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

87.42%

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 10/10 461 days true 79.59 100%
Jessica Freeland 10/10 522 days true 68.19 85%
Nanna Overbeck 10/10 534 days true 65.78 82%
Joe Rogers 9/10 815 days true 20.91 25%
Nicola Wiggan 9/10 884 days true 14.47 17%
Ben McDougal 10/10 906 days true 12.79 15%
Maria Schober 5/10 1193 days true 5.84 6%
Helen Parsons 1/10 1201 days true 5.1 5%
Elisa Felising 7/10 1201 days true 5.83 6%
Claudia de Winter 9/10 1513 days true 5.31 5%
Penny Lee 9/10 1515 days true 5.31 5%
Jeroen Suijlang 8/10 1515 days true 5.31 5%
Ludvig Fagerstrom 8/10 1589 days true 5.19 5%
Marco Schmidt 10/10 1886 days true 4.7 5%
Christian Schumacher 10/10 1886 days true 4.7 5%
Jennifer Bramstad 8/10 1906 days true 4.67 5%
Evelina Johansson 8/10 1906 days true 4.67 5%
Sofia Anderson 10/10 1906 days true 4.67 5%
Steve 5/10 1907 days 3.89 4%
Janine Kohlgrueler 9/10 1914 days true 4.65 5%
Fraser Goldsmith 9/10 1931 days true 4.63 5%
Nigel Leighton 10/10 1985 days true 4.54 4%
Jonathan Vondette 7/10 1988 days true 4.53 4%
Andreas and Christine and Nora Busch 10/10 1996 days true 4.52 4%
lavonc 3/10 2027 days 3.39 3%
peterpiper 10/10 2211 days 3.47 3%
sandytemp22 10/10 2241 days 3.43 3%
Laura vanGool 10/10 2257 days true 4.09 4%
Barbara Berkhout 7/10 2257 days true 4.09 4%
Jurgen Joyce 8/10 2264 days true 4.08 4%
Carole Carter 9/10 2264 days true 4.08 4%
Sabrina Germany 9/10 2267 days true 4.07 4%
J Jmal 10/10 2268 days true 4.07 4%
Malena 10/10 2272 days 3.39 3%
Erik 10/10 2274 days true 4.06 4%
Marion Hassink 8/10 2278 days true 4.06 4%
Baas 8/10 2281 days true 4.05 4%
Barbara 10/10 2282 days true 4.05 4%
Rebecca Richardson 8/10 2283 days true 4.05 4%
Andrew Powell 7/10 2283 days true 4.05 4%
Andy Bridgman 8/10 2286 days true 4.04 4%
Aoife Lillis 7/10 2289 days true 4.04 4%
Rainer Schnell 8/10 2293 days true 4.03 4%
Filsack 8/10 2293 days true 4.03 4%
Hazel 10/10 2294 days true 4.03 4%
Frank Waskikowski 9/10 2295 days true 4.03 4%
Andreas Kristiansen 9/10 2295 days true 4.03 4%
Robert MacLeod-Smith 8/10 2297 days true 4.02 4%
Chris Marsh 6/10 2298 days true 4.02 4%
Jessica Lane 7/10 2298 days true 4.02 4%
Francis Corrigan 7/10 2302 days true 4.02 4%
Laura Smith 9/10 2314 days true 4.0 4%
Dean 8/10 2347 days true 3.94 4%
Berry 10/10 2374 days true 3.9 4%
Steve 9/10 2377 days true 3.89 4%
MaggieYChaChi 9/10 2454 days 3.14 3%
GenH 9/10 2577 days 2.97 3%
Allison Meyoz 9/10 2583 days true 3.55 3%
G Tulloch 9/10 2601 days true 3.52 3%
Stephen Hunt 9/10 2603 days true 3.52 3%
Thomas Klebensberger 10/10 2603 days true 3.52 3%
Therea 10/10 2606 days true 3.52 3%
Sean Brownell 7/10 2607 days true 3.51 3%
Laura Thrower 10/10 2612 days true 3.51 3%
David Taylor 9/10 2612 days true 3.51 3%
Stefan Schmitz 8/10 2620 days true 3.49 3%
Marii Joekalda 8/10 2621 days true 3.49 3%
Frank & Ruth 6/10 2622 days true 3.49 3%
Nathalie 10/10 2622 days true 3.49 3%
Jo Meekley 7/10 2622 days true 3.49 3%
Margit and Corein Groenevelt 8/10 2624 days true 3.49 3%
Judith 9/10 2624 days true 3.49 3%
Ven 8/10 2624 days true 3.49 3%
Florian 8/10 2628 days true 3.48 3%
Helen 9/10 2628 days true 3.48 3%
Juliane Kleiu 10/10 2628 days true 3.48 3%
Paula Dove 10/10 2628 days true 3.48 3%
Erin 8/10 2629 days true 3.48 3%
Walter Buschta 8/10 2629 days true 3.48 3%
Wouter Moui 6/10 2630 days true 3.48 3%
K Dahmer 8/10 2631 days true 3.48 3%
Jonathan Cree 9/10 2631 days true 3.48 3%
Laura Leigh 10/10 2631 days true 3.48 3%
Ann-Kathrin Auditor 10/10 2632 days true 3.47 3%
Katherine Forward 8/10 2632 days true 3.47 3%
Chris Ashton 10/10 2632 days true 3.47 3%
Jerry & Floon 7/10 2636 days true 3.47 3%
Hadar Zevulun 9/10 2637 days true 3.47 3%
Grumbach 9/10 2641 days true 3.46 3%
Caroline Sheridan 9/10 2642 days true 3.46 3%
Chris Darlington 10/10 2646 days true 3.45 3%
Cheryl 10/10 2656 days true 3.43 3%
Mark Aarts 9/10 2657 days true 3.43 3%
Samuel Prechel 8/10 2658 days true 3.43 3%
Dave and Lin Mungham 10/10 2659 days true 3.43 3%
Gordon Daniels 8/10 2661 days true 3.43 3%
Dr Dorthe Bossow 3/10 2662 days true 3.17 3%
Helen Gilbertson 8/10 2665 days true 3.42 3%
Doris Neuber 9/10 2665 days true 3.42 3%
Ashleigh Buckley 8/10 2666 days true 3.42 3%
PerspirationJournal 10/10 2758 days 2.72 2%
alku83 10/10 2758 days 2.72 2%
Mary Van 8/10 2819 days 2.64 2%
chloe1111 10/10 2942 days 2.47 2%
jenniferuk 9/10 2942 days true 2.96 2%
Peter and Hilda 10/10 2972 days true 2.91 2%
Einar 9/10 2991 days true 2.88 2%
Inbar Yizhar Barnea 8/10 2991 days true 2.88 2%
Tanya 9/10 2996 days true 2.88 2%
Jana Steve 10/10 2997 days true 2.87 2%
Yasmin Abrahams 7/10 3005 days true 2.86 2%
Barbara & Sven 10/10 3005 days true 2.86 2%
Judith 8/10 3009 days true 2.85 2%
Henrik Hougs 8/10 3011 days true 2.85 2%
Chris Glasg 9/10 3011 days true 2.85 2%
Michael 10/10 3013 days true 2.85 2%
Gary Ebrig 10/10 3016 days true 2.84 2%
Mathias 9/10 3018 days true 2.84 2%
Jamie 9/10 3023 days true 2.83 2%
David Hobson 8/10 3023 days true 2.83 2%
Christian 10/10 3023 days true 2.83 2%
vanijzendoor 8/10 3026 days true 2.83 2%
Dick Rosman 8/10 3027 days true 2.82 2%
Frances Hay 8/10 3030 days true 2.82 2%
Chance McGuire 10/10 3031 days 2.35 2%
Kevin and Teresa 8/10 3031 days true 2.82 2%
Ben Miklozek 9/10 3031 days true 2.82 2%
Marianne Lovdal 9/10 3031 days true 2.82 2%
Jessica 5/10 3036 days true 2.81 2%
S Luis Van Oler 6/10 3036 days true 2.81 2%
sophiep 8/10 3077 days true 2.74 2%
katharinatum 9/10 3077 days true 2.74 2%
koellner 6/10 3091 days true 2.72 2%
chrish1 9/10 3093 days true 2.72 2%
Fred Findlay 7/10 3105 days true 2.7 2%
maleta 9/10 3114 days true 2.68 2%
Gemma Morris 10/10 3116 days true 2.68 2%
TomL 10/10 3123 days 2.22 2%
Pauline Wan 7/10 3123 days 2.22 2%
eowyn2k 7/10 3123 days 2.22 2%
Suzanne 9/10 3154 days 2.18 1%
terryd 9/10 3215 days true 2.52 2%
kindel 6/10 3219 days true 2.51 2%
Emear Donnelly 10/10 3258 days true 2.44 2%
zoed 7/10 3292 days true 2.39 2%
steph_m 9/10 3307 days 1.97 1%
Charles Lyne 10/10 3307 days 1.97 1%
BenM1 7/10 3316 days true 2.35 2%
KimC 8/10 3325 days true 2.33 2%
JonK 8/10 3325 days true 2.33 2%
TschaneK 10/10 3327 days true 2.33 2%
RogerW 10/10 3329 days true 2.33 2%
NicolaW 10/10 3329 days true 2.33 2%
Lisa Duin 8/10 3335 days true 2.32 2%
Joanna Harrnon 9/10 3336 days true 2.32 2%
David 8/10 3337 days 1.93 1%
johnst 10/10 3337 days true 2.31 2%
Adi 10/10 3338 days true 2.31 2%
Sally477 9/10 3338 days 1.93 1%
Becca1 9/10 3339 days true 2.31 2%
Jelle 8/10 3340 days true 2.31 2%
Denys 8/10 3341 days true 2.31 2%
Ronny 9/10 3341 days true 2.31 2%
Viktoria Stoffel 10/10 3344 days true 2.3 2%
Jon Li 9/10 3349 days true 2.29 2%
Han Disveld 9/10 3349 days true 2.29 2%
BevanLisa 10/10 3354 days true 2.29 2%
SabineGermany 10/10 3355 days true 2.28 2%
StefanGermany1 9/10 3355 days true 2.28 2%
AnjaC 7/10 3355 days true 2.28 2%
AnjaChrist 7/10 3355 days true 2.28 2%
Torsten 9/10 3357 days true 2.28 2%
MarcoJ 8/10 3357 days true 2.28 2%
James O'Neil 10/10 3357 days true 2.28 2%
Barry Smith 10/10 3357 days true 2.28 2%
Siemens 8/10 3357 days true 2.28 2%
AlexH 10/10 3358 days true 2.28 2%
AnnickH 6/10 3359 days true 2.28 2%
Rene 8/10 3361 days true 2.28 2%
Dorothee 8/10 3361 days true 2.28 2%
Rob 7/10 3361 days true 2.28 2%
Mike 6/10 3361 days true 2.28 2%
TammyH 9/10 3363 days true 2.27 2%
Lynn White 7/10 3364 days 1.89 1%
Mette 8/10 3368 days true 2.26 2%
Axel 5/10 3368 days true 2.26 2%
amyd 8/10 3368 days 1.89 1%
Susan 9/10 3370 days true 2.26 2%
lannie 5/10 3371 days true 2.26 2%
XaviG 9/10 3371 days true 2.26 2%
ChenM 8/10 3371 days true 2.26 2%
Steven 9/10 3371 days true 2.26 2%
CarleyJ 8/10 3371 days true 2.26 2%
JesusB 7/10 3371 days true 2.26 2%
GingerPrince 9/10 3371 days true 2.26 2%
Steve 10/10 3371 days true 2.26 2%
Claudia 9/10 3374 days true 2.25 2%
Pascal 8/10 3374 days true 2.25 2%
Karen 9/10 3376 days true 2.25 2%
RandiL 7/10 3379 days true 2.25 2%
IreneF 9/10 3380 days true 2.24 2%
Rachel 8/10 3387 days true 2.23 2%
Adi 10/10 3387 days true 2.23 2%
Claire 8/10 3387 days true 2.23 2%
Philippa 9/10 3388 days true 2.23 2%
Conway 9/10 3388 days true 2.23 2%
orianne 10/10 3394 days 1.85 1%
Caroline 7/10 3395 days true 2.22 2%
Eike 9/10 3402 days true 2.21 2%
Benni 7/10 3403 days true 2.21 2%
John 6/10 3407 days true 2.2 2%
Dan 9/10 3410 days true 2.19 2%
Sally 9/10 3410 days true 2.19 2%
Rosa 4/10 3411 days true 2.06 1%
Sascha 7/10 3411 days true 2.19 2%
Dassel 8/10 3411 days true 2.19 2%
Eric 3/10 3413 days true 2.03 1%
Charlie 9/10 3418 days true 2.18 1%
tommfuller 7/10 3421 days 1.81 1%
Anouk 9/10 3450 days true 2.13 1%
MissTraveller2009 10/10 3458 days 1.76 1%
David 9/10 3463 days true 2.11 1%
Laura 9/10 3463 days true 2.11 1%
Adam 8/10 3468 days true 2.1 1%
mike brett 7/10 3471 days 1.75 1%
georgepearse 9/10 3509 days 1.69 1%
Aoife 8/10 3512 days true 2.03 1%
Davina 8/10 3513 days true 2.03 1%
Kath 10/10 3515 days true 2.02 1%
Kate 8/10 3524 days true 2.01 1%
Brenda 8/10 3524 days true 2.01 1%
Amy 8/10 3533 days true 1.99 1%
Katie 10/10 3533 days true 1.99 1%
Christoffer 10/10 3535 days true 1.99 1%
Rebecca 9/10 3535 days true 1.99 1%
Suyin 10/10 3535 days true 1.99 1%
Sarah 6/10 3544 days true 1.97 1%
Michaela 9/10 3548 days true 1.97 1%
Christopher 6/10 3548 days true 1.97 1%
James 8/10 3548 days true 1.97 1%
Sam Prior 8/10 3553 days true 1.96 1%
jillian 8/10 3557 days true 1.95 1%
George Burgas 9/10 3562 days true 1.94 1%
stain weedman 6/10 3567 days 1.61 1%
Sharon Curly 9/10 3570 days true 1.93 1%
Peddy 7/10 3574 days 1.6 1%
Tim 5/10 3589 days true 1.9 1%
Thomas Fillary 9/10 3606 days 1.56 1%
Sjoerd 8/10 3612 days true 1.86 1%
Gemma Harling 9/10 3612 days true 1.86 1%
Charlie Bond 9/10 3619 days true 1.85 1%
Florencia Cortese 10/10 3679 days true 1.75 1%
Meike Biel 7/10 3687 days true 1.74 1%
Helen 9/10 3687 days true 1.74 1%
Ellie 9/10 3700 days 1.43 1%
Daniel 7/10 3717 days true 1.69 1%
Omer Harron 9/10 3717 days true 1.69 1%
Yayami Kimura 10/10 3720 days true 1.68 1%
Kieran Concarr 9/10 3720 days true 1.68 1%
Christian 8/10 3724 days true 1.68 1%
Kathrin 9/10 3728 days true 1.67 1%
Andreas Brett 8/10 3730 days true 1.67 1%
Kristine Clemmensen Rotne 7/10 3730 days true 1.67 1%
helga 6/10 3731 days 1.39 0%
Emily Houston 10/10 3734 days true 1.66 1%
Hannah Holmes 8/10 3737 days true 1.66 1%
Lisa Tame 9/10 3738 days true 1.66 1%
Kelly 9/10 3741 days true 1.65 1%
Stephanie 10/10 3749 days true 1.64 1%
Sayaka 7/10 3749 days true 1.64 1%
Marc Hertogs 8/10 3753 days true 1.63 1%
Tanya Berthoud 9/10 3755 days true 1.63 1%
Van Hoof 8/10 3777 days true 1.59 1%
Berger 8/10 3784 days true 1.58 1%
Travis Brennan 9/10 3797 days 1.3 0%
Alexis 10/10 3811 days true 1.54 1%
Martine Arsac 5/10 3819 days true 1.52 1%
Frida 8/10 3821 days true 1.52 1%
Ben 10/10 3822 days true 1.52 1%
Wendy Williams 8/10 3829 days true 1.51 1%
Charlie Wilson 10/10 3904 days true 1.38 0%
Ian Coldrake 8/10 3904 days true 1.38 0%
Jill Bourke 10/10 3909 days true 1.37 0%
Andy Chapman 8/10 3939 days true 1.32 0%
Shelley 10/10 4044 days true 1.15 0%
Will 9/10 4053 days true 1.14 0%
Michael 9/10 4055 days true 1.13 0%
Sue 8/10 4055 days true 1.13 0%
Stefan 8/10 4058 days true 1.13 0%
Jenny 8/10 4061 days true 1.12 0%
Kate 8/10 4063 days true 1.12 0%
Paul Yacoumis 7/10 4065 days true 1.12 0%
Kathryn 9/10 4070 days true 1.11 0%
Celia 9/10 4072 days true 1.11 0%
Annelte 4/10 4073 days true 1.04 0%
IdanNakash 8/10 4073 days true 1.1 0%
Martin Christina 9/10 4073 days true 1.1 0%
Chris 8/10 4074 days true 1.1 0%
Janneke 8/10 4074 days true 1.1 0%
Sue Robertson 10/10 4076 days true 1.1 0%
Fenke 7/10 4079 days true 1.09 0%
Bas 7/10 4079 days true 1.09 0%
Daniel 9/10 4081 days true 1.09 0%
Susan 6/10 4087 days true 1.08 0%
ErikVanDam 9/10 4093 days true 1.07 0%
MariaNorman 9/10 4093 days true 1.07 0%
MarcHarris 8/10 4093 days true 1.07 0%
Helena 10/10 4093 days true 1.07 0%
Sarah 10/10 4102 days true 1.06 0%
beesom 8/10 4103 days true 1.06 0%
Peter 5/10 4107 days true 1.05 0%
Sonja 7/10 4114 days true 1.04 0%
Leah 8/10 4115 days true 1.04 0%
Sarah 10/10 4135 days true 1.0 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

-6.64% 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 332 days. Adjustments are according to the following table.

Days Adjustment
329 -6.58%
330 -6.60%
331 -6.62%
332 -6.64%
333 -6.66%
334 -6.68%
335 -6.70%

Final Ranking Score

81%

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.