Hi, 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 Bluebridge Cook Strait Ferry.
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.
225 Valid Reviews
The Bluebridge Cook Strait Ferry experience has a total of 227 reviews. There are 225 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 225 valid reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 34 |
|
15% |
9/10 | 29 |
|
13% |
8/10 | 64 |
|
28% |
7/10 | 54 |
|
24% |
6/10 | 17 |
|
8% |
5/10 | 6 |
|
3% |
4/10 | 5 |
|
2% |
3/10 | 5 |
|
2% |
2/10 | 3 |
|
1% |
1/10 | 8 |
|
4% |
74.31% Average
The raw data average (mean) for all the Bluebridge Cook Strait Ferry valid reviews is 74.31% and is based on 225 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
192 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 225 valid reviews, the experience has 192 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 192 face-to-face reviews:
Rating | Count | Percentage | |
---|---|---|---|
10/10 | 26 |
|
14% |
9/10 | 28 |
|
15% |
8/10 | 59 |
|
31% |
7/10 | 49 |
|
26% |
6/10 | 17 |
|
9% |
5/10 | 5 |
|
3% |
4/10 | 3 |
|
2% |
3/10 | 2 |
|
1% |
2/10 | 3 |
|
2% |
1/10 | 0 |
|
0% |
76.98% Average
The raw data average (mean) for all the Bluebridge Cook Strait Ferry face-to-face reviews is 76.98% and is based on 192 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
60.72%
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 |
---|---|---|---|
Matt | 10/10 | 743 days | 100% |
SBlu | 1/10 | 774 days | 39% |
James Fuller | 3/10 | 805 days | 50% |
Mark | 4/10 | 835 days | 57% |
Véronique Laplante | 1/10 | 835 days | 36% |
Brian symmes | 1/10 | 835 days | 36% |
R. Armstrong | 5/10 | 866 days | 64% |
Sandy | 1/10 | 1049 days | 23% |
Jonathan | 1/10 | 1200 days | 16% |
PeteR | 3/10 | 1231 days | 20% |
La Vie | 1/10 | 1414 days | 9% |
Pauline Kane | 10/10 | 1992 days | 7% |
Roy Sandbrook | 10/10 | 2145 days | 6% |
Nickclev | 3/10 | 2176 days | 3% |
Pepe Huebner | 4/10 | 2599 days | 3% |
Jennie Tollerton | 8/10 | 2662 days | 5% |
Phil Baker | 9/10 | 2665 days | 5% |
Lily Roelofs | 1/10 | 2691 days | 2% |
Vince Midmore | 1/10 | 2933 days | 2% |
Francesca Scott | 10/10 | 2942 days | 4% |
Erna Muller | 9/10 | 2950 days | 4% |
Flip Hoogeveen | 8/10 | 2950 days | 4% |
Chaulet | 5/10 | 2953 days | 3% |
Felix Koehler | 4/10 | 2954 days | 3% |
Kristina Nunoz | 7/10 | 2954 days | 4% |
Becky Fox | 7/10 | 2956 days | 4% |
Emma Millett | 8/10 | 2956 days | 4% |
Rohzine | 7/10 | 2956 days | 4% |
P and W Gene | 8/10 | 2957 days | 4% |
Maaike | 8/10 | 2985 days | 4% |
T Geelen | 8/10 | 2985 days | 4% |
Wendy Steer | 8/10 | 2991 days | 4% |
Marcel Felder | 7/10 | 2995 days | 4% |
Jonas Gorb | 8/10 | 2999 days | 4% |
Rahel | 7/10 | 2999 days | 4% |
Maria Eriksson | 7/10 | 3002 days | 4% |
Gilbert Baptiste | 8/10 | 3002 days | 4% |
Emilie Bavard | 7/10 | 3002 days | 4% |
Josh Bird | 7/10 | 3004 days | 4% |
Jemima Brown | 7/10 | 3004 days | 4% |
Aurelie Otis | 9/10 | 3006 days | 4% |
Jake Bullin | 10/10 | 3008 days | 4% |
Lisa | 10/10 | 3009 days | 4% |
Bina Johansson | 10/10 | 3019 days | 4% |
Sabrina and Hannes | 8/10 | 3022 days | 4% |
Rogier Post | 7/10 | 3024 days | 4% |
Michal Za'heryuk | 8/10 | 3026 days | 4% |
Karine Dransart | 8/10 | 3030 days | 4% |
Samuel Michalak | 7/10 | 3033 days | 4% |
Ben | 7/10 | 3036 days | 4% |
Julian Gury | 7/10 | 3039 days | 4% |
Fazeel Ali | 10/10 | 3086 days | 4% |
Anna | 10/10 | 3240 days | 3% |
Jan Berendsen | 9/10 | 3244 days | 3% |
Jorge Anderson | 8/10 | 3244 days | 3% |
Simon Schatz | 8/10 | 3246 days | 3% |
Thomas Le Buzulier | 8/10 | 3250 days | 3% |
Kristina Breitwieser | 8/10 | 3251 days | 3% |
Magali Schwantke | 8/10 | 3254 days | 3% |
Laura Schratt | 6/10 | 3257 days | 3% |
Mathilde Arp | 8/10 | 3257 days | 3% |
Arnd Kohlen | 6/10 | 3257 days | 3% |
Laerke Soee | 7/10 | 3258 days | 3% |
Christian Krause | 9/10 | 3258 days | 3% |
Mark | 8/10 | 3265 days | 3% |
Hannes | 10/10 | 3269 days | 3% |
Nathan Raymond | 10/10 | 3271 days | 3% |
Rachel Bruce | 5/10 | 3272 days | 2% |
Sunja Abbe | 9/10 | 3274 days | 3% |
Kristof | 7/10 | 3276 days | 3% |
Talissa Missiato | 10/10 | 3277 days | 3% |
Eloise | 7/10 | 3277 days | 3% |
Julia Scharbert | 8/10 | 3278 days | 3% |
Severin Knegsch | 9/10 | 3278 days | 3% |
Pierre Jouffineau | 9/10 | 3279 days | 3% |
Floren Hoenschler | 7/10 | 3285 days | 3% |
Johanna | 7/10 | 3285 days | 3% |
Natasha Harbinson | 6/10 | 3289 days | 3% |
Sophie Kalnymsky | 7/10 | 3292 days | 3% |
Clemence and Pedro | 8/10 | 3293 days | 3% |
Maxim Motheus | 8/10 | 3295 days | 3% |
Mijke Boesten | 6/10 | 3296 days | 3% |
Jan | 6/10 | 3299 days | 3% |
Cindy Rizzo | 8/10 | 3302 days | 3% |
Ulli | 10/10 | 3305 days | 3% |
Anna Doßler | 9/10 | 3306 days | 3% |
Dave O'Brien | 10/10 | 3308 days | 3% |
Annett Kiessling | 7/10 | 3308 days | 3% |
Chiara | 7/10 | 3310 days | 3% |
Levi | 8/10 | 3312 days | 3% |
Martin Baleja | 10/10 | 3313 days | 3% |
Asborn Damgaard | 9/10 | 3317 days | 3% |
Leo James | 8/10 | 3317 days | 3% |
Sophie NIemann | 10/10 | 3318 days | 3% |
Edwine | 8/10 | 3318 days | 3% |
Jonathan and Gulsen | 10/10 | 3327 days | 3% |
Tatiana | 10/10 | 3327 days | 3% |
Valerie Balcom | 8/10 | 3327 days | 3% |
Raviv Regev | 8/10 | 3342 days | 3% |
Monika Dippel | 8/10 | 3345 days | 3% |
Marc | 6/10 | 3345 days | 3% |
Christine Slowiak | 8/10 | 3346 days | 3% |
Justin Kechanski | 6/10 | 3346 days | 3% |
Judith Goodyear | 7/10 | 3355 days | 3% |
Hannah Fidora | 8/10 | 3358 days | 3% |
Sarah Boettcher | 9/10 | 3406 days | 3% |
Katherine Halliday | 9/10 | 3626 days | 2% |
Christoph | 8/10 | 3627 days | 2% |
Katherine Britten | 9/10 | 3629 days | 2% |
Trevor Wichman | 9/10 | 3670 days | 2% |
Jan Towers | 10/10 | 3969 days | 1% |
isabel Zander | 7/10 | 3970 days | 1% |
Corinne | 8/10 | 3972 days | 1% |
Martin Sajdok | 5/10 | 3973 days | 1% |
Camille Bellay | 7/10 | 3973 days | 1% |
Garry Renton | 7/10 | 3978 days | 1% |
Paula Renton | 7/10 | 3978 days | 1% |
Simon Mehlmann | 7/10 | 3979 days | 1% |
Carolin Siegert | 8/10 | 3979 days | 1% |
Sarah Beyeler | 10/10 | 4001 days | 1% |
Kim Lavener | 10/10 | 4001 days | 1% |
Rosie | 7/10 | 4002 days | 1% |
Anna Sternberg | 6/10 | 4003 days | 1% |
Steffen | 9/10 | 4005 days | 1% |
Nina Helmling | 8/10 | 4005 days | 1% |
Friederike Kranzin | 7/10 | 4009 days | 1% |
Guillaume | 6/10 | 4011 days | 1% |
Roy Matthieu | 7/10 | 4013 days | 1% |
Cindy Benayoum | 7/10 | 4013 days | 1% |
Simon Tanguy | 8/10 | 4021 days | 1% |
David Krasner | 9/10 | 4027 days | 1% |
Susan | 8/10 | 4027 days | 1% |
Jesseca Klausch | 6/10 | 4028 days | 1% |
Vincent Schaeflier | 6/10 | 4028 days | 1% |
Timothee Serres | 7/10 | 4032 days | 1% |
Jesse Flynn | 6/10 | 4037 days | 1% |
Claudia | 10/10 | 4039 days | 1% |
Stuart Wilson | 8/10 | 4057 days | 1% |
Marine | 9/10 | 4058 days | 1% |
Supiot Zudovic | 10/10 | 4349 days | 0% |
Iban Dupont | 7/10 | 4350 days | 0% |
Guillaume Boudrand | 8/10 | 4350 days | 0% |
Rampon | 9/10 | 4354 days | 0% |
Jirka Sirka | 8/10 | 4355 days | 0% |
Debiesse | 9/10 | 4355 days | 0% |
Jitka Zenahlikova | 5/10 | 4359 days | 0% |
Gale Willcocks | 10/10 | 4360 days | 0% |
Ken Richardson | 8/10 | 4360 days | 0% |
Cloarec Guillaume | 9/10 | 4362 days | 0% |
Kathy Arthurs | 8/10 | 4367 days | 0% |
Claire | 7/10 | 4367 days | 0% |
Brendon Furney | 9/10 | 4371 days | 0% |
Sanchez | 2/10 | 4379 days | 0% |
Mary Neustroski | 9/10 | 4381 days | 1% |
Scholler | 10/10 | 4426 days | 1% |
Nadine and Jan | 8/10 | 4439 days | 1% |
Frederick Neilsen | 8/10 | 4469 days | 1% |
Paulmiriamgarry | 10/10 | 4610 days | 1% |
Numa Brouimet | 7/10 | 4728 days | 1% |
Virgil Anabel | 9/10 | 4728 days | 1% |
Melanie Friessen | 6/10 | 4734 days | 1% |
D van Dongen | 7/10 | 4736 days | 1% |
David Perry | 8/10 | 4741 days | 1% |
pamr | 8/10 | 4745 days | 1% |
M Neuman | 8/10 | 4753 days | 1% |
A Sorg | 10/10 | 4753 days | 1% |
ge04jen | 7/10 | 4792 days | 1% |
hendrik king | 7/10 | 4792 days | 1% |
jule | 8/10 | 4853 days | 1% |
Ryan Dorsey | 8/10 | 5095 days | 1% |
Kathleen Brown | 8/10 | 5096 days | 1% |
Pete H | 2/10 | 5472 days | 1% |
hermine Petz | 2/10 | 5485 days | 1% |
Mike Kirchner | 6/10 | 5487 days | 1% |
Ann Grandchamp | 10/10 | 5505 days | 1% |
Holliger | 7/10 | 5508 days | 1% |
Kane Chain | 6/10 | 5508 days | 1% |
Glenn Nicholson | 8/10 | 5511 days | 1% |
sanneb1 | 7/10 | 5538 days | 1% |
jamesg | 8/10 | 5551 days | 1% |
Bas van Schagen | 7/10 | 5560 days | 1% |
Des Longville | 7/10 | 5706 days | 1% |
VirginiaR | 9/10 | 5789 days | 1% |
Raewyn | 7/10 | 5794 days | 1% |
Sally477 | 9/10 | 5797 days | 1% |
Limor | 9/10 | 5868 days | 1% |
Hove | 8/10 | 5869 days | 1% |
Lieke | 8/10 | 5869 days | 1% |
martin piper | 8/10 | 5872 days | 1% |
purplekat99 | 10/10 | 5918 days | 1% |
Patricia | 10/10 | 5918 days | 1% |
Tiana | 8/10 | 5936 days | 1% |
Raey | 10/10 | 5994 days | 1% |
Carmen | 3/10 | 6049 days | 1% |
Dave | 7/10 | 6056 days | 1% |
Sheila Haran | 7/10 | 6169 days | 1% |
Caroline Cole | 4/10 | 6174 days | 1% |
Wendy | 8/10 | 6181 days | 1% |
Annette Hurst | 8/10 | 6187 days | 1% |
Phil Connelly | 7/10 | 6189 days | 1% |
Andria Davis | 9/10 | 6190 days | 1% |
Georgina Mulligan | 7/10 | 6190 days | 1% |
Claire Masling | 8/10 | 6197 days | 1% |
Christian Schwerdt | 7/10 | 6198 days | 1% |
Jackie Horwell | 10/10 | 6198 days | 1% |
Gustavo | 7/10 | 6198 days | 1% |
Sean Pierce | 5/10 | 6202 days | 1% |
Roger and Heather Smith | 10/10 | 6202 days | 1% |
Tobias Rahm | 10/10 | 6202 days | 1% |
Roman | 6/10 | 6208 days | 1% |
ranker_851 | 8/10 | 6208 days | 1% |
Vaclaf | 8/10 | 6208 days | 1% |
Sebastian Bleck | 7/10 | 6212 days | 1% |
Emma Dolk | 4/10 | 6213 days | 1% |
Sheryl | 8/10 | 6233 days | 1% |
David | 8/10 | 6243 days | 1% |
Iain | 6/10 | 6244 days | 1% |
Fred and Tim | 7/10 | 6278 days | 1% |
George | 9/10 | 6513 days | 1% |
Matous | 7/10 | 6518 days | 1% |
clairekidd | 7/10 | 6526 days | 1% |
Jonas | 3/10 | 6532 days | 1% |
Stefan | 7/10 | 6557 days | 1% |
Stefan | 8/10 | 6567 days | 1% |
Justin | 9/10 | 6567 days | 1% |
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
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 Bluebridge Cook Strait Ferry experience has plenty of reviews and does not meet the criteria for any adjustment.
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 52 days. However the Bluebridge Cook Strait Ferry 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 Bluebridge Cook Strait Ferry experience has been adjusted for 200 days. Adjustments are according to the following table.
Days | Adjustment |
---|---|
… | … |
197 | -4.09% |
198 | -4.11% |
199 | -4.13% |
200 | -4.15% |
201 | -4.18% |
202 | -4.20% |
203 | -4.22% |
… | … |
16.75% 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.
73%
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.