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 | 3535 days | 100% |
| Jessica Freeland | 10/10 | 3596 days | 92% |
| Nanna Overbeck | 10/10 | 3608 days | 91% |
| Joe Rogers | 9/10 | 3889 days | 55% |
| Nicola Wiggan | 9/10 | 3958 days | 47% |
| Ben McDougal | 10/10 | 3980 days | 45% |
| Maria Schober | 5/10 | 4267 days | 5% |
| Helen Parsons | 1/10 | 4275 days | 0% |
| Elisa Felising | 7/10 | 4275 days | 7% |
| Claudia de Winter | 9/10 | 4587 days | 58% |
| Penny Lee | 9/10 | 4589 days | 58% |
| Jeroen Suijlang | 8/10 | 4589 days | 57% |
| Ludvig Fagerstrom | 8/10 | 4663 days | 57% |
| Marco Schmidt | 10/10 | 4960 days | 58% |
| Christian Schumacher | 10/10 | 4960 days | 58% |
| Jennifer Bramstad | 8/10 | 4980 days | 57% |
| Evelina Johansson | 8/10 | 4980 days | 57% |
| Sofia Anderson | 10/10 | 4980 days | 58% |
| Steve | 5/10 | 4981 days | 43% |
| Janine Kohlgrueler | 9/10 | 4988 days | 58% |
| Fraser Goldsmith | 9/10 | 5005 days | 58% |
| Nigel Leighton | 10/10 | 5059 days | 58% |
| Jonathan Vondette | 7/10 | 5062 days | 54% |
| Andreas and Christine and Nora Busch | 10/10 | 5070 days | 58% |
| lavonc | 3/10 | 5101 days | 29% |
| peterpiper | 10/10 | 5285 days | 58% |
| sandytemp22 | 10/10 | 5315 days | 58% |
| Laura vanGool | 10/10 | 5331 days | 58% |
| Barbara Berkhout | 7/10 | 5331 days | 54% |
| Jurgen Joyce | 8/10 | 5338 days | 57% |
| Carole Carter | 9/10 | 5338 days | 58% |
| Sabrina Germany | 9/10 | 5341 days | 58% |
| J Jmal | 10/10 | 5342 days | 58% |
| Malena | 10/10 | 5346 days | 58% |
| Erik | 10/10 | 5348 days | 58% |
| Marion Hassink | 8/10 | 5352 days | 57% |
| Baas | 8/10 | 5355 days | 57% |
| Barbara | 10/10 | 5356 days | 58% |
| Rebecca Richardson | 8/10 | 5357 days | 57% |
| Andrew Powell | 7/10 | 5357 days | 54% |
| Andy Bridgman | 8/10 | 5360 days | 57% |
| Aoife Lillis | 7/10 | 5363 days | 54% |
| Rainer Schnell | 8/10 | 5367 days | 57% |
| Filsack | 8/10 | 5367 days | 57% |
| Hazel | 10/10 | 5368 days | 58% |
| Frank Waskikowski | 9/10 | 5369 days | 58% |
| Andreas Kristiansen | 9/10 | 5369 days | 58% |
| Robert MacLeod-Smith | 8/10 | 5371 days | 57% |
| Chris Marsh | 6/10 | 5372 days | 50% |
| Jessica Lane | 7/10 | 5372 days | 54% |
| Francis Corrigan | 7/10 | 5376 days | 54% |
| Laura Smith | 9/10 | 5388 days | 58% |
| Dean | 8/10 | 5421 days | 57% |
| Berry | 10/10 | 5448 days | 58% |
| Steve | 9/10 | 5451 days | 58% |
| MaggieYChaChi | 9/10 | 5528 days | 58% |
| GenH | 9/10 | 5651 days | 58% |
| Allison Meyoz | 9/10 | 5657 days | 58% |
| G Tulloch | 9/10 | 5675 days | 58% |
| Stephen Hunt | 9/10 | 5677 days | 58% |
| Thomas Klebensberger | 10/10 | 5677 days | 58% |
| Therea | 10/10 | 5680 days | 58% |
| Sean Brownell | 7/10 | 5681 days | 54% |
| Laura Thrower | 10/10 | 5686 days | 58% |
| David Taylor | 9/10 | 5686 days | 58% |
| Stefan Schmitz | 8/10 | 5694 days | 57% |
| Marii Joekalda | 8/10 | 5695 days | 57% |
| Frank & Ruth | 6/10 | 5696 days | 50% |
| Nathalie | 10/10 | 5696 days | 58% |
| Jo Meekley | 7/10 | 5696 days | 54% |
| Margit and Corein Groenevelt | 8/10 | 5698 days | 57% |
| Judith | 9/10 | 5698 days | 58% |
| Ven | 8/10 | 5698 days | 57% |
| Florian | 8/10 | 5702 days | 57% |
| Helen | 9/10 | 5702 days | 58% |
| Juliane Kleiu | 10/10 | 5702 days | 58% |
| Paula Dove | 10/10 | 5702 days | 58% |
| Erin | 8/10 | 5703 days | 57% |
| Walter Buschta | 8/10 | 5703 days | 57% |
| Wouter Moui | 6/10 | 5704 days | 50% |
| K Dahmer | 8/10 | 5705 days | 57% |
| Jonathan Cree | 9/10 | 5705 days | 58% |
| Laura Leigh | 10/10 | 5705 days | 58% |
| Ann-Kathrin Auditor | 10/10 | 5706 days | 58% |
| Katherine Forward | 8/10 | 5706 days | 57% |
| Chris Ashton | 10/10 | 5706 days | 58% |
| Jerry & Floon | 7/10 | 5710 days | 54% |
| Hadar Zevulun | 9/10 | 5711 days | 58% |
| Grumbach | 9/10 | 5715 days | 58% |
| Caroline Sheridan | 9/10 | 5716 days | 58% |
| Chris Darlington | 10/10 | 5720 days | 58% |
| Cheryl | 10/10 | 5730 days | 58% |
| Mark Aarts | 9/10 | 5731 days | 58% |
| Samuel Prechel | 8/10 | 5732 days | 57% |
| Dave and Lin Mungham | 10/10 | 5733 days | 58% |
| Gordon Daniels | 8/10 | 5735 days | 57% |
| Dr Dorthe Bossow | 3/10 | 5736 days | 29% |
| Helen Gilbertson | 8/10 | 5739 days | 57% |
| Doris Neuber | 9/10 | 5739 days | 58% |
| Ashleigh Buckley | 8/10 | 5740 days | 57% |
| PerspirationJournal | 10/10 | 5832 days | 58% |
| alku83 | 10/10 | 5832 days | 58% |
| Mary Van | 8/10 | 5893 days | 57% |
| chloe1111 | 10/10 | 6016 days | 58% |
| jenniferuk | 9/10 | 6016 days | 58% |
| Peter and Hilda | 10/10 | 6046 days | 58% |
| Einar | 9/10 | 6065 days | 58% |
| Inbar Yizhar Barnea | 8/10 | 6065 days | 57% |
| Tanya | 9/10 | 6070 days | 58% |
| Jana Steve | 10/10 | 6071 days | 58% |
| Yasmin Abrahams | 7/10 | 6079 days | 54% |
| Barbara & Sven | 10/10 | 6079 days | 58% |
| Judith | 8/10 | 6083 days | 57% |
| Henrik Hougs | 8/10 | 6085 days | 57% |
| Chris Glasg | 9/10 | 6085 days | 58% |
| Michael | 10/10 | 6087 days | 58% |
| Gary Ebrig | 10/10 | 6090 days | 58% |
| Mathias | 9/10 | 6092 days | 58% |
| Jamie | 9/10 | 6097 days | 58% |
| David Hobson | 8/10 | 6097 days | 57% |
| Christian | 10/10 | 6097 days | 58% |
| vanijzendoor | 8/10 | 6100 days | 57% |
| Dick Rosman | 8/10 | 6101 days | 57% |
| Frances Hay | 8/10 | 6104 days | 57% |
| Chance McGuire | 10/10 | 6105 days | 58% |
| Kevin and Teresa | 8/10 | 6105 days | 57% |
| Ben Miklozek | 9/10 | 6105 days | 58% |
| Marianne Lovdal | 9/10 | 6105 days | 58% |
| Jessica | 5/10 | 6110 days | 43% |
| S Luis Van Oler | 6/10 | 6110 days | 50% |
| sophiep | 8/10 | 6151 days | 57% |
| katharinatum | 9/10 | 6151 days | 58% |
| koellner | 6/10 | 6165 days | 50% |
| chrish1 | 9/10 | 6167 days | 58% |
| Fred Findlay | 7/10 | 6179 days | 54% |
| maleta | 9/10 | 6188 days | 58% |
| Gemma Morris | 10/10 | 6190 days | 58% |
| TomL | 10/10 | 6197 days | 58% |
| Pauline Wan | 7/10 | 6197 days | 54% |
| eowyn2k | 7/10 | 6197 days | 54% |
| Suzanne | 9/10 | 6228 days | 58% |
| terryd | 9/10 | 6289 days | 58% |
| kindel | 6/10 | 6293 days | 50% |
| Emear Donnelly | 10/10 | 6332 days | 58% |
| zoed | 7/10 | 6366 days | 54% |
| steph_m | 9/10 | 6381 days | 58% |
| Charles Lyne | 10/10 | 6381 days | 58% |
| BenM1 | 7/10 | 6390 days | 54% |
| KimC | 8/10 | 6399 days | 57% |
| JonK | 8/10 | 6399 days | 57% |
| TschaneK | 10/10 | 6401 days | 58% |
| RogerW | 10/10 | 6403 days | 58% |
| NicolaW | 10/10 | 6403 days | 58% |
| Lisa Duin | 8/10 | 6409 days | 57% |
| Joanna Harrnon | 9/10 | 6410 days | 58% |
| David | 8/10 | 6411 days | 57% |
| johnst | 10/10 | 6411 days | 58% |
| Adi | 10/10 | 6411 days | 58% |
| Sally477 | 9/10 | 6412 days | 58% |
| Becca1 | 9/10 | 6413 days | 58% |
| Jelle | 8/10 | 6414 days | 57% |
| Denys | 8/10 | 6415 days | 57% |
| Ronny | 9/10 | 6415 days | 58% |
| Viktoria Stoffel | 10/10 | 6418 days | 58% |
| Jon Li | 9/10 | 6423 days | 58% |
| Han Disveld | 9/10 | 6423 days | 58% |
| BevanLisa | 10/10 | 6428 days | 58% |
| SabineGermany | 10/10 | 6429 days | 58% |
| StefanGermany1 | 9/10 | 6429 days | 58% |
| AnjaC | 7/10 | 6429 days | 54% |
| AnjaChrist | 7/10 | 6429 days | 54% |
| Torsten | 9/10 | 6430 days | 58% |
| MarcoJ | 8/10 | 6431 days | 57% |
| James O'Neil | 10/10 | 6431 days | 58% |
| Barry Smith | 10/10 | 6431 days | 58% |
| Siemens | 8/10 | 6431 days | 57% |
| AlexH | 10/10 | 6432 days | 58% |
| AnnickH | 6/10 | 6433 days | 50% |
| Rene | 8/10 | 6434 days | 57% |
| Dorothee | 8/10 | 6434 days | 57% |
| Rob | 7/10 | 6434 days | 54% |
| Mike | 6/10 | 6435 days | 50% |
| TammyH | 9/10 | 6437 days | 58% |
| Lynn White | 7/10 | 6437 days | 54% |
| Mette | 8/10 | 6441 days | 57% |
| Axel | 5/10 | 6441 days | 43% |
| amyd | 8/10 | 6442 days | 57% |
| Susan | 9/10 | 6443 days | 58% |
| lannie | 5/10 | 6444 days | 43% |
| XaviG | 9/10 | 6445 days | 58% |
| ChenM | 8/10 | 6445 days | 57% |
| Steven | 9/10 | 6445 days | 58% |
| CarleyJ | 8/10 | 6445 days | 57% |
| JesusB | 7/10 | 6445 days | 54% |
| GingerPrince | 9/10 | 6445 days | 58% |
| Steve | 10/10 | 6445 days | 58% |
| Claudia | 9/10 | 6447 days | 58% |
| Pascal | 8/10 | 6447 days | 57% |
| Karen | 9/10 | 6450 days | 58% |
| RandiL | 7/10 | 6453 days | 54% |
| IreneF | 9/10 | 6454 days | 58% |
| Rachel | 8/10 | 6460 days | 57% |
| Adi | 10/10 | 6460 days | 58% |
| Claire | 8/10 | 6460 days | 57% |
| Philippa | 9/10 | 6461 days | 58% |
| Conway | 9/10 | 6461 days | 58% |
| orianne | 10/10 | 6468 days | 58% |
| Caroline | 7/10 | 6468 days | 54% |
| Eike | 9/10 | 6475 days | 58% |
| Benni | 7/10 | 6477 days | 54% |
| John | 6/10 | 6480 days | 50% |
| Dan | 9/10 | 6484 days | 58% |
| Sally | 9/10 | 6484 days | 58% |
| Rosa | 4/10 | 6484 days | 36% |
| Sascha | 7/10 | 6485 days | 54% |
| Dassel | 8/10 | 6485 days | 57% |
| Eric | 3/10 | 6486 days | 29% |
| Charlie | 9/10 | 6491 days | 58% |
| tommfuller | 7/10 | 6495 days | 54% |
| Anouk | 9/10 | 6523 days | 58% |
| MissTraveller2009 | 10/10 | 6532 days | 58% |
| David | 9/10 | 6537 days | 58% |
| Laura | 9/10 | 6537 days | 58% |
| Adam | 8/10 | 6541 days | 57% |
| mike brett | 7/10 | 6545 days | 54% |
| georgepearse | 9/10 | 6582 days | 58% |
| Aoife | 8/10 | 6585 days | 57% |
| Davina | 8/10 | 6586 days | 57% |
| Kath | 10/10 | 6588 days | 58% |
| Kate | 8/10 | 6597 days | 57% |
| Brenda | 8/10 | 6597 days | 57% |
| Amy | 8/10 | 6606 days | 57% |
| Katie | 10/10 | 6606 days | 58% |
| Christoffer | 10/10 | 6608 days | 58% |
| Rebecca | 9/10 | 6609 days | 58% |
| Suyin | 10/10 | 6609 days | 58% |
| Sarah | 6/10 | 6617 days | 50% |
| Michaela | 9/10 | 6621 days | 58% |
| Christopher | 6/10 | 6621 days | 50% |
| James | 8/10 | 6621 days | 57% |
| Sam Prior | 8/10 | 6626 days | 57% |
| jillian | 8/10 | 6630 days | 57% |
| George Burgas | 9/10 | 6635 days | 58% |
| stain weedman | 6/10 | 6641 days | 50% |
| Sharon Curly | 9/10 | 6643 days | 58% |
| Peddy | 7/10 | 6647 days | 54% |
| Tim | 5/10 | 6663 days | 43% |
| Thomas Fillary | 9/10 | 6679 days | 58% |
| Sjoerd | 8/10 | 6685 days | 57% |
| Gemma Harling | 9/10 | 6685 days | 58% |
| Charlie Bond | 9/10 | 6692 days | 58% |
| Florencia Cortese | 10/10 | 6753 days | 58% |
| Meike Biel | 7/10 | 6761 days | 54% |
| Helen | 9/10 | 6761 days | 58% |
| Ellie | 9/10 | 6773 days | 58% |
| Daniel | 7/10 | 6791 days | 54% |
| Omer Harron | 9/10 | 6791 days | 58% |
| Yayami Kimura | 10/10 | 6794 days | 58% |
| Kieran Concarr | 9/10 | 6794 days | 58% |
| Christian | 8/10 | 6798 days | 57% |
| Kathrin | 9/10 | 6802 days | 58% |
| Andreas Brett | 8/10 | 6804 days | 57% |
| Kristine Clemmensen Rotne | 7/10 | 6804 days | 54% |
| helga | 6/10 | 6804 days | 50% |
| Emily Houston | 10/10 | 6808 days | 58% |
| Hannah Holmes | 8/10 | 6811 days | 57% |
| Lisa Tame | 9/10 | 6812 days | 58% |
| Kelly | 9/10 | 6815 days | 58% |
| Stephanie | 10/10 | 6823 days | 58% |
| Sayaka | 7/10 | 6823 days | 54% |
| Marc Hertogs | 8/10 | 6827 days | 57% |
| Tanya Berthoud | 9/10 | 6829 days | 58% |
| Van Hoof | 8/10 | 6851 days | 57% |
| Berger | 8/10 | 6858 days | 57% |
| Travis Brennan | 9/10 | 6871 days | 58% |
| Alexis | 10/10 | 6885 days | 58% |
| Martine Arsac | 5/10 | 6893 days | 43% |
| Frida | 8/10 | 6895 days | 57% |
| Ben | 10/10 | 6896 days | 58% |
| Wendy Williams | 8/10 | 6903 days | 57% |
| Charlie Wilson | 10/10 | 6978 days | 58% |
| Ian Coldrake | 8/10 | 6978 days | 57% |
| Jill Bourke | 10/10 | 6983 days | 58% |
| Andy Chapman | 8/10 | 7013 days | 57% |
| Shelley | 10/10 | 7118 days | 58% |
| Will | 9/10 | 7127 days | 58% |
| Michael | 9/10 | 7129 days | 58% |
| Sue | 8/10 | 7129 days | 57% |
| Stefan | 8/10 | 7132 days | 57% |
| Jenny | 8/10 | 7135 days | 57% |
| Kate | 8/10 | 7137 days | 57% |
| Paul Yacoumis | 7/10 | 7139 days | 54% |
| Kathryn | 9/10 | 7144 days | 58% |
| Celia | 9/10 | 7146 days | 58% |
| Annelte | 4/10 | 7147 days | 36% |
| IdanNakash | 8/10 | 7147 days | 57% |
| Martin Christina | 9/10 | 7147 days | 58% |
| Chris | 8/10 | 7148 days | 57% |
| Janneke | 8/10 | 7148 days | 57% |
| Sue Robertson | 10/10 | 7150 days | 58% |
| Fenke | 7/10 | 7153 days | 54% |
| Bas | 7/10 | 7153 days | 54% |
| Daniel | 9/10 | 7155 days | 58% |
| Susan | 6/10 | 7161 days | 50% |
| ErikVanDam | 9/10 | 7167 days | 58% |
| MariaNorman | 9/10 | 7167 days | 58% |
| MarcHarris | 8/10 | 7167 days | 57% |
| Helena | 10/10 | 7167 days | 58% |
| Sarah | 10/10 | 7176 days | 58% |
| beesom | 8/10 | 7177 days | 57% |
| Peter | 5/10 | 7181 days | 43% |
| Sonja | 7/10 | 7188 days | 54% |
| Leah | 8/10 | 7189 days | 57% |
| Sarah | 10/10 | 7209 days | 58% |
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
-3.66% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 | -3.60% |
| 198 | -3.62% |
| 199 | -3.64% |
| 200 | -3.66% |
| 201 | -3.68% |
| 202 | -3.70% |
| 203 | -3.71% |
| … | … |
Balancing Adjustment
2.60% 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.