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
85.18%
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 | 3494 days | 100% |
| Jessica Freeland | 10/10 | 3555 days | 93% |
| Nanna Overbeck | 10/10 | 3567 days | 91% |
| Joe Rogers | 9/10 | 3848 days | 57% |
| Nicola Wiggan | 9/10 | 3917 days | 48% |
| Ben McDougal | 10/10 | 3939 days | 46% |
| Maria Schober | 5/10 | 4226 days | 7% |
| Helen Parsons | 1/10 | 4234 days | 0% |
| Elisa Felising | 7/10 | 4234 days | 9% |
| Claudia de Winter | 9/10 | 4546 days | 54% |
| Penny Lee | 9/10 | 4548 days | 54% |
| Jeroen Suijlang | 8/10 | 4548 days | 53% |
| Ludvig Fagerstrom | 8/10 | 4622 days | 53% |
| Marco Schmidt | 10/10 | 4919 days | 55% |
| Christian Schumacher | 10/10 | 4919 days | 55% |
| Jennifer Bramstad | 8/10 | 4939 days | 53% |
| Evelina Johansson | 8/10 | 4939 days | 53% |
| Sofia Anderson | 10/10 | 4939 days | 55% |
| Steve | 5/10 | 4940 days | 40% |
| Janine Kohlgrueler | 9/10 | 4947 days | 54% |
| Fraser Goldsmith | 9/10 | 4964 days | 54% |
| Nigel Leighton | 10/10 | 5018 days | 55% |
| Jonathan Vondette | 7/10 | 5021 days | 50% |
| Andreas and Christine and Nora Busch | 10/10 | 5029 days | 55% |
| lavonc | 3/10 | 5060 days | 26% |
| peterpiper | 10/10 | 5244 days | 55% |
| sandytemp22 | 10/10 | 5274 days | 55% |
| Laura vanGool | 10/10 | 5290 days | 55% |
| Barbara Berkhout | 7/10 | 5290 days | 50% |
| Jurgen Joyce | 8/10 | 5297 days | 53% |
| Carole Carter | 9/10 | 5297 days | 54% |
| Sabrina Germany | 9/10 | 5300 days | 54% |
| J Jmal | 10/10 | 5301 days | 55% |
| Malena | 10/10 | 5305 days | 55% |
| Erik | 10/10 | 5307 days | 55% |
| Marion Hassink | 8/10 | 5311 days | 53% |
| Baas | 8/10 | 5314 days | 53% |
| Barbara | 10/10 | 5315 days | 55% |
| Rebecca Richardson | 8/10 | 5316 days | 53% |
| Andrew Powell | 7/10 | 5316 days | 50% |
| Andy Bridgman | 8/10 | 5319 days | 53% |
| Aoife Lillis | 7/10 | 5322 days | 50% |
| Rainer Schnell | 8/10 | 5326 days | 53% |
| Filsack | 8/10 | 5326 days | 53% |
| Hazel | 10/10 | 5327 days | 55% |
| Frank Waskikowski | 9/10 | 5328 days | 54% |
| Andreas Kristiansen | 9/10 | 5328 days | 54% |
| Robert MacLeod-Smith | 8/10 | 5330 days | 53% |
| Chris Marsh | 6/10 | 5331 days | 46% |
| Jessica Lane | 7/10 | 5331 days | 50% |
| Francis Corrigan | 7/10 | 5335 days | 50% |
| Laura Smith | 9/10 | 5347 days | 54% |
| Dean | 8/10 | 5380 days | 53% |
| Berry | 10/10 | 5407 days | 55% |
| Steve | 9/10 | 5410 days | 54% |
| MaggieYChaChi | 9/10 | 5487 days | 54% |
| GenH | 9/10 | 5610 days | 54% |
| Allison Meyoz | 9/10 | 5616 days | 54% |
| G Tulloch | 9/10 | 5634 days | 54% |
| Stephen Hunt | 9/10 | 5636 days | 54% |
| Thomas Klebensberger | 10/10 | 5636 days | 55% |
| Therea | 10/10 | 5639 days | 55% |
| Sean Brownell | 7/10 | 5640 days | 50% |
| Laura Thrower | 10/10 | 5645 days | 55% |
| David Taylor | 9/10 | 5645 days | 54% |
| Stefan Schmitz | 8/10 | 5653 days | 53% |
| Marii Joekalda | 8/10 | 5654 days | 53% |
| Frank & Ruth | 6/10 | 5655 days | 46% |
| Nathalie | 10/10 | 5655 days | 55% |
| Jo Meekley | 7/10 | 5655 days | 50% |
| Margit and Corein Groenevelt | 8/10 | 5657 days | 53% |
| Judith | 9/10 | 5657 days | 54% |
| Ven | 8/10 | 5657 days | 53% |
| Florian | 8/10 | 5661 days | 53% |
| Helen | 9/10 | 5661 days | 54% |
| Juliane Kleiu | 10/10 | 5661 days | 55% |
| Paula Dove | 10/10 | 5661 days | 55% |
| Erin | 8/10 | 5662 days | 53% |
| Walter Buschta | 8/10 | 5662 days | 53% |
| Wouter Moui | 6/10 | 5663 days | 46% |
| K Dahmer | 8/10 | 5664 days | 53% |
| Jonathan Cree | 9/10 | 5664 days | 54% |
| Laura Leigh | 10/10 | 5664 days | 55% |
| Ann-Kathrin Auditor | 10/10 | 5665 days | 55% |
| Katherine Forward | 8/10 | 5665 days | 53% |
| Chris Ashton | 10/10 | 5665 days | 55% |
| Jerry & Floon | 7/10 | 5669 days | 50% |
| Hadar Zevulun | 9/10 | 5670 days | 54% |
| Grumbach | 9/10 | 5674 days | 54% |
| Caroline Sheridan | 9/10 | 5675 days | 54% |
| Chris Darlington | 10/10 | 5679 days | 55% |
| Cheryl | 10/10 | 5689 days | 55% |
| Mark Aarts | 9/10 | 5690 days | 54% |
| Samuel Prechel | 8/10 | 5691 days | 53% |
| Dave and Lin Mungham | 10/10 | 5692 days | 55% |
| Gordon Daniels | 8/10 | 5694 days | 53% |
| Dr Dorthe Bossow | 3/10 | 5695 days | 26% |
| Helen Gilbertson | 8/10 | 5698 days | 53% |
| Doris Neuber | 9/10 | 5698 days | 54% |
| Ashleigh Buckley | 8/10 | 5699 days | 53% |
| PerspirationJournal | 10/10 | 5791 days | 55% |
| alku83 | 10/10 | 5791 days | 55% |
| Mary Van | 8/10 | 5852 days | 53% |
| chloe1111 | 10/10 | 5975 days | 55% |
| jenniferuk | 9/10 | 5975 days | 54% |
| Peter and Hilda | 10/10 | 6005 days | 55% |
| Einar | 9/10 | 6024 days | 54% |
| Inbar Yizhar Barnea | 8/10 | 6024 days | 53% |
| Tanya | 9/10 | 6029 days | 54% |
| Jana Steve | 10/10 | 6030 days | 55% |
| Yasmin Abrahams | 7/10 | 6038 days | 50% |
| Barbara & Sven | 10/10 | 6038 days | 55% |
| Judith | 8/10 | 6042 days | 53% |
| Henrik Hougs | 8/10 | 6044 days | 53% |
| Chris Glasg | 9/10 | 6044 days | 54% |
| Michael | 10/10 | 6046 days | 55% |
| Gary Ebrig | 10/10 | 6049 days | 55% |
| Mathias | 9/10 | 6051 days | 54% |
| Jamie | 9/10 | 6056 days | 54% |
| David Hobson | 8/10 | 6056 days | 53% |
| Christian | 10/10 | 6056 days | 55% |
| vanijzendoor | 8/10 | 6059 days | 53% |
| Dick Rosman | 8/10 | 6060 days | 53% |
| Frances Hay | 8/10 | 6063 days | 53% |
| Chance McGuire | 10/10 | 6064 days | 55% |
| Kevin and Teresa | 8/10 | 6064 days | 53% |
| Ben Miklozek | 9/10 | 6064 days | 54% |
| Marianne Lovdal | 9/10 | 6064 days | 54% |
| Jessica | 5/10 | 6069 days | 40% |
| S Luis Van Oler | 6/10 | 6069 days | 46% |
| sophiep | 8/10 | 6110 days | 53% |
| katharinatum | 9/10 | 6110 days | 54% |
| koellner | 6/10 | 6124 days | 46% |
| chrish1 | 9/10 | 6126 days | 54% |
| Fred Findlay | 7/10 | 6138 days | 50% |
| maleta | 9/10 | 6147 days | 54% |
| Gemma Morris | 10/10 | 6149 days | 55% |
| TomL | 10/10 | 6156 days | 55% |
| Pauline Wan | 7/10 | 6156 days | 50% |
| eowyn2k | 7/10 | 6156 days | 50% |
| Suzanne | 9/10 | 6187 days | 54% |
| terryd | 9/10 | 6248 days | 54% |
| kindel | 6/10 | 6252 days | 46% |
| Emear Donnelly | 10/10 | 6291 days | 55% |
| zoed | 7/10 | 6325 days | 50% |
| steph_m | 9/10 | 6340 days | 54% |
| Charles Lyne | 10/10 | 6340 days | 55% |
| BenM1 | 7/10 | 6349 days | 50% |
| KimC | 8/10 | 6358 days | 53% |
| JonK | 8/10 | 6358 days | 53% |
| TschaneK | 10/10 | 6360 days | 55% |
| RogerW | 10/10 | 6362 days | 55% |
| NicolaW | 10/10 | 6362 days | 55% |
| Lisa Duin | 8/10 | 6368 days | 53% |
| Joanna Harrnon | 9/10 | 6369 days | 54% |
| David | 8/10 | 6370 days | 53% |
| johnst | 10/10 | 6370 days | 55% |
| Adi | 10/10 | 6370 days | 55% |
| Sally477 | 9/10 | 6371 days | 54% |
| Becca1 | 9/10 | 6372 days | 54% |
| Jelle | 8/10 | 6373 days | 53% |
| Denys | 8/10 | 6374 days | 53% |
| Ronny | 9/10 | 6374 days | 54% |
| Viktoria Stoffel | 10/10 | 6377 days | 55% |
| Jon Li | 9/10 | 6382 days | 54% |
| Han Disveld | 9/10 | 6382 days | 54% |
| BevanLisa | 10/10 | 6387 days | 55% |
| SabineGermany | 10/10 | 6388 days | 55% |
| StefanGermany1 | 9/10 | 6388 days | 54% |
| AnjaC | 7/10 | 6388 days | 50% |
| AnjaChrist | 7/10 | 6388 days | 50% |
| Torsten | 9/10 | 6389 days | 54% |
| MarcoJ | 8/10 | 6390 days | 53% |
| James O'Neil | 10/10 | 6390 days | 55% |
| Barry Smith | 10/10 | 6390 days | 55% |
| Siemens | 8/10 | 6390 days | 53% |
| AlexH | 10/10 | 6391 days | 55% |
| AnnickH | 6/10 | 6392 days | 46% |
| Rene | 8/10 | 6393 days | 53% |
| Dorothee | 8/10 | 6393 days | 53% |
| Rob | 7/10 | 6393 days | 50% |
| Mike | 6/10 | 6394 days | 46% |
| TammyH | 9/10 | 6396 days | 54% |
| Lynn White | 7/10 | 6396 days | 50% |
| Mette | 8/10 | 6400 days | 53% |
| Axel | 5/10 | 6400 days | 40% |
| amyd | 8/10 | 6401 days | 53% |
| Susan | 9/10 | 6402 days | 54% |
| lannie | 5/10 | 6403 days | 40% |
| XaviG | 9/10 | 6404 days | 54% |
| ChenM | 8/10 | 6404 days | 53% |
| Steven | 9/10 | 6404 days | 54% |
| CarleyJ | 8/10 | 6404 days | 53% |
| JesusB | 7/10 | 6404 days | 50% |
| GingerPrince | 9/10 | 6404 days | 54% |
| Steve | 10/10 | 6404 days | 55% |
| Claudia | 9/10 | 6406 days | 54% |
| Pascal | 8/10 | 6406 days | 53% |
| Karen | 9/10 | 6409 days | 54% |
| RandiL | 7/10 | 6412 days | 50% |
| IreneF | 9/10 | 6413 days | 54% |
| Rachel | 8/10 | 6419 days | 53% |
| Adi | 10/10 | 6419 days | 55% |
| Claire | 8/10 | 6419 days | 53% |
| Philippa | 9/10 | 6420 days | 54% |
| Conway | 9/10 | 6420 days | 54% |
| orianne | 10/10 | 6427 days | 55% |
| Caroline | 7/10 | 6427 days | 50% |
| Eike | 9/10 | 6434 days | 54% |
| Benni | 7/10 | 6436 days | 50% |
| John | 6/10 | 6439 days | 46% |
| Dan | 9/10 | 6443 days | 54% |
| Sally | 9/10 | 6443 days | 54% |
| Rosa | 4/10 | 6443 days | 33% |
| Sascha | 7/10 | 6444 days | 50% |
| Dassel | 8/10 | 6444 days | 53% |
| Eric | 3/10 | 6445 days | 26% |
| Charlie | 9/10 | 6450 days | 54% |
| tommfuller | 7/10 | 6454 days | 50% |
| Anouk | 9/10 | 6482 days | 54% |
| MissTraveller2009 | 10/10 | 6491 days | 55% |
| David | 9/10 | 6495 days | 54% |
| Laura | 9/10 | 6495 days | 54% |
| Adam | 8/10 | 6500 days | 53% |
| mike brett | 7/10 | 6504 days | 50% |
| georgepearse | 9/10 | 6541 days | 54% |
| Aoife | 8/10 | 6544 days | 53% |
| Davina | 8/10 | 6545 days | 53% |
| Kath | 10/10 | 6547 days | 55% |
| Kate | 8/10 | 6556 days | 53% |
| Brenda | 8/10 | 6556 days | 53% |
| Amy | 8/10 | 6565 days | 53% |
| Katie | 10/10 | 6565 days | 55% |
| Christoffer | 10/10 | 6567 days | 55% |
| Rebecca | 9/10 | 6567 days | 54% |
| Suyin | 10/10 | 6568 days | 55% |
| Sarah | 6/10 | 6576 days | 46% |
| Michaela | 9/10 | 6580 days | 54% |
| Christopher | 6/10 | 6580 days | 46% |
| James | 8/10 | 6580 days | 53% |
| Sam Prior | 8/10 | 6585 days | 53% |
| jillian | 8/10 | 6589 days | 53% |
| George Burgas | 9/10 | 6594 days | 54% |
| stain weedman | 6/10 | 6600 days | 46% |
| Sharon Curly | 9/10 | 6602 days | 54% |
| Peddy | 7/10 | 6606 days | 50% |
| Tim | 5/10 | 6622 days | 40% |
| Thomas Fillary | 9/10 | 6638 days | 54% |
| Sjoerd | 8/10 | 6644 days | 53% |
| Gemma Harling | 9/10 | 6644 days | 54% |
| Charlie Bond | 9/10 | 6651 days | 54% |
| Florencia Cortese | 10/10 | 6712 days | 55% |
| Meike Biel | 7/10 | 6720 days | 50% |
| Helen | 9/10 | 6720 days | 54% |
| Ellie | 9/10 | 6732 days | 54% |
| Daniel | 7/10 | 6750 days | 50% |
| Omer Harron | 9/10 | 6750 days | 54% |
| Yayami Kimura | 10/10 | 6753 days | 55% |
| Kieran Concarr | 9/10 | 6753 days | 54% |
| Christian | 8/10 | 6757 days | 53% |
| Kathrin | 9/10 | 6761 days | 54% |
| Andreas Brett | 8/10 | 6763 days | 53% |
| Kristine Clemmensen Rotne | 7/10 | 6763 days | 50% |
| helga | 6/10 | 6763 days | 46% |
| Emily Houston | 10/10 | 6767 days | 55% |
| Hannah Holmes | 8/10 | 6770 days | 53% |
| Lisa Tame | 9/10 | 6771 days | 54% |
| Kelly | 9/10 | 6774 days | 54% |
| Stephanie | 10/10 | 6782 days | 55% |
| Sayaka | 7/10 | 6782 days | 50% |
| Marc Hertogs | 8/10 | 6786 days | 53% |
| Tanya Berthoud | 9/10 | 6788 days | 54% |
| Van Hoof | 8/10 | 6810 days | 53% |
| Berger | 8/10 | 6817 days | 53% |
| Travis Brennan | 9/10 | 6830 days | 54% |
| Alexis | 10/10 | 6844 days | 55% |
| Martine Arsac | 5/10 | 6852 days | 40% |
| Frida | 8/10 | 6854 days | 53% |
| Ben | 10/10 | 6855 days | 55% |
| Wendy Williams | 8/10 | 6862 days | 53% |
| Charlie Wilson | 10/10 | 6937 days | 55% |
| Ian Coldrake | 8/10 | 6937 days | 53% |
| Jill Bourke | 10/10 | 6942 days | 55% |
| Andy Chapman | 8/10 | 6972 days | 53% |
| Shelley | 10/10 | 7077 days | 55% |
| Will | 9/10 | 7086 days | 54% |
| Michael | 9/10 | 7088 days | 54% |
| Sue | 8/10 | 7088 days | 53% |
| Stefan | 8/10 | 7091 days | 53% |
| Jenny | 8/10 | 7094 days | 53% |
| Kate | 8/10 | 7096 days | 53% |
| Paul Yacoumis | 7/10 | 7098 days | 50% |
| Kathryn | 9/10 | 7103 days | 54% |
| Celia | 9/10 | 7105 days | 54% |
| Annelte | 4/10 | 7106 days | 33% |
| IdanNakash | 8/10 | 7106 days | 53% |
| Martin Christina | 9/10 | 7106 days | 54% |
| Chris | 8/10 | 7107 days | 53% |
| Janneke | 8/10 | 7107 days | 53% |
| Sue Robertson | 10/10 | 7109 days | 55% |
| Fenke | 7/10 | 7112 days | 50% |
| Bas | 7/10 | 7112 days | 50% |
| Daniel | 9/10 | 7114 days | 54% |
| Susan | 6/10 | 7120 days | 46% |
| ErikVanDam | 9/10 | 7126 days | 54% |
| MariaNorman | 9/10 | 7126 days | 54% |
| MarcHarris | 8/10 | 7126 days | 53% |
| Helena | 10/10 | 7126 days | 55% |
| Sarah | 10/10 | 7135 days | 55% |
| beesom | 8/10 | 7136 days | 53% |
| Peter | 5/10 | 7140 days | 40% |
| Sonja | 7/10 | 7147 days | 50% |
| Leah | 8/10 | 7148 days | 53% |
| Sarah | 10/10 | 7168 days | 55% |
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
-2.78% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 85 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 | -2.74% |
| 198 | -2.76% |
| 199 | -2.77% |
| 200 | -2.78% |
| 201 | -2.80% |
| 202 | -2.81% |
| 203 | -2.83% |
| … | … |
Balancing Adjustment
2.39% 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.