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

86.14%

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 10/10 644 days true 44.68 100%
Jessica Freeland 10/10 705 days true 34.92 78%
Nanna Overbeck 10/10 717 days true 33.17 74%
Joe Rogers 9/10 998 days true 7.79 16%
Nicola Wiggan 9/10 1067 days true 6.15 12%
Ben McDougal 10/10 1089 days true 6.01 12%
Maria Schober 5/10 1376 days true 5.54 11%
Helen Parsons 1/10 1384 days true 4.83 9%
Elisa Felising 7/10 1384 days true 5.52 11%
Claudia de Winter 9/10 1696 days true 5.01 10%
Penny Lee 9/10 1698 days true 5.01 10%
Jeroen Suijlang 8/10 1698 days true 5.01 10%
Ludvig Fagerstrom 8/10 1772 days true 4.89 10%
Marco Schmidt 10/10 2069 days true 4.4 8%
Christian Schumacher 10/10 2069 days true 4.4 8%
Jennifer Bramstad 8/10 2089 days true 4.37 8%
Evelina Johansson 8/10 2089 days true 4.37 8%
Sofia Anderson 10/10 2089 days true 4.37 8%
Steve 5/10 2090 days 3.64 7%
Janine Kohlgrueler 9/10 2097 days true 4.35 8%
Fraser Goldsmith 9/10 2114 days true 4.32 8%
Nigel Leighton 10/10 2168 days true 4.24 8%
Jonathan Vondette 7/10 2171 days true 4.23 8%
Andreas and Christine and Nora Busch 10/10 2179 days true 4.22 8%
lavonc 3/10 2210 days 3.16 6%
peterpiper 10/10 2394 days 3.22 6%
sandytemp22 10/10 2424 days 3.18 6%
Laura vanGool 10/10 2440 days true 3.79 7%
Barbara Berkhout 7/10 2440 days true 3.79 7%
Jurgen Joyce 8/10 2447 days true 3.78 7%
Carole Carter 9/10 2447 days true 3.78 7%
Sabrina Germany 9/10 2450 days true 3.77 7%
J Jmal 10/10 2451 days true 3.77 7%
Malena 10/10 2455 days 3.14 6%
Erik 10/10 2457 days true 3.76 7%
Marion Hassink 8/10 2461 days true 3.75 7%
Baas 8/10 2464 days true 3.75 7%
Barbara 10/10 2465 days true 3.75 7%
Rebecca Richardson 8/10 2466 days true 3.75 7%
Andrew Powell 7/10 2466 days true 3.75 7%
Andy Bridgman 8/10 2469 days true 3.74 7%
Aoife Lillis 7/10 2472 days true 3.74 7%
Rainer Schnell 8/10 2476 days true 3.73 7%
Filsack 8/10 2476 days true 3.73 7%
Hazel 10/10 2477 days true 3.73 7%
Frank Waskikowski 9/10 2478 days true 3.73 7%
Andreas Kristiansen 9/10 2478 days true 3.73 7%
Robert MacLeod-Smith 8/10 2480 days true 3.72 7%
Chris Marsh 6/10 2481 days true 3.72 7%
Jessica Lane 7/10 2481 days true 3.72 7%
Francis Corrigan 7/10 2485 days true 3.72 7%
Laura Smith 9/10 2497 days true 3.7 7%
Dean 8/10 2530 days true 3.64 7%
Berry 10/10 2557 days true 3.6 7%
Steve 9/10 2560 days true 3.59 7%
MaggieYChaChi 9/10 2637 days 2.89 5%
GenH 9/10 2760 days 2.72 5%
Allison Meyoz 9/10 2766 days true 3.25 6%
G Tulloch 9/10 2784 days true 3.22 6%
Stephen Hunt 9/10 2786 days true 3.22 6%
Thomas Klebensberger 10/10 2786 days true 3.22 6%
Therea 10/10 2789 days true 3.22 6%
Sean Brownell 7/10 2790 days true 3.21 6%
Laura Thrower 10/10 2795 days true 3.21 6%
David Taylor 9/10 2795 days true 3.21 6%
Stefan Schmitz 8/10 2803 days true 3.19 6%
Marii Joekalda 8/10 2804 days true 3.19 6%
Frank & Ruth 6/10 2805 days true 3.19 6%
Nathalie 10/10 2805 days true 3.19 6%
Jo Meekley 7/10 2805 days true 3.19 6%
Margit and Corein Groenevelt 8/10 2807 days true 3.19 6%
Judith 9/10 2807 days true 3.19 6%
Ven 8/10 2807 days true 3.19 6%
Florian 8/10 2811 days true 3.18 6%
Helen 9/10 2811 days true 3.18 6%
Juliane Kleiu 10/10 2811 days true 3.18 6%
Paula Dove 10/10 2811 days true 3.18 6%
Erin 8/10 2812 days true 3.18 6%
Walter Buschta 8/10 2812 days true 3.18 6%
Wouter Moui 6/10 2813 days true 3.18 6%
K Dahmer 8/10 2814 days true 3.17 6%
Jonathan Cree 9/10 2814 days true 3.17 6%
Laura Leigh 10/10 2814 days true 3.17 6%
Ann-Kathrin Auditor 10/10 2815 days true 3.17 6%
Katherine Forward 8/10 2815 days true 3.17 6%
Chris Ashton 10/10 2815 days true 3.17 6%
Jerry & Floon 7/10 2819 days true 3.17 6%
Hadar Zevulun 9/10 2820 days true 3.16 6%
Grumbach 9/10 2824 days true 3.16 6%
Caroline Sheridan 9/10 2825 days true 3.16 6%
Chris Darlington 10/10 2829 days true 3.15 6%
Cheryl 10/10 2839 days true 3.13 6%
Mark Aarts 9/10 2840 days true 3.13 6%
Samuel Prechel 8/10 2841 days true 3.13 6%
Dave and Lin Mungham 10/10 2842 days true 3.13 6%
Gordon Daniels 8/10 2844 days true 3.12 6%
Dr Dorthe Bossow 3/10 2845 days true 2.89 5%
Helen Gilbertson 8/10 2848 days true 3.12 5%
Doris Neuber 9/10 2848 days true 3.12 5%
Ashleigh Buckley 8/10 2849 days true 3.12 5%
PerspirationJournal 10/10 2941 days 2.47 4%
alku83 10/10 2941 days 2.47 4%
Mary Van 8/10 3002 days 2.39 4%
chloe1111 10/10 3125 days 2.22 3%
jenniferuk 9/10 3125 days true 2.66 4%
Peter and Hilda 10/10 3155 days true 2.61 4%
Einar 9/10 3174 days true 2.58 4%
Inbar Yizhar Barnea 8/10 3174 days true 2.58 4%
Tanya 9/10 3179 days true 2.57 4%
Jana Steve 10/10 3180 days true 2.57 4%
Yasmin Abrahams 7/10 3188 days true 2.56 4%
Barbara & Sven 10/10 3188 days true 2.56 4%
Judith 8/10 3192 days true 2.55 4%
Henrik Hougs 8/10 3194 days true 2.55 4%
Chris Glasg 9/10 3194 days true 2.55 4%
Michael 10/10 3196 days true 2.55 4%
Gary Ebrig 10/10 3199 days true 2.54 4%
Mathias 9/10 3201 days true 2.54 4%
Jamie 9/10 3206 days true 2.53 4%
David Hobson 8/10 3206 days true 2.53 4%
Christian 10/10 3206 days true 2.53 4%
vanijzendoor 8/10 3209 days true 2.52 4%
Dick Rosman 8/10 3210 days true 2.52 4%
Frances Hay 8/10 3213 days true 2.52 4%
Chance McGuire 10/10 3214 days 2.1 3%
Kevin and Teresa 8/10 3214 days true 2.52 4%
Ben Miklozek 9/10 3214 days true 2.52 4%
Marianne Lovdal 9/10 3214 days true 2.52 4%
Jessica 5/10 3219 days true 2.51 4%
S Luis Van Oler 6/10 3219 days true 2.51 4%
sophiep 8/10 3260 days true 2.44 4%
katharinatum 9/10 3260 days true 2.44 4%
koellner 6/10 3274 days true 2.42 4%
chrish1 9/10 3276 days true 2.41 4%
Fred Findlay 7/10 3288 days true 2.4 4%
maleta 9/10 3297 days true 2.38 4%
Gemma Morris 10/10 3299 days true 2.38 4%
TomL 10/10 3306 days 1.97 3%
Pauline Wan 7/10 3306 days 1.97 3%
eowyn2k 7/10 3306 days 1.97 3%
Suzanne 9/10 3337 days 1.93 3%
terryd 9/10 3398 days true 2.21 3%
kindel 6/10 3402 days true 2.21 3%
Emear Donnelly 10/10 3441 days true 2.14 3%
zoed 7/10 3475 days true 2.09 3%
steph_m 9/10 3490 days 1.72 2%
Charles Lyne 10/10 3490 days 1.72 2%
BenM1 7/10 3499 days true 2.05 3%
KimC 8/10 3508 days true 2.03 3%
JonK 8/10 3508 days true 2.03 3%
TschaneK 10/10 3510 days true 2.03 3%
RogerW 10/10 3512 days true 2.03 3%
NicolaW 10/10 3512 days true 2.03 3%
Lisa Duin 8/10 3518 days true 2.02 3%
Joanna Harrnon 9/10 3519 days true 2.02 3%
David 8/10 3520 days 1.68 2%
johnst 10/10 3520 days true 2.01 3%
Adi 10/10 3520 days true 2.01 3%
Sally477 9/10 3521 days 1.68 2%
Becca1 9/10 3522 days true 2.01 3%
Jelle 8/10 3523 days true 2.01 3%
Denys 8/10 3524 days true 2.01 3%
Ronny 9/10 3524 days true 2.01 3%
Viktoria Stoffel 10/10 3527 days true 2.0 3%
Jon Li 9/10 3532 days true 1.99 3%
Han Disveld 9/10 3532 days true 1.99 3%
BevanLisa 10/10 3537 days true 1.99 3%
SabineGermany 10/10 3538 days true 1.98 3%
StefanGermany1 9/10 3538 days true 1.98 3%
AnjaC 7/10 3538 days true 1.98 3%
AnjaChrist 7/10 3538 days true 1.98 3%
Torsten 9/10 3539 days true 1.98 3%
MarcoJ 8/10 3540 days true 1.98 3%
James O'Neil 10/10 3540 days true 1.98 3%
Barry Smith 10/10 3540 days true 1.98 3%
Siemens 8/10 3540 days true 1.98 3%
AlexH 10/10 3541 days true 1.98 3%
AnnickH 6/10 3542 days true 1.98 3%
Rene 8/10 3543 days true 1.98 3%
Dorothee 8/10 3543 days true 1.98 3%
Rob 7/10 3543 days true 1.98 3%
Mike 6/10 3544 days true 1.97 3%
TammyH 9/10 3546 days true 1.97 3%
Lynn White 7/10 3546 days 1.64 2%
Mette 8/10 3550 days true 1.96 3%
Axel 5/10 3550 days true 1.96 3%
amyd 8/10 3551 days 1.64 2%
Susan 9/10 3552 days true 1.96 3%
lannie 5/10 3553 days true 1.96 3%
XaviG 9/10 3554 days true 1.96 3%
ChenM 8/10 3554 days true 1.96 3%
Steven 9/10 3554 days true 1.96 3%
CarleyJ 8/10 3554 days true 1.96 3%
JesusB 7/10 3554 days true 1.96 3%
GingerPrince 9/10 3554 days true 1.96 3%
Steve 10/10 3554 days true 1.96 3%
Claudia 9/10 3556 days true 1.95 3%
Pascal 8/10 3556 days true 1.95 3%
Karen 9/10 3559 days true 1.95 3%
RandiL 7/10 3562 days true 1.94 3%
IreneF 9/10 3563 days true 1.94 3%
Rachel 8/10 3569 days true 1.93 3%
Adi 10/10 3569 days true 1.93 3%
Claire 8/10 3569 days true 1.93 3%
Philippa 9/10 3570 days true 1.93 3%
Conway 9/10 3570 days true 1.93 3%
orianne 10/10 3577 days 1.6 2%
Caroline 7/10 3577 days true 1.92 3%
Eike 9/10 3584 days true 1.91 3%
Benni 7/10 3586 days true 1.91 3%
John 6/10 3589 days true 1.9 3%
Dan 9/10 3593 days true 1.89 3%
Sally 9/10 3593 days true 1.89 3%
Rosa 4/10 3593 days true 1.78 2%
Sascha 7/10 3594 days true 1.89 3%
Dassel 8/10 3594 days true 1.89 3%
Eric 3/10 3595 days true 1.75 2%
Charlie 9/10 3600 days true 1.88 3%
tommfuller 7/10 3604 days 1.56 2%
Anouk 9/10 3632 days true 1.83 3%
MissTraveller2009 10/10 3641 days 1.51 2%
David 9/10 3645 days true 1.81 3%
Laura 9/10 3645 days true 1.81 3%
Adam 8/10 3650 days true 1.8 2%
mike brett 7/10 3654 days 1.49 2%
georgepearse 9/10 3691 days 1.44 2%
Aoife 8/10 3694 days true 1.73 2%
Davina 8/10 3695 days true 1.73 2%
Kath 10/10 3697 days true 1.72 2%
Kate 8/10 3706 days true 1.71 2%
Brenda 8/10 3706 days true 1.71 2%
Amy 8/10 3715 days true 1.69 2%
Katie 10/10 3715 days true 1.69 2%
Christoffer 10/10 3717 days true 1.69 2%
Rebecca 9/10 3717 days true 1.69 2%
Suyin 10/10 3717 days true 1.69 2%
Sarah 6/10 3726 days true 1.68 2%
Michaela 9/10 3730 days true 1.67 2%
Christopher 6/10 3730 days true 1.67 2%
James 8/10 3730 days true 1.67 2%
Sam Prior 8/10 3735 days true 1.66 2%
jillian 8/10 3739 days true 1.65 2%
George Burgas 9/10 3744 days true 1.65 2%
stain weedman 6/10 3750 days 1.36 2%
Sharon Curly 9/10 3752 days true 1.63 2%
Peddy 7/10 3756 days 1.35 1%
Tim 5/10 3772 days true 1.6 2%
Thomas Fillary 9/10 3788 days 1.31 1%
Sjoerd 8/10 3794 days true 1.56 2%
Gemma Harling 9/10 3794 days true 1.56 2%
Charlie Bond 9/10 3801 days true 1.55 2%
Florencia Cortese 10/10 3862 days true 1.45 2%
Meike Biel 7/10 3870 days true 1.44 2%
Helen 9/10 3870 days true 1.44 2%
Ellie 9/10 3882 days 1.18 1%
Daniel 7/10 3900 days true 1.39 2%
Omer Harron 9/10 3900 days true 1.39 2%
Yayami Kimura 10/10 3903 days true 1.38 2%
Kieran Concarr 9/10 3903 days true 1.38 2%
Christian 8/10 3907 days true 1.38 2%
Kathrin 9/10 3911 days true 1.37 2%
Andreas Brett 8/10 3913 days true 1.37 2%
Kristine Clemmensen Rotne 7/10 3913 days true 1.37 2%
helga 6/10 3913 days 1.14 1%
Emily Houston 10/10 3917 days true 1.36 1%
Hannah Holmes 8/10 3920 days true 1.36 1%
Lisa Tame 9/10 3921 days true 1.35 1%
Kelly 9/10 3924 days true 1.35 1%
Stephanie 10/10 3932 days true 1.34 1%
Sayaka 7/10 3932 days true 1.34 1%
Marc Hertogs 8/10 3936 days true 1.33 1%
Tanya Berthoud 9/10 3938 days true 1.33 1%
Van Hoof 8/10 3960 days true 1.29 1%
Berger 8/10 3967 days true 1.28 1%
Travis Brennan 9/10 3980 days 1.05 1%
Alexis 10/10 3994 days true 1.23 1%
Martine Arsac 5/10 4002 days true 1.22 1%
Frida 8/10 4004 days true 1.22 1%
Ben 10/10 4005 days true 1.22 1%
Wendy Williams 8/10 4012 days true 1.2 1%
Charlie Wilson 10/10 4087 days true 1.08 1%
Ian Coldrake 8/10 4087 days true 1.08 1%
Jill Bourke 10/10 4092 days true 1.07 1%
Andy Chapman 8/10 4122 days true 1.02 1%
Shelley 10/10 4227 days true 0.85 0%
Will 9/10 4236 days true 0.84 0%
Michael 9/10 4238 days true 0.83 0%
Sue 8/10 4238 days true 0.83 0%
Stefan 8/10 4241 days true 0.83 0%
Jenny 8/10 4244 days true 0.82 0%
Kate 8/10 4246 days true 0.82 0%
Paul Yacoumis 7/10 4248 days true 0.82 0%
Kathryn 9/10 4253 days true 0.81 0%
Celia 9/10 4255 days true 0.81 0%
Annelte 4/10 4256 days true 0.76 0%
IdanNakash 8/10 4256 days true 0.8 0%
Martin Christina 9/10 4256 days true 0.8 0%
Chris 8/10 4257 days true 0.8 0%
Janneke 8/10 4257 days true 0.8 0%
Sue Robertson 10/10 4259 days true 0.8 0%
Fenke 7/10 4262 days true 0.79 0%
Bas 7/10 4262 days true 0.79 0%
Daniel 9/10 4264 days true 0.79 0%
Susan 6/10 4270 days true 0.78 0%
ErikVanDam 9/10 4276 days true 0.77 0%
MariaNorman 9/10 4276 days true 0.77 0%
MarcHarris 8/10 4276 days true 0.77 0%
Helena 10/10 4276 days true 0.77 0%
Sarah 10/10 4285 days true 0.76 0%
beesom 8/10 4286 days true 0.75 0%
Peter 5/10 4290 days true 0.75 0%
Sonja 7/10 4297 days true 0.74 0%
Leah 8/10 4298 days true 0.73 0%
Sarah 10/10 4318 days true 0.7 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.