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 | 2773 days | 100% |
| Jessica Freeland | 10/10 | 2834 days | 96% |
| Nanna Overbeck | 10/10 | 2846 days | 95% |
| Joe Rogers | 9/10 | 3127 days | 77% |
| Nicola Wiggan | 9/10 | 3196 days | 73% |
| Ben McDougal | 10/10 | 3218 days | 72% |
| Maria Schober | 5/10 | 3505 days | 41% |
| Helen Parsons | 1/10 | 3513 days | 21% |
| Elisa Felising | 7/10 | 3513 days | 50% |
| Claudia de Winter | 9/10 | 3825 days | 33% |
| Penny Lee | 9/10 | 3827 days | 33% |
| Jeroen Suijlang | 8/10 | 3827 days | 33% |
| Ludvig Fagerstrom | 8/10 | 3901 days | 28% |
| Marco Schmidt | 10/10 | 4198 days | 10% |
| Christian Schumacher | 10/10 | 4198 days | 10% |
| Jennifer Bramstad | 8/10 | 4218 days | 9% |
| Evelina Johansson | 8/10 | 4218 days | 9% |
| Sofia Anderson | 10/10 | 4218 days | 9% |
| Steve | 5/10 | 4219 days | 6% |
| Janine Kohlgrueler | 9/10 | 4226 days | 8% |
| Fraser Goldsmith | 9/10 | 4243 days | 7% |
| Nigel Leighton | 10/10 | 4297 days | 4% |
| Jonathan Vondette | 7/10 | 4300 days | 3% |
| Andreas and Christine and Nora Busch | 10/10 | 4308 days | 3% |
| lavonc | 3/10 | 4339 days | 0% |
| peterpiper | 10/10 | 4523 days | 31% |
| sandytemp22 | 10/10 | 4553 days | 31% |
| Laura vanGool | 10/10 | 4569 days | 31% |
| Barbara Berkhout | 7/10 | 4569 days | 29% |
| Jurgen Joyce | 8/10 | 4576 days | 30% |
| Carole Carter | 9/10 | 4576 days | 31% |
| Sabrina Germany | 9/10 | 4579 days | 31% |
| J Jmal | 10/10 | 4580 days | 31% |
| Malena | 10/10 | 4584 days | 31% |
| Erik | 10/10 | 4586 days | 31% |
| Marion Hassink | 8/10 | 4590 days | 30% |
| Baas | 8/10 | 4593 days | 30% |
| Barbara | 10/10 | 4594 days | 31% |
| Rebecca Richardson | 8/10 | 4595 days | 30% |
| Andrew Powell | 7/10 | 4595 days | 29% |
| Andy Bridgman | 8/10 | 4598 days | 30% |
| Aoife Lillis | 7/10 | 4601 days | 29% |
| Rainer Schnell | 8/10 | 4605 days | 30% |
| Filsack | 8/10 | 4605 days | 30% |
| Hazel | 10/10 | 4606 days | 31% |
| Frank Waskikowski | 9/10 | 4607 days | 31% |
| Andreas Kristiansen | 9/10 | 4607 days | 31% |
| Robert MacLeod-Smith | 8/10 | 4609 days | 30% |
| Chris Marsh | 6/10 | 4610 days | 26% |
| Jessica Lane | 7/10 | 4610 days | 29% |
| Francis Corrigan | 7/10 | 4614 days | 29% |
| Laura Smith | 9/10 | 4626 days | 31% |
| Dean | 8/10 | 4659 days | 30% |
| Berry | 10/10 | 4686 days | 31% |
| Steve | 9/10 | 4689 days | 31% |
| MaggieYChaChi | 9/10 | 4766 days | 31% |
| GenH | 9/10 | 4889 days | 31% |
| Allison Meyoz | 9/10 | 4895 days | 31% |
| G Tulloch | 9/10 | 4913 days | 31% |
| Stephen Hunt | 9/10 | 4915 days | 31% |
| Thomas Klebensberger | 10/10 | 4915 days | 31% |
| Therea | 10/10 | 4918 days | 31% |
| Sean Brownell | 7/10 | 4919 days | 29% |
| Laura Thrower | 10/10 | 4924 days | 31% |
| David Taylor | 9/10 | 4924 days | 31% |
| Stefan Schmitz | 8/10 | 4932 days | 30% |
| Marii Joekalda | 8/10 | 4933 days | 30% |
| Frank & Ruth | 6/10 | 4934 days | 26% |
| Nathalie | 10/10 | 4934 days | 31% |
| Jo Meekley | 7/10 | 4934 days | 29% |
| Margit and Corein Groenevelt | 8/10 | 4936 days | 30% |
| Judith | 9/10 | 4936 days | 31% |
| Ven | 8/10 | 4936 days | 30% |
| Florian | 8/10 | 4940 days | 30% |
| Helen | 9/10 | 4940 days | 31% |
| Juliane Kleiu | 10/10 | 4940 days | 31% |
| Paula Dove | 10/10 | 4940 days | 31% |
| Erin | 8/10 | 4941 days | 30% |
| Walter Buschta | 8/10 | 4941 days | 30% |
| Wouter Moui | 6/10 | 4942 days | 26% |
| K Dahmer | 8/10 | 4943 days | 30% |
| Jonathan Cree | 9/10 | 4943 days | 31% |
| Laura Leigh | 10/10 | 4943 days | 31% |
| Ann-Kathrin Auditor | 10/10 | 4944 days | 31% |
| Katherine Forward | 8/10 | 4944 days | 30% |
| Chris Ashton | 10/10 | 4944 days | 31% |
| Jerry & Floon | 7/10 | 4948 days | 29% |
| Hadar Zevulun | 9/10 | 4949 days | 31% |
| Grumbach | 9/10 | 4953 days | 31% |
| Caroline Sheridan | 9/10 | 4954 days | 31% |
| Chris Darlington | 10/10 | 4958 days | 31% |
| Cheryl | 10/10 | 4968 days | 31% |
| Mark Aarts | 9/10 | 4969 days | 31% |
| Samuel Prechel | 8/10 | 4970 days | 30% |
| Dave and Lin Mungham | 10/10 | 4971 days | 31% |
| Gordon Daniels | 8/10 | 4973 days | 30% |
| Dr Dorthe Bossow | 3/10 | 4974 days | 16% |
| Helen Gilbertson | 8/10 | 4977 days | 30% |
| Doris Neuber | 9/10 | 4977 days | 31% |
| Ashleigh Buckley | 8/10 | 4978 days | 30% |
| PerspirationJournal | 10/10 | 5070 days | 31% |
| alku83 | 10/10 | 5070 days | 31% |
| Mary Van | 8/10 | 5131 days | 30% |
| chloe1111 | 10/10 | 5254 days | 31% |
| jenniferuk | 9/10 | 5254 days | 31% |
| Peter and Hilda | 10/10 | 5284 days | 31% |
| Einar | 9/10 | 5303 days | 31% |
| Inbar Yizhar Barnea | 8/10 | 5303 days | 30% |
| Tanya | 9/10 | 5308 days | 31% |
| Jana Steve | 10/10 | 5309 days | 31% |
| Yasmin Abrahams | 7/10 | 5317 days | 29% |
| Barbara & Sven | 10/10 | 5317 days | 31% |
| Judith | 8/10 | 5321 days | 30% |
| Henrik Hougs | 8/10 | 5323 days | 30% |
| Chris Glasg | 9/10 | 5323 days | 31% |
| Michael | 10/10 | 5325 days | 31% |
| Gary Ebrig | 10/10 | 5328 days | 31% |
| Mathias | 9/10 | 5330 days | 31% |
| Jamie | 9/10 | 5335 days | 31% |
| David Hobson | 8/10 | 5335 days | 30% |
| Christian | 10/10 | 5335 days | 31% |
| vanijzendoor | 8/10 | 5338 days | 30% |
| Dick Rosman | 8/10 | 5339 days | 30% |
| Frances Hay | 8/10 | 5342 days | 30% |
| Chance McGuire | 10/10 | 5343 days | 31% |
| Kevin and Teresa | 8/10 | 5343 days | 30% |
| Ben Miklozek | 9/10 | 5343 days | 31% |
| Marianne Lovdal | 9/10 | 5343 days | 31% |
| Jessica | 5/10 | 5348 days | 23% |
| S Luis Van Oler | 6/10 | 5348 days | 26% |
| sophiep | 8/10 | 5389 days | 30% |
| katharinatum | 9/10 | 5389 days | 31% |
| koellner | 6/10 | 5403 days | 26% |
| chrish1 | 9/10 | 5405 days | 31% |
| Fred Findlay | 7/10 | 5417 days | 29% |
| maleta | 9/10 | 5426 days | 31% |
| Gemma Morris | 10/10 | 5428 days | 31% |
| TomL | 10/10 | 5435 days | 31% |
| Pauline Wan | 7/10 | 5435 days | 29% |
| eowyn2k | 7/10 | 5435 days | 29% |
| Suzanne | 9/10 | 5466 days | 31% |
| terryd | 9/10 | 5527 days | 31% |
| kindel | 6/10 | 5531 days | 26% |
| Emear Donnelly | 10/10 | 5570 days | 31% |
| zoed | 7/10 | 5604 days | 29% |
| steph_m | 9/10 | 5619 days | 31% |
| Charles Lyne | 10/10 | 5619 days | 31% |
| BenM1 | 7/10 | 5628 days | 29% |
| KimC | 8/10 | 5637 days | 30% |
| JonK | 8/10 | 5637 days | 30% |
| TschaneK | 10/10 | 5639 days | 31% |
| RogerW | 10/10 | 5641 days | 31% |
| NicolaW | 10/10 | 5641 days | 31% |
| Lisa Duin | 8/10 | 5647 days | 30% |
| Joanna Harrnon | 9/10 | 5648 days | 31% |
| David | 8/10 | 5649 days | 30% |
| johnst | 10/10 | 5649 days | 31% |
| Adi | 10/10 | 5649 days | 31% |
| Sally477 | 9/10 | 5650 days | 31% |
| Becca1 | 9/10 | 5651 days | 31% |
| Jelle | 8/10 | 5652 days | 30% |
| Denys | 8/10 | 5653 days | 30% |
| Ronny | 9/10 | 5653 days | 31% |
| Viktoria Stoffel | 10/10 | 5656 days | 31% |
| Jon Li | 9/10 | 5661 days | 31% |
| Han Disveld | 9/10 | 5661 days | 31% |
| BevanLisa | 10/10 | 5666 days | 31% |
| SabineGermany | 10/10 | 5667 days | 31% |
| StefanGermany1 | 9/10 | 5667 days | 31% |
| AnjaC | 7/10 | 5667 days | 29% |
| AnjaChrist | 7/10 | 5667 days | 29% |
| Torsten | 9/10 | 5668 days | 31% |
| MarcoJ | 8/10 | 5669 days | 30% |
| James O'Neil | 10/10 | 5669 days | 31% |
| Barry Smith | 10/10 | 5669 days | 31% |
| Siemens | 8/10 | 5669 days | 30% |
| AlexH | 10/10 | 5670 days | 31% |
| AnnickH | 6/10 | 5671 days | 26% |
| Rene | 8/10 | 5672 days | 30% |
| Dorothee | 8/10 | 5672 days | 30% |
| Rob | 7/10 | 5672 days | 29% |
| Mike | 6/10 | 5673 days | 26% |
| TammyH | 9/10 | 5675 days | 31% |
| Lynn White | 7/10 | 5675 days | 29% |
| Mette | 8/10 | 5679 days | 30% |
| Axel | 5/10 | 5679 days | 23% |
| amyd | 8/10 | 5680 days | 30% |
| Susan | 9/10 | 5681 days | 31% |
| lannie | 5/10 | 5682 days | 23% |
| XaviG | 9/10 | 5683 days | 31% |
| ChenM | 8/10 | 5683 days | 30% |
| Steven | 9/10 | 5683 days | 31% |
| CarleyJ | 8/10 | 5683 days | 30% |
| JesusB | 7/10 | 5683 days | 29% |
| GingerPrince | 9/10 | 5683 days | 31% |
| Steve | 10/10 | 5683 days | 31% |
| Claudia | 9/10 | 5685 days | 31% |
| Pascal | 8/10 | 5685 days | 30% |
| Karen | 9/10 | 5688 days | 31% |
| RandiL | 7/10 | 5691 days | 29% |
| IreneF | 9/10 | 5692 days | 31% |
| Rachel | 8/10 | 5698 days | 30% |
| Adi | 10/10 | 5698 days | 31% |
| Claire | 8/10 | 5698 days | 30% |
| Philippa | 9/10 | 5699 days | 31% |
| Conway | 9/10 | 5699 days | 31% |
| orianne | 10/10 | 5706 days | 31% |
| Caroline | 7/10 | 5706 days | 29% |
| Eike | 9/10 | 5713 days | 31% |
| Benni | 7/10 | 5715 days | 29% |
| John | 6/10 | 5718 days | 26% |
| Dan | 9/10 | 5722 days | 31% |
| Sally | 9/10 | 5722 days | 31% |
| Rosa | 4/10 | 5722 days | 20% |
| Sascha | 7/10 | 5723 days | 29% |
| Dassel | 8/10 | 5723 days | 30% |
| Eric | 3/10 | 5724 days | 16% |
| Charlie | 9/10 | 5729 days | 31% |
| tommfuller | 7/10 | 5733 days | 29% |
| Anouk | 9/10 | 5761 days | 31% |
| MissTraveller2009 | 10/10 | 5770 days | 31% |
| David | 9/10 | 5774 days | 31% |
| Laura | 9/10 | 5774 days | 31% |
| Adam | 8/10 | 5779 days | 30% |
| mike brett | 7/10 | 5783 days | 29% |
| georgepearse | 9/10 | 5820 days | 31% |
| Aoife | 8/10 | 5823 days | 30% |
| Davina | 8/10 | 5824 days | 30% |
| Kath | 10/10 | 5826 days | 31% |
| Kate | 8/10 | 5835 days | 30% |
| Brenda | 8/10 | 5835 days | 30% |
| Amy | 8/10 | 5844 days | 30% |
| Katie | 10/10 | 5844 days | 31% |
| Christoffer | 10/10 | 5846 days | 31% |
| Rebecca | 9/10 | 5846 days | 31% |
| Suyin | 10/10 | 5846 days | 31% |
| Sarah | 6/10 | 5855 days | 26% |
| Michaela | 9/10 | 5859 days | 31% |
| Christopher | 6/10 | 5859 days | 26% |
| James | 8/10 | 5859 days | 30% |
| Sam Prior | 8/10 | 5864 days | 30% |
| jillian | 8/10 | 5868 days | 30% |
| George Burgas | 9/10 | 5873 days | 31% |
| stain weedman | 6/10 | 5879 days | 26% |
| Sharon Curly | 9/10 | 5881 days | 31% |
| Peddy | 7/10 | 5885 days | 29% |
| Tim | 5/10 | 5901 days | 23% |
| Thomas Fillary | 9/10 | 5917 days | 31% |
| Sjoerd | 8/10 | 5923 days | 30% |
| Gemma Harling | 9/10 | 5923 days | 31% |
| Charlie Bond | 9/10 | 5930 days | 31% |
| Florencia Cortese | 10/10 | 5991 days | 31% |
| Meike Biel | 7/10 | 5999 days | 29% |
| Helen | 9/10 | 5999 days | 31% |
| Ellie | 9/10 | 6011 days | 31% |
| Daniel | 7/10 | 6029 days | 29% |
| Omer Harron | 9/10 | 6029 days | 31% |
| Yayami Kimura | 10/10 | 6032 days | 31% |
| Kieran Concarr | 9/10 | 6032 days | 31% |
| Christian | 8/10 | 6036 days | 30% |
| Kathrin | 9/10 | 6040 days | 31% |
| Andreas Brett | 8/10 | 6042 days | 30% |
| Kristine Clemmensen Rotne | 7/10 | 6042 days | 29% |
| helga | 6/10 | 6042 days | 26% |
| Emily Houston | 10/10 | 6046 days | 31% |
| Hannah Holmes | 8/10 | 6049 days | 30% |
| Lisa Tame | 9/10 | 6050 days | 31% |
| Kelly | 9/10 | 6053 days | 31% |
| Stephanie | 10/10 | 6061 days | 31% |
| Sayaka | 7/10 | 6061 days | 29% |
| Marc Hertogs | 8/10 | 6065 days | 30% |
| Tanya Berthoud | 9/10 | 6067 days | 31% |
| Van Hoof | 8/10 | 6089 days | 30% |
| Berger | 8/10 | 6096 days | 30% |
| Travis Brennan | 9/10 | 6109 days | 31% |
| Alexis | 10/10 | 6123 days | 31% |
| Martine Arsac | 5/10 | 6131 days | 23% |
| Frida | 8/10 | 6133 days | 30% |
| Ben | 10/10 | 6134 days | 31% |
| Wendy Williams | 8/10 | 6141 days | 30% |
| Charlie Wilson | 10/10 | 6216 days | 31% |
| Ian Coldrake | 8/10 | 6216 days | 30% |
| Jill Bourke | 10/10 | 6221 days | 31% |
| Andy Chapman | 8/10 | 6251 days | 30% |
| Shelley | 10/10 | 6356 days | 31% |
| Will | 9/10 | 6365 days | 31% |
| Michael | 9/10 | 6367 days | 31% |
| Sue | 8/10 | 6367 days | 30% |
| Stefan | 8/10 | 6370 days | 30% |
| Jenny | 8/10 | 6373 days | 30% |
| Kate | 8/10 | 6375 days | 30% |
| Paul Yacoumis | 7/10 | 6377 days | 29% |
| Kathryn | 9/10 | 6382 days | 31% |
| Celia | 9/10 | 6384 days | 31% |
| Annelte | 4/10 | 6385 days | 20% |
| IdanNakash | 8/10 | 6385 days | 30% |
| Martin Christina | 9/10 | 6385 days | 31% |
| Chris | 8/10 | 6386 days | 30% |
| Janneke | 8/10 | 6386 days | 30% |
| Sue Robertson | 10/10 | 6388 days | 31% |
| Fenke | 7/10 | 6391 days | 29% |
| Bas | 7/10 | 6391 days | 29% |
| Daniel | 9/10 | 6393 days | 31% |
| Susan | 6/10 | 6399 days | 26% |
| ErikVanDam | 9/10 | 6405 days | 31% |
| MariaNorman | 9/10 | 6405 days | 31% |
| MarcHarris | 8/10 | 6405 days | 30% |
| Helena | 10/10 | 6405 days | 31% |
| Sarah | 10/10 | 6414 days | 31% |
| beesom | 8/10 | 6415 days | 30% |
| Peter | 5/10 | 6419 days | 23% |
| Sonja | 7/10 | 6426 days | 29% |
| Leah | 8/10 | 6427 days | 30% |
| Sarah | 10/10 | 6447 days | 31% |
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
-3.01% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 75 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 | -2.96% |
| 198 | -2.98% |
| 199 | -2.99% |
| 200 | -3.01% |
| 201 | -3.02% |
| 202 | -3.04% |
| 203 | -3.05% |
| … | … |
Balancing Adjustment
2.44% 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.