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

94.14%

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 1013 days true 6.07 100%
Stefan Zink 10/10 1265 days true 4.67 77%
Fentrup 9/10 1271 days true 4.66 77%
Katharina Koch 10/10 1275 days true 4.65 77%
Aurelie and Ben Marie 9/10 1277 days true 4.64 77%
Sebastian Braun 9/10 1365 days true 4.47 74%
Joanne Woo 10/10 1382 days 4.44 73%
Chris 6/10 1413 days 3.63 60%
Olivier Reculeau 10/10 1599 days true 4.01 66%
Susanne Breudel 10/10 1604 days true 4.0 66%
Josh Legge 10/10 1612 days true 3.99 66%
Daniel Weber 9/10 1614 days true 3.98 66%
Virginia Fradin 10/10 1618 days true 3.98 66%
Olivier Anciaux 9/10 1621 days true 3.97 65%
Wendy van Boom 10/10 1621 days true 3.97 65%
Bas Hoogteijling 10/10 1624 days true 3.96 65%
Mira Huckfield 10/10 1634 days true 3.95 65%
Maike Santelmann 10/10 1646 days true 3.92 65%
Levin Stuers 10/10 1651 days true 3.91 64%
magdalena gomez haedo 9/10 1654 days 3.91 64%
Lucca Weisbender 10/10 1656 days 3.9 64%
Anna Scholten 10/10 1657 days true 3.9 64%
Nils Kissel 10/10 1667 days 3.88 64%
Madita and Lisann 10/10 1703 days true 3.81 63%
sanneke tangel 10/10 1709 days true 3.8 63%
Georgia Coleman 10/10 1709 days true 3.8 63%
Virgil Spruit 8/10 1713 days true 3.6 59%
Xue Rong Kok 7/10 1718 days 3.44 57%
Anthony Jacobs 10/10 1840 days 3.54 58%
Sofie Jebsen 10/10 1983 days true 3.26 54%
Tobias 10/10 1983 days true 3.26 54%
Annika Funk 10/10 2019 days true 3.19 53%
Dawn Mulligan 10/10 2035 days true 3.16 52%
Christophe Scieszka 10/10 2052 days 3.13 52%
Hubert 8/10 2092 days true 2.9 48%
Ondrej Stepanek 8/10 2328 days true 2.46 41%
Boneschova Jarka 10/10 2328 days true 2.59 43%
Heike Heller 10/10 2337 days true 2.57 42%
Andreas Mouteiro 9/10 2337 days true 2.57 42%
Josefin Lind 10/10 2338 days true 2.57 42%
Herman Holmgist 10/10 2338 days true 2.57 42%
Felicitas 9/10 2360 days true 2.52 42%
Antoine 8/10 2368 days true 2.38 39%
Mara K 10/10 2387 days 2.47 41%
Emilie Chanbon 10/10 2390 days true 2.47 41%
Alexis Redor 10/10 2390 days true 2.47 41%
Julia Amberger 8/10 2409 days true 2.31 38%
Annalina Drebald 8/10 2409 days true 2.31 38%
balesdent 9/10 2415 days true 2.42 40%
Alineet Gautier 10/10 2418 days true 2.41 40%
Annika Schmidt 10/10 2698 days true 1.86 31%
Patrick Stoeit 10/10 2698 days true 1.86 31%
Audrey Ripoche 9/10 2700 days true 1.86 31%
Rey Germain 9/10 2700 days true 1.86 31%
Christofer Tonn 10/10 2710 days true 1.84 30%
Ann Furlong 10/10 2718 days true 1.82 30%
Trudy Ryan 8/10 2718 days true 1.73 29%
Jill Fischer 10/10 2724 days 1.81 30%
Kim 10/10 2724 days 1.81 30%
Francois Marchar 9/10 2734 days true 1.79 30%
Jan Zimmerman 10/10 2739 days true 1.78 29%
Elvin Teo 10/10 2752 days 1.76 29%
Rob 9/10 2800 days true 1.66 27%
Andreas Garbin 10/10 2802 days true 1.66 27%
Joanna 9/10 2820 days true 1.62 27%
Mellow 10/10 2844 days 1.58 26%
whalelover88 10/10 2997 days 1.28 21%
Jos Schieveen 8/10 3068 days true 1.08 18%
Goran Backlund 9/10 3074 days true 1.13 19%
Nathan Sait 10/10 3081 days true 1.11 18%
Toby Clark 10/10 3081 days true 1.11 18%
Maxine Gilman 10/10 3084 days true 1.11 18%
Harald 9/10 3098 days true 1.08 18%
Dominik Langenegger 9/10 3100 days true 1.08 18%
Rebecca Richardson 9/10 3100 days true 1.08 18%
Andrew Powell 9/10 3100 days true 1.08 18%
Peter Field 10/10 3100 days true 1.08 18%
Eric Lombaard 8/10 3101 days true 1.02 17%
Nicholas Prakenhammar 10/10 3102 days true 1.07 18%
Peter Wall 7/10 3102 days true 0.98 16%
Verne Heath 8/10 3103 days true 1.02 17%
John O'Donnell 10/10 3104 days true 1.07 18%
Paul Fairbrass 10/10 3111 days true 1.05 17%
Frank Krivauek 10/10 3112 days true 1.05 17%
Rocco Christian 7/10 3112 days true 0.96 16%
Kurt & Noemi Buhler 7/10 3113 days true 0.96 16%
Therese 7/10 3116 days true 0.95 16%
Katie K 9/10 3127 days true 1.02 17%
CMJ 10/10 3149 days 0.98 16%
Jacqueline 10/10 3180 days 0.92 15%
Marc & Pauline 9/10 3186 days true 0.91 15%
Kevin & Chris 9/10 3187 days true 0.91 15%
Robin & Sandra Dijke 9/10 3189 days true 0.9 15%
Laura McCusker 8/10 3196 days true 0.84 14%
Dexter 10/10 3394 days 0.5 8%
Jasmin Loeffler 10/10 3400 days true 0.49 8%
Natascha Rachel 10/10 3400 days true 0.49 8%
Res Kormann 10/10 3413 days true 0.46 8%
Sarah James 10/10 3423 days true 0.44 7%
Nick Taylor 10/10 3423 days true 0.44 7%
Nicola Young 10/10 3423 days true 0.44 7%
Stefan Elsenbruch 9/10 3428 days true 0.43 7%
Stefanie 7/10 3438 days true 0.38 6%
Koen Vanlede 10/10 3441 days true 0.41 7%
Van Vliet 8/10 3442 days true 0.39 6%
Vanessa Vogel 10/10 3445 days true 0.4 7%
Marcel Camsch 9/10 3447 days true 0.4 7%
Keely & Mark Haynes 10/10 3448 days true 0.4 7%
Svea Sauter 10/10 3448 days true 0.4 7%
henriket 10/10 3449 days true 0.39 6%
Amanda Wells 10/10 3449 days true 0.39 6%
K & J Overton 9/10 3449 days true 0.39 6%
Jerry & Floon 9/10 3453 days true 0.39 6%
Bartl 10/10 3453 days true 0.39 6%
travellingfamilyof6 10/10 3455 days 0.38 6%
WeddingMaven 10/10 3455 days 0.38 6%
Lieve Verdonck 8/10 3456 days true 0.36 6%
Victoria Purver 8/10 3458 days true 0.36 6%
Thelia Beament 9/10 3458 days true 0.38 6%
Edwards 9/10 3462 days true 0.37 6%
Mark Irwin 9/10 3466 days true 0.36 6%
Agnes McMillan 10/10 3467 days true 0.36 6%
Leslie 9/10 3467 days true 0.36 6%
Selina Mueller 10/10 3469 days true 0.35 6%
Jill Dean 10/10 3470 days true 0.35 6%
Chloe Finster 10/10 3470 days true 0.35 6%
Vanderhorst 9/10 3471 days true 0.35 6%
Judith K. 10/10 3473 days true 0.35 6%
Amanda Wallace 9/10 3473 days true 0.35 6%
Mark Aarts 10/10 3474 days true 0.34 6%
Forestal Youri 9/10 3475 days true 0.34 6%
Dave and Lin Mungham 10/10 3476 days true 0.34 6%
Jane Hancock 10/10 3478 days true 0.34 6%
Stephi 10/10 3483 days 0.33 5%
Amanda 10/10 3483 days 0.33 5%
Mick Doherty 9/10 3514 days 0.27 4%
hendrik king 7/10 3514 days 0.24 4%
Shoe 10/10 3545 days 0.21 3%
marcvergroesen 9/10 3759 days 0.0 0%
Jenny Leyland 9/10 3759 days 0.0 0%
MarcyMark 10/10 3789 days 0.0 0%
katrina Marshall 10/10 3806 days true 0.0 0%
Von 9/10 3820 days 0.0 0%
Judith 8/10 3826 days true 0.0 0%
Doris Resch 10/10 3826 days true 0.0 0%
Sheila Morgan 10/10 3829 days true 0.0 0%
Maria Newton 9/10 3830 days true 0.0 0%
Faller 10/10 3843 days true 0.0 0%
Wim Van Gastel 8/10 3846 days true 0.0 0%
Laura Walters 9/10 3847 days true 0.0 0%
Chance McGuire 10/10 3848 days 0.0 0%
cees juffermans 9/10 3861 days true 0.0 0%
Markus 10/10 3864 days true 0.0 0%
Grainne Ahern 10/10 3879 days 0.0 0%
sutuckey 10/10 3879 days 0.0 0%
Honeymooners 10/10 3879 days 0.0 0%
sophiep 9/10 3894 days true 0.0 0%
chuckchallenger 10/10 3910 days 0.0 0%
mdarras 9/10 3914 days true 0.0 0%
joramv 9/10 3914 days true 0.0 0%
Michelle Kraemer 10/10 3917 days true 0.0 0%
Kimberly Skyes 10/10 3917 days true 0.0 0%
Ruth Colmer 9/10 3920 days true 0.0 0%
maleta 8/10 3931 days true 0.0 0%
Simon_and_Jane_OZ 9/10 4124 days 0.0 0%
JoF 10/10 4146 days true 0.0 0%
Christian Kamm 10/10 4151 days true 0.0 0%
Michael Maddams 7/10 4152 days true 0.0 0%
Joanna Harrnon 10/10 4153 days true 0.0 0%
Sarah 8/10 4153 days true 0.0 0%
David 10/10 4154 days 0.0 0%
jjakkeren 9/10 4154 days true 0.0 0%
Alanna 10/10 4155 days true 0.0 0%
ElissaH 10/10 4156 days true 0.0 0%
Andrew Smith 9/10 4160 days true 0.0 0%
Jean 10/10 4170 days true 0.0 0%
CarinaB1 10/10 4175 days true 0.0 0%
Lindsey 9/10 4185 days 0.0 0%
Lisa 10/10 4190 days true 0.0 0%
Laura 8/10 4193 days true 0.0 0%
kiwibrit86 9/10 4195 days 0.0 0%
Visken 10/10 4197 days true 0.0 0%
Christina 10/10 4202 days true 0.0 0%
RachaelO 10/10 4204 days true 0.0 0%
Marianne 10/10 4204 days true 0.0 0%
Peppa 10/10 4204 days true 0.0 0%
Jackie 9/10 4218 days true 0.0 0%
Patrick 9/10 4218 days true 0.0 0%
Carla 8/10 4220 days true 0.0 0%
Keith 10/10 4225 days 0.0 0%
Saskia 9/10 4226 days true 0.0 0%
Patrick 10/10 4230 days true 0.0 0%
Charlie 9/10 4234 days true 0.0 0%
Ten 10/10 4234 days true 0.0 0%
Kevin Dangerfield 10/10 4243 days 0.0 0%
Graham 9/10 4258 days true 0.0 0%
David 10/10 4267 days true 0.0 0%
Eveline 10/10 4267 days true 0.0 0%
Mette 10/10 4274 days true 0.0 0%
Rowan 9/10 4299 days true 0.0 0%
Hanna 10/10 4299 days true 0.0 0%
Sally Walker 10/10 4305 days 0.0 0%
abby 10/10 4310 days true 0.0 0%
Paul 10/10 4321 days true 0.0 0%
Peter 10/10 4329 days true 0.0 0%
Anna 10/10 4351 days true 0.0 0%
Liz 9/10 4360 days true 0.0 0%
Laura 8/10 4360 days true 0.0 0%
Amy Shields 7/10 4364 days true 0.0 0%
Erin 9/10 4372 days true 0.0 0%
George Burgas 7/10 4378 days true 0.0 0%
Sharon Curly 7/10 4386 days true 0.0 0%
Peddy 8/10 4389 days 0.0 0%
Christine 9/10 4402 days true 0.0 0%
Charlie Bond 8/10 4435 days true 0.0 0%
SandyS 10/10 4489 days 0.0 0%
BexStar 10/10 4502 days 0.0 0%
Galen 9/10 4520 days true 0.0 0%
Monica Black 10/10 4520 days true 0.0 0%
Denise 10/10 4537 days true 0.0 0%
Ria 9/10 4541 days true 0.0 0%
Christian 7/10 4541 days true 0.0 0%
Wiebke 9/10 4545 days true 0.0 0%
Phil Connelly 9/10 4546 days true 0.0 0%
Amanda 9/10 4552 days true 0.0 0%
Erwin de Kleijn 9/10 4559 days true 0.0 0%
Nick 10/10 4568 days true 0.0 0%
John 9/10 4568 days true 0.0 0%
Sandra Gustafson 10/10 4596 days true 0.0 0%
Jo 10/10 4596 days true 0.0 0%
Helena 10/10 4597 days true 0.0 0%
Seldam 8/10 4602 days true 0.0 0%
Andrew Purdam 7/10 4610 days 0.0 0%
Gerber Liselotte 10/10 4628 days true 0.0 0%
Gabriela Herger 8/10 4636 days true 0.0 0%
Jane Coleman 8/10 4639 days true 0.0 0%
Wendy Williams 9/10 4646 days true 0.0 0%
Claire 8/10 4870 days true 0.0 0%
Will 9/10 4870 days true 0.0 0%
JanKovar 10/10 4872 days true 0.0 0%
Justin 10/10 4875 days true 0.0 0%
Beth 9/10 4881 days true 0.0 0%
Hanneke 9/10 4882 days true 0.0 0%
Cat 8/10 4884 days true 0.0 0%
MartinTrenker 9/10 4890 days true 0.0 0%
Janneke 10/10 4891 days true 0.0 0%
Renee 9/10 4894 days true 0.0 0%
Elke 8/10 4909 days true 0.0 0%
Malon 10/10 4910 days true 0.0 0%
Ralph 10/10 4919 days true 0.0 0%
Lucy 10/10 4919 days true 0.0 0%
Gordon 8/10 4931 days true 0.0 0%
Beate 9/10 4932 days true 0.0 0%
MartinJago 8/10 4943 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

-2.31% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 113 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Dolphin Encounter Kaikoura experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -2.28%
198 -2.29%
199 -2.30%
200 -2.31%
201 -2.32%
202 -2.33%
203 -2.35%

Final Ranking Score

92%

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.