G'day, 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
85.08%
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 | 2816 days | 100% |
| Jessica Freeland | 10/10 | 2877 days | 96% |
| Nanna Overbeck | 10/10 | 2889 days | 95% |
| Joe Rogers | 9/10 | 3170 days | 76% |
| Nicola Wiggan | 9/10 | 3239 days | 72% |
| Ben McDougal | 10/10 | 3261 days | 71% |
| Maria Schober | 5/10 | 3548 days | 39% |
| Helen Parsons | 1/10 | 3556 days | 20% |
| Elisa Felising | 7/10 | 3556 days | 48% |
| Claudia de Winter | 9/10 | 3868 days | 31% |
| Penny Lee | 9/10 | 3870 days | 31% |
| Jeroen Suijlang | 8/10 | 3870 days | 31% |
| Ludvig Fagerstrom | 8/10 | 3944 days | 26% |
| Marco Schmidt | 10/10 | 4241 days | 7% |
| Christian Schumacher | 10/10 | 4241 days | 7% |
| Jennifer Bramstad | 8/10 | 4261 days | 6% |
| Evelina Johansson | 8/10 | 4261 days | 6% |
| Sofia Anderson | 10/10 | 4261 days | 6% |
| Steve | 5/10 | 4262 days | 4% |
| Janine Kohlgrueler | 9/10 | 4269 days | 5% |
| Fraser Goldsmith | 9/10 | 4286 days | 4% |
| Nigel Leighton | 10/10 | 4340 days | 1% |
| Jonathan Vondette | 7/10 | 4343 days | 0% |
| Andreas and Christine and Nora Busch | 10/10 | 4351 days | 0% |
| lavonc | 3/10 | 4382 days | 16% |
| peterpiper | 10/10 | 4566 days | 31% |
| sandytemp22 | 10/10 | 4596 days | 31% |
| Laura vanGool | 10/10 | 4612 days | 31% |
| Barbara Berkhout | 7/10 | 4612 days | 29% |
| Jurgen Joyce | 8/10 | 4619 days | 31% |
| Carole Carter | 9/10 | 4619 days | 31% |
| Sabrina Germany | 9/10 | 4622 days | 31% |
| J Jmal | 10/10 | 4623 days | 31% |
| Malena | 10/10 | 4627 days | 31% |
| Erik | 10/10 | 4629 days | 31% |
| Marion Hassink | 8/10 | 4633 days | 31% |
| Baas | 8/10 | 4636 days | 31% |
| Barbara | 10/10 | 4637 days | 31% |
| Rebecca Richardson | 8/10 | 4638 days | 31% |
| Andrew Powell | 7/10 | 4638 days | 29% |
| Andy Bridgman | 8/10 | 4641 days | 31% |
| Aoife Lillis | 7/10 | 4644 days | 29% |
| Rainer Schnell | 8/10 | 4648 days | 31% |
| Filsack | 8/10 | 4648 days | 31% |
| Hazel | 10/10 | 4649 days | 31% |
| Frank Waskikowski | 9/10 | 4650 days | 31% |
| Andreas Kristiansen | 9/10 | 4650 days | 31% |
| Robert MacLeod-Smith | 8/10 | 4652 days | 31% |
| Chris Marsh | 6/10 | 4653 days | 27% |
| Jessica Lane | 7/10 | 4653 days | 29% |
| Francis Corrigan | 7/10 | 4657 days | 29% |
| Laura Smith | 9/10 | 4669 days | 31% |
| Dean | 8/10 | 4702 days | 31% |
| Berry | 10/10 | 4729 days | 31% |
| Steve | 9/10 | 4732 days | 31% |
| MaggieYChaChi | 9/10 | 4809 days | 31% |
| GenH | 9/10 | 4932 days | 31% |
| Allison Meyoz | 9/10 | 4938 days | 31% |
| G Tulloch | 9/10 | 4956 days | 31% |
| Stephen Hunt | 9/10 | 4958 days | 31% |
| Thomas Klebensberger | 10/10 | 4958 days | 31% |
| Therea | 10/10 | 4961 days | 31% |
| Sean Brownell | 7/10 | 4962 days | 29% |
| Laura Thrower | 10/10 | 4967 days | 31% |
| David Taylor | 9/10 | 4967 days | 31% |
| Stefan Schmitz | 8/10 | 4975 days | 31% |
| Marii Joekalda | 8/10 | 4976 days | 31% |
| Frank & Ruth | 6/10 | 4977 days | 27% |
| Nathalie | 10/10 | 4977 days | 31% |
| Jo Meekley | 7/10 | 4977 days | 29% |
| Margit and Corein Groenevelt | 8/10 | 4979 days | 31% |
| Judith | 9/10 | 4979 days | 31% |
| Ven | 8/10 | 4979 days | 31% |
| Florian | 8/10 | 4983 days | 31% |
| Helen | 9/10 | 4983 days | 31% |
| Juliane Kleiu | 10/10 | 4983 days | 31% |
| Paula Dove | 10/10 | 4983 days | 31% |
| Erin | 8/10 | 4984 days | 31% |
| Walter Buschta | 8/10 | 4984 days | 31% |
| Wouter Moui | 6/10 | 4985 days | 27% |
| K Dahmer | 8/10 | 4986 days | 31% |
| Jonathan Cree | 9/10 | 4986 days | 31% |
| Laura Leigh | 10/10 | 4986 days | 31% |
| Ann-Kathrin Auditor | 10/10 | 4987 days | 31% |
| Katherine Forward | 8/10 | 4987 days | 31% |
| Chris Ashton | 10/10 | 4987 days | 31% |
| Jerry & Floon | 7/10 | 4991 days | 29% |
| Hadar Zevulun | 9/10 | 4992 days | 31% |
| Grumbach | 9/10 | 4996 days | 31% |
| Caroline Sheridan | 9/10 | 4997 days | 31% |
| Chris Darlington | 10/10 | 5001 days | 31% |
| Cheryl | 10/10 | 5011 days | 31% |
| Mark Aarts | 9/10 | 5012 days | 31% |
| Samuel Prechel | 8/10 | 5013 days | 31% |
| Dave and Lin Mungham | 10/10 | 5014 days | 31% |
| Gordon Daniels | 8/10 | 5016 days | 31% |
| Dr Dorthe Bossow | 3/10 | 5017 days | 16% |
| Helen Gilbertson | 8/10 | 5020 days | 31% |
| Doris Neuber | 9/10 | 5020 days | 31% |
| Ashleigh Buckley | 8/10 | 5021 days | 31% |
| PerspirationJournal | 10/10 | 5113 days | 31% |
| alku83 | 10/10 | 5113 days | 31% |
| Mary Van | 8/10 | 5174 days | 31% |
| chloe1111 | 10/10 | 5297 days | 31% |
| jenniferuk | 9/10 | 5297 days | 31% |
| Peter and Hilda | 10/10 | 5327 days | 31% |
| Einar | 9/10 | 5346 days | 31% |
| Inbar Yizhar Barnea | 8/10 | 5346 days | 31% |
| Tanya | 9/10 | 5351 days | 31% |
| Jana Steve | 10/10 | 5352 days | 31% |
| Yasmin Abrahams | 7/10 | 5360 days | 29% |
| Barbara & Sven | 10/10 | 5360 days | 31% |
| Judith | 8/10 | 5364 days | 31% |
| Henrik Hougs | 8/10 | 5366 days | 31% |
| Chris Glasg | 9/10 | 5366 days | 31% |
| Michael | 10/10 | 5368 days | 31% |
| Gary Ebrig | 10/10 | 5371 days | 31% |
| Mathias | 9/10 | 5373 days | 31% |
| Jamie | 9/10 | 5378 days | 31% |
| David Hobson | 8/10 | 5378 days | 31% |
| Christian | 10/10 | 5378 days | 31% |
| vanijzendoor | 8/10 | 5381 days | 31% |
| Dick Rosman | 8/10 | 5382 days | 31% |
| Frances Hay | 8/10 | 5385 days | 31% |
| Chance McGuire | 10/10 | 5386 days | 31% |
| Kevin and Teresa | 8/10 | 5386 days | 31% |
| Ben Miklozek | 9/10 | 5386 days | 31% |
| Marianne Lovdal | 9/10 | 5386 days | 31% |
| Jessica | 5/10 | 5391 days | 23% |
| S Luis Van Oler | 6/10 | 5391 days | 27% |
| sophiep | 8/10 | 5432 days | 31% |
| katharinatum | 9/10 | 5432 days | 31% |
| koellner | 6/10 | 5446 days | 27% |
| chrish1 | 9/10 | 5448 days | 31% |
| Fred Findlay | 7/10 | 5460 days | 29% |
| maleta | 9/10 | 5469 days | 31% |
| Gemma Morris | 10/10 | 5471 days | 31% |
| TomL | 10/10 | 5478 days | 31% |
| Pauline Wan | 7/10 | 5478 days | 29% |
| eowyn2k | 7/10 | 5478 days | 29% |
| Suzanne | 9/10 | 5509 days | 31% |
| terryd | 9/10 | 5570 days | 31% |
| kindel | 6/10 | 5574 days | 27% |
| Emear Donnelly | 10/10 | 5613 days | 31% |
| zoed | 7/10 | 5647 days | 29% |
| steph_m | 9/10 | 5662 days | 31% |
| Charles Lyne | 10/10 | 5662 days | 31% |
| BenM1 | 7/10 | 5671 days | 29% |
| KimC | 8/10 | 5680 days | 31% |
| JonK | 8/10 | 5680 days | 31% |
| TschaneK | 10/10 | 5682 days | 31% |
| RogerW | 10/10 | 5684 days | 31% |
| NicolaW | 10/10 | 5684 days | 31% |
| Lisa Duin | 8/10 | 5690 days | 31% |
| Joanna Harrnon | 9/10 | 5691 days | 31% |
| David | 8/10 | 5692 days | 31% |
| johnst | 10/10 | 5692 days | 31% |
| Adi | 10/10 | 5693 days | 31% |
| Sally477 | 9/10 | 5693 days | 31% |
| Becca1 | 9/10 | 5694 days | 31% |
| Jelle | 8/10 | 5695 days | 31% |
| Denys | 8/10 | 5697 days | 31% |
| Ronny | 9/10 | 5697 days | 31% |
| Viktoria Stoffel | 10/10 | 5699 days | 31% |
| Jon Li | 9/10 | 5704 days | 31% |
| Han Disveld | 9/10 | 5704 days | 31% |
| BevanLisa | 10/10 | 5709 days | 31% |
| SabineGermany | 10/10 | 5710 days | 31% |
| StefanGermany1 | 9/10 | 5710 days | 31% |
| AnjaC | 7/10 | 5710 days | 29% |
| AnjaChrist | 7/10 | 5710 days | 29% |
| Torsten | 9/10 | 5712 days | 31% |
| MarcoJ | 8/10 | 5712 days | 31% |
| James O'Neil | 10/10 | 5712 days | 31% |
| Barry Smith | 10/10 | 5712 days | 31% |
| Siemens | 8/10 | 5712 days | 31% |
| AlexH | 10/10 | 5713 days | 31% |
| AnnickH | 6/10 | 5714 days | 27% |
| Rene | 8/10 | 5716 days | 31% |
| Dorothee | 8/10 | 5716 days | 31% |
| Rob | 7/10 | 5716 days | 29% |
| Mike | 6/10 | 5717 days | 27% |
| TammyH | 9/10 | 5718 days | 31% |
| Lynn White | 7/10 | 5719 days | 29% |
| Mette | 8/10 | 5723 days | 31% |
| Axel | 5/10 | 5723 days | 23% |
| amyd | 8/10 | 5723 days | 31% |
| Susan | 9/10 | 5725 days | 31% |
| lannie | 5/10 | 5726 days | 23% |
| XaviG | 9/10 | 5726 days | 31% |
| ChenM | 8/10 | 5726 days | 31% |
| Steven | 9/10 | 5726 days | 31% |
| CarleyJ | 8/10 | 5726 days | 31% |
| JesusB | 7/10 | 5726 days | 29% |
| GingerPrince | 9/10 | 5726 days | 31% |
| Steve | 10/10 | 5726 days | 31% |
| Claudia | 9/10 | 5729 days | 31% |
| Pascal | 8/10 | 5729 days | 31% |
| Karen | 9/10 | 5732 days | 31% |
| RandiL | 7/10 | 5734 days | 29% |
| IreneF | 9/10 | 5735 days | 31% |
| Rachel | 8/10 | 5742 days | 31% |
| Adi | 10/10 | 5742 days | 31% |
| Claire | 8/10 | 5742 days | 31% |
| Philippa | 9/10 | 5743 days | 31% |
| Conway | 9/10 | 5743 days | 31% |
| orianne | 10/10 | 5749 days | 31% |
| Caroline | 7/10 | 5750 days | 29% |
| Eike | 9/10 | 5757 days | 31% |
| Benni | 7/10 | 5759 days | 29% |
| John | 6/10 | 5762 days | 27% |
| Dan | 9/10 | 5766 days | 31% |
| Sally | 9/10 | 5766 days | 31% |
| Rosa | 4/10 | 5766 days | 20% |
| Sascha | 7/10 | 5767 days | 29% |
| Dassel | 8/10 | 5767 days | 31% |
| Eric | 3/10 | 5768 days | 16% |
| Charlie | 9/10 | 5773 days | 31% |
| tommfuller | 7/10 | 5777 days | 29% |
| Anouk | 9/10 | 5805 days | 31% |
| MissTraveller2009 | 10/10 | 5813 days | 31% |
| David | 9/10 | 5818 days | 31% |
| Laura | 9/10 | 5818 days | 31% |
| Adam | 8/10 | 5823 days | 31% |
| mike brett | 7/10 | 5826 days | 29% |
| georgepearse | 9/10 | 5864 days | 31% |
| Aoife | 8/10 | 5867 days | 31% |
| Davina | 8/10 | 5868 days | 31% |
| Kath | 10/10 | 5870 days | 31% |
| Kate | 8/10 | 5879 days | 31% |
| Brenda | 8/10 | 5879 days | 31% |
| Amy | 8/10 | 5888 days | 31% |
| Katie | 10/10 | 5888 days | 31% |
| Christoffer | 10/10 | 5890 days | 31% |
| Rebecca | 9/10 | 5890 days | 31% |
| Suyin | 10/10 | 5890 days | 31% |
| Sarah | 6/10 | 5899 days | 27% |
| Michaela | 9/10 | 5903 days | 31% |
| Christopher | 6/10 | 5903 days | 27% |
| James | 8/10 | 5903 days | 31% |
| Sam Prior | 8/10 | 5908 days | 31% |
| jillian | 8/10 | 5912 days | 31% |
| George Burgas | 9/10 | 5917 days | 31% |
| stain weedman | 6/10 | 5923 days | 27% |
| Sharon Curly | 9/10 | 5925 days | 31% |
| Peddy | 7/10 | 5929 days | 29% |
| Tim | 5/10 | 5945 days | 23% |
| Thomas Fillary | 9/10 | 5961 days | 31% |
| Sjoerd | 8/10 | 5967 days | 31% |
| Gemma Harling | 9/10 | 5967 days | 31% |
| Charlie Bond | 9/10 | 5974 days | 31% |
| Florencia Cortese | 10/10 | 6034 days | 31% |
| Meike Biel | 7/10 | 6042 days | 29% |
| Helen | 9/10 | 6042 days | 31% |
| Ellie | 9/10 | 6055 days | 31% |
| Daniel | 7/10 | 6072 days | 29% |
| Omer Harron | 9/10 | 6072 days | 31% |
| Yayami Kimura | 10/10 | 6075 days | 31% |
| Kieran Concarr | 9/10 | 6075 days | 31% |
| Christian | 8/10 | 6079 days | 31% |
| Kathrin | 9/10 | 6083 days | 31% |
| Andreas Brett | 8/10 | 6085 days | 31% |
| Kristine Clemmensen Rotne | 7/10 | 6085 days | 29% |
| helga | 6/10 | 6086 days | 27% |
| Emily Houston | 10/10 | 6089 days | 31% |
| Hannah Holmes | 8/10 | 6092 days | 31% |
| Lisa Tame | 9/10 | 6093 days | 31% |
| Kelly | 9/10 | 6096 days | 31% |
| Stephanie | 10/10 | 6104 days | 31% |
| Sayaka | 7/10 | 6104 days | 29% |
| Marc Hertogs | 8/10 | 6108 days | 31% |
| Tanya Berthoud | 9/10 | 6110 days | 31% |
| Van Hoof | 8/10 | 6132 days | 31% |
| Berger | 8/10 | 6139 days | 31% |
| Travis Brennan | 9/10 | 6152 days | 31% |
| Alexis | 10/10 | 6166 days | 31% |
| Martine Arsac | 5/10 | 6174 days | 23% |
| Frida | 8/10 | 6176 days | 31% |
| Ben | 10/10 | 6177 days | 31% |
| Wendy Williams | 8/10 | 6184 days | 31% |
| Charlie Wilson | 10/10 | 6259 days | 31% |
| Ian Coldrake | 8/10 | 6259 days | 31% |
| Jill Bourke | 10/10 | 6264 days | 31% |
| Andy Chapman | 8/10 | 6294 days | 31% |
| Shelley | 10/10 | 6399 days | 31% |
| Will | 9/10 | 6408 days | 31% |
| Michael | 9/10 | 6410 days | 31% |
| Sue | 8/10 | 6410 days | 31% |
| Stefan | 8/10 | 6413 days | 31% |
| Jenny | 8/10 | 6416 days | 31% |
| Kate | 8/10 | 6418 days | 31% |
| Paul Yacoumis | 7/10 | 6420 days | 29% |
| Kathryn | 9/10 | 6425 days | 31% |
| Celia | 9/10 | 6427 days | 31% |
| Annelte | 4/10 | 6428 days | 20% |
| IdanNakash | 8/10 | 6428 days | 31% |
| Martin Christina | 9/10 | 6428 days | 31% |
| Chris | 8/10 | 6429 days | 31% |
| Janneke | 8/10 | 6429 days | 31% |
| Sue Robertson | 10/10 | 6431 days | 31% |
| Fenke | 7/10 | 6434 days | 29% |
| Bas | 7/10 | 6434 days | 29% |
| Daniel | 9/10 | 6436 days | 31% |
| Susan | 6/10 | 6442 days | 27% |
| ErikVanDam | 9/10 | 6448 days | 31% |
| MariaNorman | 9/10 | 6448 days | 31% |
| MarcHarris | 8/10 | 6448 days | 31% |
| Helena | 10/10 | 6448 days | 31% |
| Sarah | 10/10 | 6457 days | 31% |
| beesom | 8/10 | 6458 days | 31% |
| Peter | 5/10 | 6462 days | 23% |
| Sonja | 7/10 | 6469 days | 29% |
| Leah | 8/10 | 6470 days | 31% |
| Sarah | 10/10 | 6490 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
-3.85% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 50 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 | -3.80% |
| 198 | -3.82% |
| 199 | -3.83% |
| 200 | -3.85% |
| 201 | -3.87% |
| 202 | -3.89% |
| 203 | -3.91% |
| … | … |
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.