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

93.96%

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 9/10 839 days true 15.39 100%
Stefan Zink 10/10 1091 days true 5.0 33%
Fentrup 9/10 1097 days true 5.0 32%
Katharina Koch 10/10 1101 days true 4.99 32%
Aurelie and Ben Marie 9/10 1103 days true 4.98 32%
Sebastian Braun 9/10 1191 days true 4.81 31%
Joanne Woo 10/10 1209 days 4.78 31%
Chris 6/10 1240 days 3.91 25%
Olivier Reculeau 10/10 1425 days true 4.35 28%
Susanne Breudel 10/10 1430 days true 4.34 28%
Josh Legge 10/10 1438 days true 4.33 28%
Daniel Weber 9/10 1440 days true 4.32 28%
Virginia Fradin 10/10 1444 days true 4.32 28%
Olivier Anciaux 9/10 1447 days true 4.31 28%
Wendy van Boom 10/10 1447 days true 4.31 28%
Bas Hoogteijling 10/10 1450 days true 4.31 28%
Mira Huckfield 10/10 1460 days true 4.29 28%
Maike Santelmann 10/10 1472 days true 4.26 28%
Levin Stuers 10/10 1477 days true 4.25 28%
magdalena gomez haedo 9/10 1480 days 4.25 28%
Lucca Weisbender 10/10 1483 days 4.24 28%
Anna Scholten 10/10 1483 days true 4.24 28%
Nils Kissel 10/10 1493 days 4.22 27%
Madita and Lisann 10/10 1529 days true 4.15 27%
sanneke tangel 10/10 1535 days true 4.14 27%
Georgia Coleman 10/10 1535 days true 4.14 27%
Virgil Spruit 8/10 1539 days true 3.92 26%
Xue Rong Kok 7/10 1545 days 3.75 24%
Anthony Jacobs 10/10 1667 days 3.88 25%
Sofie Jebsen 10/10 1809 days true 3.6 23%
Tobias 10/10 1809 days true 3.6 23%
Annika Funk 10/10 1845 days true 3.53 23%
Dawn Mulligan 10/10 1861 days true 3.5 23%
Christophe Scieszka 10/10 1879 days 3.47 23%
Hubert 8/10 1918 days true 3.22 21%
Ondrej Stepanek 8/10 2154 days true 2.78 18%
Boneschova Jarka 10/10 2154 days true 2.93 19%
Heike Heller 10/10 2163 days true 2.91 19%
Andreas Mouteiro 9/10 2163 days true 2.91 19%
Josefin Lind 10/10 2164 days true 2.91 19%
Herman Holmgist 10/10 2164 days true 2.91 19%
Felicitas 9/10 2186 days true 2.86 19%
Antoine 8/10 2194 days true 2.71 18%
Mara K 10/10 2213 days 2.81 18%
Emilie Chanbon 10/10 2216 days true 2.81 18%
Alexis Redor 10/10 2216 days true 2.81 18%
Julia Amberger 8/10 2235 days true 2.63 17%
Annalina Drebald 8/10 2235 days true 2.63 17%
balesdent 9/10 2241 days true 2.76 18%
Alineet Gautier 10/10 2244 days true 2.75 18%
Annika Schmidt 10/10 2524 days true 2.2 14%
Patrick Stoeit 10/10 2524 days true 2.2 14%
Audrey Ripoche 9/10 2526 days true 2.2 14%
Rey Germain 9/10 2526 days true 2.2 14%
Christofer Tonn 10/10 2536 days true 2.18 14%
Ann Furlong 10/10 2544 days true 2.16 14%
Trudy Ryan 8/10 2544 days true 2.06 13%
Jill Fischer 10/10 2550 days 2.15 14%
Kim 10/10 2550 days 2.15 14%
Francois Marchar 9/10 2560 days true 2.13 14%
Jan Zimmerman 10/10 2565 days true 2.12 14%
Elvin Teo 10/10 2578 days 2.1 14%
Rob 9/10 2626 days true 2.0 13%
Andreas Garbin 10/10 2628 days true 2.0 13%
Joanna 9/10 2646 days true 1.96 13%
Mellow 10/10 2670 days 1.92 12%
whalelover88 10/10 2823 days 1.62 11%
Jos Schieveen 8/10 2894 days true 1.41 9%
Goran Backlund 9/10 2900 days true 1.47 10%
Nathan Sait 10/10 2907 days true 1.45 9%
Toby Clark 10/10 2907 days true 1.45 9%
Maxine Gilman 10/10 2910 days true 1.45 9%
Harald 9/10 2924 days true 1.42 9%
Dominik Langenegger 9/10 2926 days true 1.42 9%
Rebecca Richardson 9/10 2926 days true 1.42 9%
Andrew Powell 9/10 2926 days true 1.42 9%
Peter Field 10/10 2926 days true 1.42 9%
Eric Lombaard 8/10 2927 days true 1.34 9%
Nicholas Prakenhammar 10/10 2928 days true 1.41 9%
Peter Wall 7/10 2928 days true 1.29 8%
Verne Heath 8/10 2929 days true 1.34 9%
John O'Donnell 10/10 2930 days true 1.41 9%
Paul Fairbrass 10/10 2937 days true 1.4 9%
Frank Krivauek 10/10 2938 days true 1.39 9%
Rocco Christian 7/10 2938 days true 1.27 8%
Kurt & Noemi Buhler 7/10 2939 days true 1.27 8%
Therese 7/10 2942 days true 1.26 8%
Katie K 9/10 2953 days true 1.36 9%
CMJ 10/10 2975 days 1.32 9%
Jacqueline 10/10 3006 days 1.26 8%
Marc & Pauline 9/10 3012 days true 1.25 8%
Kevin & Chris 9/10 3013 days true 1.25 8%
Robin & Sandra Dijke 9/10 3015 days true 1.24 8%
Laura McCusker 8/10 3022 days true 1.17 8%
Dexter 10/10 3220 days 0.84 5%
Jasmin Loeffler 10/10 3226 days true 0.83 5%
Natascha Rachel 10/10 3226 days true 0.83 5%
Res Kormann 10/10 3239 days true 0.8 5%
Sarah James 10/10 3249 days true 0.78 5%
Nick Taylor 10/10 3249 days true 0.78 5%
Nicola Young 10/10 3249 days true 0.78 5%
Stefan Elsenbruch 9/10 3254 days true 0.77 5%
Stefanie 7/10 3264 days true 0.69 4%
Koen Vanlede 10/10 3267 days true 0.75 5%
Van Vliet 8/10 3268 days true 0.71 5%
Vanessa Vogel 10/10 3271 days true 0.74 5%
Marcel Camsch 9/10 3273 days true 0.74 5%
Keely & Mark Haynes 10/10 3274 days true 0.74 5%
Svea Sauter 10/10 3274 days true 0.74 5%
henriket 10/10 3275 days true 0.73 5%
Amanda Wells 10/10 3275 days true 0.73 5%
K & J Overton 9/10 3275 days true 0.73 5%
Jerry & Floon 9/10 3279 days true 0.73 5%
Bartl 10/10 3279 days true 0.73 5%
travellingfamilyof6 10/10 3281 days 0.72 5%
WeddingMaven 10/10 3281 days 0.72 5%
Lieve Verdonck 8/10 3282 days true 0.68 4%
Victoria Purver 8/10 3284 days true 0.68 4%
Thelia Beament 9/10 3284 days true 0.72 5%
Edwards 9/10 3288 days true 0.71 5%
Mark Irwin 9/10 3292 days true 0.7 5%
Agnes McMillan 10/10 3293 days true 0.7 5%
Leslie 9/10 3293 days true 0.7 5%
Selina Mueller 10/10 3295 days true 0.69 5%
Jill Dean 10/10 3296 days true 0.69 5%
Chloe Finster 10/10 3296 days true 0.69 5%
Vanderhorst 9/10 3297 days true 0.69 4%
Judith K. 10/10 3299 days true 0.69 4%
Amanda Wallace 9/10 3299 days true 0.69 4%
Mark Aarts 10/10 3300 days true 0.68 4%
Forestal Youri 9/10 3301 days true 0.68 4%
Dave and Lin Mungham 10/10 3302 days true 0.68 4%
Jane Hancock 10/10 3304 days true 0.68 4%
Stephi 10/10 3309 days 0.67 4%
Amanda 10/10 3309 days 0.67 4%
Mick Doherty 9/10 3340 days 0.61 4%
hendrik king 7/10 3340 days 0.55 4%
Shoe 10/10 3371 days 0.55 4%
marcvergroesen 9/10 3585 days 0.13 1%
Jenny Leyland 9/10 3585 days 0.13 1%
MarcyMark 10/10 3615 days 0.07 0%
katrina Marshall 10/10 3632 days true 0.04 0%
Von 9/10 3646 days 0.01 0%
Judith 8/10 3652 days true 0.0 0%
Doris Resch 10/10 3652 days true 0.0 0%
Sheila Morgan 10/10 3655 days true 0.0 0%
Maria Newton 9/10 3656 days true 0.0 0%
Faller 10/10 3669 days true 0.0 0%
Wim Van Gastel 8/10 3672 days true 0.0 0%
Laura Walters 9/10 3673 days true 0.0 0%
Chance McGuire 10/10 3674 days 0.0 0%
cees juffermans 9/10 3687 days true 0.0 0%
Markus 10/10 3690 days true 0.0 0%
Grainne Ahern 10/10 3705 days 0.0 0%
sutuckey 10/10 3705 days 0.0 0%
Honeymooners 10/10 3705 days 0.0 0%
sophiep 9/10 3720 days true 0.0 0%
chuckchallenger 10/10 3736 days 0.0 0%
mdarras 9/10 3740 days true 0.0 0%
joramv 9/10 3740 days true 0.0 0%
Michelle Kraemer 10/10 3743 days true 0.0 0%
Kimberly Skyes 10/10 3743 days true 0.0 0%
Ruth Colmer 9/10 3746 days true 0.0 0%
maleta 8/10 3757 days true 0.0 0%
Simon_and_Jane_OZ 9/10 3950 days 0.0 0%
JoF 10/10 3972 days true 0.0 0%
Christian Kamm 10/10 3977 days true 0.0 0%
Michael Maddams 7/10 3978 days true 0.0 0%
Joanna Harrnon 10/10 3979 days true 0.0 0%
Sarah 8/10 3980 days true 0.0 0%
David 10/10 3980 days 0.0 0%
jjakkeren 9/10 3980 days true 0.0 0%
Alanna 10/10 3982 days true 0.0 0%
ElissaH 10/10 3983 days true 0.0 0%
Andrew Smith 9/10 3986 days true 0.0 0%
Jean 10/10 3997 days true 0.0 0%
CarinaB1 10/10 4001 days true 0.0 0%
Lindsey 9/10 4012 days 0.0 0%
Lisa 10/10 4017 days true 0.0 0%
Laura 8/10 4020 days true 0.0 0%
kiwibrit86 9/10 4022 days 0.0 0%
Visken 10/10 4024 days true 0.0 0%
Christina 10/10 4029 days true 0.0 0%
RachaelO 10/10 4030 days true 0.0 0%
Marianne 10/10 4031 days true 0.0 0%
Peppa 10/10 4031 days true 0.0 0%
Jackie 9/10 4045 days true 0.0 0%
Patrick 9/10 4045 days true 0.0 0%
Carla 8/10 4047 days true 0.0 0%
Keith 10/10 4052 days 0.0 0%
Saskia 9/10 4053 days true 0.0 0%
Patrick 10/10 4057 days true 0.0 0%
Charlie 9/10 4061 days true 0.0 0%
Ten 10/10 4061 days true 0.0 0%
Kevin Dangerfield 10/10 4070 days 0.0 0%
Graham 9/10 4085 days true 0.0 0%
David 10/10 4094 days true 0.0 0%
Eveline 10/10 4094 days true 0.0 0%
Mette 10/10 4101 days true 0.0 0%
Rowan 9/10 4126 days true 0.0 0%
Hanna 10/10 4126 days true 0.0 0%
Sally Walker 10/10 4131 days 0.0 0%
abby 10/10 4137 days true 0.0 0%
Paul 10/10 4148 days true 0.0 0%
Peter 10/10 4156 days true 0.0 0%
Anna 10/10 4178 days true 0.0 0%
Liz 9/10 4187 days true 0.0 0%
Laura 8/10 4187 days true 0.0 0%
Amy Shields 7/10 4191 days true 0.0 0%
Erin 9/10 4199 days true 0.0 0%
George Burgas 7/10 4205 days true 0.0 0%
Sharon Curly 7/10 4213 days true 0.0 0%
Peddy 8/10 4215 days 0.0 0%
Christine 9/10 4229 days true 0.0 0%
Charlie Bond 8/10 4262 days true 0.0 0%
SandyS 10/10 4315 days 0.0 0%
BexStar 10/10 4329 days 0.0 0%
Galen 9/10 4346 days true 0.0 0%
Monica Black 10/10 4346 days true 0.0 0%
Denise 10/10 4363 days true 0.0 0%
Ria 9/10 4367 days true 0.0 0%
Christian 7/10 4367 days true 0.0 0%
Wiebke 9/10 4371 days true 0.0 0%
Phil Connelly 9/10 4372 days true 0.0 0%
Amanda 9/10 4378 days true 0.0 0%
Erwin de Kleijn 9/10 4386 days true 0.0 0%
Nick 10/10 4394 days true 0.0 0%
John 9/10 4394 days true 0.0 0%
Sandra Gustafson 10/10 4422 days true 0.0 0%
Jo 10/10 4422 days true 0.0 0%
Helena 10/10 4423 days true 0.0 0%
Seldam 8/10 4428 days true 0.0 0%
Andrew Purdam 7/10 4436 days 0.0 0%
Gerber Liselotte 10/10 4454 days true 0.0 0%
Gabriela Herger 8/10 4462 days true 0.0 0%
Jane Coleman 8/10 4465 days true 0.0 0%
Wendy Williams 9/10 4472 days true 0.0 0%
Claire 8/10 4696 days true 0.0 0%
Will 9/10 4696 days true 0.0 0%
JanKovar 10/10 4698 days true 0.0 0%
Justin 10/10 4701 days true 0.0 0%
Beth 9/10 4707 days true 0.0 0%
Hanneke 9/10 4708 days true 0.0 0%
Cat 8/10 4710 days true 0.0 0%
MartinTrenker 9/10 4716 days true 0.0 0%
Janneke 10/10 4717 days true 0.0 0%
Renee 9/10 4720 days true 0.0 0%
Elke 8/10 4735 days true 0.0 0%
Malon 10/10 4736 days true 0.0 0%
Ralph 10/10 4745 days true 0.0 0%
Lucy 10/10 4745 days true 0.0 0%
Gordon 8/10 4757 days true 0.0 0%
Beate 9/10 4758 days true 0.0 0%
MartinJago 8/10 4769 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.