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 Dolphin Encounter Kaikoura.

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

Dolphin Encounter Kaikoura

Valid Reviews

254 Valid Reviews

The Dolphin Encounter Kaikoura experience has a total of 256 reviews. There are 254 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 254 valid reviews:

Rating Count Percentage
10/10 135
53%
9/10 74
29%
8/10 31
12%
7/10 13
5%
6/10 1
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

92.95% Average

The raw data average (mean) for all the Dolphin Encounter Kaikoura valid reviews is 92.95% and is based on 254 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

210 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 254 valid reviews, the experience has 210 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 210 face-to-face reviews:

Rating Count Percentage
10/10 104
50%
9/10 66
31%
8/10 30
14%
7/10 10
5%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

92.57% Average

The raw data average (mean) for all the Dolphin Encounter Kaikoura face-to-face reviews is 92.57% and is based on 210 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

93.97%

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
Michael Holm 9/10 841 days true 15.22 100%
Stefan Zink 10/10 1093 days true 5.0 33%
Fentrup 9/10 1099 days true 4.99 33%
Katharina Koch 10/10 1103 days true 4.98 33%
Aurelie and Ben Marie 9/10 1105 days true 4.98 33%
Sebastian Braun 9/10 1193 days true 4.81 32%
Joanne Woo 10/10 1211 days 4.77 31%
Chris 6/10 1242 days 3.91 26%
Olivier Reculeau 10/10 1427 days true 4.35 29%
Susanne Breudel 10/10 1432 days true 4.34 29%
Josh Legge 10/10 1440 days true 4.32 28%
Daniel Weber 9/10 1442 days true 4.32 28%
Virginia Fradin 10/10 1446 days true 4.31 28%
Olivier Anciaux 9/10 1449 days true 4.31 28%
Wendy van Boom 10/10 1449 days true 4.31 28%
Bas Hoogteijling 10/10 1452 days true 4.3 28%
Mira Huckfield 10/10 1462 days true 4.28 28%
Maike Santelmann 10/10 1474 days true 4.26 28%
Levin Stuers 10/10 1479 days true 4.25 28%
magdalena gomez haedo 9/10 1482 days 4.24 28%
Lucca Weisbender 10/10 1485 days 4.24 28%
Anna Scholten 10/10 1485 days true 4.24 28%
Nils Kissel 10/10 1495 days 4.22 28%
Madita and Lisann 10/10 1531 days true 4.15 27%
sanneke tangel 10/10 1537 days true 4.14 27%
Georgia Coleman 10/10 1537 days true 4.14 27%
Virgil Spruit 8/10 1541 days true 3.92 26%
Xue Rong Kok 7/10 1547 days 3.75 25%
Anthony Jacobs 10/10 1669 days 3.88 25%
Sofie Jebsen 10/10 1811 days true 3.6 24%
Tobias 10/10 1811 days true 3.6 24%
Annika Funk 10/10 1847 days true 3.53 23%
Dawn Mulligan 10/10 1863 days true 3.5 23%
Christophe Scieszka 10/10 1881 days 3.46 23%
Hubert 8/10 1920 days true 3.22 21%
Ondrej Stepanek 8/10 2156 days true 2.78 18%
Boneschova Jarka 10/10 2156 days true 2.92 19%
Heike Heller 10/10 2165 days true 2.91 19%
Andreas Mouteiro 9/10 2165 days true 2.91 19%
Josefin Lind 10/10 2166 days true 2.9 19%
Herman Holmgist 10/10 2166 days true 2.9 19%
Felicitas 9/10 2188 days true 2.86 19%
Antoine 8/10 2196 days true 2.7 18%
Mara K 10/10 2215 days 2.81 18%
Emilie Chanbon 10/10 2218 days true 2.8 18%
Alexis Redor 10/10 2218 days true 2.8 18%
Julia Amberger 8/10 2237 days true 2.63 17%
Annalina Drebald 8/10 2237 days true 2.63 17%
balesdent 9/10 2243 days true 2.75 18%
Alineet Gautier 10/10 2246 days true 2.75 18%
Annika Schmidt 10/10 2526 days true 2.2 14%
Patrick Stoeit 10/10 2526 days true 2.2 14%
Audrey Ripoche 9/10 2528 days true 2.2 14%
Rey Germain 9/10 2528 days true 2.2 14%
Christofer Tonn 10/10 2538 days true 2.18 14%
Ann Furlong 10/10 2546 days true 2.16 14%
Trudy Ryan 8/10 2546 days true 2.05 13%
Jill Fischer 10/10 2552 days 2.15 14%
Kim 10/10 2552 days 2.15 14%
Francois Marchar 9/10 2562 days true 2.13 14%
Jan Zimmerman 10/10 2567 days true 2.12 14%
Elvin Teo 10/10 2580 days 2.09 14%
Rob 9/10 2628 days true 2.0 13%
Andreas Garbin 10/10 2630 days true 2.0 13%
Joanna 9/10 2648 days true 1.96 13%
Mellow 10/10 2672 days 1.91 13%
whalelover88 10/10 2825 days 1.61 11%
Jos Schieveen 8/10 2896 days true 1.4 9%
Goran Backlund 9/10 2902 days true 1.46 10%
Nathan Sait 10/10 2909 days true 1.45 10%
Toby Clark 10/10 2909 days true 1.45 10%
Maxine Gilman 10/10 2912 days true 1.44 9%
Harald 9/10 2926 days true 1.42 9%
Dominik Langenegger 9/10 2928 days true 1.41 9%
Rebecca Richardson 9/10 2928 days true 1.41 9%
Andrew Powell 9/10 2928 days true 1.41 9%
Peter Field 10/10 2928 days true 1.41 9%
Eric Lombaard 8/10 2929 days true 1.34 9%
Nicholas Prakenhammar 10/10 2930 days true 1.41 9%
Peter Wall 7/10 2930 days true 1.28 8%
Verne Heath 8/10 2931 days true 1.34 9%
John O'Donnell 10/10 2932 days true 1.41 9%
Paul Fairbrass 10/10 2939 days true 1.39 9%
Frank Krivauek 10/10 2940 days true 1.39 9%
Rocco Christian 7/10 2940 days true 1.26 8%
Kurt & Noemi Buhler 7/10 2941 days true 1.26 8%
Therese 7/10 2944 days true 1.26 8%
Katie K 9/10 2955 days true 1.36 9%
CMJ 10/10 2977 days 1.32 9%
Jacqueline 10/10 3008 days 1.26 8%
Marc & Pauline 9/10 3014 days true 1.24 8%
Kevin & Chris 9/10 3015 days true 1.24 8%
Robin & Sandra Dijke 9/10 3017 days true 1.24 8%
Laura McCusker 8/10 3024 days true 1.16 8%
Dexter 10/10 3222 days 0.84 6%
Jasmin Loeffler 10/10 3228 days true 0.83 5%
Natascha Rachel 10/10 3228 days true 0.83 5%
Res Kormann 10/10 3241 days true 0.8 5%
Sarah James 10/10 3251 days true 0.78 5%
Nick Taylor 10/10 3251 days true 0.78 5%
Nicola Young 10/10 3251 days true 0.78 5%
Stefan Elsenbruch 9/10 3256 days true 0.77 5%
Stefanie 7/10 3266 days true 0.68 4%
Koen Vanlede 10/10 3269 days true 0.75 5%
Van Vliet 8/10 3270 days true 0.71 5%
Vanessa Vogel 10/10 3273 days true 0.74 5%
Marcel Camsch 9/10 3275 days true 0.73 5%
Keely & Mark Haynes 10/10 3276 days true 0.73 5%
Svea Sauter 10/10 3276 days true 0.73 5%
henriket 10/10 3277 days true 0.73 5%
Amanda Wells 10/10 3277 days true 0.73 5%
K & J Overton 9/10 3277 days true 0.73 5%
Jerry & Floon 9/10 3281 days true 0.72 5%
Bartl 10/10 3281 days true 0.72 5%
travellingfamilyof6 10/10 3283 days 0.72 5%
WeddingMaven 10/10 3283 days 0.72 5%
Lieve Verdonck 8/10 3284 days true 0.68 4%
Victoria Purver 8/10 3286 days true 0.68 4%
Thelia Beament 9/10 3286 days true 0.71 5%
Edwards 9/10 3290 days true 0.7 5%
Mark Irwin 9/10 3294 days true 0.7 5%
Agnes McMillan 10/10 3295 days true 0.69 5%
Leslie 9/10 3295 days true 0.69 5%
Selina Mueller 10/10 3297 days true 0.69 5%
Jill Dean 10/10 3298 days true 0.69 5%
Chloe Finster 10/10 3298 days true 0.69 5%
Vanderhorst 9/10 3299 days true 0.69 5%
Judith K. 10/10 3301 days true 0.68 4%
Amanda Wallace 9/10 3301 days true 0.68 4%
Mark Aarts 10/10 3302 days true 0.68 4%
Forestal Youri 9/10 3303 days true 0.68 4%
Dave and Lin Mungham 10/10 3304 days true 0.68 4%
Jane Hancock 10/10 3306 days true 0.67 4%
Stephi 10/10 3311 days 0.66 4%
Amanda 10/10 3311 days 0.66 4%
Mick Doherty 9/10 3342 days 0.6 4%
hendrik king 7/10 3342 days 0.55 4%
Shoe 10/10 3373 days 0.54 4%
marcvergroesen 9/10 3587 days 0.12 1%
Jenny Leyland 9/10 3587 days 0.12 1%
MarcyMark 10/10 3617 days 0.06 0%
katrina Marshall 10/10 3634 days true 0.03 0%
Von 9/10 3648 days 0.0 0%
Judith 8/10 3654 days true 0.0 0%
Doris Resch 10/10 3654 days true 0.0 0%
Sheila Morgan 10/10 3657 days true 0.0 0%
Maria Newton 9/10 3658 days true 0.0 0%
Faller 10/10 3671 days true 0.0 0%
Wim Van Gastel 8/10 3674 days true 0.0 0%
Laura Walters 9/10 3675 days true 0.0 0%
Chance McGuire 10/10 3676 days 0.0 0%
cees juffermans 9/10 3689 days true 0.0 0%
Markus 10/10 3692 days true 0.0 0%
Grainne Ahern 10/10 3707 days 0.0 0%
sutuckey 10/10 3707 days 0.0 0%
Honeymooners 10/10 3707 days 0.0 0%
sophiep 9/10 3722 days true 0.0 0%
chuckchallenger 10/10 3738 days 0.0 0%
mdarras 9/10 3742 days true 0.0 0%
joramv 9/10 3742 days true 0.0 0%
Michelle Kraemer 10/10 3745 days true 0.0 0%
Kimberly Skyes 10/10 3745 days true 0.0 0%
Ruth Colmer 9/10 3748 days true 0.0 0%
maleta 8/10 3759 days true 0.0 0%
Simon_and_Jane_OZ 9/10 3952 days 0.0 0%
JoF 10/10 3974 days true 0.0 0%
Christian Kamm 10/10 3979 days true 0.0 0%
Michael Maddams 7/10 3980 days true 0.0 0%
Joanna Harrnon 10/10 3981 days true 0.0 0%
Sarah 8/10 3982 days true 0.0 0%
David 10/10 3982 days 0.0 0%
jjakkeren 9/10 3982 days true 0.0 0%
Alanna 10/10 3984 days true 0.0 0%
ElissaH 10/10 3985 days true 0.0 0%
Andrew Smith 9/10 3988 days true 0.0 0%
Jean 10/10 3999 days true 0.0 0%
CarinaB1 10/10 4003 days true 0.0 0%
Lindsey 9/10 4014 days 0.0 0%
Lisa 10/10 4019 days true 0.0 0%
Laura 8/10 4022 days true 0.0 0%
kiwibrit86 9/10 4024 days 0.0 0%
Visken 10/10 4026 days true 0.0 0%
Christina 10/10 4031 days true 0.0 0%
RachaelO 10/10 4032 days true 0.0 0%
Marianne 10/10 4033 days true 0.0 0%
Peppa 10/10 4033 days true 0.0 0%
Jackie 9/10 4047 days true 0.0 0%
Patrick 9/10 4047 days true 0.0 0%
Carla 8/10 4048 days true 0.0 0%
Keith 10/10 4054 days 0.0 0%
Saskia 9/10 4055 days true 0.0 0%
Patrick 10/10 4059 days true 0.0 0%
Charlie 9/10 4063 days true 0.0 0%
Ten 10/10 4063 days true 0.0 0%
Kevin Dangerfield 10/10 4072 days 0.0 0%
Graham 9/10 4087 days true 0.0 0%
David 10/10 4096 days true 0.0 0%
Eveline 10/10 4096 days true 0.0 0%
Mette 10/10 4103 days true 0.0 0%
Rowan 9/10 4128 days true 0.0 0%
Hanna 10/10 4128 days true 0.0 0%
Sally Walker 10/10 4133 days 0.0 0%
abby 10/10 4139 days true 0.0 0%
Paul 10/10 4150 days true 0.0 0%
Peter 10/10 4158 days true 0.0 0%
Anna 10/10 4180 days true 0.0 0%
Liz 9/10 4189 days true 0.0 0%
Laura 8/10 4189 days true 0.0 0%
Amy Shields 7/10 4193 days true 0.0 0%
Erin 9/10 4201 days true 0.0 0%
George Burgas 7/10 4207 days true 0.0 0%
Sharon Curly 7/10 4215 days true 0.0 0%
Peddy 8/10 4217 days 0.0 0%
Christine 9/10 4231 days true 0.0 0%
Charlie Bond 8/10 4264 days true 0.0 0%
SandyS 10/10 4317 days 0.0 0%
BexStar 10/10 4331 days 0.0 0%
Galen 9/10 4348 days true 0.0 0%
Monica Black 10/10 4348 days true 0.0 0%
Denise 10/10 4365 days true 0.0 0%
Ria 9/10 4369 days true 0.0 0%
Christian 7/10 4369 days true 0.0 0%
Wiebke 9/10 4373 days true 0.0 0%
Phil Connelly 9/10 4374 days true 0.0 0%
Amanda 9/10 4380 days true 0.0 0%
Erwin de Kleijn 9/10 4387 days true 0.0 0%
Nick 10/10 4396 days true 0.0 0%
John 9/10 4396 days true 0.0 0%
Sandra Gustafson 10/10 4424 days true 0.0 0%
Jo 10/10 4424 days true 0.0 0%
Helena 10/10 4425 days true 0.0 0%
Seldam 8/10 4430 days true 0.0 0%
Andrew Purdam 7/10 4438 days 0.0 0%
Gerber Liselotte 10/10 4456 days true 0.0 0%
Gabriela Herger 8/10 4464 days true 0.0 0%
Jane Coleman 8/10 4467 days true 0.0 0%
Wendy Williams 9/10 4474 days true 0.0 0%
Claire 8/10 4698 days true 0.0 0%
Will 9/10 4698 days true 0.0 0%
JanKovar 10/10 4700 days true 0.0 0%
Justin 10/10 4703 days true 0.0 0%
Beth 9/10 4709 days true 0.0 0%
Hanneke 9/10 4710 days true 0.0 0%
Cat 8/10 4712 days true 0.0 0%
MartinTrenker 9/10 4718 days true 0.0 0%
Janneke 10/10 4719 days true 0.0 0%
Renee 9/10 4722 days true 0.0 0%
Elke 8/10 4737 days true 0.0 0%
Malon 10/10 4738 days true 0.0 0%
Ralph 10/10 4747 days true 0.0 0%
Lucy 10/10 4747 days true 0.0 0%
Gordon 8/10 4759 days true 0.0 0%
Beate 9/10 4760 days true 0.0 0%
MartinJago 8/10 4771 days true 0.0 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 Dolphin Encounter Kaikoura experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Dolphin Encounter Kaikoura 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 199 days.

The Dolphin Encounter Kaikoura experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

90%

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.