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 | 3372 days | 100% |
| Jessica Freeland | 10/10 | 3433 days | 93% |
| Nanna Overbeck | 10/10 | 3445 days | 92% |
| Joe Rogers | 9/10 | 3726 days | 60% |
| Nicola Wiggan | 9/10 | 3795 days | 52% |
| Ben McDougal | 10/10 | 3817 days | 51% |
| Maria Schober | 5/10 | 4104 days | 11% |
| Helen Parsons | 1/10 | 4112 days | 0% |
| Elisa Felising | 7/10 | 4112 days | 16% |
| Claudia de Winter | 9/10 | 4424 days | 44% |
| Penny Lee | 9/10 | 4426 days | 44% |
| Jeroen Suijlang | 8/10 | 4426 days | 44% |
| Ludvig Fagerstrom | 8/10 | 4500 days | 44% |
| Marco Schmidt | 10/10 | 4797 days | 45% |
| Christian Schumacher | 10/10 | 4797 days | 45% |
| Jennifer Bramstad | 8/10 | 4817 days | 44% |
| Evelina Johansson | 8/10 | 4817 days | 44% |
| Sofia Anderson | 10/10 | 4817 days | 45% |
| Steve | 5/10 | 4818 days | 31% |
| Janine Kohlgrueler | 9/10 | 4825 days | 44% |
| Fraser Goldsmith | 9/10 | 4842 days | 44% |
| Nigel Leighton | 10/10 | 4896 days | 45% |
| Jonathan Vondette | 7/10 | 4899 days | 41% |
| Andreas and Christine and Nora Busch | 10/10 | 4907 days | 45% |
| lavonc | 3/10 | 4938 days | 19% |
| peterpiper | 10/10 | 5122 days | 45% |
| sandytemp22 | 10/10 | 5152 days | 45% |
| Laura vanGool | 10/10 | 5168 days | 45% |
| Barbara Berkhout | 7/10 | 5168 days | 41% |
| Jurgen Joyce | 8/10 | 5175 days | 44% |
| Carole Carter | 9/10 | 5175 days | 44% |
| Sabrina Germany | 9/10 | 5178 days | 44% |
| J Jmal | 10/10 | 5179 days | 45% |
| Malena | 10/10 | 5183 days | 45% |
| Erik | 10/10 | 5185 days | 45% |
| Marion Hassink | 8/10 | 5189 days | 44% |
| Baas | 8/10 | 5192 days | 44% |
| Barbara | 10/10 | 5193 days | 45% |
| Rebecca Richardson | 8/10 | 5194 days | 44% |
| Andrew Powell | 7/10 | 5194 days | 41% |
| Andy Bridgman | 8/10 | 5197 days | 44% |
| Aoife Lillis | 7/10 | 5200 days | 41% |
| Rainer Schnell | 8/10 | 5204 days | 44% |
| Filsack | 8/10 | 5204 days | 44% |
| Hazel | 10/10 | 5205 days | 45% |
| Frank Waskikowski | 9/10 | 5206 days | 44% |
| Andreas Kristiansen | 9/10 | 5206 days | 44% |
| Robert MacLeod-Smith | 8/10 | 5208 days | 44% |
| Chris Marsh | 6/10 | 5209 days | 37% |
| Jessica Lane | 7/10 | 5209 days | 41% |
| Francis Corrigan | 7/10 | 5213 days | 41% |
| Laura Smith | 9/10 | 5225 days | 44% |
| Dean | 8/10 | 5258 days | 44% |
| Berry | 10/10 | 5285 days | 45% |
| Steve | 9/10 | 5288 days | 44% |
| MaggieYChaChi | 9/10 | 5365 days | 44% |
| GenH | 9/10 | 5488 days | 44% |
| Allison Meyoz | 9/10 | 5494 days | 44% |
| G Tulloch | 9/10 | 5512 days | 44% |
| Stephen Hunt | 9/10 | 5514 days | 44% |
| Thomas Klebensberger | 10/10 | 5514 days | 45% |
| Therea | 10/10 | 5517 days | 45% |
| Sean Brownell | 7/10 | 5518 days | 41% |
| Laura Thrower | 10/10 | 5523 days | 45% |
| David Taylor | 9/10 | 5523 days | 44% |
| Stefan Schmitz | 8/10 | 5531 days | 44% |
| Marii Joekalda | 8/10 | 5532 days | 44% |
| Frank & Ruth | 6/10 | 5533 days | 37% |
| Nathalie | 10/10 | 5533 days | 45% |
| Jo Meekley | 7/10 | 5533 days | 41% |
| Margit and Corein Groenevelt | 8/10 | 5535 days | 44% |
| Judith | 9/10 | 5535 days | 44% |
| Ven | 8/10 | 5535 days | 44% |
| Florian | 8/10 | 5539 days | 44% |
| Helen | 9/10 | 5539 days | 44% |
| Juliane Kleiu | 10/10 | 5539 days | 45% |
| Paula Dove | 10/10 | 5539 days | 45% |
| Erin | 8/10 | 5540 days | 44% |
| Walter Buschta | 8/10 | 5540 days | 44% |
| Wouter Moui | 6/10 | 5541 days | 37% |
| K Dahmer | 8/10 | 5542 days | 44% |
| Jonathan Cree | 9/10 | 5542 days | 44% |
| Laura Leigh | 10/10 | 5542 days | 45% |
| Ann-Kathrin Auditor | 10/10 | 5543 days | 45% |
| Katherine Forward | 8/10 | 5543 days | 44% |
| Chris Ashton | 10/10 | 5543 days | 45% |
| Jerry & Floon | 7/10 | 5547 days | 41% |
| Hadar Zevulun | 9/10 | 5548 days | 44% |
| Grumbach | 9/10 | 5552 days | 44% |
| Caroline Sheridan | 9/10 | 5553 days | 44% |
| Chris Darlington | 10/10 | 5557 days | 45% |
| Cheryl | 10/10 | 5567 days | 45% |
| Mark Aarts | 9/10 | 5568 days | 44% |
| Samuel Prechel | 8/10 | 5569 days | 44% |
| Dave and Lin Mungham | 10/10 | 5570 days | 45% |
| Gordon Daniels | 8/10 | 5572 days | 44% |
| Dr Dorthe Bossow | 3/10 | 5573 days | 19% |
| Helen Gilbertson | 8/10 | 5576 days | 44% |
| Doris Neuber | 9/10 | 5576 days | 44% |
| Ashleigh Buckley | 8/10 | 5577 days | 44% |
| PerspirationJournal | 10/10 | 5669 days | 45% |
| alku83 | 10/10 | 5669 days | 45% |
| Mary Van | 8/10 | 5730 days | 44% |
| chloe1111 | 10/10 | 5853 days | 45% |
| jenniferuk | 9/10 | 5853 days | 44% |
| Peter and Hilda | 10/10 | 5883 days | 45% |
| Einar | 9/10 | 5902 days | 44% |
| Inbar Yizhar Barnea | 8/10 | 5902 days | 44% |
| Tanya | 9/10 | 5907 days | 44% |
| Jana Steve | 10/10 | 5908 days | 45% |
| Yasmin Abrahams | 7/10 | 5916 days | 41% |
| Barbara & Sven | 10/10 | 5916 days | 45% |
| Judith | 8/10 | 5920 days | 44% |
| Henrik Hougs | 8/10 | 5922 days | 44% |
| Chris Glasg | 9/10 | 5922 days | 44% |
| Michael | 10/10 | 5924 days | 45% |
| Gary Ebrig | 10/10 | 5927 days | 45% |
| Mathias | 9/10 | 5929 days | 44% |
| Jamie | 9/10 | 5934 days | 44% |
| David Hobson | 8/10 | 5934 days | 44% |
| Christian | 10/10 | 5934 days | 45% |
| vanijzendoor | 8/10 | 5937 days | 44% |
| Dick Rosman | 8/10 | 5938 days | 44% |
| Frances Hay | 8/10 | 5941 days | 44% |
| Chance McGuire | 10/10 | 5942 days | 45% |
| Kevin and Teresa | 8/10 | 5942 days | 44% |
| Ben Miklozek | 9/10 | 5942 days | 44% |
| Marianne Lovdal | 9/10 | 5942 days | 44% |
| Jessica | 5/10 | 5947 days | 31% |
| S Luis Van Oler | 6/10 | 5947 days | 37% |
| sophiep | 8/10 | 5988 days | 44% |
| katharinatum | 9/10 | 5988 days | 44% |
| koellner | 6/10 | 6002 days | 37% |
| chrish1 | 9/10 | 6004 days | 44% |
| Fred Findlay | 7/10 | 6016 days | 41% |
| maleta | 9/10 | 6025 days | 44% |
| Gemma Morris | 10/10 | 6027 days | 45% |
| TomL | 10/10 | 6034 days | 45% |
| Pauline Wan | 7/10 | 6034 days | 41% |
| eowyn2k | 7/10 | 6034 days | 41% |
| Suzanne | 9/10 | 6065 days | 44% |
| terryd | 9/10 | 6126 days | 44% |
| kindel | 6/10 | 6130 days | 37% |
| Emear Donnelly | 10/10 | 6169 days | 45% |
| zoed | 7/10 | 6203 days | 41% |
| steph_m | 9/10 | 6218 days | 44% |
| Charles Lyne | 10/10 | 6218 days | 45% |
| BenM1 | 7/10 | 6227 days | 41% |
| KimC | 8/10 | 6236 days | 44% |
| JonK | 8/10 | 6236 days | 44% |
| TschaneK | 10/10 | 6238 days | 45% |
| RogerW | 10/10 | 6240 days | 45% |
| NicolaW | 10/10 | 6240 days | 45% |
| Lisa Duin | 8/10 | 6246 days | 44% |
| Joanna Harrnon | 9/10 | 6247 days | 44% |
| David | 8/10 | 6248 days | 44% |
| johnst | 10/10 | 6248 days | 45% |
| Adi | 10/10 | 6249 days | 45% |
| Sally477 | 9/10 | 6249 days | 44% |
| Becca1 | 9/10 | 6250 days | 44% |
| Jelle | 8/10 | 6251 days | 44% |
| Denys | 8/10 | 6252 days | 44% |
| Ronny | 9/10 | 6252 days | 44% |
| Viktoria Stoffel | 10/10 | 6255 days | 45% |
| Jon Li | 9/10 | 6260 days | 44% |
| Han Disveld | 9/10 | 6260 days | 44% |
| BevanLisa | 10/10 | 6265 days | 45% |
| SabineGermany | 10/10 | 6266 days | 45% |
| StefanGermany1 | 9/10 | 6266 days | 44% |
| AnjaC | 7/10 | 6266 days | 41% |
| AnjaChrist | 7/10 | 6266 days | 41% |
| Torsten | 9/10 | 6268 days | 44% |
| MarcoJ | 8/10 | 6268 days | 44% |
| James O'Neil | 10/10 | 6268 days | 45% |
| Barry Smith | 10/10 | 6268 days | 45% |
| Siemens | 8/10 | 6268 days | 44% |
| AlexH | 10/10 | 6269 days | 45% |
| AnnickH | 6/10 | 6270 days | 37% |
| Rene | 8/10 | 6272 days | 44% |
| Dorothee | 8/10 | 6272 days | 44% |
| Rob | 7/10 | 6272 days | 41% |
| Mike | 6/10 | 6272 days | 37% |
| TammyH | 9/10 | 6274 days | 44% |
| Lynn White | 7/10 | 6275 days | 41% |
| Mette | 8/10 | 6279 days | 44% |
| Axel | 5/10 | 6279 days | 31% |
| amyd | 8/10 | 6279 days | 44% |
| Susan | 9/10 | 6281 days | 44% |
| lannie | 5/10 | 6282 days | 31% |
| XaviG | 9/10 | 6282 days | 44% |
| ChenM | 8/10 | 6282 days | 44% |
| Steven | 9/10 | 6282 days | 44% |
| CarleyJ | 8/10 | 6282 days | 44% |
| JesusB | 7/10 | 6282 days | 41% |
| GingerPrince | 9/10 | 6282 days | 44% |
| Steve | 10/10 | 6282 days | 45% |
| Claudia | 9/10 | 6285 days | 44% |
| Pascal | 8/10 | 6285 days | 44% |
| Karen | 9/10 | 6287 days | 44% |
| RandiL | 7/10 | 6290 days | 41% |
| IreneF | 9/10 | 6291 days | 44% |
| Rachel | 8/10 | 6298 days | 44% |
| Adi | 10/10 | 6298 days | 45% |
| Claire | 8/10 | 6298 days | 44% |
| Philippa | 9/10 | 6299 days | 44% |
| Conway | 9/10 | 6299 days | 44% |
| orianne | 10/10 | 6305 days | 45% |
| Caroline | 7/10 | 6305 days | 41% |
| Eike | 9/10 | 6313 days | 44% |
| Benni | 7/10 | 6314 days | 41% |
| John | 6/10 | 6318 days | 37% |
| Dan | 9/10 | 6321 days | 44% |
| Sally | 9/10 | 6321 days | 44% |
| Rosa | 4/10 | 6322 days | 25% |
| Sascha | 7/10 | 6322 days | 41% |
| Dassel | 8/10 | 6322 days | 44% |
| Eric | 3/10 | 6324 days | 19% |
| Charlie | 9/10 | 6329 days | 44% |
| tommfuller | 7/10 | 6332 days | 41% |
| Anouk | 9/10 | 6361 days | 44% |
| MissTraveller2009 | 10/10 | 6369 days | 45% |
| David | 9/10 | 6374 days | 44% |
| Laura | 9/10 | 6374 days | 44% |
| Adam | 8/10 | 6379 days | 44% |
| mike brett | 7/10 | 6382 days | 41% |
| georgepearse | 9/10 | 6420 days | 44% |
| Aoife | 8/10 | 6423 days | 44% |
| Davina | 8/10 | 6423 days | 44% |
| Kath | 10/10 | 6426 days | 45% |
| Kate | 8/10 | 6435 days | 44% |
| Brenda | 8/10 | 6435 days | 44% |
| Amy | 8/10 | 6444 days | 44% |
| Katie | 10/10 | 6444 days | 45% |
| Christoffer | 10/10 | 6446 days | 45% |
| Rebecca | 9/10 | 6446 days | 44% |
| Suyin | 10/10 | 6446 days | 45% |
| Sarah | 6/10 | 6455 days | 37% |
| Michaela | 9/10 | 6459 days | 44% |
| Christopher | 6/10 | 6459 days | 37% |
| James | 8/10 | 6459 days | 44% |
| Sam Prior | 8/10 | 6464 days | 44% |
| jillian | 8/10 | 6468 days | 44% |
| George Burgas | 9/10 | 6473 days | 44% |
| stain weedman | 6/10 | 6478 days | 37% |
| Sharon Curly | 9/10 | 6481 days | 44% |
| Peddy | 7/10 | 6485 days | 41% |
| Tim | 5/10 | 6500 days | 31% |
| Thomas Fillary | 9/10 | 6517 days | 44% |
| Sjoerd | 8/10 | 6523 days | 44% |
| Gemma Harling | 9/10 | 6523 days | 44% |
| Charlie Bond | 9/10 | 6530 days | 44% |
| Florencia Cortese | 10/10 | 6590 days | 45% |
| Meike Biel | 7/10 | 6598 days | 41% |
| Helen | 9/10 | 6598 days | 44% |
| Ellie | 9/10 | 6611 days | 44% |
| Daniel | 7/10 | 6628 days | 41% |
| Omer Harron | 9/10 | 6628 days | 44% |
| Yayami Kimura | 10/10 | 6631 days | 45% |
| Kieran Concarr | 9/10 | 6631 days | 44% |
| Christian | 8/10 | 6635 days | 44% |
| Kathrin | 9/10 | 6639 days | 44% |
| Andreas Brett | 8/10 | 6641 days | 44% |
| Kristine Clemmensen Rotne | 7/10 | 6641 days | 41% |
| helga | 6/10 | 6642 days | 37% |
| Emily Houston | 10/10 | 6645 days | 45% |
| Hannah Holmes | 8/10 | 6648 days | 44% |
| Lisa Tame | 9/10 | 6649 days | 44% |
| Kelly | 9/10 | 6652 days | 44% |
| Stephanie | 10/10 | 6660 days | 45% |
| Sayaka | 7/10 | 6660 days | 41% |
| Marc Hertogs | 8/10 | 6664 days | 44% |
| Tanya Berthoud | 9/10 | 6666 days | 44% |
| Van Hoof | 8/10 | 6688 days | 44% |
| Berger | 8/10 | 6695 days | 44% |
| Travis Brennan | 9/10 | 6708 days | 44% |
| Alexis | 10/10 | 6722 days | 45% |
| Martine Arsac | 5/10 | 6730 days | 31% |
| Frida | 8/10 | 6732 days | 44% |
| Ben | 10/10 | 6733 days | 45% |
| Wendy Williams | 8/10 | 6740 days | 44% |
| Charlie Wilson | 10/10 | 6815 days | 45% |
| Ian Coldrake | 8/10 | 6815 days | 44% |
| Jill Bourke | 10/10 | 6820 days | 45% |
| Andy Chapman | 8/10 | 6850 days | 44% |
| Shelley | 10/10 | 6955 days | 45% |
| Will | 9/10 | 6964 days | 44% |
| Michael | 9/10 | 6966 days | 44% |
| Sue | 8/10 | 6966 days | 44% |
| Stefan | 8/10 | 6969 days | 44% |
| Jenny | 8/10 | 6972 days | 44% |
| Kate | 8/10 | 6974 days | 44% |
| Paul Yacoumis | 7/10 | 6976 days | 41% |
| Kathryn | 9/10 | 6981 days | 44% |
| Celia | 9/10 | 6983 days | 44% |
| Annelte | 4/10 | 6984 days | 25% |
| IdanNakash | 8/10 | 6984 days | 44% |
| Martin Christina | 9/10 | 6984 days | 44% |
| Chris | 8/10 | 6985 days | 44% |
| Janneke | 8/10 | 6985 days | 44% |
| Sue Robertson | 10/10 | 6987 days | 45% |
| Fenke | 7/10 | 6990 days | 41% |
| Bas | 7/10 | 6990 days | 41% |
| Daniel | 9/10 | 6992 days | 44% |
| Susan | 6/10 | 6998 days | 37% |
| ErikVanDam | 9/10 | 7004 days | 44% |
| MariaNorman | 9/10 | 7004 days | 44% |
| MarcHarris | 8/10 | 7004 days | 44% |
| Helena | 10/10 | 7004 days | 45% |
| Sarah | 10/10 | 7013 days | 45% |
| beesom | 8/10 | 7014 days | 44% |
| Peter | 5/10 | 7018 days | 31% |
| Sonja | 7/10 | 7025 days | 41% |
| Leah | 8/10 | 7026 days | 44% |
| Sarah | 10/10 | 7046 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
-2.91% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 86 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 | -2.87% |
| 198 | -2.88% |
| 199 | -2.90% |
| 200 | -2.91% |
| 201 | -2.93% |
| 202 | -2.94% |
| 203 | -2.96% |
| … | … |
Balancing Adjustment
2.42% 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.