Ranking Score Explained

Hi there, 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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

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

87.93%

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 10/10 369 days 100%
Jessica Freeland 10/10 430 days 90%
Nanna Overbeck 10/10 442 days 88%
Joe Rogers 9/10 723 days 34%
Nicola Wiggan 9/10 792 days 24%
Ben McDougal 10/10 814 days 21%
Maria Schober 5/10 1101 days 5%
Helen Parsons 1/10 1109 days 4%
Elisa Felising 7/10 1109 days 5%
Claudia de Winter 9/10 1421 days 5%
Penny Lee 9/10 1423 days 5%
Jeroen Suijlang 8/10 1423 days 5%
Ludvig Fagerstrom 8/10 1497 days 5%
Marco Schmidt 10/10 1794 days 4%
Christian Schumacher 10/10 1794 days 4%
Jennifer Bramstad 8/10 1814 days 4%
Evelina Johansson 8/10 1814 days 4%
Sofia Anderson 10/10 1814 days 4%
Steve 5/10 1815 days 3%
Janine Kohlgrueler 9/10 1822 days 4%
Fraser Goldsmith 9/10 1839 days 4%
Nigel Leighton 10/10 1893 days 4%
Jonathan Vondette 7/10 1896 days 4%
Andreas and Christine and Nora Busch 10/10 1904 days 4%
lavonc 3/10 1935 days 3%
peterpiper 10/10 2119 days 3%
sandytemp22 10/10 2149 days 3%
Laura vanGool 10/10 2165 days 3%
Barbara Berkhout 7/10 2165 days 3%
Jurgen Joyce 8/10 2172 days 3%
Carole Carter 9/10 2172 days 3%
Sabrina Germany 9/10 2175 days 3%
J Jmal 10/10 2176 days 3%
Malena 10/10 2180 days 3%
Erik 10/10 2182 days 3%
Marion Hassink 8/10 2186 days 3%
Baas 8/10 2189 days 3%
Barbara 10/10 2190 days 3%
Rebecca Richardson 8/10 2191 days 3%
Andrew Powell 7/10 2191 days 3%
Andy Bridgman 8/10 2194 days 3%
Aoife Lillis 7/10 2197 days 3%
Rainer Schnell 8/10 2201 days 3%
Filsack 8/10 2201 days 3%
Hazel 10/10 2202 days 3%
Frank Waskikowski 9/10 2203 days 3%
Andreas Kristiansen 9/10 2203 days 3%
Robert MacLeod-Smith 8/10 2205 days 3%
Chris Marsh 6/10 2206 days 3%
Jessica Lane 7/10 2206 days 3%
Francis Corrigan 7/10 2210 days 3%
Laura Smith 9/10 2222 days 3%
Dean 8/10 2255 days 3%
Berry 10/10 2282 days 3%
Steve 9/10 2285 days 3%
MaggieYChaChi 9/10 2362 days 2%
GenH 9/10 2485 days 2%
Allison Meyoz 9/10 2491 days 3%
G Tulloch 9/10 2509 days 3%
Stephen Hunt 9/10 2511 days 3%
Thomas Klebensberger 10/10 2511 days 3%
Therea 10/10 2514 days 3%
Sean Brownell 7/10 2515 days 3%
Laura Thrower 10/10 2520 days 3%
David Taylor 9/10 2520 days 3%
Stefan Schmitz 8/10 2528 days 3%
Marii Joekalda 8/10 2529 days 3%
Frank & Ruth 6/10 2530 days 3%
Nathalie 10/10 2530 days 3%
Jo Meekley 7/10 2530 days 3%
Margit and Corein Groenevelt 8/10 2532 days 3%
Judith 9/10 2532 days 3%
Ven 8/10 2532 days 3%
Florian 8/10 2536 days 3%
Helen 9/10 2536 days 3%
Juliane Kleiu 10/10 2536 days 3%
Paula Dove 10/10 2536 days 3%
Erin 8/10 2537 days 3%
Walter Buschta 8/10 2537 days 3%
Wouter Moui 6/10 2538 days 3%
K Dahmer 8/10 2539 days 3%
Jonathan Cree 9/10 2539 days 3%
Laura Leigh 10/10 2539 days 3%
Ann-Kathrin Auditor 10/10 2540 days 3%
Katherine Forward 8/10 2540 days 3%
Chris Ashton 10/10 2540 days 3%
Jerry & Floon 7/10 2544 days 3%
Hadar Zevulun 9/10 2545 days 3%
Grumbach 9/10 2549 days 3%
Caroline Sheridan 9/10 2550 days 3%
Chris Darlington 10/10 2554 days 3%
Cheryl 10/10 2564 days 3%
Mark Aarts 9/10 2565 days 3%
Samuel Prechel 8/10 2566 days 3%
Dave and Lin Mungham 10/10 2567 days 3%
Gordon Daniels 8/10 2569 days 3%
Dr Dorthe Bossow 3/10 2570 days 2%
Helen Gilbertson 8/10 2573 days 3%
Doris Neuber 9/10 2573 days 3%
Ashleigh Buckley 8/10 2574 days 3%
PerspirationJournal 10/10 2666 days 2%
alku83 10/10 2666 days 2%
Mary Van 8/10 2727 days 2%
chloe1111 10/10 2850 days 2%
jenniferuk 9/10 2850 days 2%
Peter and Hilda 10/10 2880 days 2%
Einar 9/10 2899 days 2%
Inbar Yizhar Barnea 8/10 2899 days 2%
Tanya 9/10 2904 days 2%
Jana Steve 10/10 2905 days 2%
Yasmin Abrahams 7/10 2913 days 2%
Barbara & Sven 10/10 2913 days 2%
Judith 8/10 2917 days 2%
Henrik Hougs 8/10 2919 days 2%
Chris Glasg 9/10 2919 days 2%
Michael 10/10 2921 days 2%
Gary Ebrig 10/10 2924 days 2%
Mathias 9/10 2926 days 2%
Jamie 9/10 2931 days 2%
David Hobson 8/10 2931 days 2%
Christian 10/10 2931 days 2%
vanijzendoor 8/10 2934 days 2%
Dick Rosman 8/10 2935 days 2%
Frances Hay 8/10 2938 days 2%
Chance McGuire 10/10 2939 days 1%
Kevin and Teresa 8/10 2939 days 2%
Ben Miklozek 9/10 2939 days 2%
Marianne Lovdal 9/10 2939 days 2%
Jessica 5/10 2944 days 2%
S Luis Van Oler 6/10 2944 days 2%
sophiep 8/10 2985 days 2%
katharinatum 9/10 2985 days 2%
koellner 6/10 2999 days 2%
chrish1 9/10 3001 days 2%
Fred Findlay 7/10 3013 days 2%
maleta 9/10 3022 days 2%
Gemma Morris 10/10 3024 days 2%
TomL 10/10 3031 days 1%
Pauline Wan 7/10 3031 days 1%
eowyn2k 7/10 3031 days 1%
Suzanne 9/10 3062 days 1%
terryd 9/10 3123 days 2%
kindel 6/10 3127 days 2%
Emear Donnelly 10/10 3166 days 2%
zoed 7/10 3200 days 1%
steph_m 9/10 3215 days 1%
Charles Lyne 10/10 3215 days 1%
BenM1 7/10 3224 days 1%
KimC 8/10 3233 days 1%
JonK 8/10 3233 days 1%
TschaneK 10/10 3235 days 1%
RogerW 10/10 3237 days 1%
NicolaW 10/10 3237 days 1%
Lisa Duin 8/10 3243 days 1%
Joanna Harrnon 9/10 3244 days 1%
David 8/10 3245 days 1%
johnst 10/10 3245 days 1%
Adi 10/10 3245 days 1%
Sally477 9/10 3246 days 1%
Becca1 9/10 3247 days 1%
Jelle 8/10 3248 days 1%
Denys 8/10 3249 days 1%
Ronny 9/10 3249 days 1%
Viktoria Stoffel 10/10 3252 days 1%
Jon Li 9/10 3257 days 1%
Han Disveld 9/10 3257 days 1%
BevanLisa 10/10 3262 days 1%
SabineGermany 10/10 3263 days 1%
StefanGermany1 9/10 3263 days 1%
AnjaC 7/10 3263 days 1%
AnjaChrist 7/10 3263 days 1%
Torsten 9/10 3264 days 1%
MarcoJ 8/10 3265 days 1%
James O'Neil 10/10 3265 days 1%
Barry Smith 10/10 3265 days 1%
Siemens 8/10 3265 days 1%
AlexH 10/10 3266 days 1%
AnnickH 6/10 3267 days 1%
Rene 8/10 3268 days 1%
Dorothee 8/10 3268 days 1%
Rob 7/10 3268 days 1%
Mike 6/10 3269 days 1%
TammyH 9/10 3271 days 1%
Lynn White 7/10 3271 days 1%
Mette 8/10 3275 days 1%
Axel 5/10 3275 days 1%
amyd 8/10 3276 days 1%
Susan 9/10 3277 days 1%
lannie 5/10 3278 days 1%
XaviG 9/10 3279 days 1%
ChenM 8/10 3279 days 1%
Steven 9/10 3279 days 1%
CarleyJ 8/10 3279 days 1%
JesusB 7/10 3279 days 1%
GingerPrince 9/10 3279 days 1%
Steve 10/10 3279 days 1%
Claudia 9/10 3281 days 1%
Pascal 8/10 3281 days 1%
Karen 9/10 3284 days 1%
RandiL 7/10 3287 days 1%
IreneF 9/10 3288 days 1%
Rachel 8/10 3294 days 1%
Adi 10/10 3294 days 1%
Claire 8/10 3294 days 1%
Philippa 9/10 3295 days 1%
Conway 9/10 3295 days 1%
orianne 10/10 3302 days 1%
Caroline 7/10 3302 days 1%
Eike 9/10 3309 days 1%
Benni 7/10 3311 days 1%
John 6/10 3314 days 1%
Dan 9/10 3318 days 1%
Sally 9/10 3318 days 1%
Rosa 4/10 3318 days 1%
Sascha 7/10 3319 days 1%
Dassel 8/10 3319 days 1%
Eric 3/10 3320 days 1%
Charlie 9/10 3325 days 1%
tommfuller 7/10 3329 days 1%
Anouk 9/10 3357 days 1%
MissTraveller2009 10/10 3366 days 1%
David 9/10 3370 days 1%
Laura 9/10 3370 days 1%
Adam 8/10 3375 days 1%
mike brett 7/10 3379 days 1%
georgepearse 9/10 3416 days 1%
Aoife 8/10 3419 days 1%
Davina 8/10 3420 days 1%
Kath 10/10 3422 days 1%
Kate 8/10 3431 days 1%
Brenda 8/10 3431 days 1%
Amy 8/10 3440 days 1%
Katie 10/10 3440 days 1%
Christoffer 10/10 3442 days 1%
Rebecca 9/10 3442 days 1%
Suyin 10/10 3442 days 1%
Sarah 6/10 3451 days 1%
Michaela 9/10 3455 days 1%
Christopher 6/10 3455 days 1%
James 8/10 3455 days 1%
Sam Prior 8/10 3460 days 1%
jillian 8/10 3464 days 1%
George Burgas 9/10 3469 days 1%
stain weedman 6/10 3475 days 1%
Sharon Curly 9/10 3477 days 1%
Peddy 7/10 3481 days 1%
Tim 5/10 3497 days 1%
Thomas Fillary 9/10 3513 days 1%
Sjoerd 8/10 3519 days 1%
Gemma Harling 9/10 3519 days 1%
Charlie Bond 9/10 3526 days 1%
Florencia Cortese 10/10 3587 days 1%
Meike Biel 7/10 3595 days 1%
Helen 9/10 3595 days 1%
Ellie 9/10 3607 days 0%
Daniel 7/10 3625 days 1%
Omer Harron 9/10 3625 days 1%
Yayami Kimura 10/10 3628 days 1%
Kieran Concarr 9/10 3628 days 1%
Christian 8/10 3632 days 1%
Kathrin 9/10 3636 days 1%
Andreas Brett 8/10 3638 days 1%
Kristine Clemmensen Rotne 7/10 3638 days 1%
helga 6/10 3638 days 0%
Emily Houston 10/10 3642 days 1%
Hannah Holmes 8/10 3645 days 1%
Lisa Tame 9/10 3646 days 1%
Kelly 9/10 3649 days 1%
Stephanie 10/10 3657 days 1%
Sayaka 7/10 3657 days 1%
Marc Hertogs 8/10 3661 days 1%
Tanya Berthoud 9/10 3663 days 1%
Van Hoof 8/10 3685 days 1%
Berger 8/10 3692 days 1%
Travis Brennan 9/10 3704 days 0%
Alexis 10/10 3719 days 1%
Martine Arsac 5/10 3727 days 1%
Frida 8/10 3729 days 1%
Ben 10/10 3730 days 1%
Wendy Williams 8/10 3737 days 1%
Charlie Wilson 10/10 3812 days 0%
Ian Coldrake 8/10 3812 days 0%
Jill Bourke 10/10 3817 days 0%
Andy Chapman 8/10 3847 days 0%
Shelley 10/10 3952 days 0%
Will 9/10 3961 days 0%
Michael 9/10 3963 days 0%
Sue 8/10 3963 days 0%
Stefan 8/10 3966 days 0%
Jenny 8/10 3969 days 0%
Kate 8/10 3971 days 0%
Paul Yacoumis 7/10 3973 days 0%
Kathryn 9/10 3978 days 0%
Celia 9/10 3980 days 0%
Annelte 4/10 3981 days 0%
IdanNakash 8/10 3981 days 0%
Martin Christina 9/10 3981 days 0%
Chris 8/10 3982 days 0%
Janneke 8/10 3982 days 0%
Sue Robertson 10/10 3984 days 0%
Fenke 7/10 3987 days 0%
Bas 7/10 3987 days 0%
Daniel 9/10 3989 days 0%
Susan 6/10 3995 days 0%
ErikVanDam 9/10 4001 days 0%
MariaNorman 9/10 4001 days 0%
MarcHarris 8/10 4001 days 0%
Helena 10/10 4001 days 0%
Sarah 10/10 4010 days 0%
beesom 8/10 4011 days 0%
Peter 5/10 4015 days 0%
Sonja 7/10 4022 days 0%
Leah 8/10 4023 days 0%
Sarah 10/10 4043 days 0%

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

-4.78% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 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 364 days.

The Franz Josef Glacier Guides experience has been adjusted for 239 days. Adjustments are according to the following table.

Days Adjustment
236 -4.72%
237 -4.74%
238 -4.76%
239 -4.78%
240 -4.80%
241 -4.82%
242 -4.84%

Final Ranking Score

83%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.