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

86.78%

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 Face-to-Face Weight Relative Weight
Fran and Ben 10/10 553 days true 61.86 100%
Jessica Freeland 10/10 614 days true 49.99 81%
Nanna Overbeck 10/10 626 days true 47.83 77%
Joe Rogers 9/10 907 days true 12.72 19%
Nicola Wiggan 9/10 976 days true 8.69 13%
Ben McDougal 10/10 998 days true 7.79 11%
Maria Schober 5/10 1285 days true 5.69 8%
Helen Parsons 1/10 1293 days true 4.97 7%
Elisa Felising 7/10 1293 days true 5.67 8%
Claudia de Winter 9/10 1605 days true 5.16 7%
Penny Lee 9/10 1607 days true 5.16 7%
Jeroen Suijlang 8/10 1607 days true 5.16 7%
Ludvig Fagerstrom 8/10 1681 days true 5.04 7%
Marco Schmidt 10/10 1978 days true 4.55 6%
Christian Schumacher 10/10 1978 days true 4.55 6%
Jennifer Bramstad 8/10 1998 days true 4.52 6%
Evelina Johansson 8/10 1998 days true 4.52 6%
Sofia Anderson 10/10 1998 days true 4.52 6%
Steve 5/10 1999 days 3.76 5%
Janine Kohlgrueler 9/10 2006 days true 4.5 6%
Fraser Goldsmith 9/10 2023 days true 4.47 6%
Nigel Leighton 10/10 2077 days true 4.39 6%
Jonathan Vondette 7/10 2080 days true 4.38 6%
Andreas and Christine and Nora Busch 10/10 2088 days true 4.37 6%
lavonc 3/10 2119 days 3.27 4%
peterpiper 10/10 2303 days 3.35 4%
sandytemp22 10/10 2333 days 3.3 4%
Laura vanGool 10/10 2349 days true 3.94 5%
Barbara Berkhout 7/10 2349 days true 3.94 5%
Jurgen Joyce 8/10 2356 days true 3.93 5%
Carole Carter 9/10 2356 days true 3.93 5%
Sabrina Germany 9/10 2359 days true 3.92 5%
J Jmal 10/10 2360 days true 3.92 5%
Malena 10/10 2364 days 3.26 4%
Erik 10/10 2366 days true 3.91 5%
Marion Hassink 8/10 2370 days true 3.9 5%
Baas 8/10 2373 days true 3.9 5%
Barbara 10/10 2374 days true 3.9 5%
Rebecca Richardson 8/10 2375 days true 3.9 5%
Andrew Powell 7/10 2375 days true 3.9 5%
Andy Bridgman 8/10 2378 days true 3.89 5%
Aoife Lillis 7/10 2381 days true 3.89 5%
Rainer Schnell 8/10 2385 days true 3.88 5%
Filsack 8/10 2385 days true 3.88 5%
Hazel 10/10 2386 days true 3.88 5%
Frank Waskikowski 9/10 2387 days true 3.88 5%
Andreas Kristiansen 9/10 2387 days true 3.88 5%
Robert MacLeod-Smith 8/10 2389 days true 3.87 5%
Chris Marsh 6/10 2390 days true 3.87 5%
Jessica Lane 7/10 2390 days true 3.87 5%
Francis Corrigan 7/10 2394 days true 3.86 5%
Laura Smith 9/10 2406 days true 3.84 5%
Dean 8/10 2439 days true 3.79 5%
Berry 10/10 2466 days true 3.75 5%
Steve 9/10 2469 days true 3.74 5%
MaggieYChaChi 9/10 2546 days 3.01 4%
GenH 9/10 2669 days 2.84 3%
Allison Meyoz 9/10 2675 days true 3.4 4%
G Tulloch 9/10 2693 days true 3.37 4%
Stephen Hunt 9/10 2695 days true 3.37 4%
Thomas Klebensberger 10/10 2695 days true 3.37 4%
Therea 10/10 2698 days true 3.36 4%
Sean Brownell 7/10 2699 days true 3.36 4%
Laura Thrower 10/10 2704 days true 3.36 4%
David Taylor 9/10 2704 days true 3.36 4%
Stefan Schmitz 8/10 2712 days true 3.34 4%
Marii Joekalda 8/10 2713 days true 3.34 4%
Frank & Ruth 6/10 2714 days true 3.34 4%
Nathalie 10/10 2714 days true 3.34 4%
Jo Meekley 7/10 2714 days true 3.34 4%
Margit and Corein Groenevelt 8/10 2716 days true 3.34 4%
Judith 9/10 2716 days true 3.34 4%
Ven 8/10 2716 days true 3.34 4%
Florian 8/10 2720 days true 3.33 4%
Helen 9/10 2720 days true 3.33 4%
Juliane Kleiu 10/10 2720 days true 3.33 4%
Paula Dove 10/10 2720 days true 3.33 4%
Erin 8/10 2721 days true 3.33 4%
Walter Buschta 8/10 2721 days true 3.33 4%
Wouter Moui 6/10 2722 days true 3.33 4%
K Dahmer 8/10 2723 days true 3.32 4%
Jonathan Cree 9/10 2723 days true 3.32 4%
Laura Leigh 10/10 2723 days true 3.32 4%
Ann-Kathrin Auditor 10/10 2724 days true 3.32 4%
Katherine Forward 8/10 2724 days true 3.32 4%
Chris Ashton 10/10 2724 days true 3.32 4%
Jerry & Floon 7/10 2728 days true 3.32 4%
Hadar Zevulun 9/10 2729 days true 3.31 4%
Grumbach 9/10 2733 days true 3.31 4%
Caroline Sheridan 9/10 2734 days true 3.31 4%
Chris Darlington 10/10 2738 days true 3.3 4%
Cheryl 10/10 2748 days true 3.28 4%
Mark Aarts 9/10 2749 days true 3.28 4%
Samuel Prechel 8/10 2750 days true 3.28 4%
Dave and Lin Mungham 10/10 2751 days true 3.28 4%
Gordon Daniels 8/10 2753 days true 3.27 4%
Dr Dorthe Bossow 3/10 2754 days true 3.03 4%
Helen Gilbertson 8/10 2757 days true 3.27 4%
Doris Neuber 9/10 2757 days true 3.27 4%
Ashleigh Buckley 8/10 2758 days true 3.27 4%
PerspirationJournal 10/10 2850 days 2.6 3%
alku83 10/10 2850 days 2.6 3%
Mary Van 8/10 2911 days 2.51 3%
chloe1111 10/10 3034 days 2.34 2%
jenniferuk 9/10 3034 days true 2.81 3%
Peter and Hilda 10/10 3064 days true 2.76 3%
Einar 9/10 3083 days true 2.73 3%
Inbar Yizhar Barnea 8/10 3083 days true 2.73 3%
Tanya 9/10 3088 days true 2.72 3%
Jana Steve 10/10 3089 days true 2.72 3%
Yasmin Abrahams 7/10 3097 days true 2.71 3%
Barbara & Sven 10/10 3097 days true 2.71 3%
Judith 8/10 3101 days true 2.7 3%
Henrik Hougs 8/10 3103 days true 2.7 3%
Chris Glasg 9/10 3103 days true 2.7 3%
Michael 10/10 3105 days true 2.7 3%
Gary Ebrig 10/10 3108 days true 2.69 3%
Mathias 9/10 3110 days true 2.69 3%
Jamie 9/10 3115 days true 2.68 3%
David Hobson 8/10 3115 days true 2.68 3%
Christian 10/10 3115 days true 2.68 3%
vanijzendoor 8/10 3118 days true 2.67 3%
Dick Rosman 8/10 3119 days true 2.67 3%
Frances Hay 8/10 3122 days true 2.67 3%
Chance McGuire 10/10 3123 days 2.22 2%
Kevin and Teresa 8/10 3123 days true 2.67 3%
Ben Miklozek 9/10 3123 days true 2.67 3%
Marianne Lovdal 9/10 3123 days true 2.67 3%
Jessica 5/10 3128 days true 2.66 3%
S Luis Van Oler 6/10 3128 days true 2.66 3%
sophiep 8/10 3169 days true 2.59 3%
katharinatum 9/10 3169 days true 2.59 3%
koellner 6/10 3183 days true 2.57 3%
chrish1 9/10 3185 days true 2.56 3%
Fred Findlay 7/10 3197 days true 2.54 3%
maleta 9/10 3206 days true 2.53 3%
Gemma Morris 10/10 3208 days true 2.53 3%
TomL 10/10 3215 days 2.1 2%
Pauline Wan 7/10 3215 days 2.1 2%
eowyn2k 7/10 3215 days 2.1 2%
Suzanne 9/10 3246 days 2.05 2%
terryd 9/10 3307 days true 2.36 2%
kindel 6/10 3311 days true 2.36 2%
Emear Donnelly 10/10 3350 days true 2.29 2%
zoed 7/10 3384 days true 2.24 2%
steph_m 9/10 3399 days 1.84 2%
Charles Lyne 10/10 3399 days 1.84 2%
BenM1 7/10 3408 days true 2.2 2%
KimC 8/10 3417 days true 2.18 2%
JonK 8/10 3417 days true 2.18 2%
TschaneK 10/10 3419 days true 2.18 2%
RogerW 10/10 3421 days true 2.18 2%
NicolaW 10/10 3421 days true 2.18 2%
Lisa Duin 8/10 3427 days true 2.17 2%
Joanna Harrnon 9/10 3428 days true 2.16 2%
David 8/10 3429 days 1.8 2%
johnst 10/10 3429 days true 2.16 2%
Adi 10/10 3429 days true 2.16 2%
Sally477 9/10 3430 days 1.8 2%
Becca1 9/10 3431 days true 2.16 2%
Jelle 8/10 3432 days true 2.16 2%
Denys 8/10 3433 days true 2.16 2%
Ronny 9/10 3433 days true 2.16 2%
Viktoria Stoffel 10/10 3436 days true 2.15 2%
Jon Li 9/10 3441 days true 2.14 2%
Han Disveld 9/10 3441 days true 2.14 2%
BevanLisa 10/10 3446 days true 2.14 2%
SabineGermany 10/10 3447 days true 2.13 2%
StefanGermany1 9/10 3447 days true 2.13 2%
AnjaC 7/10 3447 days true 2.13 2%
AnjaChrist 7/10 3447 days true 2.13 2%
Torsten 9/10 3448 days true 2.13 2%
MarcoJ 8/10 3449 days true 2.13 2%
James O'Neil 10/10 3449 days true 2.13 2%
Barry Smith 10/10 3449 days true 2.13 2%
Siemens 8/10 3449 days true 2.13 2%
AlexH 10/10 3450 days true 2.13 2%
AnnickH 6/10 3451 days true 2.13 2%
Rene 8/10 3452 days true 2.13 2%
Dorothee 8/10 3452 days true 2.13 2%
Rob 7/10 3452 days true 2.13 2%
Mike 6/10 3453 days true 2.12 2%
TammyH 9/10 3455 days true 2.12 2%
Lynn White 7/10 3455 days 1.77 2%
Mette 8/10 3459 days true 2.11 2%
Axel 5/10 3459 days true 2.11 2%
amyd 8/10 3460 days 1.76 1%
Susan 9/10 3461 days true 2.11 2%
lannie 5/10 3462 days true 2.11 2%
XaviG 9/10 3463 days true 2.11 2%
ChenM 8/10 3463 days true 2.11 2%
Steven 9/10 3463 days true 2.11 2%
CarleyJ 8/10 3463 days true 2.11 2%
JesusB 7/10 3463 days true 2.11 2%
GingerPrince 9/10 3463 days true 2.11 2%
Steve 10/10 3463 days true 2.11 2%
Claudia 9/10 3465 days true 2.1 2%
Pascal 8/10 3465 days true 2.1 2%
Karen 9/10 3468 days true 2.1 2%
RandiL 7/10 3471 days true 2.09 2%
IreneF 9/10 3472 days true 2.09 2%
Rachel 8/10 3478 days true 2.08 2%
Adi 10/10 3478 days true 2.08 2%
Claire 8/10 3478 days true 2.08 2%
Philippa 9/10 3479 days true 2.08 2%
Conway 9/10 3479 days true 2.08 2%
orianne 10/10 3486 days 1.72 1%
Caroline 7/10 3486 days true 2.07 2%
Eike 9/10 3493 days true 2.06 2%
Benni 7/10 3495 days true 2.05 2%
John 6/10 3498 days true 2.05 2%
Dan 9/10 3502 days true 2.04 2%
Sally 9/10 3502 days true 2.04 2%
Rosa 4/10 3502 days true 1.92 2%
Sascha 7/10 3503 days true 2.04 2%
Dassel 8/10 3503 days true 2.04 2%
Eric 3/10 3504 days true 1.89 2%
Charlie 9/10 3509 days true 2.03 2%
tommfuller 7/10 3513 days 1.69 1%
Anouk 9/10 3541 days true 1.98 2%
MissTraveller2009 10/10 3550 days 1.64 1%
David 9/10 3555 days true 1.96 2%
Laura 9/10 3555 days true 1.96 2%
Adam 8/10 3559 days true 1.95 2%
mike brett 7/10 3563 days 1.62 1%
georgepearse 9/10 3600 days 1.57 1%
Aoife 8/10 3603 days true 1.88 2%
Davina 8/10 3604 days true 1.88 2%
Kath 10/10 3606 days true 1.87 2%
Kate 8/10 3615 days true 1.86 2%
Brenda 8/10 3615 days true 1.86 2%
Amy 8/10 3624 days true 1.84 2%
Katie 10/10 3624 days true 1.84 2%
Christoffer 10/10 3627 days true 1.84 2%
Rebecca 9/10 3627 days true 1.84 2%
Suyin 10/10 3627 days true 1.84 2%
Sarah 6/10 3635 days true 1.82 2%
Michaela 9/10 3639 days true 1.82 2%
Christopher 6/10 3639 days true 1.82 2%
James 8/10 3639 days true 1.82 2%
Sam Prior 8/10 3644 days true 1.81 2%
jillian 8/10 3648 days true 1.8 2%
George Burgas 9/10 3653 days true 1.8 2%
stain weedman 6/10 3659 days 1.49 1%
Sharon Curly 9/10 3661 days true 1.78 2%
Peddy 7/10 3665 days 1.48 1%
Tim 5/10 3681 days true 1.75 1%
Thomas Fillary 9/10 3697 days 1.44 1%
Sjoerd 8/10 3703 days true 1.71 1%
Gemma Harling 9/10 3703 days true 1.71 1%
Charlie Bond 9/10 3710 days true 1.7 1%
Florencia Cortese 10/10 3771 days true 1.6 1%
Meike Biel 7/10 3779 days true 1.59 1%
Helen 9/10 3779 days true 1.59 1%
Ellie 9/10 3791 days 1.31 1%
Daniel 7/10 3809 days true 1.54 1%
Omer Harron 9/10 3809 days true 1.54 1%
Yayami Kimura 10/10 3812 days true 1.53 1%
Kieran Concarr 9/10 3812 days true 1.53 1%
Christian 8/10 3816 days true 1.53 1%
Kathrin 9/10 3820 days true 1.52 1%
Andreas Brett 8/10 3822 days true 1.52 1%
Kristine Clemmensen Rotne 7/10 3822 days true 1.52 1%
helga 6/10 3823 days 1.26 1%
Emily Houston 10/10 3826 days true 1.51 1%
Hannah Holmes 8/10 3829 days true 1.51 1%
Lisa Tame 9/10 3830 days true 1.5 1%
Kelly 9/10 3833 days true 1.5 1%
Stephanie 10/10 3841 days true 1.49 1%
Sayaka 7/10 3841 days true 1.49 1%
Marc Hertogs 8/10 3845 days true 1.48 1%
Tanya Berthoud 9/10 3847 days true 1.48 1%
Van Hoof 8/10 3869 days true 1.44 1%
Berger 8/10 3876 days true 1.43 1%
Travis Brennan 9/10 3889 days 1.17 1%
Alexis 10/10 3903 days true 1.38 1%
Martine Arsac 5/10 3911 days true 1.37 1%
Frida 8/10 3913 days true 1.37 1%
Ben 10/10 3914 days true 1.37 1%
Wendy Williams 8/10 3921 days true 1.35 1%
Charlie Wilson 10/10 3996 days true 1.23 1%
Ian Coldrake 8/10 3996 days true 1.23 1%
Jill Bourke 10/10 4001 days true 1.22 1%
Andy Chapman 8/10 4031 days true 1.17 1%
Shelley 10/10 4136 days true 1.0 0%
Will 9/10 4145 days true 0.99 0%
Michael 9/10 4147 days true 0.98 0%
Sue 8/10 4147 days true 0.98 0%
Stefan 8/10 4150 days true 0.98 0%
Jenny 8/10 4153 days true 0.97 0%
Kate 8/10 4155 days true 0.97 0%
Paul Yacoumis 7/10 4157 days true 0.97 0%
Kathryn 9/10 4162 days true 0.96 0%
Celia 9/10 4164 days true 0.96 0%
Annelte 4/10 4165 days true 0.9 0%
IdanNakash 8/10 4165 days true 0.95 0%
Martin Christina 9/10 4165 days true 0.95 0%
Chris 8/10 4166 days true 0.95 0%
Janneke 8/10 4166 days true 0.95 0%
Sue Robertson 10/10 4168 days true 0.95 0%
Fenke 7/10 4171 days true 0.94 0%
Bas 7/10 4171 days true 0.94 0%
Daniel 9/10 4173 days true 0.94 0%
Susan 6/10 4179 days true 0.93 0%
ErikVanDam 9/10 4185 days true 0.92 0%
MariaNorman 9/10 4185 days true 0.92 0%
MarcHarris 8/10 4185 days true 0.92 0%
Helena 10/10 4185 days true 0.92 0%
Sarah 10/10 4194 days true 0.91 0%
beesom 8/10 4195 days true 0.9 0%
Peter 5/10 4199 days true 0.9 0%
Sonja 7/10 4206 days true 0.89 0%
Leah 8/10 4207 days true 0.88 0%
Sarah 10/10 4227 days true 0.85 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

-7.28% 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 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

79%

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.