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 | 3555 days | 100% |
| Jessica Freeland | 10/10 | 3616 days | 92% |
| Nanna Overbeck | 10/10 | 3628 days | 91% |
| Joe Rogers | 9/10 | 3909 days | 55% |
| Nicola Wiggan | 9/10 | 3978 days | 46% |
| Ben McDougal | 10/10 | 4000 days | 44% |
| Maria Schober | 5/10 | 4287 days | 5% |
| Helen Parsons | 1/10 | 4295 days | 0% |
| Elisa Felising | 7/10 | 4295 days | 6% |
| Claudia de Winter | 9/10 | 4607 days | 60% |
| Penny Lee | 9/10 | 4609 days | 60% |
| Jeroen Suijlang | 8/10 | 4609 days | 59% |
| Ludvig Fagerstrom | 8/10 | 4683 days | 59% |
| Marco Schmidt | 10/10 | 4980 days | 60% |
| Christian Schumacher | 10/10 | 4980 days | 60% |
| Jennifer Bramstad | 8/10 | 5000 days | 59% |
| Evelina Johansson | 8/10 | 5000 days | 59% |
| Sofia Anderson | 10/10 | 5000 days | 60% |
| Steve | 5/10 | 5001 days | 45% |
| Janine Kohlgrueler | 9/10 | 5008 days | 60% |
| Fraser Goldsmith | 9/10 | 5025 days | 60% |
| Nigel Leighton | 10/10 | 5079 days | 60% |
| Jonathan Vondette | 7/10 | 5082 days | 56% |
| Andreas and Christine and Nora Busch | 10/10 | 5090 days | 60% |
| lavonc | 3/10 | 5121 days | 31% |
| peterpiper | 10/10 | 5305 days | 60% |
| sandytemp22 | 10/10 | 5335 days | 60% |
| Laura vanGool | 10/10 | 5351 days | 60% |
| Barbara Berkhout | 7/10 | 5351 days | 56% |
| Jurgen Joyce | 8/10 | 5358 days | 59% |
| Carole Carter | 9/10 | 5358 days | 60% |
| Sabrina Germany | 9/10 | 5361 days | 60% |
| J Jmal | 10/10 | 5362 days | 60% |
| Malena | 10/10 | 5366 days | 60% |
| Erik | 10/10 | 5368 days | 60% |
| Marion Hassink | 8/10 | 5372 days | 59% |
| Baas | 8/10 | 5375 days | 59% |
| Barbara | 10/10 | 5376 days | 60% |
| Rebecca Richardson | 8/10 | 5377 days | 59% |
| Andrew Powell | 7/10 | 5377 days | 56% |
| Andy Bridgman | 8/10 | 5380 days | 59% |
| Aoife Lillis | 7/10 | 5383 days | 56% |
| Rainer Schnell | 8/10 | 5387 days | 59% |
| Filsack | 8/10 | 5387 days | 59% |
| Hazel | 10/10 | 5388 days | 60% |
| Frank Waskikowski | 9/10 | 5389 days | 60% |
| Andreas Kristiansen | 9/10 | 5389 days | 60% |
| Robert MacLeod-Smith | 8/10 | 5391 days | 59% |
| Chris Marsh | 6/10 | 5392 days | 51% |
| Jessica Lane | 7/10 | 5392 days | 56% |
| Francis Corrigan | 7/10 | 5396 days | 56% |
| Laura Smith | 9/10 | 5408 days | 60% |
| Dean | 8/10 | 5441 days | 59% |
| Berry | 10/10 | 5468 days | 60% |
| Steve | 9/10 | 5471 days | 60% |
| MaggieYChaChi | 9/10 | 5548 days | 60% |
| GenH | 9/10 | 5671 days | 60% |
| Allison Meyoz | 9/10 | 5677 days | 60% |
| G Tulloch | 9/10 | 5695 days | 60% |
| Stephen Hunt | 9/10 | 5697 days | 60% |
| Thomas Klebensberger | 10/10 | 5697 days | 60% |
| Therea | 10/10 | 5700 days | 60% |
| Sean Brownell | 7/10 | 5701 days | 56% |
| Laura Thrower | 10/10 | 5706 days | 60% |
| David Taylor | 9/10 | 5706 days | 60% |
| Stefan Schmitz | 8/10 | 5714 days | 59% |
| Marii Joekalda | 8/10 | 5715 days | 59% |
| Frank & Ruth | 6/10 | 5716 days | 51% |
| Nathalie | 10/10 | 5716 days | 60% |
| Jo Meekley | 7/10 | 5716 days | 56% |
| Margit and Corein Groenevelt | 8/10 | 5718 days | 59% |
| Judith | 9/10 | 5718 days | 60% |
| Ven | 8/10 | 5718 days | 59% |
| Florian | 8/10 | 5722 days | 59% |
| Helen | 9/10 | 5722 days | 60% |
| Juliane Kleiu | 10/10 | 5722 days | 60% |
| Paula Dove | 10/10 | 5722 days | 60% |
| Erin | 8/10 | 5723 days | 59% |
| Walter Buschta | 8/10 | 5723 days | 59% |
| Wouter Moui | 6/10 | 5724 days | 51% |
| K Dahmer | 8/10 | 5725 days | 59% |
| Jonathan Cree | 9/10 | 5725 days | 60% |
| Laura Leigh | 10/10 | 5725 days | 60% |
| Ann-Kathrin Auditor | 10/10 | 5726 days | 60% |
| Katherine Forward | 8/10 | 5726 days | 59% |
| Chris Ashton | 10/10 | 5726 days | 60% |
| Jerry & Floon | 7/10 | 5730 days | 56% |
| Hadar Zevulun | 9/10 | 5731 days | 60% |
| Grumbach | 9/10 | 5735 days | 60% |
| Caroline Sheridan | 9/10 | 5736 days | 60% |
| Chris Darlington | 10/10 | 5740 days | 60% |
| Cheryl | 10/10 | 5750 days | 60% |
| Mark Aarts | 9/10 | 5751 days | 60% |
| Samuel Prechel | 8/10 | 5752 days | 59% |
| Dave and Lin Mungham | 10/10 | 5753 days | 60% |
| Gordon Daniels | 8/10 | 5755 days | 59% |
| Dr Dorthe Bossow | 3/10 | 5756 days | 31% |
| Helen Gilbertson | 8/10 | 5759 days | 59% |
| Doris Neuber | 9/10 | 5759 days | 60% |
| Ashleigh Buckley | 8/10 | 5760 days | 59% |
| PerspirationJournal | 10/10 | 5852 days | 60% |
| alku83 | 10/10 | 5852 days | 60% |
| Mary Van | 8/10 | 5913 days | 59% |
| chloe1111 | 10/10 | 6036 days | 60% |
| jenniferuk | 9/10 | 6036 days | 60% |
| Peter and Hilda | 10/10 | 6066 days | 60% |
| Einar | 9/10 | 6085 days | 60% |
| Inbar Yizhar Barnea | 8/10 | 6085 days | 59% |
| Tanya | 9/10 | 6090 days | 60% |
| Jana Steve | 10/10 | 6091 days | 60% |
| Yasmin Abrahams | 7/10 | 6099 days | 56% |
| Barbara & Sven | 10/10 | 6099 days | 60% |
| Judith | 8/10 | 6103 days | 59% |
| Henrik Hougs | 8/10 | 6105 days | 59% |
| Chris Glasg | 9/10 | 6105 days | 60% |
| Michael | 10/10 | 6107 days | 60% |
| Gary Ebrig | 10/10 | 6110 days | 60% |
| Mathias | 9/10 | 6112 days | 60% |
| Jamie | 9/10 | 6117 days | 60% |
| David Hobson | 8/10 | 6117 days | 59% |
| Christian | 10/10 | 6117 days | 60% |
| vanijzendoor | 8/10 | 6120 days | 59% |
| Dick Rosman | 8/10 | 6121 days | 59% |
| Frances Hay | 8/10 | 6124 days | 59% |
| Chance McGuire | 10/10 | 6125 days | 60% |
| Kevin and Teresa | 8/10 | 6125 days | 59% |
| Ben Miklozek | 9/10 | 6125 days | 60% |
| Marianne Lovdal | 9/10 | 6125 days | 60% |
| Jessica | 5/10 | 6130 days | 45% |
| S Luis Van Oler | 6/10 | 6130 days | 51% |
| sophiep | 8/10 | 6171 days | 59% |
| katharinatum | 9/10 | 6171 days | 60% |
| koellner | 6/10 | 6185 days | 51% |
| chrish1 | 9/10 | 6187 days | 60% |
| Fred Findlay | 7/10 | 6199 days | 56% |
| maleta | 9/10 | 6208 days | 60% |
| Gemma Morris | 10/10 | 6210 days | 60% |
| TomL | 10/10 | 6217 days | 60% |
| Pauline Wan | 7/10 | 6217 days | 56% |
| eowyn2k | 7/10 | 6217 days | 56% |
| Suzanne | 9/10 | 6248 days | 60% |
| terryd | 9/10 | 6309 days | 60% |
| kindel | 6/10 | 6313 days | 51% |
| Emear Donnelly | 10/10 | 6352 days | 60% |
| zoed | 7/10 | 6386 days | 56% |
| steph_m | 9/10 | 6401 days | 60% |
| Charles Lyne | 10/10 | 6401 days | 60% |
| BenM1 | 7/10 | 6410 days | 56% |
| KimC | 8/10 | 6419 days | 59% |
| JonK | 8/10 | 6419 days | 59% |
| TschaneK | 10/10 | 6421 days | 60% |
| RogerW | 10/10 | 6423 days | 60% |
| NicolaW | 10/10 | 6423 days | 60% |
| Lisa Duin | 8/10 | 6429 days | 59% |
| Joanna Harrnon | 9/10 | 6430 days | 60% |
| David | 8/10 | 6431 days | 59% |
| johnst | 10/10 | 6431 days | 60% |
| Adi | 10/10 | 6431 days | 60% |
| Sally477 | 9/10 | 6432 days | 60% |
| Becca1 | 9/10 | 6433 days | 60% |
| Jelle | 8/10 | 6434 days | 59% |
| Denys | 8/10 | 6435 days | 59% |
| Ronny | 9/10 | 6435 days | 60% |
| Viktoria Stoffel | 10/10 | 6438 days | 60% |
| Jon Li | 9/10 | 6443 days | 60% |
| Han Disveld | 9/10 | 6443 days | 60% |
| BevanLisa | 10/10 | 6448 days | 60% |
| SabineGermany | 10/10 | 6449 days | 60% |
| StefanGermany1 | 9/10 | 6449 days | 60% |
| AnjaC | 7/10 | 6449 days | 56% |
| AnjaChrist | 7/10 | 6449 days | 56% |
| Torsten | 9/10 | 6450 days | 60% |
| MarcoJ | 8/10 | 6451 days | 59% |
| James O'Neil | 10/10 | 6451 days | 60% |
| Barry Smith | 10/10 | 6451 days | 60% |
| Siemens | 8/10 | 6451 days | 59% |
| AlexH | 10/10 | 6452 days | 60% |
| AnnickH | 6/10 | 6453 days | 51% |
| Rene | 8/10 | 6455 days | 59% |
| Dorothee | 8/10 | 6455 days | 59% |
| Rob | 7/10 | 6455 days | 56% |
| Mike | 6/10 | 6455 days | 51% |
| TammyH | 9/10 | 6457 days | 60% |
| Lynn White | 7/10 | 6458 days | 56% |
| Mette | 8/10 | 6462 days | 59% |
| Axel | 5/10 | 6462 days | 45% |
| amyd | 8/10 | 6462 days | 59% |
| Susan | 9/10 | 6464 days | 60% |
| lannie | 5/10 | 6465 days | 45% |
| XaviG | 9/10 | 6465 days | 60% |
| ChenM | 8/10 | 6465 days | 59% |
| Steven | 9/10 | 6465 days | 60% |
| CarleyJ | 8/10 | 6465 days | 59% |
| JesusB | 7/10 | 6465 days | 56% |
| GingerPrince | 9/10 | 6465 days | 60% |
| Steve | 10/10 | 6465 days | 60% |
| Claudia | 9/10 | 6468 days | 60% |
| Pascal | 8/10 | 6468 days | 59% |
| Karen | 9/10 | 6470 days | 60% |
| RandiL | 7/10 | 6473 days | 56% |
| IreneF | 9/10 | 6474 days | 60% |
| Rachel | 8/10 | 6480 days | 59% |
| Adi | 10/10 | 6481 days | 60% |
| Claire | 8/10 | 6481 days | 59% |
| Philippa | 9/10 | 6482 days | 60% |
| Conway | 9/10 | 6482 days | 60% |
| orianne | 10/10 | 6488 days | 60% |
| Caroline | 7/10 | 6488 days | 56% |
| Eike | 9/10 | 6496 days | 60% |
| Benni | 7/10 | 6497 days | 56% |
| John | 6/10 | 6500 days | 51% |
| Dan | 9/10 | 6504 days | 60% |
| Sally | 9/10 | 6504 days | 60% |
| Rosa | 4/10 | 6504 days | 38% |
| Sascha | 7/10 | 6505 days | 56% |
| Dassel | 8/10 | 6505 days | 59% |
| Eric | 3/10 | 6507 days | 31% |
| Charlie | 9/10 | 6512 days | 60% |
| tommfuller | 7/10 | 6515 days | 56% |
| Anouk | 9/10 | 6544 days | 60% |
| MissTraveller2009 | 10/10 | 6552 days | 60% |
| David | 9/10 | 6557 days | 60% |
| Laura | 9/10 | 6557 days | 60% |
| Adam | 8/10 | 6562 days | 59% |
| mike brett | 7/10 | 6565 days | 56% |
| georgepearse | 9/10 | 6603 days | 60% |
| Aoife | 8/10 | 6606 days | 59% |
| Davina | 8/10 | 6606 days | 59% |
| Kath | 10/10 | 6609 days | 60% |
| Kate | 8/10 | 6617 days | 59% |
| Brenda | 8/10 | 6618 days | 59% |
| Amy | 8/10 | 6627 days | 59% |
| Katie | 10/10 | 6627 days | 60% |
| Christoffer | 10/10 | 6629 days | 60% |
| Rebecca | 9/10 | 6629 days | 60% |
| Suyin | 10/10 | 6629 days | 60% |
| Sarah | 6/10 | 6638 days | 51% |
| Michaela | 9/10 | 6642 days | 60% |
| Christopher | 6/10 | 6642 days | 51% |
| James | 8/10 | 6642 days | 59% |
| Sam Prior | 8/10 | 6647 days | 59% |
| jillian | 8/10 | 6651 days | 59% |
| George Burgas | 9/10 | 6656 days | 60% |
| stain weedman | 6/10 | 6661 days | 51% |
| Sharon Curly | 9/10 | 6664 days | 60% |
| Peddy | 7/10 | 6668 days | 56% |
| Tim | 5/10 | 6683 days | 45% |
| Thomas Fillary | 9/10 | 6700 days | 60% |
| Sjoerd | 8/10 | 6706 days | 59% |
| Gemma Harling | 9/10 | 6706 days | 60% |
| Charlie Bond | 9/10 | 6713 days | 60% |
| Florencia Cortese | 10/10 | 6773 days | 60% |
| Meike Biel | 7/10 | 6781 days | 56% |
| Helen | 9/10 | 6781 days | 60% |
| Ellie | 9/10 | 6794 days | 60% |
| Daniel | 7/10 | 6811 days | 56% |
| Omer Harron | 9/10 | 6811 days | 60% |
| Yayami Kimura | 10/10 | 6814 days | 60% |
| Kieran Concarr | 9/10 | 6814 days | 60% |
| Christian | 8/10 | 6818 days | 59% |
| Kathrin | 9/10 | 6822 days | 60% |
| Andreas Brett | 8/10 | 6824 days | 59% |
| Kristine Clemmensen Rotne | 7/10 | 6824 days | 56% |
| helga | 6/10 | 6825 days | 51% |
| Emily Houston | 10/10 | 6828 days | 60% |
| Hannah Holmes | 8/10 | 6831 days | 59% |
| Lisa Tame | 9/10 | 6832 days | 60% |
| Kelly | 9/10 | 6835 days | 60% |
| Stephanie | 10/10 | 6843 days | 60% |
| Sayaka | 7/10 | 6843 days | 56% |
| Marc Hertogs | 8/10 | 6847 days | 59% |
| Tanya Berthoud | 9/10 | 6849 days | 60% |
| Van Hoof | 8/10 | 6871 days | 59% |
| Berger | 8/10 | 6878 days | 59% |
| Travis Brennan | 9/10 | 6891 days | 60% |
| Alexis | 10/10 | 6905 days | 60% |
| Martine Arsac | 5/10 | 6913 days | 45% |
| Frida | 8/10 | 6915 days | 59% |
| Ben | 10/10 | 6916 days | 60% |
| Wendy Williams | 8/10 | 6923 days | 59% |
| Charlie Wilson | 10/10 | 6998 days | 60% |
| Ian Coldrake | 8/10 | 6998 days | 59% |
| Jill Bourke | 10/10 | 7003 days | 60% |
| Andy Chapman | 8/10 | 7033 days | 59% |
| Shelley | 10/10 | 7138 days | 60% |
| Will | 9/10 | 7147 days | 60% |
| Michael | 9/10 | 7149 days | 60% |
| Sue | 8/10 | 7149 days | 59% |
| Stefan | 8/10 | 7152 days | 59% |
| Jenny | 8/10 | 7155 days | 59% |
| Kate | 8/10 | 7157 days | 59% |
| Paul Yacoumis | 7/10 | 7159 days | 56% |
| Kathryn | 9/10 | 7164 days | 60% |
| Celia | 9/10 | 7166 days | 60% |
| Annelte | 4/10 | 7167 days | 38% |
| IdanNakash | 8/10 | 7167 days | 59% |
| Martin Christina | 9/10 | 7167 days | 60% |
| Chris | 8/10 | 7168 days | 59% |
| Janneke | 8/10 | 7168 days | 59% |
| Sue Robertson | 10/10 | 7170 days | 60% |
| Fenke | 7/10 | 7173 days | 56% |
| Bas | 7/10 | 7173 days | 56% |
| Daniel | 9/10 | 7175 days | 60% |
| Susan | 6/10 | 7181 days | 51% |
| ErikVanDam | 9/10 | 7187 days | 60% |
| MariaNorman | 9/10 | 7187 days | 60% |
| MarcHarris | 8/10 | 7187 days | 59% |
| Helena | 10/10 | 7187 days | 60% |
| Sarah | 10/10 | 7196 days | 60% |
| beesom | 8/10 | 7197 days | 59% |
| Peter | 5/10 | 7201 days | 45% |
| Sonja | 7/10 | 7208 days | 56% |
| Leah | 8/10 | 7209 days | 59% |
| Sarah | 10/10 | 7229 days | 60% |
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
-3.95% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 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 | -3.89% |
| 198 | -3.91% |
| 199 | -3.93% |
| 200 | -3.95% |
| 201 | -3.97% |
| 202 | -3.99% |
| 203 | -4.01% |
| … | … |
Balancing Adjustment
2.67% 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.