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 | 3473 days | 100% |
| Jessica Freeland | 10/10 | 3534 days | 93% |
| Nanna Overbeck | 10/10 | 3546 days | 91% |
| Joe Rogers | 9/10 | 3827 days | 57% |
| Nicola Wiggan | 9/10 | 3896 days | 49% |
| Ben McDougal | 10/10 | 3918 days | 47% |
| Maria Schober | 5/10 | 4205 days | 8% |
| Helen Parsons | 1/10 | 4213 days | 0% |
| Elisa Felising | 7/10 | 4213 days | 10% |
| Claudia de Winter | 9/10 | 4525 days | 52% |
| Penny Lee | 9/10 | 4527 days | 52% |
| Jeroen Suijlang | 8/10 | 4527 days | 52% |
| Ludvig Fagerstrom | 8/10 | 4601 days | 52% |
| Marco Schmidt | 10/10 | 4898 days | 53% |
| Christian Schumacher | 10/10 | 4898 days | 53% |
| Jennifer Bramstad | 8/10 | 4918 days | 52% |
| Evelina Johansson | 8/10 | 4918 days | 52% |
| Sofia Anderson | 10/10 | 4918 days | 53% |
| Steve | 5/10 | 4919 days | 38% |
| Janine Kohlgrueler | 9/10 | 4926 days | 52% |
| Fraser Goldsmith | 9/10 | 4943 days | 52% |
| Nigel Leighton | 10/10 | 4997 days | 53% |
| Jonathan Vondette | 7/10 | 5000 days | 49% |
| Andreas and Christine and Nora Busch | 10/10 | 5008 days | 53% |
| lavonc | 3/10 | 5039 days | 25% |
| peterpiper | 10/10 | 5223 days | 53% |
| sandytemp22 | 10/10 | 5253 days | 53% |
| Laura vanGool | 10/10 | 5269 days | 53% |
| Barbara Berkhout | 7/10 | 5269 days | 49% |
| Jurgen Joyce | 8/10 | 5276 days | 52% |
| Carole Carter | 9/10 | 5276 days | 52% |
| Sabrina Germany | 9/10 | 5279 days | 52% |
| J Jmal | 10/10 | 5280 days | 53% |
| Malena | 10/10 | 5284 days | 53% |
| Erik | 10/10 | 5286 days | 53% |
| Marion Hassink | 8/10 | 5290 days | 52% |
| Baas | 8/10 | 5293 days | 52% |
| Barbara | 10/10 | 5294 days | 53% |
| Rebecca Richardson | 8/10 | 5295 days | 52% |
| Andrew Powell | 7/10 | 5295 days | 49% |
| Andy Bridgman | 8/10 | 5298 days | 52% |
| Aoife Lillis | 7/10 | 5301 days | 49% |
| Rainer Schnell | 8/10 | 5305 days | 52% |
| Filsack | 8/10 | 5305 days | 52% |
| Hazel | 10/10 | 5306 days | 53% |
| Frank Waskikowski | 9/10 | 5307 days | 52% |
| Andreas Kristiansen | 9/10 | 5307 days | 52% |
| Robert MacLeod-Smith | 8/10 | 5309 days | 52% |
| Chris Marsh | 6/10 | 5310 days | 44% |
| Jessica Lane | 7/10 | 5310 days | 49% |
| Francis Corrigan | 7/10 | 5314 days | 49% |
| Laura Smith | 9/10 | 5326 days | 52% |
| Dean | 8/10 | 5359 days | 52% |
| Berry | 10/10 | 5386 days | 53% |
| Steve | 9/10 | 5389 days | 52% |
| MaggieYChaChi | 9/10 | 5466 days | 52% |
| GenH | 9/10 | 5589 days | 52% |
| Allison Meyoz | 9/10 | 5595 days | 52% |
| G Tulloch | 9/10 | 5613 days | 52% |
| Stephen Hunt | 9/10 | 5615 days | 52% |
| Thomas Klebensberger | 10/10 | 5615 days | 53% |
| Therea | 10/10 | 5618 days | 53% |
| Sean Brownell | 7/10 | 5619 days | 49% |
| Laura Thrower | 10/10 | 5624 days | 53% |
| David Taylor | 9/10 | 5624 days | 52% |
| Stefan Schmitz | 8/10 | 5632 days | 52% |
| Marii Joekalda | 8/10 | 5633 days | 52% |
| Frank & Ruth | 6/10 | 5634 days | 44% |
| Nathalie | 10/10 | 5634 days | 53% |
| Jo Meekley | 7/10 | 5634 days | 49% |
| Margit and Corein Groenevelt | 8/10 | 5636 days | 52% |
| Judith | 9/10 | 5636 days | 52% |
| Ven | 8/10 | 5636 days | 52% |
| Florian | 8/10 | 5640 days | 52% |
| Helen | 9/10 | 5640 days | 52% |
| Juliane Kleiu | 10/10 | 5640 days | 53% |
| Paula Dove | 10/10 | 5640 days | 53% |
| Erin | 8/10 | 5641 days | 52% |
| Walter Buschta | 8/10 | 5641 days | 52% |
| Wouter Moui | 6/10 | 5642 days | 44% |
| K Dahmer | 8/10 | 5643 days | 52% |
| Jonathan Cree | 9/10 | 5643 days | 52% |
| Laura Leigh | 10/10 | 5643 days | 53% |
| Ann-Kathrin Auditor | 10/10 | 5644 days | 53% |
| Katherine Forward | 8/10 | 5644 days | 52% |
| Chris Ashton | 10/10 | 5644 days | 53% |
| Jerry & Floon | 7/10 | 5648 days | 49% |
| Hadar Zevulun | 9/10 | 5649 days | 52% |
| Grumbach | 9/10 | 5653 days | 52% |
| Caroline Sheridan | 9/10 | 5654 days | 52% |
| Chris Darlington | 10/10 | 5658 days | 53% |
| Cheryl | 10/10 | 5668 days | 53% |
| Mark Aarts | 9/10 | 5669 days | 52% |
| Samuel Prechel | 8/10 | 5670 days | 52% |
| Dave and Lin Mungham | 10/10 | 5671 days | 53% |
| Gordon Daniels | 8/10 | 5673 days | 52% |
| Dr Dorthe Bossow | 3/10 | 5674 days | 25% |
| Helen Gilbertson | 8/10 | 5677 days | 52% |
| Doris Neuber | 9/10 | 5677 days | 52% |
| Ashleigh Buckley | 8/10 | 5678 days | 52% |
| PerspirationJournal | 10/10 | 5770 days | 53% |
| alku83 | 10/10 | 5770 days | 53% |
| Mary Van | 8/10 | 5831 days | 52% |
| chloe1111 | 10/10 | 5954 days | 53% |
| jenniferuk | 9/10 | 5954 days | 52% |
| Peter and Hilda | 10/10 | 5984 days | 53% |
| Einar | 9/10 | 6003 days | 52% |
| Inbar Yizhar Barnea | 8/10 | 6003 days | 52% |
| Tanya | 9/10 | 6008 days | 52% |
| Jana Steve | 10/10 | 6009 days | 53% |
| Yasmin Abrahams | 7/10 | 6017 days | 49% |
| Barbara & Sven | 10/10 | 6017 days | 53% |
| Judith | 8/10 | 6021 days | 52% |
| Henrik Hougs | 8/10 | 6023 days | 52% |
| Chris Glasg | 9/10 | 6023 days | 52% |
| Michael | 10/10 | 6025 days | 53% |
| Gary Ebrig | 10/10 | 6028 days | 53% |
| Mathias | 9/10 | 6030 days | 52% |
| Jamie | 9/10 | 6035 days | 52% |
| David Hobson | 8/10 | 6035 days | 52% |
| Christian | 10/10 | 6035 days | 53% |
| vanijzendoor | 8/10 | 6038 days | 52% |
| Dick Rosman | 8/10 | 6039 days | 52% |
| Frances Hay | 8/10 | 6042 days | 52% |
| Chance McGuire | 10/10 | 6043 days | 53% |
| Kevin and Teresa | 8/10 | 6043 days | 52% |
| Ben Miklozek | 9/10 | 6043 days | 52% |
| Marianne Lovdal | 9/10 | 6043 days | 52% |
| Jessica | 5/10 | 6048 days | 38% |
| S Luis Van Oler | 6/10 | 6048 days | 44% |
| sophiep | 8/10 | 6089 days | 52% |
| katharinatum | 9/10 | 6089 days | 52% |
| koellner | 6/10 | 6103 days | 44% |
| chrish1 | 9/10 | 6105 days | 52% |
| Fred Findlay | 7/10 | 6117 days | 49% |
| maleta | 9/10 | 6126 days | 52% |
| Gemma Morris | 10/10 | 6128 days | 53% |
| TomL | 10/10 | 6135 days | 53% |
| Pauline Wan | 7/10 | 6135 days | 49% |
| eowyn2k | 7/10 | 6135 days | 49% |
| Suzanne | 9/10 | 6166 days | 52% |
| terryd | 9/10 | 6227 days | 52% |
| kindel | 6/10 | 6231 days | 44% |
| Emear Donnelly | 10/10 | 6270 days | 53% |
| zoed | 7/10 | 6304 days | 49% |
| steph_m | 9/10 | 6319 days | 52% |
| Charles Lyne | 10/10 | 6319 days | 53% |
| BenM1 | 7/10 | 6328 days | 49% |
| KimC | 8/10 | 6337 days | 52% |
| JonK | 8/10 | 6337 days | 52% |
| TschaneK | 10/10 | 6339 days | 53% |
| RogerW | 10/10 | 6341 days | 53% |
| NicolaW | 10/10 | 6341 days | 53% |
| Lisa Duin | 8/10 | 6347 days | 52% |
| Joanna Harrnon | 9/10 | 6348 days | 52% |
| David | 8/10 | 6349 days | 52% |
| johnst | 10/10 | 6349 days | 53% |
| Adi | 10/10 | 6349 days | 53% |
| Sally477 | 9/10 | 6350 days | 52% |
| Becca1 | 9/10 | 6351 days | 52% |
| Jelle | 8/10 | 6352 days | 52% |
| Denys | 8/10 | 6353 days | 52% |
| Ronny | 9/10 | 6353 days | 52% |
| Viktoria Stoffel | 10/10 | 6356 days | 53% |
| Jon Li | 9/10 | 6361 days | 52% |
| Han Disveld | 9/10 | 6361 days | 52% |
| BevanLisa | 10/10 | 6366 days | 53% |
| SabineGermany | 10/10 | 6367 days | 53% |
| StefanGermany1 | 9/10 | 6367 days | 52% |
| AnjaC | 7/10 | 6367 days | 49% |
| AnjaChrist | 7/10 | 6367 days | 49% |
| Torsten | 9/10 | 6368 days | 52% |
| MarcoJ | 8/10 | 6369 days | 52% |
| James O'Neil | 10/10 | 6369 days | 53% |
| Barry Smith | 10/10 | 6369 days | 53% |
| Siemens | 8/10 | 6369 days | 52% |
| AlexH | 10/10 | 6370 days | 53% |
| AnnickH | 6/10 | 6371 days | 44% |
| Rene | 8/10 | 6372 days | 52% |
| Dorothee | 8/10 | 6372 days | 52% |
| Rob | 7/10 | 6372 days | 49% |
| Mike | 6/10 | 6373 days | 44% |
| TammyH | 9/10 | 6375 days | 52% |
| Lynn White | 7/10 | 6375 days | 49% |
| Mette | 8/10 | 6379 days | 52% |
| Axel | 5/10 | 6379 days | 38% |
| amyd | 8/10 | 6380 days | 52% |
| Susan | 9/10 | 6381 days | 52% |
| lannie | 5/10 | 6382 days | 38% |
| XaviG | 9/10 | 6383 days | 52% |
| ChenM | 8/10 | 6383 days | 52% |
| Steven | 9/10 | 6383 days | 52% |
| CarleyJ | 8/10 | 6383 days | 52% |
| JesusB | 7/10 | 6383 days | 49% |
| GingerPrince | 9/10 | 6383 days | 52% |
| Steve | 10/10 | 6383 days | 53% |
| Claudia | 9/10 | 6385 days | 52% |
| Pascal | 8/10 | 6385 days | 52% |
| Karen | 9/10 | 6388 days | 52% |
| RandiL | 7/10 | 6391 days | 49% |
| IreneF | 9/10 | 6392 days | 52% |
| Rachel | 8/10 | 6398 days | 52% |
| Adi | 10/10 | 6398 days | 53% |
| Claire | 8/10 | 6398 days | 52% |
| Philippa | 9/10 | 6399 days | 52% |
| Conway | 9/10 | 6399 days | 52% |
| orianne | 10/10 | 6406 days | 53% |
| Caroline | 7/10 | 6406 days | 49% |
| Eike | 9/10 | 6413 days | 52% |
| Benni | 7/10 | 6415 days | 49% |
| John | 6/10 | 6418 days | 44% |
| Dan | 9/10 | 6422 days | 52% |
| Sally | 9/10 | 6422 days | 52% |
| Rosa | 4/10 | 6422 days | 32% |
| Sascha | 7/10 | 6423 days | 49% |
| Dassel | 8/10 | 6423 days | 52% |
| Eric | 3/10 | 6424 days | 25% |
| Charlie | 9/10 | 6429 days | 52% |
| tommfuller | 7/10 | 6433 days | 49% |
| Anouk | 9/10 | 6461 days | 52% |
| MissTraveller2009 | 10/10 | 6470 days | 53% |
| David | 9/10 | 6474 days | 52% |
| Laura | 9/10 | 6474 days | 52% |
| Adam | 8/10 | 6479 days | 52% |
| mike brett | 7/10 | 6483 days | 49% |
| georgepearse | 9/10 | 6520 days | 52% |
| Aoife | 8/10 | 6523 days | 52% |
| Davina | 8/10 | 6524 days | 52% |
| Kath | 10/10 | 6526 days | 53% |
| Kate | 8/10 | 6535 days | 52% |
| Brenda | 8/10 | 6535 days | 52% |
| Amy | 8/10 | 6544 days | 52% |
| Katie | 10/10 | 6544 days | 53% |
| Christoffer | 10/10 | 6546 days | 53% |
| Rebecca | 9/10 | 6546 days | 52% |
| Suyin | 10/10 | 6547 days | 53% |
| Sarah | 6/10 | 6555 days | 44% |
| Michaela | 9/10 | 6559 days | 52% |
| Christopher | 6/10 | 6559 days | 44% |
| James | 8/10 | 6559 days | 52% |
| Sam Prior | 8/10 | 6564 days | 52% |
| jillian | 8/10 | 6568 days | 52% |
| George Burgas | 9/10 | 6573 days | 52% |
| stain weedman | 6/10 | 6579 days | 44% |
| Sharon Curly | 9/10 | 6581 days | 52% |
| Peddy | 7/10 | 6585 days | 49% |
| Tim | 5/10 | 6601 days | 38% |
| Thomas Fillary | 9/10 | 6617 days | 52% |
| Sjoerd | 8/10 | 6623 days | 52% |
| Gemma Harling | 9/10 | 6623 days | 52% |
| Charlie Bond | 9/10 | 6630 days | 52% |
| Florencia Cortese | 10/10 | 6691 days | 53% |
| Meike Biel | 7/10 | 6699 days | 49% |
| Helen | 9/10 | 6699 days | 52% |
| Ellie | 9/10 | 6711 days | 52% |
| Daniel | 7/10 | 6729 days | 49% |
| Omer Harron | 9/10 | 6729 days | 52% |
| Yayami Kimura | 10/10 | 6732 days | 53% |
| Kieran Concarr | 9/10 | 6732 days | 52% |
| Christian | 8/10 | 6736 days | 52% |
| Kathrin | 9/10 | 6740 days | 52% |
| Andreas Brett | 8/10 | 6742 days | 52% |
| Kristine Clemmensen Rotne | 7/10 | 6742 days | 49% |
| helga | 6/10 | 6742 days | 44% |
| Emily Houston | 10/10 | 6746 days | 53% |
| Hannah Holmes | 8/10 | 6749 days | 52% |
| Lisa Tame | 9/10 | 6750 days | 52% |
| Kelly | 9/10 | 6753 days | 52% |
| Stephanie | 10/10 | 6761 days | 53% |
| Sayaka | 7/10 | 6761 days | 49% |
| Marc Hertogs | 8/10 | 6765 days | 52% |
| Tanya Berthoud | 9/10 | 6767 days | 52% |
| Van Hoof | 8/10 | 6789 days | 52% |
| Berger | 8/10 | 6796 days | 52% |
| Travis Brennan | 9/10 | 6809 days | 52% |
| Alexis | 10/10 | 6823 days | 53% |
| Martine Arsac | 5/10 | 6831 days | 38% |
| Frida | 8/10 | 6833 days | 52% |
| Ben | 10/10 | 6834 days | 53% |
| Wendy Williams | 8/10 | 6841 days | 52% |
| Charlie Wilson | 10/10 | 6916 days | 53% |
| Ian Coldrake | 8/10 | 6916 days | 52% |
| Jill Bourke | 10/10 | 6921 days | 53% |
| Andy Chapman | 8/10 | 6951 days | 52% |
| Shelley | 10/10 | 7056 days | 53% |
| Will | 9/10 | 7065 days | 52% |
| Michael | 9/10 | 7067 days | 52% |
| Sue | 8/10 | 7067 days | 52% |
| Stefan | 8/10 | 7070 days | 52% |
| Jenny | 8/10 | 7073 days | 52% |
| Kate | 8/10 | 7075 days | 52% |
| Paul Yacoumis | 7/10 | 7077 days | 49% |
| Kathryn | 9/10 | 7082 days | 52% |
| Celia | 9/10 | 7084 days | 52% |
| Annelte | 4/10 | 7085 days | 32% |
| IdanNakash | 8/10 | 7085 days | 52% |
| Martin Christina | 9/10 | 7085 days | 52% |
| Chris | 8/10 | 7086 days | 52% |
| Janneke | 8/10 | 7086 days | 52% |
| Sue Robertson | 10/10 | 7088 days | 53% |
| Fenke | 7/10 | 7091 days | 49% |
| Bas | 7/10 | 7091 days | 49% |
| Daniel | 9/10 | 7093 days | 52% |
| Susan | 6/10 | 7099 days | 44% |
| ErikVanDam | 9/10 | 7105 days | 52% |
| MariaNorman | 9/10 | 7105 days | 52% |
| MarcHarris | 8/10 | 7105 days | 52% |
| Helena | 10/10 | 7105 days | 53% |
| Sarah | 10/10 | 7114 days | 53% |
| beesom | 8/10 | 7115 days | 52% |
| Peter | 5/10 | 7119 days | 38% |
| Sonja | 7/10 | 7126 days | 49% |
| Leah | 8/10 | 7127 days | 52% |
| Sarah | 10/10 | 7147 days | 53% |
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
-2.36% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 110 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 | -2.33% |
| 198 | -2.34% |
| 199 | -2.35% |
| 200 | -2.36% |
| 201 | -2.37% |
| 202 | -2.39% |
| 203 | -2.40% |
| … | … |
Balancing Adjustment
2.29% 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.