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

93.76%

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
Michael Holm 9/10 1411 days 100%
Stefan Zink 10/10 1663 days 88%
Fentrup 9/10 1669 days 88%
Katharina Koch 10/10 1673 days 88%
Aurelie and Ben Marie 9/10 1675 days 88%
Sebastian Braun 9/10 1763 days 84%
Joanne Woo 10/10 1780 days 83%
Chris 6/10 1811 days 67%
Olivier Reculeau 10/10 1997 days 73%
Susanne Breudel 10/10 2002 days 73%
Josh Legge 10/10 2010 days 73%
Daniel Weber 9/10 2012 days 73%
Virginia Fradin 10/10 2016 days 72%
Olivier Anciaux 9/10 2019 days 72%
Wendy van Boom 10/10 2019 days 72%
Bas Hoogteijling 10/10 2022 days 72%
Mira Huckfield 10/10 2032 days 72%
Maike Santelmann 10/10 2044 days 71%
Levin Stuers 10/10 2049 days 71%
magdalena gomez haedo 9/10 2052 days 71%
Lucca Weisbender 10/10 2054 days 71%
Anna Scholten 10/10 2055 days 71%
Nils Kissel 10/10 2065 days 70%
Madita and Lisann 10/10 2101 days 68%
sanneke tangel 10/10 2107 days 68%
Georgia Coleman 10/10 2107 days 68%
Virgil Spruit 8/10 2111 days 64%
Xue Rong Kok 7/10 2116 days 61%
Anthony Jacobs 10/10 2238 days 62%
Sofie Jebsen 10/10 2381 days 56%
Tobias 10/10 2381 days 56%
Annika Funk 10/10 2417 days 54%
Dawn Mulligan 10/10 2433 days 53%
Christophe Scieszka 10/10 2450 days 52%
Hubert 8/10 2490 days 48%
Ondrej Stepanek 8/10 2726 days 38%
Boneschova Jarka 10/10 2726 days 40%
Heike Heller 10/10 2735 days 39%
Andreas Mouteiro 9/10 2735 days 39%
Josefin Lind 10/10 2736 days 39%
Herman Holmgist 10/10 2736 days 39%
Felicitas 9/10 2758 days 38%
Antoine 8/10 2766 days 36%
Mara K 10/10 2785 days 37%
Emilie Chanbon 10/10 2788 days 37%
Alexis Redor 10/10 2788 days 37%
Julia Amberger 8/10 2807 days 34%
Annalina Drebald 8/10 2807 days 34%
balesdent 9/10 2813 days 36%
Alineet Gautier 10/10 2816 days 36%
Annika Schmidt 10/10 3096 days 23%
Patrick Stoeit 10/10 3096 days 23%
Audrey Ripoche 9/10 3098 days 23%
Rey Germain 9/10 3098 days 23%
Christofer Tonn 10/10 3108 days 22%
Ann Furlong 10/10 3116 days 22%
Trudy Ryan 8/10 3116 days 21%
Jill Fischer 10/10 3122 days 22%
Kim 10/10 3122 days 22%
Francois Marchar 9/10 3132 days 21%
Jan Zimmerman 10/10 3137 days 21%
Elvin Teo 10/10 3150 days 20%
Rob 9/10 3198 days 18%
Andreas Garbin 10/10 3200 days 18%
Joanna 9/10 3218 days 17%
Mellow 10/10 3242 days 16%
whalelover88 10/10 3395 days 9%
Jos Schieveen 8/10 3466 days 6%
Goran Backlund 9/10 3472 days 6%
Nathan Sait 10/10 3479 days 5%
Toby Clark 10/10 3479 days 5%
Maxine Gilman 10/10 3482 days 5%
Harald 9/10 3496 days 5%
Dominik Langenegger 9/10 3498 days 5%
Rebecca Richardson 9/10 3498 days 5%
Andrew Powell 9/10 3498 days 5%
Peter Field 10/10 3498 days 5%
Eric Lombaard 8/10 3499 days 4%
Nicholas Prakenhammar 10/10 3500 days 4%
Peter Wall 7/10 3500 days 4%
Verne Heath 8/10 3501 days 4%
John O'Donnell 10/10 3502 days 4%
Paul Fairbrass 10/10 3509 days 4%
Frank Krivauek 10/10 3510 days 4%
Rocco Christian 7/10 3510 days 3%
Kurt & Noemi Buhler 7/10 3511 days 3%
Therese 7/10 3514 days 3%
Katie K 9/10 3525 days 3%
CMJ 10/10 3547 days 2%
Jacqueline 10/10 3578 days 1%
Marc & Pauline 9/10 3584 days 1%
Kevin & Chris 9/10 3585 days 1%
Robin & Sandra Dijke 9/10 3587 days 0%
Laura McCusker 8/10 3594 days 0%
Dexter 10/10 3792 days 21%
Jasmin Loeffler 10/10 3798 days 21%
Natascha Rachel 10/10 3798 days 21%
Res Kormann 10/10 3811 days 21%
Sarah James 10/10 3821 days 21%
Nick Taylor 10/10 3821 days 21%
Nicola Young 10/10 3821 days 21%
Stefan Elsenbruch 9/10 3826 days 21%
Stefanie 7/10 3836 days 19%
Koen Vanlede 10/10 3839 days 21%
Van Vliet 8/10 3840 days 20%
Vanessa Vogel 10/10 3843 days 21%
Marcel Camsch 9/10 3845 days 21%
Keely & Mark Haynes 10/10 3846 days 21%
Svea Sauter 10/10 3846 days 21%
henriket 10/10 3847 days 21%
Amanda Wells 10/10 3847 days 21%
K & J Overton 9/10 3847 days 21%
Jerry & Floon 9/10 3851 days 21%
Bartl 10/10 3851 days 21%
travellingfamilyof6 10/10 3853 days 21%
WeddingMaven 10/10 3853 days 21%
Lieve Verdonck 8/10 3854 days 20%
Victoria Purver 8/10 3856 days 20%
Thelia Beament 9/10 3856 days 21%
Edwards 9/10 3860 days 21%
Mark Irwin 9/10 3864 days 21%
Agnes McMillan 10/10 3865 days 21%
Leslie 9/10 3865 days 21%
Selina Mueller 10/10 3867 days 21%
Jill Dean 10/10 3868 days 21%
Chloe Finster 10/10 3868 days 21%
Vanderhorst 9/10 3869 days 21%
Judith K. 10/10 3871 days 21%
Amanda Wallace 9/10 3871 days 21%
Mark Aarts 10/10 3872 days 21%
Forestal Youri 9/10 3873 days 21%
Dave and Lin Mungham 10/10 3874 days 21%
Jane Hancock 10/10 3876 days 21%
Stephi 10/10 3881 days 21%
Amanda 10/10 3881 days 21%
Mick Doherty 9/10 3912 days 21%
hendrik king 7/10 3912 days 19%
Shoe 10/10 3943 days 21%
marcvergroesen 9/10 4157 days 21%
Jenny Leyland 9/10 4157 days 21%
MarcyMark 10/10 4187 days 21%
katrina Marshall 10/10 4204 days 21%
Von 9/10 4218 days 21%
Judith 8/10 4224 days 20%
Doris Resch 10/10 4224 days 21%
Sheila Morgan 10/10 4227 days 21%
Maria Newton 9/10 4228 days 21%
Faller 10/10 4241 days 21%
Wim Van Gastel 8/10 4244 days 20%
Laura Walters 9/10 4245 days 21%
Chance McGuire 10/10 4246 days 21%
cees juffermans 9/10 4259 days 21%
Markus 10/10 4262 days 21%
Grainne Ahern 10/10 4277 days 21%
sutuckey 10/10 4277 days 21%
Honeymooners 10/10 4277 days 21%
sophiep 9/10 4292 days 21%
chuckchallenger 10/10 4308 days 21%
mdarras 9/10 4312 days 21%
joramv 9/10 4312 days 21%
Michelle Kraemer 10/10 4315 days 21%
Kimberly Skyes 10/10 4315 days 21%
Ruth Colmer 9/10 4318 days 21%
maleta 8/10 4329 days 20%
Simon_and_Jane_OZ 9/10 4522 days 21%
JoF 10/10 4544 days 21%
Christian Kamm 10/10 4549 days 21%
Michael Maddams 7/10 4550 days 19%
Joanna Harrnon 10/10 4551 days 21%
Sarah 8/10 4551 days 20%
David 10/10 4552 days 21%
jjakkeren 9/10 4552 days 21%
Alanna 10/10 4553 days 21%
ElissaH 10/10 4554 days 21%
Andrew Smith 9/10 4558 days 21%
Jean 10/10 4568 days 21%
CarinaB1 10/10 4573 days 21%
Lindsey 9/10 4583 days 21%
Lisa 10/10 4588 days 21%
Laura 8/10 4591 days 20%
kiwibrit86 9/10 4594 days 21%
Visken 10/10 4595 days 21%
Christina 10/10 4600 days 21%
RachaelO 10/10 4602 days 21%
Marianne 10/10 4602 days 21%
Peppa 10/10 4602 days 21%
Jackie 9/10 4616 days 21%
Patrick 9/10 4616 days 21%
Carla 8/10 4618 days 20%
Keith 10/10 4624 days 21%
Saskia 9/10 4624 days 21%
Patrick 10/10 4628 days 21%
Charlie 9/10 4632 days 21%
Ten 10/10 4632 days 21%
Kevin Dangerfield 10/10 4641 days 21%
Graham 9/10 4656 days 21%
David 10/10 4665 days 21%
Eveline 10/10 4665 days 21%
Mette 10/10 4672 days 21%
Rowan 9/10 4697 days 21%
Hanna 10/10 4697 days 21%
Sally Walker 10/10 4703 days 21%
abby 10/10 4709 days 21%
Paul 10/10 4719 days 21%
Peter 10/10 4727 days 21%
Anna 10/10 4749 days 21%
Liz 9/10 4758 days 21%
Laura 8/10 4758 days 20%
Amy Shields 7/10 4762 days 19%
Erin 9/10 4770 days 21%
George Burgas 7/10 4776 days 19%
Sharon Curly 7/10 4784 days 19%
Peddy 8/10 4787 days 20%
Christine 9/10 4800 days 21%
Charlie Bond 8/10 4833 days 20%
SandyS 10/10 4887 days 21%
BexStar 10/10 4901 days 21%
Galen 9/10 4918 days 21%
Monica Black 10/10 4918 days 21%
Denise 10/10 4935 days 21%
Ria 9/10 4939 days 21%
Christian 7/10 4939 days 19%
Wiebke 9/10 4943 days 21%
Phil Connelly 9/10 4944 days 21%
Amanda 9/10 4950 days 21%
Erwin de Kleijn 9/10 4957 days 21%
Nick 10/10 4966 days 21%
John 9/10 4966 days 21%
Sandra Gustafson 10/10 4994 days 21%
Jo 10/10 4994 days 21%
Helena 10/10 4995 days 21%
Seldam 8/10 5000 days 20%
Andrew Purdam 7/10 5008 days 19%
Gerber Liselotte 10/10 5026 days 21%
Gabriela Herger 8/10 5034 days 20%
Jane Coleman 8/10 5037 days 20%
Wendy Williams 9/10 5044 days 21%
Claire 8/10 5268 days 20%
Will 9/10 5268 days 21%
JanKovar 10/10 5270 days 21%
Justin 10/10 5273 days 21%
Beth 9/10 5279 days 21%
Hanneke 9/10 5280 days 21%
Cat 8/10 5282 days 20%
MartinTrenker 9/10 5288 days 21%
Janneke 10/10 5289 days 21%
Renee 9/10 5292 days 21%
Elke 8/10 5307 days 20%
Malon 10/10 5308 days 21%
Ralph 10/10 5317 days 21%
Lucy 10/10 5317 days 21%
Gordon 8/10 5329 days 20%
Beate 9/10 5330 days 21%
MartinJago 8/10 5341 days 20%

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

-2.96% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 77 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 -2.92%
198 -2.93%
199 -2.95%
200 -2.96%
201 -2.98%
202 -2.99%
203 -3.01%

Final Ranking Score

91%

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.