47% |
| GenH | 9/10 | 5529 days | 47% |
| Allison Meyoz | 9/10 | 5535 days | 47% |
| G Tulloch | 9/10 | 5553 days | 47% |
| Stephen Hunt | 9/10 | 5555 days | 47% |
| Thomas Klebensberger | 10/10 | 5555 days | 48% |
| Therea | 10/10 | 5558 days | 48% |
| Sean Brownell | 7/10 | 5559 days | 44% |
| Laura Thrower | 10/10 | 5564 days | 48% |
| David Taylor | 9/10 | 5564 days | 47% |
| Stefan Schmitz | 8/10 | 5572 days | 47% |
| Marii Joekalda | 8/10 | 5573 days | 47% |
| Frank & Ruth | 6/10 | 5574 days | 40% |
| Nathalie | 10/10 | 5574 days | 48% |
| Jo Meekley | 7/10 | 5574 days | 44% |
| Margit and Corein Groenevelt | 8/10 | 5576 days | 47% |
| Judith | 9/10 | 5576 days | 47% |
| Ven | 8/10 | 5576 days | 47% |
| Florian | 8/10 | 5580 days | 47% |
| Helen | 9/10 | 5580 days | 47% |
| Juliane Kleiu | 10/10 | 5580 days | 48% |
| Paula Dove | 10/10 | 5580 days | 48% |
| Erin | 8/10 | 5581 days | 47% |
| Walter Buschta | 8/10 | 5581 days | 47% |
| Wouter Moui | 6/10 | 5582 days | 40% |
| K Dahmer | 8/10 | 5583 days | 47% |
| Jonathan Cree | 9/10 | 5583 days | 47% |
| Laura Leigh | 10/10 | 5583 days | 48% |
| Ann-Kathrin Auditor | 10/10 | 5584 days | 48% |
| Katherine Forward | 8/10 | 5584 days | 47% |
| Chris Ashton | 10/10 | 5584 days | 48% |
| Jerry & Floon | 7/10 | 5588 days | 44% |
| Hadar Zevulun | 9/10 | 5589 days | 47% |
| Grumbach | 9/10 | 5593 days | 47% |
| Caroline Sheridan | 9/10 | 5594 days | 47% |
| Chris Darlington | 10/10 | 5598 days | 48% |
| Cheryl | 10/10 | 5608 days | 48% |
| Mark Aarts | 9/10 | 5609 days | 47% |
| Samuel Prechel | 8/10 | 5610 days | 47% |
| Dave and Lin Mungham | 10/10 | 5611 days | 48% |
| Gordon Daniels | 8/10 | 5613 days | 47% |
| Dr Dorthe Bossow | 3/10 | 5614 days | 21% |
| Helen Gilbertson | 8/10 | 5617 days | 47% |
| Doris Neuber | 9/10 | 5617 days | 47% |
| Ashleigh Buckley | 8/10 | 5618 days | 47% |
| PerspirationJournal | 10/10 | 5710 days | 48% |
| alku83 | 10/10 | 5710 days | 48% |
| Mary Van | 8/10 | 5771 days | 47% |
| chloe1111 | 10/10 | 5894 days | 48% |
| jenniferuk | 9/10 | 5894 days | 47% |
| Peter and Hilda | 10/10 | 5924 days | 48% |
| Einar | 9/10 | 5943 days | 47% |
| Inbar Yizhar Barnea | 8/10 | 5943 days | 47% |
| Tanya | 9/10 | 5948 days | 47% |
| Jana Steve | 10/10 | 5949 days | 48% |
| Yasmin Abrahams | 7/10 | 5957 days | 44% |
| Barbara & Sven | 10/10 | 5957 days | 48% |
| Judith | 8/10 | 5961 days | 47% |
| Henrik Hougs | 8/10 | 5963 days | 47% |
| Chris Glasg | 9/10 | 5963 days | 47% |
| Michael | 10/10 | 5965 days | 48% |
| Gary Ebrig | 10/10 | 5968 days | 48% |
| Mathias | 9/10 | 5970 days | 47% |
| Jamie | 9/10 | 5975 days | 47% |
| David Hobson | 8/10 | 5975 days | 47% |
| Christian | 10/10 | 5975 days | 48% |
| vanijzendoor | 8/10 | 5978 days | 47% |
| Dick Rosman | 8/10 | 5979 days | 47% |
| Frances Hay | 8/10 | 5982 days | 47% |
| Chance McGuire | 10/10 | 5983 days | 48% |
| Kevin and Teresa | 8/10 | 5983 days | 47% |
| Ben Miklozek | 9/10 | 5983 days | 47% |
| Marianne Lovdal | 9/10 | 5983 days | 47% |
| Jessica | 5/10 | 5988 days | 34% |
| S Luis Van Oler | 6/10 | 5988 days | 40% |
| sophiep | 8/10 | 6029 days | 47% |
| katharinatum | 9/10 | 6029 days | 47% |
| koellner | 6/10 | 6043 days | 40% |
| chrish1 | 9/10 | 6045 days | 47% |
| Fred Findlay | 7/10 | 6057 days | 44% |
| maleta | 9/10 | 6066 days | 47% |
| Gemma Morris | 10/10 | 6068 days | 48% |
| TomL | 10/10 | 6075 days | 48% |
| Pauline Wan | 7/10 | 6075 days | 44% |
| eowyn2k | 7/10 | 6075 days | 44% |
| Suzanne | 9/10 | 6106 days | 47% |
| terryd | 9/10 | 6167 days | 47% |
| kindel | 6/10 | 6171 days | 40% |
| Emear Donnelly | 10/10 | 6210 days | 48% |
| zoed | 7/10 | 6244 days | 44% |
| steph_m | 9/10 | 6259 days | 47% |
| Charles Lyne | 10/10 | 6259 days | 48% |
| BenM1 | 7/10 | 6268 days | 44% |
| KimC | 8/10 | 6277 days | 47% |
| JonK | 8/10 | 6277 days | 47% |
| TschaneK | 10/10 | 6279 days | 48% |
| RogerW | 10/10 | 6281 days | 48% |
| NicolaW | 10/10 | 6281 days | 48% |
| Lisa Duin | 8/10 | 6287 days | 47% |
| Joanna Harrnon | 9/10 | 6288 days | 47% |
| David | 8/10 | 6289 days | 47% |
| johnst | 10/10 | 6289 days | 48% |
| Adi | 10/10 | 6289 days | 48% |
| Sally477 | 9/10 | 6290 days | 47% |
| Becca1 | 9/10 | 6291 days | 47% |
| Jelle | 8/10 | 6292 days | 47% |
| Denys | 8/10 | 6293 days | 47% |
| Ronny | 9/10 | 6293 days | 47% |
| Viktoria Stoffel | 10/10 | 6296 days | 48% |
| Jon Li | 9/10 | 6301 days | 47% |
| Han Disveld | 9/10 | 6301 days | 47% |
| BevanLisa | 10/10 | 6306 days | 48% |
| SabineGermany | 10/10 | 6307 days | 48% |
| StefanGermany1 | 9/10 | 6307 days | 47% |
| AnjaC | 7/10 | 6307 days | 44% |
| AnjaChrist | 7/10 | 6307 days | 44% |
| Torsten | 9/10 | 6308 days | 47% |
| MarcoJ | 8/10 | 6309 days | 47% |
| James O'Neil | 10/10 | 6309 days | 48% |
| Barry Smith | 10/10 | 6309 days | 48% |
| Siemens | 8/10 | 6309 days | 47% |
| AlexH | 10/10 | 6310 days | 48% |
| AnnickH | 6/10 | 6311 days | 40% |
| Rene | 8/10 | 6312 days | 47% |
| Dorothee | 8/10 | 6312 days | 47% |
| Rob | 7/10 | 6312 days | 44% |
| Mike | 6/10 | 6313 days | 40% |
| TammyH | 9/10 | 6315 days | 47% |
| Lynn White | 7/10 | 6315 days | 44% |
| Mette | 8/10 | 6319 days | 47% |
| Axel | 5/10 | 6319 days | 34% |
| amyd | 8/10 | 6320 days | 47% |
| Susan | 9/10 | 6321 days | 47% |
| lannie | 5/10 | 6322 days | 34% |
| XaviG | 9/10 | 6323 days | 47% |
| ChenM | 8/10 | 6323 days | 47% |
| Steven | 9/10 | 6323 days | 47% |
| CarleyJ | 8/10 | 6323 days | 47% |
| JesusB | 7/10 | 6323 days | 44% |
| GingerPrince | 9/10 | 6323 days | 47% |
| Steve | 10/10 | 6323 days | 48% |
| Claudia | 9/10 | 6325 days | 47% |
| Pascal | 8/10 | 6325 days | 47% |
| Karen | 9/10 | 6328 days | 47% |
| RandiL | 7/10 | 6331 days | 44% |
| IreneF | 9/10 | 6332 days | 47% |
| Rachel | 8/10 | 6338 days | 47% |
| Adi | 10/10 | 6338 days | 48% |
| Claire | 8/10 | 6338 days | 47% |
| Philippa | 9/10 | 6339 days | 47% |
| Conway | 9/10 | 6339 days | 47% |
| orianne | 10/10 | 6346 days | 48% |
| Caroline | 7/10 | 6346 days | 44% |
| Eike | 9/10 | 6353 days | 47% |
| Benni | 7/10 | 6355 days | 44% |
| John | 6/10 | 6358 days | 40% |
| Dan | 9/10 | 6362 days | 47% |
| Sally | 9/10 | 6362 days | 47% |
| Rosa | 4/10 | 6362 days | 28% |
| Sascha | 7/10 | 6363 days | 44% |
| Dassel | 8/10 | 6363 days | 47% |
| Eric | 3/10 | 6364 days | 21% |
| Charlie | 9/10 | 6369 days | 47% |
| tommfuller | 7/10 | 6373 days | 44% |
| Anouk | 9/10 | 6401 days | 47% |
| MissTraveller2009 | 10/10 | 6410 days | 48% |
| David | 9/10 | 6415 days | 47% |
| Laura | 9/10 | 6415 days | 47% |
| Adam | 8/10 | 6419 days | 47% |
| mike brett | 7/10 | 6423 days | 44% |
| georgepearse | 9/10 | 6460 days | 47% |
| Aoife | 8/10 | 6463 days | 47% |
| Davina | 8/10 | 6464 days | 47% |
| Kath | 10/10 | 6466 days | 48% |
| Kate | 8/10 | 6475 days | 47% |
| Brenda | 8/10 | 6475 days | 47% |
| Amy | 8/10 | 6484 days | 47% |
| Katie | 10/10 | 6484 days | 48% |
| Christoffer | 10/10 | 6486 days | 48% |
| Rebecca | 9/10 | 6486 days | 47% |
| Suyin | 10/10 | 6487 days | 48% |
| Sarah | 6/10 | 6495 days | 40% |
| Michaela | 9/10 | 6499 days | 47% |
| Christopher | 6/10 | 6499 days | 40% |
| James | 8/10 | 6499 days | 47% |
| Sam Prior | 8/10 | 6504 days | 47% |
| jillian | 8/10 | 6508 days | 47% |
| George Burgas | 9/10 | 6513 days | 47% |
| stain weedman | 6/10 | 6519 days | 40% |
| Sharon Curly | 9/10 | 6521 days | 47% |
| Peddy | 7/10 | 6525 days | 44% |
| Tim | 5/10 | 6541 days | 34% |
| Thomas Fillary | 9/10 | 6557 days | 47% |
| Sjoerd | 8/10 | 6563 days | 47% |
| Gemma Harling | 9/10 | 6563 days | 47% |
| Charlie Bond | 9/10 | 6570 days | 47% |
| Florencia Cortese | 10/10 | 6631 days | 48% |
| Meike Biel | 7/10 | 6639 days | 44% |
| Helen | 9/10 | 6639 days | 47% |
| Ellie | 9/10 | 6651 days | 47% |
| Daniel | 7/10 | 6669 days | 44% |
| Omer Harron | 9/10 | 6669 days | 47% |
| Yayami Kimura | 10/10 | 6672 days | 48% |
| Kieran Concarr | 9/10 | 6672 days | 47% |
| Christian | 8/10 | 6676 days | 47% |
| Kathrin | 9/10 | 6680 days | 47% |
| Andreas Brett | 8/10 | 6682 days | 47% |
| Kristine Clemmensen Rotne | 7/10 | 6682 days | 44% |
| helga | 6/10 | 6682 days | 40% |
| Emily Houston | 10/10 | 6686 days | 48% |
| Hannah Holmes | 8/10 | 6689 days | 47% |
| Lisa Tame | 9/10 | 6690 days | 47% |
| Kelly | 9/10 | 6693 days | 47% |
| Stephanie | 10/10 | 6701 days | 48% |
| Sayaka | 7/10 | 6701 days | 44% |
| Marc Hertogs | 8/10 | 6705 days | 47% |
| Tanya Berthoud | 9/10 | 6707 days | 47% |
| Van Hoof | 8/10 | 6729 days | 47% |
| Berger | 8/10 | 6736 days | 47% |
| Travis Brennan | 9/10 | 6749 days | 47% |
| Alexis | 10/10 | 6763 days | 48% |
| Martine Arsac | 5/10 | 6771 days | 34% |
| Frida | 8/10 | 6773 days | 47% |
| Ben | 10/10 | 6774 days | 48% |
| Wendy Williams | 8/10 | 6781 days | 47% |
| Charlie Wilson | 10/10 | 6856 days | 48% |
| Ian Coldrake | 8/10 | 6856 days | 47% |
| Jill Bourke | 10/10 | 6861 days | 48% |
| Andy Chapman | 8/10 | 6891 days | 47% |
| Shelley | 10/10 | 6996 days | 48% |
| Will | 9/10 | 7005 days | 47% |
| Michael | 9/10 | 7007 days | 47% |
| Sue | 8/10 | 7007 days | 47% |
| Stefan | 8/10 | 7010 days | 47% |
| Jenny | 8/10 | 7013 days | 47% |
| Kate | 8/10 | 7015 days | 47% |
| Paul Yacoumis | 7/10 | 7017 days | 44% |
| Kathryn | 9/10 | 7022 days | 47% |
| Celia | 9/10 | 7024 days | 47% |
| Annelte | 4/10 | 7025 days | 28% |
| IdanNakash | 8/10 | 7025 days | 47% |
| Martin Christina | 9/10 | 7025 days | 47% |
| Chris | 8/10 | 7026 days | 47% |
| Janneke | 8/10 | 7026 days | 47% |
| Sue Robertson | 10/10 | 7028 days | 48% |
| Fenke | 7/10 | 7031 days | 44% |
| Bas | 7/10 | 7031 days | 44% |
| Daniel | 9/10 | 7033 days | 47% |
| Susan | 6/10 | 7039 days | 40% |
| ErikVanDam | 9/10 | 7045 days | 47% |
| MariaNorman | 9/10 | 7045 days | 47% |
| MarcHarris | 8/10 | 7045 days | 47% |
| Helena | 10/10 | 7045 days | 48% |
| Sarah | 10/10 | 7054 days | 48% |
| beesom | 8/10 | 7055 days | 47% |
| Peter | 5/10 | 7059 days | 34% |
| Sonja | 7/10 | 7066 days | 44% |
| Leah | 8/10 | 7067 days | 47% |
| Sarah | 10/10 | 7087 days | 48% |
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
-2.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 118 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 | -2.12% |
| 198 | -2.13% |
| 199 | -2.14% |
| 200 | -2.15% |
| 201 | -2.16% |
| 202 | -2.17% |
| 203 | -2.18% |
| … | … |
Balancing Adjustment
2.24% 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.