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

93.86%

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 9/10 742 days true 24.75 100%
Stefan Zink 10/10 994 days true 6.62 27%
Fentrup 9/10 1000 days true 6.43 26%
Katharina Koch 10/10 1004 days true 6.31 26%
Aurelie and Ben Marie 9/10 1006 days true 6.26 25%
Sebastian Braun 9/10 1094 days true 5.0 20%
Joanne Woo 10/10 1111 days 4.97 20%
Chris 6/10 1142 days 4.07 16%
Olivier Reculeau 10/10 1328 days true 4.54 18%
Susanne Breudel 10/10 1333 days true 4.53 18%
Josh Legge 10/10 1341 days true 4.52 18%
Daniel Weber 9/10 1343 days true 4.51 18%
Virginia Fradin 10/10 1347 days true 4.51 18%
Olivier Anciaux 9/10 1350 days true 4.5 18%
Wendy van Boom 10/10 1350 days true 4.5 18%
Bas Hoogteijling 10/10 1353 days true 4.5 18%
Mira Huckfield 10/10 1363 days true 4.48 18%
Maike Santelmann 10/10 1375 days true 4.45 18%
Levin Stuers 10/10 1380 days true 4.44 18%
magdalena gomez haedo 9/10 1383 days 4.44 18%
Lucca Weisbender 10/10 1385 days 4.43 18%
Anna Scholten 10/10 1386 days true 4.43 18%
Nils Kissel 10/10 1396 days 4.41 18%
Madita and Lisann 10/10 1432 days true 4.34 18%
sanneke tangel 10/10 1438 days true 4.33 17%
Georgia Coleman 10/10 1438 days true 4.33 17%
Virgil Spruit 8/10 1442 days true 4.1 17%
Xue Rong Kok 7/10 1447 days 3.92 16%
Anthony Jacobs 10/10 1569 days 4.07 16%
Sofie Jebsen 10/10 1712 days true 3.79 15%
Tobias 10/10 1712 days true 3.79 15%
Annika Funk 10/10 1748 days true 3.72 15%
Dawn Mulligan 10/10 1764 days true 3.69 15%
Christophe Scieszka 10/10 1781 days 3.66 15%
Hubert 8/10 1821 days true 3.4 14%
Ondrej Stepanek 8/10 2057 days true 2.96 12%
Boneschova Jarka 10/10 2057 days true 3.12 13%
Heike Heller 10/10 2066 days true 3.1 13%
Andreas Mouteiro 9/10 2066 days true 3.1 13%
Josefin Lind 10/10 2067 days true 3.1 13%
Herman Holmgist 10/10 2067 days true 3.1 13%
Felicitas 9/10 2089 days true 3.05 12%
Antoine 8/10 2097 days true 2.89 12%
Mara K 10/10 2116 days 3.0 12%
Emilie Chanbon 10/10 2119 days true 3.0 12%
Alexis Redor 10/10 2119 days true 3.0 12%
Julia Amberger 8/10 2138 days true 2.81 11%
Annalina Drebald 8/10 2138 days true 2.81 11%
balesdent 9/10 2144 days true 2.95 12%
Alineet Gautier 10/10 2147 days true 2.94 12%
Annika Schmidt 10/10 2427 days true 2.39 10%
Patrick Stoeit 10/10 2427 days true 2.39 10%
Audrey Ripoche 9/10 2429 days true 2.39 10%
Rey Germain 9/10 2429 days true 2.39 10%
Christofer Tonn 10/10 2439 days true 2.37 10%
Ann Furlong 10/10 2447 days true 2.35 10%
Trudy Ryan 8/10 2447 days true 2.24 9%
Jill Fischer 10/10 2453 days 2.34 9%
Kim 10/10 2453 days 2.34 9%
Francois Marchar 9/10 2463 days true 2.32 9%
Jan Zimmerman 10/10 2468 days true 2.31 9%
Elvin Teo 10/10 2481 days 2.29 9%
Rob 9/10 2529 days true 2.19 9%
Andreas Garbin 10/10 2531 days true 2.19 9%
Joanna 9/10 2549 days true 2.15 9%
Mellow 10/10 2573 days 2.11 9%
whalelover88 10/10 2726 days 1.81 7%
Jos Schieveen 8/10 2797 days true 1.59 6%
Goran Backlund 9/10 2803 days true 1.66 7%
Nathan Sait 10/10 2810 days true 1.64 7%
Toby Clark 10/10 2810 days true 1.64 7%
Maxine Gilman 10/10 2813 days true 1.64 7%
Harald 9/10 2827 days true 1.61 7%
Dominik Langenegger 9/10 2829 days true 1.61 6%
Rebecca Richardson 9/10 2829 days true 1.61 6%
Andrew Powell 9/10 2829 days true 1.61 6%
Peter Field 10/10 2829 days true 1.61 6%
Eric Lombaard 8/10 2830 days true 1.52 6%
Nicholas Prakenhammar 10/10 2831 days true 1.6 6%
Peter Wall 7/10 2831 days true 1.46 6%
Verne Heath 8/10 2832 days true 1.52 6%
John O'Donnell 10/10 2833 days true 1.6 6%
Paul Fairbrass 10/10 2840 days true 1.59 6%
Frank Krivauek 10/10 2841 days true 1.58 6%
Rocco Christian 7/10 2841 days true 1.44 6%
Kurt & Noemi Buhler 7/10 2842 days true 1.44 6%
Therese 7/10 2845 days true 1.43 6%
Katie K 9/10 2856 days true 1.55 6%
CMJ 10/10 2878 days 1.51 6%
Jacqueline 10/10 2909 days 1.45 6%
Marc & Pauline 9/10 2915 days true 1.44 6%
Kevin & Chris 9/10 2916 days true 1.44 6%
Robin & Sandra Dijke 9/10 2918 days true 1.43 6%
Laura McCusker 8/10 2925 days true 1.35 5%
Dexter 10/10 3123 days 1.03 4%
Jasmin Loeffler 10/10 3129 days true 1.02 4%
Natascha Rachel 10/10 3129 days true 1.02 4%
Res Kormann 10/10 3142 days true 0.99 4%
Sarah James 10/10 3152 days true 0.97 4%
Nick Taylor 10/10 3152 days true 0.97 4%
Nicola Young 10/10 3152 days true 0.97 4%
Stefan Elsenbruch 9/10 3157 days true 0.96 4%
Stefanie 7/10 3167 days true 0.86 3%
Koen Vanlede 10/10 3170 days true 0.94 4%
Van Vliet 8/10 3171 days true 0.89 4%
Vanessa Vogel 10/10 3174 days true 0.93 4%
Marcel Camsch 9/10 3176 days true 0.93 4%
Keely & Mark Haynes 10/10 3177 days true 0.93 4%
Svea Sauter 10/10 3177 days true 0.93 4%
henriket 10/10 3178 days true 0.92 4%
Amanda Wells 10/10 3178 days true 0.92 4%
K & J Overton 9/10 3178 days true 0.92 4%
Jerry & Floon 9/10 3182 days true 0.92 4%
Bartl 10/10 3182 days true 0.92 4%
travellingfamilyof6 10/10 3184 days 0.91 4%
WeddingMaven 10/10 3184 days 0.91 4%
Lieve Verdonck 8/10 3185 days true 0.86 3%
Victoria Purver 8/10 3187 days true 0.86 3%
Thelia Beament 9/10 3187 days true 0.91 4%
Edwards 9/10 3191 days true 0.9 4%
Mark Irwin 9/10 3195 days true 0.89 4%
Agnes McMillan 10/10 3196 days true 0.89 4%
Leslie 9/10 3196 days true 0.89 4%
Selina Mueller 10/10 3198 days true 0.88 4%
Jill Dean 10/10 3199 days true 0.88 4%
Chloe Finster 10/10 3199 days true 0.88 4%
Vanderhorst 9/10 3200 days true 0.88 4%
Judith K. 10/10 3202 days true 0.88 4%
Amanda Wallace 9/10 3202 days true 0.88 4%
Mark Aarts 10/10 3203 days true 0.87 4%
Forestal Youri 9/10 3204 days true 0.87 4%
Dave and Lin Mungham 10/10 3205 days true 0.87 4%
Jane Hancock 10/10 3207 days true 0.87 4%
Stephi 10/10 3212 days 0.86 3%
Amanda 10/10 3212 days 0.86 3%
Mick Doherty 9/10 3243 days 0.8 3%
hendrik king 7/10 3243 days 0.72 3%
Shoe 10/10 3274 days 0.74 3%
marcvergroesen 9/10 3488 days 0.32 1%
Jenny Leyland 9/10 3488 days 0.32 1%
MarcyMark 10/10 3518 days 0.26 1%
katrina Marshall 10/10 3535 days true 0.23 1%
Von 9/10 3549 days 0.2 1%
Judith 8/10 3555 days true 0.18 1%
Doris Resch 10/10 3555 days true 0.19 1%
Sheila Morgan 10/10 3558 days true 0.18 1%
Maria Newton 9/10 3559 days true 0.18 1%
Faller 10/10 3572 days true 0.15 1%
Wim Van Gastel 8/10 3575 days true 0.14 1%
Laura Walters 9/10 3576 days true 0.14 1%
Chance McGuire 10/10 3577 days 0.14 1%
cees juffermans 9/10 3590 days true 0.12 0%
Markus 10/10 3593 days true 0.11 0%
Grainne Ahern 10/10 3608 days 0.08 0%
sutuckey 10/10 3608 days 0.08 0%
Honeymooners 10/10 3608 days 0.08 0%
sophiep 9/10 3623 days true 0.05 0%
chuckchallenger 10/10 3639 days 0.02 0%
mdarras 9/10 3643 days true 0.01 0%
joramv 9/10 3643 days true 0.01 0%
Michelle Kraemer 10/10 3646 days true 0.01 0%
Kimberly Skyes 10/10 3646 days true 0.01 0%
Ruth Colmer 9/10 3649 days true 0.0 0%
maleta 8/10 3660 days true 0.0 0%
Simon_and_Jane_OZ 9/10 3853 days 0.0 0%
JoF 10/10 3875 days true 0.0 0%
Christian Kamm 10/10 3880 days true 0.0 0%
Michael Maddams 7/10 3881 days true 0.0 0%
Joanna Harrnon 10/10 3882 days true 0.0 0%
Sarah 8/10 3882 days true 0.0 0%
David 10/10 3883 days 0.0 0%
jjakkeren 9/10 3883 days true 0.0 0%
Alanna 10/10 3884 days true 0.0 0%
ElissaH 10/10 3885 days true 0.0 0%
Andrew Smith 9/10 3889 days true 0.0 0%
Jean 10/10 3899 days true 0.0 0%
CarinaB1 10/10 3904 days true 0.0 0%
Lindsey 9/10 3914 days 0.0 0%
Lisa 10/10 3919 days true 0.0 0%
Laura 8/10 3922 days true 0.0 0%
kiwibrit86 9/10 3924 days 0.0 0%
Visken 10/10 3926 days true 0.0 0%
Christina 10/10 3931 days true 0.0 0%
RachaelO 10/10 3933 days true 0.0 0%
Marianne 10/10 3933 days true 0.0 0%
Peppa 10/10 3933 days true 0.0 0%
Jackie 9/10 3947 days true 0.0 0%
Patrick 9/10 3947 days true 0.0 0%
Carla 8/10 3949 days true 0.0 0%
Keith 10/10 3955 days 0.0 0%
Saskia 9/10 3955 days true 0.0 0%
Patrick 10/10 3959 days true 0.0 0%
Charlie 9/10 3963 days true 0.0 0%
Ten 10/10 3963 days true 0.0 0%
Kevin Dangerfield 10/10 3972 days 0.0 0%
Graham 9/10 3987 days true 0.0 0%
David 10/10 3996 days true 0.0 0%
Eveline 10/10 3996 days true 0.0 0%
Mette 10/10 4003 days true 0.0 0%
Rowan 9/10 4028 days true 0.0 0%
Hanna 10/10 4028 days true 0.0 0%
Sally Walker 10/10 4034 days 0.0 0%
abby 10/10 4040 days true 0.0 0%
Paul 10/10 4050 days true 0.0 0%
Peter 10/10 4058 days true 0.0 0%
Anna 10/10 4080 days true 0.0 0%
Liz 9/10 4089 days true 0.0 0%
Laura 8/10 4089 days true 0.0 0%
Amy Shields 7/10 4093 days true 0.0 0%
Erin 9/10 4101 days true 0.0 0%
George Burgas 7/10 4107 days true 0.0 0%
Sharon Curly 7/10 4115 days true 0.0 0%
Peddy 8/10 4118 days 0.0 0%
Christine 9/10 4131 days true 0.0 0%
Charlie Bond 8/10 4164 days true 0.0 0%
SandyS 10/10 4218 days 0.0 0%
BexStar 10/10 4231 days 0.0 0%
Galen 9/10 4249 days true 0.0 0%
Monica Black 10/10 4249 days true 0.0 0%
Denise 10/10 4266 days true 0.0 0%
Ria 9/10 4270 days true 0.0 0%
Christian 7/10 4270 days true 0.0 0%
Wiebke 9/10 4274 days true 0.0 0%
Phil Connelly 9/10 4275 days true 0.0 0%
Amanda 9/10 4281 days true 0.0 0%
Erwin de Kleijn 9/10 4288 days true 0.0 0%
Nick 10/10 4297 days true 0.0 0%
John 9/10 4297 days true 0.0 0%
Sandra Gustafson 10/10 4325 days true 0.0 0%
Jo 10/10 4325 days true 0.0 0%
Helena 10/10 4326 days true 0.0 0%
Seldam 8/10 4331 days true 0.0 0%
Andrew Purdam 7/10 4339 days 0.0 0%
Gerber Liselotte 10/10 4357 days true 0.0 0%
Gabriela Herger 8/10 4365 days true 0.0 0%
Jane Coleman 8/10 4368 days true 0.0 0%
Wendy Williams 9/10 4375 days true 0.0 0%
Claire 8/10 4599 days true 0.0 0%
Will 9/10 4599 days true 0.0 0%
JanKovar 10/10 4601 days true 0.0 0%
Justin 10/10 4604 days true 0.0 0%
Beth 9/10 4610 days true 0.0 0%
Hanneke 9/10 4611 days true 0.0 0%
Cat 8/10 4613 days true 0.0 0%
MartinTrenker 9/10 4619 days true 0.0 0%
Janneke 10/10 4620 days true 0.0 0%
Renee 9/10 4623 days true 0.0 0%
Elke 8/10 4638 days true 0.0 0%
Malon 10/10 4639 days true 0.0 0%
Ralph 10/10 4648 days true 0.0 0%
Lucy 10/10 4648 days true 0.0 0%
Gordon 8/10 4660 days true 0.0 0%
Beate 9/10 4661 days true 0.0 0%
MartinJago 8/10 4672 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.