G'day, 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.
Bluebridge Cook Strait Ferry
Valid Reviews
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.
Face-to-Face Reviews
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.
Weighted Average
60.40%
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 | 717 days | 100% |
| SBlu | 1/10 | 748 days | 39% |
| James Fuller | 3/10 | 779 days | 50% |
| Mark | 4/10 | 809 days | 58% |
| Véronique Laplante | 1/10 | 809 days | 36% |
| Brian symmes | 1/10 | 809 days | 36% |
| R. Armstrong | 5/10 | 840 days | 64% |
| Sandy | 1/10 | 1023 days | 24% |
| Jonathan | 1/10 | 1174 days | 17% |
| PeteR | 3/10 | 1205 days | 21% |
| La Vie | 1/10 | 1388 days | 9% |
| Pauline Kane | 10/10 | 1966 days | 7% |
| Roy Sandbrook | 10/10 | 2119 days | 6% |
| Nickclev | 3/10 | 2150 days | 3% |
| Pepe Huebner | 4/10 | 2573 days | 3% |
| Jennie Tollerton | 8/10 | 2636 days | 5% |
| Phil Baker | 9/10 | 2639 days | 5% |
| Lily Roelofs | 1/10 | 2665 days | 2% |
| Vince Midmore | 1/10 | 2907 days | 2% |
| Francesca Scott | 10/10 | 2916 days | 4% |
| Erna Muller | 9/10 | 2924 days | 4% |
| Flip Hoogeveen | 8/10 | 2924 days | 4% |
| Chaulet | 5/10 | 2927 days | 3% |
| Felix Koehler | 4/10 | 2928 days | 3% |
| Kristina Nunoz | 7/10 | 2928 days | 4% |
| Becky Fox | 7/10 | 2930 days | 4% |
| Emma Millett | 8/10 | 2930 days | 4% |
| Rohzine | 7/10 | 2930 days | 4% |
| P and W Gene | 8/10 | 2931 days | 4% |
| Maaike | 8/10 | 2959 days | 4% |
| T Geelen | 8/10 | 2959 days | 4% |
| Wendy Steer | 8/10 | 2965 days | 4% |
| Marcel Felder | 7/10 | 2969 days | 4% |
| Jonas Gorb | 8/10 | 2973 days | 4% |
| Rahel | 7/10 | 2973 days | 4% |
| Maria Eriksson | 7/10 | 2976 days | 4% |
| Gilbert Baptiste | 8/10 | 2976 days | 4% |
| Emilie Bavard | 7/10 | 2976 days | 4% |
| Josh Bird | 7/10 | 2978 days | 4% |
| Jemima Brown | 7/10 | 2978 days | 4% |
| Aurelie Otis | 9/10 | 2980 days | 4% |
| Jake Bullin | 10/10 | 2982 days | 4% |
| Lisa | 10/10 | 2983 days | 4% |
| Bina Johansson | 10/10 | 2993 days | 4% |
| Sabrina and Hannes | 8/10 | 2996 days | 4% |
| Rogier Post | 7/10 | 2998 days | 4% |
| Michal Za'heryuk | 8/10 | 3000 days | 4% |
| Karine Dransart | 8/10 | 3004 days | 4% |
| Samuel Michalak | 7/10 | 3007 days | 4% |
| Ben | 7/10 | 3010 days | 3% |
| Julian Gury | 7/10 | 3013 days | 3% |
| Fazeel Ali | 10/10 | 3060 days | 4% |
| Anna | 10/10 | 3214 days | 3% |
| Jan Berendsen | 9/10 | 3218 days | 3% |
| Jorge Anderson | 8/10 | 3218 days | 3% |
| Simon Schatz | 8/10 | 3220 days | 3% |
| Thomas Le Buzulier | 8/10 | 3224 days | 3% |
| Kristina Breitwieser | 8/10 | 3225 days | 3% |
| Magali Schwantke | 8/10 | 3228 days | 3% |
| Laura Schratt | 6/10 | 3231 days | 3% |
| Mathilde Arp | 8/10 | 3231 days | 3% |
| Arnd Kohlen | 6/10 | 3231 days | 3% |
| Laerke Soee | 7/10 | 3232 days | 3% |
| Christian Krause | 9/10 | 3232 days | 3% |
| Mark | 8/10 | 3239 days | 3% |
| Hannes | 10/10 | 3243 days | 3% |
| Nathan Raymond | 10/10 | 3245 days | 3% |
| Rachel Bruce | 5/10 | 3246 days | 2% |
| Sunja Abbe | 9/10 | 3248 days | 3% |
| Kristof | 7/10 | 3250 days | 3% |
| Talissa Missiato | 10/10 | 3251 days | 3% |
| Eloise | 7/10 | 3251 days | 3% |
| Julia Scharbert | 8/10 | 3252 days | 3% |
| Severin Knegsch | 9/10 | 3252 days | 3% |
| Pierre Jouffineau | 9/10 | 3253 days | 3% |
| Floren Hoenschler | 7/10 | 3259 days | 3% |
| Johanna | 7/10 | 3259 days | 3% |
| Natasha Harbinson | 6/10 | 3263 days | 3% |
| Sophie Kalnymsky | 7/10 | 3266 days | 3% |
| Clemence and Pedro | 8/10 | 3267 days | 3% |
| Maxim Motheus | 8/10 | 3269 days | 3% |
| Mijke Boesten | 6/10 | 3270 days | 3% |
| Jan | 6/10 | 3273 days | 3% |
| Cindy Rizzo | 8/10 | 3276 days | 3% |
| Ulli | 10/10 | 3279 days | 3% |
| Anna Doßler | 9/10 | 3280 days | 3% |
| Dave O'Brien | 10/10 | 3282 days | 3% |
| Annett Kiessling | 7/10 | 3282 days | 3% |
| Chiara | 7/10 | 3284 days | 3% |
| Levi | 8/10 | 3286 days | 3% |
| Martin Baleja | 10/10 | 3287 days | 3% |
| Asborn Damgaard | 9/10 | 3291 days | 3% |
| Leo James | 8/10 | 3291 days | 3% |
| Sophie NIemann | 10/10 | 3292 days | 3% |
| Edwine | 8/10 | 3292 days | 3% |
| Jonathan and Gulsen | 10/10 | 3301 days | 3% |
| Tatiana | 10/10 | 3301 days | 3% |
| Valerie Balcom | 8/10 | 3301 days | 3% |
| Raviv Regev | 8/10 | 3316 days | 3% |
| Monika Dippel | 8/10 | 3319 days | 3% |
| Marc | 6/10 | 3319 days | 2% |
| Christine Slowiak | 8/10 | 3320 days | 3% |
| Justin Kechanski | 6/10 | 3320 days | 2% |
| Judith Goodyear | 7/10 | 3329 days | 3% |
| Hannah Fidora | 8/10 | 3332 days | 3% |
| Sarah Boettcher | 9/10 | 3380 days | 3% |
| Katherine Halliday | 9/10 | 3600 days | 2% |
| Christoph | 8/10 | 3601 days | 2% |
| Katherine Britten | 9/10 | 3603 days | 2% |
| Trevor Wichman | 9/10 | 3644 days | 2% |
| Jan Towers | 10/10 | 3943 days | 1% |
| isabel Zander | 7/10 | 3944 days | 1% |
| Corinne | 8/10 | 3946 days | 1% |
| Martin Sajdok | 5/10 | 3947 days | 1% |
| Camille Bellay | 7/10 | 3947 days | 1% |
| Garry Renton | 7/10 | 3952 days | 1% |
| Paula Renton | 7/10 | 3952 days | 1% |
| Simon Mehlmann | 7/10 | 3953 days | 1% |
| Carolin Siegert | 8/10 | 3953 days | 1% |
| Sarah Beyeler | 10/10 | 3975 days | 1% |
| Kim Lavener | 10/10 | 3975 days | 1% |
| Rosie | 7/10 | 3976 days | 1% |
| Anna Sternberg | 6/10 | 3977 days | 1% |
| Steffen | 9/10 | 3979 days | 1% |
| Nina Helmling | 8/10 | 3979 days | 1% |
| Friederike Kranzin | 7/10 | 3983 days | 1% |
| Guillaume | 6/10 | 3985 days | 1% |
| Roy Matthieu | 7/10 | 3987 days | 1% |
| Cindy Benayoum | 7/10 | 3987 days | 1% |
| Simon Tanguy | 8/10 | 3995 days | 1% |
| David Krasner | 9/10 | 4001 days | 1% |
| Susan | 8/10 | 4001 days | 1% |
| Jesseca Klausch | 6/10 | 4002 days | 1% |
| Vincent Schaeflier | 6/10 | 4002 days | 1% |
| Timothee Serres | 7/10 | 4006 days | 1% |
| Jesse Flynn | 6/10 | 4011 days | 1% |
| Claudia | 10/10 | 4013 days | 1% |
| Stuart Wilson | 8/10 | 4031 days | 1% |
| Marine | 9/10 | 4032 days | 1% |
| Supiot Zudovic | 10/10 | 4323 days | 0% |
| Iban Dupont | 7/10 | 4324 days | 0% |
| Guillaume Boudrand | 8/10 | 4324 days | 0% |
| Rampon | 9/10 | 4328 days | 0% |
| Jirka Sirka | 8/10 | 4329 days | 0% |
| Debiesse | 9/10 | 4329 days | 0% |
| Jitka Zenahlikova | 5/10 | 4333 days | 0% |
| Gale Willcocks | 10/10 | 4334 days | 0% |
| Ken Richardson | 8/10 | 4334 days | 0% |
| Cloarec Guillaume | 9/10 | 4336 days | 0% |
| Kathy Arthurs | 8/10 | 4341 days | 0% |
| Claire | 7/10 | 4341 days | 0% |
| Brendon Furney | 9/10 | 4345 days | 0% |
| Sanchez | 2/10 | 4353 days | 0% |
| Mary Neustroski | 9/10 | 4355 days | 0% |
| Scholler | 10/10 | 4400 days | 1% |
| Nadine and Jan | 8/10 | 4413 days | 1% |
| Frederick Neilsen | 8/10 | 4443 days | 1% |
| Paulmiriamgarry | 10/10 | 4584 days | 1% |
| Numa Brouimet | 7/10 | 4702 days | 1% |
| Virgil Anabel | 9/10 | 4702 days | 1% |
| Melanie Friessen | 6/10 | 4708 days | 1% |
| D van Dongen | 7/10 | 4710 days | 1% |
| David Perry | 8/10 | 4715 days | 1% |
| pamr | 8/10 | 4719 days | 1% |
| M Neuman | 8/10 | 4727 days | 1% |
| A Sorg | 10/10 | 4727 days | 1% |
| ge04jen | 7/10 | 4766 days | 1% |
| hendrik king | 7/10 | 4766 days | 1% |
| jule | 8/10 | 4827 days | 1% |
| Ryan Dorsey | 8/10 | 5069 days | 1% |
| Kathleen Brown | 8/10 | 5070 days | 1% |
| Pete H | 2/10 | 5446 days | 1% |
| hermine Petz | 2/10 | 5459 days | 1% |
| Mike Kirchner | 6/10 | 5461 days | 1% |
| Ann Grandchamp | 10/10 | 5479 days | 1% |
| Holliger | 7/10 | 5482 days | 1% |
| Kane Chain | 6/10 | 5482 days | 1% |
| Glenn Nicholson | 8/10 | 5485 days | 1% |
| sanneb1 | 7/10 | 5512 days | 1% |
| jamesg | 8/10 | 5525 days | 1% |
| Bas van Schagen | 7/10 | 5534 days | 1% |
| Des Longville | 7/10 | 5680 days | 1% |
| VirginiaR | 9/10 | 5763 days | 1% |
| Raewyn | 7/10 | 5768 days | 1% |
| Sally477 | 9/10 | 5772 days | 1% |
| Limor | 9/10 | 5842 days | 1% |
| Hove | 8/10 | 5843 days | 1% |
| Lieke | 8/10 | 5843 days | 1% |
| martin piper | 8/10 | 5847 days | 1% |
| purplekat99 | 10/10 | 5892 days | 1% |
| Patricia | 10/10 | 5892 days | 1% |
| Tiana | 8/10 | 5910 days | 1% |
| Raey | 10/10 | 5968 days | 1% |
| Carmen | 3/10 | 6023 days | 1% |
| Dave | 7/10 | 6030 days | 1% |
| Sheila Haran | 7/10 | 6143 days | 1% |
| Caroline Cole | 4/10 | 6148 days | 1% |
| Wendy | 8/10 | 6155 days | 1% |
| Annette Hurst | 8/10 | 6161 days | 1% |
| Phil Connelly | 7/10 | 6163 days | 1% |
| Andria Davis | 9/10 | 6164 days | 1% |
| Georgina Mulligan | 7/10 | 6164 days | 1% |
| Claire Masling | 8/10 | 6171 days | 1% |
| Christian Schwerdt | 7/10 | 6172 days | 1% |
| Jackie Horwell | 10/10 | 6172 days | 1% |
| Gustavo | 7/10 | 6172 days | 1% |
| Sean Pierce | 5/10 | 6176 days | 1% |
| Roger and Heather Smith | 10/10 | 6176 days | 1% |
| Tobias Rahm | 10/10 | 6176 days | 1% |
| Roman | 6/10 | 6182 days | 1% |
| ranker_851 | 8/10 | 6182 days | 1% |
| Vaclaf | 8/10 | 6182 days | 1% |
| Sebastian Bleck | 7/10 | 6186 days | 1% |
| Emma Dolk | 4/10 | 6187 days | 1% |
| Sheryl | 8/10 | 6208 days | 1% |
| David | 8/10 | 6217 days | 1% |
| Iain | 6/10 | 6218 days | 1% |
| Fred and Tim | 7/10 | 6252 days | 1% |
| George | 9/10 | 6487 days | 1% |
| Matous | 7/10 | 6492 days | 1% |
| clairekidd | 7/10 | 6500 days | 1% |
| Jonas | 3/10 | 6506 days | 1% |
| Stefan | 7/10 | 6531 days | 1% |
| Stefan | 8/10 | 6541 days | 1% |
| Justin | 9/10 | 6541 days | 1% |
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 Bluebridge Cook Strait Ferry experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.09% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 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 | -4.03% |
| 198 | -4.05% |
| 199 | -4.07% |
| 200 | -4.09% |
| 201 | -4.11% |
| 202 | -4.13% |
| 203 | -4.15% |
| … | … |
Balancing Adjustment
16.95% 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.
Final Ranking Score
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.