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
85.16%
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 | 3292 days | 100% |
| Jessica Freeland | 10/10 | 3353 days | 94% |
| Nanna Overbeck | 10/10 | 3365 days | 93% |
| Joe Rogers | 9/10 | 3646 days | 66% |
| Nicola Wiggan | 9/10 | 3715 days | 59% |
| Ben McDougal | 10/10 | 3737 days | 58% |
| Maria Schober | 5/10 | 4024 days | 23% |
| Helen Parsons | 1/10 | 4032 days | 10% |
| Elisa Felising | 7/10 | 4032 days | 28% |
| Claudia de Winter | 9/10 | 4344 days | 0% |
| Penny Lee | 9/10 | 4346 days | 0% |
| Jeroen Suijlang | 8/10 | 4346 days | 0% |
| Ludvig Fagerstrom | 8/10 | 4420 days | 44% |
| Marco Schmidt | 10/10 | 4717 days | 45% |
| Christian Schumacher | 10/10 | 4717 days | 45% |
| Jennifer Bramstad | 8/10 | 4737 days | 44% |
| Evelina Johansson | 8/10 | 4737 days | 44% |
| Sofia Anderson | 10/10 | 4737 days | 45% |
| Steve | 5/10 | 4738 days | 34% |
| Janine Kohlgrueler | 9/10 | 4745 days | 45% |
| Fraser Goldsmith | 9/10 | 4762 days | 45% |
| Nigel Leighton | 10/10 | 4816 days | 45% |
| Jonathan Vondette | 7/10 | 4819 days | 42% |
| Andreas and Christine and Nora Busch | 10/10 | 4827 days | 45% |
| lavonc | 3/10 | 4858 days | 23% |
| peterpiper | 10/10 | 5042 days | 45% |
| sandytemp22 | 10/10 | 5072 days | 45% |
| Laura vanGool | 10/10 | 5088 days | 45% |
| Barbara Berkhout | 7/10 | 5088 days | 42% |
| Jurgen Joyce | 8/10 | 5095 days | 44% |
| Carole Carter | 9/10 | 5095 days | 45% |
| Sabrina Germany | 9/10 | 5098 days | 45% |
| J Jmal | 10/10 | 5099 days | 45% |
| Malena | 10/10 | 5103 days | 45% |
| Erik | 10/10 | 5105 days | 45% |
| Marion Hassink | 8/10 | 5109 days | 44% |
| Baas | 8/10 | 5112 days | 44% |
| Barbara | 10/10 | 5113 days | 45% |
| Rebecca Richardson | 8/10 | 5114 days | 44% |
| Andrew Powell | 7/10 | 5114 days | 42% |
| Andy Bridgman | 8/10 | 5117 days | 44% |
| Aoife Lillis | 7/10 | 5120 days | 42% |
| Rainer Schnell | 8/10 | 5124 days | 44% |
| Filsack | 8/10 | 5124 days | 44% |
| Hazel | 10/10 | 5125 days | 45% |
| Frank Waskikowski | 9/10 | 5126 days | 45% |
| Andreas Kristiansen | 9/10 | 5126 days | 45% |
| Robert MacLeod-Smith | 8/10 | 5128 days | 44% |
| Chris Marsh | 6/10 | 5129 days | 39% |
| Jessica Lane | 7/10 | 5129 days | 42% |
| Francis Corrigan | 7/10 | 5133 days | 42% |
| Laura Smith | 9/10 | 5145 days | 45% |
| Dean | 8/10 | 5178 days | 44% |
| Berry | 10/10 | 5205 days | 45% |
| Steve | 9/10 | 5208 days | 45% |
| MaggieYChaChi | 9/10 | 5285 days | 45% |
| GenH | 9/10 | 5408 days | 45% |
| Allison Meyoz | 9/10 | 5414 days | 45% |
| G Tulloch | 9/10 | 5432 days | 45% |
| Stephen Hunt | 9/10 | 5434 days | 45% |
| Thomas Klebensberger | 10/10 | 5434 days | 45% |
| Therea | 10/10 | 5437 days | 45% |
| Sean Brownell | 7/10 | 5438 days | 42% |
| Laura Thrower | 10/10 | 5443 days | 45% |
| David Taylor | 9/10 | 5443 days | 45% |
| Stefan Schmitz | 8/10 | 5451 days | 44% |
| Marii Joekalda | 8/10 | 5452 days | 44% |
| Frank & Ruth | 6/10 | 5453 days | 39% |
| Nathalie | 10/10 | 5453 days | 45% |
| Jo Meekley | 7/10 | 5453 days | 42% |
| Margit and Corein Groenevelt | 8/10 | 5455 days | 44% |
| Judith | 9/10 | 5455 days | 45% |
| Ven | 8/10 | 5455 days | 44% |
| Florian | 8/10 | 5459 days | 44% |
| Helen | 9/10 | 5459 days | 45% |
| Juliane Kleiu | 10/10 | 5459 days | 45% |
| Paula Dove | 10/10 | 5459 days | 45% |
| Erin | 8/10 | 5460 days | 44% |
| Walter Buschta | 8/10 | 5460 days | 44% |
| Wouter Moui | 6/10 | 5461 days | 39% |
| K Dahmer | 8/10 | 5462 days | 44% |
| Jonathan Cree | 9/10 | 5462 days | 45% |
| Laura Leigh | 10/10 | 5462 days | 45% |
| Ann-Kathrin Auditor | 10/10 | 5463 days | 45% |
| Katherine Forward | 8/10 | 5463 days | 44% |
| Chris Ashton | 10/10 | 5463 days | 45% |
| Jerry & Floon | 7/10 | 5467 days | 42% |
| Hadar Zevulun | 9/10 | 5468 days | 45% |
| Grumbach | 9/10 | 5472 days | 45% |
| Caroline Sheridan | 9/10 | 5473 days | 45% |
| Chris Darlington | 10/10 | 5477 days | 45% |
| Cheryl | 10/10 | 5487 days | 45% |
| Mark Aarts | 9/10 | 5488 days | 45% |
| Samuel Prechel | 8/10 | 5489 days | 44% |
| Dave and Lin Mungham | 10/10 | 5490 days | 45% |
| Gordon Daniels | 8/10 | 5492 days | 44% |
| Dr Dorthe Bossow | 3/10 | 5493 days | 23% |
| Helen Gilbertson | 8/10 | 5496 days | 44% |
| Doris Neuber | 9/10 | 5496 days | 45% |
| Ashleigh Buckley | 8/10 | 5497 days | 44% |
| PerspirationJournal | 10/10 | 5589 days | 45% |
| alku83 | 10/10 | 5589 days | 45% |
| Mary Van | 8/10 | 5650 days | 44% |
| chloe1111 | 10/10 | 5773 days | 45% |
| jenniferuk | 9/10 | 5773 days | 45% |
| Peter and Hilda | 10/10 | 5803 days | 45% |
| Einar | 9/10 | 5822 days | 45% |
| Inbar Yizhar Barnea | 8/10 | 5822 days | 44% |
| Tanya | 9/10 | 5827 days | 45% |
| Jana Steve | 10/10 | 5828 days | 45% |
| Yasmin Abrahams | 7/10 | 5836 days | 42% |
| Barbara & Sven | 10/10 | 5836 days | 45% |
| Judith | 8/10 | 5840 days | 44% |
| Henrik Hougs | 8/10 | 5842 days | 44% |
| Chris Glasg | 9/10 | 5842 days | 45% |
| Michael | 10/10 | 5844 days | 45% |
| Gary Ebrig | 10/10 | 5847 days | 45% |
| Mathias | 9/10 | 5849 days | 45% |
| Jamie | 9/10 | 5854 days | 45% |
| David Hobson | 8/10 | 5854 days | 44% |
| Christian | 10/10 | 5854 days | 45% |
| vanijzendoor | 8/10 | 5857 days | 44% |
| Dick Rosman | 8/10 | 5858 days | 44% |
| Frances Hay | 8/10 | 5861 days | 44% |
| Chance McGuire | 10/10 | 5862 days | 45% |
| Kevin and Teresa | 8/10 | 5862 days | 44% |
| Ben Miklozek | 9/10 | 5862 days | 45% |
| Marianne Lovdal | 9/10 | 5862 days | 45% |
| Jessica | 5/10 | 5867 days | 34% |
| S Luis Van Oler | 6/10 | 5867 days | 39% |
| sophiep | 8/10 | 5908 days | 44% |
| katharinatum | 9/10 | 5908 days | 45% |
| koellner | 6/10 | 5922 days | 39% |
| chrish1 | 9/10 | 5924 days | 45% |
| Fred Findlay | 7/10 | 5936 days | 42% |
| maleta | 9/10 | 5945 days | 45% |
| Gemma Morris | 10/10 | 5947 days | 45% |
| TomL | 10/10 | 5954 days | 45% |
| Pauline Wan | 7/10 | 5954 days | 42% |
| eowyn2k | 7/10 | 5954 days | 42% |
| Suzanne | 9/10 | 5985 days | 45% |
| terryd | 9/10 | 6046 days | 45% |
| kindel | 6/10 | 6050 days | 39% |
| Emear Donnelly | 10/10 | 6089 days | 45% |
| zoed | 7/10 | 6123 days | 42% |
| steph_m | 9/10 | 6138 days | 45% |
| Charles Lyne | 10/10 | 6138 days | 45% |
| BenM1 | 7/10 | 6147 days | 42% |
| KimC | 8/10 | 6156 days | 44% |
| JonK | 8/10 | 6156 days | 44% |
| TschaneK | 10/10 | 6158 days | 45% |
| RogerW | 10/10 | 6160 days | 45% |
| NicolaW | 10/10 | 6160 days | 45% |
| Lisa Duin | 8/10 | 6166 days | 44% |
| Joanna Harrnon | 9/10 | 6167 days | 45% |
| David | 8/10 | 6168 days | 44% |
| johnst | 10/10 | 6168 days | 45% |
| Adi | 10/10 | 6168 days | 45% |
| Sally477 | 9/10 | 6169 days | 45% |
| Becca1 | 9/10 | 6170 days | 45% |
| Jelle | 8/10 | 6171 days | 44% |
| Denys | 8/10 | 6172 days | 44% |
| Ronny | 9/10 | 6172 days | 45% |
| Viktoria Stoffel | 10/10 | 6175 days | 45% |
| Jon Li | 9/10 | 6180 days | 45% |
| Han Disveld | 9/10 | 6180 days | 45% |
| BevanLisa | 10/10 | 6185 days | 45% |
| SabineGermany | 10/10 | 6186 days | 45% |
| StefanGermany1 | 9/10 | 6186 days | 45% |
| AnjaC | 7/10 | 6186 days | 42% |
| AnjaChrist | 7/10 | 6186 days | 42% |
| Torsten | 9/10 | 6187 days | 45% |
| MarcoJ | 8/10 | 6188 days | 44% |
| James O'Neil | 10/10 | 6188 days | 45% |
| Barry Smith | 10/10 | 6188 days | 45% |
| Siemens | 8/10 | 6188 days | 44% |
| AlexH | 10/10 | 6189 days | 45% |
| AnnickH | 6/10 | 6190 days | 39% |
| Rene | 8/10 | 6192 days | 44% |
| Dorothee | 8/10 | 6192 days | 44% |
| Rob | 7/10 | 6192 days | 42% |
| Mike | 6/10 | 6192 days | 39% |
| TammyH | 9/10 | 6194 days | 45% |
| Lynn White | 7/10 | 6195 days | 42% |
| Mette | 8/10 | 6199 days | 44% |
| Axel | 5/10 | 6199 days | 34% |
| amyd | 8/10 | 6199 days | 44% |
| Susan | 9/10 | 6200 days | 45% |
| lannie | 5/10 | 6202 days | 34% |
| XaviG | 9/10 | 6202 days | 45% |
| ChenM | 8/10 | 6202 days | 44% |
| Steven | 9/10 | 6202 days | 45% |
| CarleyJ | 8/10 | 6202 days | 44% |
| JesusB | 7/10 | 6202 days | 42% |
| GingerPrince | 9/10 | 6202 days | 45% |
| Steve | 10/10 | 6202 days | 45% |
| Claudia | 9/10 | 6205 days | 45% |
| Pascal | 8/10 | 6205 days | 44% |
| Karen | 9/10 | 6207 days | 45% |
| RandiL | 7/10 | 6210 days | 42% |
| IreneF | 9/10 | 6211 days | 45% |
| Rachel | 8/10 | 6217 days | 44% |
| Adi | 10/10 | 6217 days | 45% |
| Claire | 8/10 | 6217 days | 44% |
| Philippa | 9/10 | 6219 days | 45% |
| Conway | 9/10 | 6219 days | 45% |
| orianne | 10/10 | 6225 days | 45% |
| Caroline | 7/10 | 6225 days | 42% |
| Eike | 9/10 | 6233 days | 45% |
| Benni | 7/10 | 6234 days | 42% |
| John | 6/10 | 6237 days | 39% |
| Dan | 9/10 | 6241 days | 45% |
| Sally | 9/10 | 6241 days | 45% |
| Rosa | 4/10 | 6241 days | 29% |
| Sascha | 7/10 | 6242 days | 42% |
| Dassel | 8/10 | 6242 days | 44% |
| Eric | 3/10 | 6244 days | 23% |
| Charlie | 9/10 | 6249 days | 45% |
| tommfuller | 7/10 | 6252 days | 42% |
| Anouk | 9/10 | 6281 days | 45% |
| MissTraveller2009 | 10/10 | 6289 days | 45% |
| David | 9/10 | 6294 days | 45% |
| Laura | 9/10 | 6294 days | 45% |
| Adam | 8/10 | 6298 days | 44% |
| mike brett | 7/10 | 6302 days | 42% |
| georgepearse | 9/10 | 6339 days | 45% |
| Aoife | 8/10 | 6343 days | 44% |
| Davina | 8/10 | 6343 days | 44% |
| Kath | 10/10 | 6346 days | 45% |
| Kate | 8/10 | 6354 days | 44% |
| Brenda | 8/10 | 6355 days | 44% |
| Amy | 8/10 | 6364 days | 44% |
| Katie | 10/10 | 6364 days | 45% |
| Christoffer | 10/10 | 6366 days | 45% |
| Rebecca | 9/10 | 6366 days | 45% |
| Suyin | 10/10 | 6366 days | 45% |
| Sarah | 6/10 | 6374 days | 39% |
| Michaela | 9/10 | 6379 days | 45% |
| Christopher | 6/10 | 6379 days | 39% |
| James | 8/10 | 6379 days | 44% |
| Sam Prior | 8/10 | 6383 days | 44% |
| jillian | 8/10 | 6388 days | 44% |
| George Burgas | 9/10 | 6392 days | 45% |
| stain weedman | 6/10 | 6398 days | 39% |
| Sharon Curly | 9/10 | 6400 days | 45% |
| Peddy | 7/10 | 6405 days | 42% |
| Tim | 5/10 | 6420 days | 34% |
| Thomas Fillary | 9/10 | 6436 days | 45% |
| Sjoerd | 8/10 | 6443 days | 44% |
| Gemma Harling | 9/10 | 6443 days | 45% |
| Charlie Bond | 9/10 | 6450 days | 45% |
| Florencia Cortese | 10/10 | 6510 days | 45% |
| Meike Biel | 7/10 | 6518 days | 42% |
| Helen | 9/10 | 6518 days | 45% |
| Ellie | 9/10 | 6531 days | 45% |
| Daniel | 7/10 | 6548 days | 42% |
| Omer Harron | 9/10 | 6548 days | 45% |
| Yayami Kimura | 10/10 | 6551 days | 45% |
| Kieran Concarr | 9/10 | 6551 days | 45% |
| Christian | 8/10 | 6555 days | 44% |
| Kathrin | 9/10 | 6559 days | 45% |
| Andreas Brett | 8/10 | 6561 days | 44% |
| Kristine Clemmensen Rotne | 7/10 | 6561 days | 42% |
| helga | 6/10 | 6562 days | 39% |
| Emily Houston | 10/10 | 6565 days | 45% |
| Hannah Holmes | 8/10 | 6568 days | 44% |
| Lisa Tame | 9/10 | 6569 days | 45% |
| Kelly | 9/10 | 6572 days | 45% |
| Stephanie | 10/10 | 6580 days | 45% |
| Sayaka | 7/10 | 6580 days | 42% |
| Marc Hertogs | 8/10 | 6584 days | 44% |
| Tanya Berthoud | 9/10 | 6586 days | 45% |
| Van Hoof | 8/10 | 6608 days | 44% |
| Berger | 8/10 | 6615 days | 44% |
| Travis Brennan | 9/10 | 6628 days | 45% |
| Alexis | 10/10 | 6642 days | 45% |
| Martine Arsac | 5/10 | 6650 days | 34% |
| Frida | 8/10 | 6652 days | 44% |
| Ben | 10/10 | 6653 days | 45% |
| Wendy Williams | 8/10 | 6660 days | 44% |
| Charlie Wilson | 10/10 | 6735 days | 45% |
| Ian Coldrake | 8/10 | 6735 days | 44% |
| Jill Bourke | 10/10 | 6740 days | 45% |
| Andy Chapman | 8/10 | 6770 days | 44% |
| Shelley | 10/10 | 6875 days | 45% |
| Will | 9/10 | 6884 days | 45% |
| Michael | 9/10 | 6886 days | 45% |
| Sue | 8/10 | 6886 days | 44% |
| Stefan | 8/10 | 6889 days | 44% |
| Jenny | 8/10 | 6892 days | 44% |
| Kate | 8/10 | 6894 days | 44% |
| Paul Yacoumis | 7/10 | 6896 days | 42% |
| Kathryn | 9/10 | 6901 days | 45% |
| Celia | 9/10 | 6903 days | 45% |
| Annelte | 4/10 | 6904 days | 29% |
| IdanNakash | 8/10 | 6904 days | 44% |
| Martin Christina | 9/10 | 6904 days | 45% |
| Chris | 8/10 | 6905 days | 44% |
| Janneke | 8/10 | 6905 days | 44% |
| Sue Robertson | 10/10 | 6907 days | 45% |
| Fenke | 7/10 | 6910 days | 42% |
| Bas | 7/10 | 6910 days | 42% |
| Daniel | 9/10 | 6912 days | 45% |
| Susan | 6/10 | 6918 days | 39% |
| ErikVanDam | 9/10 | 6924 days | 45% |
| MariaNorman | 9/10 | 6924 days | 45% |
| MarcHarris | 8/10 | 6924 days | 44% |
| Helena | 10/10 | 6924 days | 45% |
| Sarah | 10/10 | 6933 days | 45% |
| beesom | 8/10 | 6934 days | 44% |
| Peter | 5/10 | 6938 days | 34% |
| Sonja | 7/10 | 6945 days | 42% |
| Leah | 8/10 | 6946 days | 44% |
| Sarah | 10/10 | 6966 days | 45% |
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 53 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.19% |
| 203 | -4.21% |
| … | … |
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.