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

93.62%

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 1211 days 100%
Stefan Zink 10/10 1463 days 90%
Fentrup 9/10 1469 days 89%
Katharina Koch 10/10 1473 days 89%
Aurelie and Ben Marie 9/10 1475 days 89%
Sebastian Braun 9/10 1563 days 86%
Joanne Woo 10/10 1581 days 85%
Chris 6/10 1612 days 69%
Olivier Reculeau 10/10 1797 days 76%
Susanne Breudel 10/10 1802 days 76%
Josh Legge 10/10 1810 days 75%
Daniel Weber 9/10 1812 days 75%
Virginia Fradin 10/10 1816 days 75%
Olivier Anciaux 9/10 1819 days 75%
Wendy van Boom 10/10 1819 days 75%
Bas Hoogteijling 10/10 1822 days 75%
Mira Huckfield 10/10 1832 days 75%
Maike Santelmann 10/10 1844 days 74%
Levin Stuers 10/10 1849 days 74%
magdalena gomez haedo 9/10 1852 days 74%
Lucca Weisbender 10/10 1855 days 74%
Anna Scholten 10/10 1855 days 74%
Nils Kissel 10/10 1865 days 73%
Madita and Lisann 10/10 1901 days 72%
sanneke tangel 10/10 1907 days 71%
Georgia Coleman 10/10 1907 days 71%
Virgil Spruit 8/10 1911 days 68%
Xue Rong Kok 7/10 1917 days 65%
Anthony Jacobs 10/10 2039 days 66%
Sofie Jebsen 10/10 2181 days 60%
Tobias 10/10 2181 days 60%
Annika Funk 10/10 2217 days 59%
Dawn Mulligan 10/10 2233 days 58%
Christophe Scieszka 10/10 2251 days 57%
Hubert 8/10 2290 days 53%
Ondrej Stepanek 8/10 2526 days 44%
Boneschova Jarka 10/10 2526 days 46%
Heike Heller 10/10 2535 days 46%
Andreas Mouteiro 9/10 2535 days 46%
Josefin Lind 10/10 2536 days 46%
Herman Holmgist 10/10 2536 days 46%
Felicitas 9/10 2558 days 45%
Antoine 8/10 2566 days 42%
Mara K 10/10 2585 days 44%
Emilie Chanbon 10/10 2588 days 43%
Alexis Redor 10/10 2588 days 43%
Julia Amberger 8/10 2607 days 41%
Annalina Drebald 8/10 2607 days 41%
balesdent 9/10 2613 days 42%
Alineet Gautier 10/10 2616 days 42%
Annika Schmidt 10/10 2896 days 31%
Patrick Stoeit 10/10 2896 days 31%
Audrey Ripoche 9/10 2898 days 31%
Rey Germain 9/10 2898 days 31%
Christofer Tonn 10/10 2908 days 30%
Ann Furlong 10/10 2916 days 30%
Trudy Ryan 8/10 2916 days 29%
Jill Fischer 10/10 2922 days 30%
Kim 10/10 2922 days 30%
Francois Marchar 9/10 2932 days 29%
Jan Zimmerman 10/10 2937 days 29%
Elvin Teo 10/10 2950 days 29%
Rob 9/10 2998 days 27%
Andreas Garbin 10/10 3000 days 27%
Joanna 9/10 3018 days 26%
Mellow 10/10 3042 days 25%
whalelover88 10/10 3195 days 19%
Jos Schieveen 8/10 3266 days 15%
Goran Backlund 9/10 3272 days 15%
Nathan Sait 10/10 3279 days 15%
Toby Clark 10/10 3279 days 15%
Maxine Gilman 10/10 3282 days 15%
Harald 9/10 3296 days 14%
Dominik Langenegger 9/10 3298 days 14%
Rebecca Richardson 9/10 3298 days 14%
Andrew Powell 9/10 3298 days 14%
Peter Field 10/10 3298 days 14%
Eric Lombaard 8/10 3299 days 14%
Nicholas Prakenhammar 10/10 3300 days 14%
Peter Wall 7/10 3300 days 13%
Verne Heath 8/10 3301 days 13%
John O'Donnell 10/10 3302 days 14%
Paul Fairbrass 10/10 3309 days 14%
Frank Krivauek 10/10 3310 days 14%
Rocco Christian 7/10 3310 days 13%
Kurt & Noemi Buhler 7/10 3311 days 13%
Therese 7/10 3314 days 12%
Katie K 9/10 3325 days 13%
CMJ 10/10 3347 days 12%
Jacqueline 10/10 3378 days 11%
Marc & Pauline 9/10 3384 days 11%
Kevin & Chris 9/10 3385 days 11%
Robin & Sandra Dijke 9/10 3387 days 11%
Laura McCusker 8/10 3394 days 10%
Dexter 10/10 3592 days 2%
Jasmin Loeffler 10/10 3598 days 2%
Natascha Rachel 10/10 3598 days 2%
Res Kormann 10/10 3611 days 1%
Sarah James 10/10 3621 days 1%
Nick Taylor 10/10 3621 days 1%
Nicola Young 10/10 3621 days 1%
Stefan Elsenbruch 9/10 3626 days 1%
Stefanie 7/10 3636 days 0%
Koen Vanlede 10/10 3639 days 0%
Van Vliet 8/10 3640 days 0%
Vanessa Vogel 10/10 3643 days 0%
Marcel Camsch 9/10 3645 days 0%
Keely & Mark Haynes 10/10 3646 days 0%
Svea Sauter 10/10 3646 days 0%
henriket 10/10 3647 days 0%
Amanda Wells 10/10 3647 days 0%
K & J Overton 9/10 3647 days 0%
Jerry & Floon 9/10 3651 days 21%
Bartl 10/10 3651 days 21%
travellingfamilyof6 10/10 3653 days 21%
WeddingMaven 10/10 3653 days 21%
Lieve Verdonck 8/10 3654 days 20%
Victoria Purver 8/10 3656 days 20%
Thelia Beament 9/10 3656 days 21%
Edwards 9/10 3660 days 21%
Mark Irwin 9/10 3664 days 21%
Agnes McMillan 10/10 3665 days 21%
Leslie 9/10 3665 days 21%
Selina Mueller 10/10 3667 days 21%
Jill Dean 10/10 3668 days 21%
Chloe Finster 10/10 3668 days 21%
Vanderhorst 9/10 3669 days 21%
Judith K. 10/10 3671 days 21%
Amanda Wallace 9/10 3671 days 21%
Mark Aarts 10/10 3672 days 21%
Forestal Youri 9/10 3673 days 21%
Dave and Lin Mungham 10/10 3674 days 21%
Jane Hancock 10/10 3676 days 21%
Stephi 10/10 3681 days 21%
Amanda 10/10 3681 days 21%
Mick Doherty 9/10 3712 days 21%
hendrik king 7/10 3712 days 19%
Shoe 10/10 3743 days 21%
marcvergroesen 9/10 3957 days 21%
Jenny Leyland 9/10 3957 days 21%
MarcyMark 10/10 3987 days 21%
katrina Marshall 10/10 4004 days 21%
Von 9/10 4018 days 21%
Judith 8/10 4024 days 20%
Doris Resch 10/10 4024 days 21%
Sheila Morgan 10/10 4027 days 21%
Maria Newton 9/10 4028 days 21%
Faller 10/10 4041 days 21%
Wim Van Gastel 8/10 4044 days 20%
Laura Walters 9/10 4045 days 21%
Chance McGuire 10/10 4046 days 21%
cees juffermans 9/10 4059 days 21%
Markus 10/10 4062 days 21%
Grainne Ahern 10/10 4077 days 21%
sutuckey 10/10 4077 days 21%
Honeymooners 10/10 4077 days 21%
sophiep 9/10 4092 days 21%
chuckchallenger 10/10 4108 days 21%
mdarras 9/10 4112 days 21%
joramv 9/10 4112 days 21%
Michelle Kraemer 10/10 4115 days 21%
Kimberly Skyes 10/10 4115 days 21%
Ruth Colmer 9/10 4118 days 21%
maleta 8/10 4129 days 20%
Simon_and_Jane_OZ 9/10 4322 days 21%
JoF 10/10 4344 days 21%
Christian Kamm 10/10 4349 days 21%
Michael Maddams 7/10 4350 days 19%
Joanna Harrnon 10/10 4351 days 21%
Sarah 8/10 4352 days 20%
David 10/10 4352 days 21%
jjakkeren 9/10 4352 days 21%
Alanna 10/10 4354 days 21%
ElissaH 10/10 4354 days 21%
Andrew Smith 9/10 4358 days 21%
Jean 10/10 4369 days 21%
CarinaB1 10/10 4373 days 21%
Lindsey 9/10 4384 days 21%
Lisa 10/10 4389 days 21%
Laura 8/10 4391 days 20%
kiwibrit86 9/10 4394 days 21%
Visken 10/10 4396 days 21%
Christina 10/10 4401 days 21%
RachaelO 10/10 4402 days 21%
Marianne 10/10 4403 days 21%
Peppa 10/10 4403 days 21%
Jackie 9/10 4417 days 21%
Patrick 9/10 4417 days 21%
Carla 8/10 4418 days 20%
Keith 10/10 4424 days 21%
Saskia 9/10 4425 days 21%
Patrick 10/10 4429 days 21%
Charlie 9/10 4433 days 21%
Ten 10/10 4433 days 21%
Kevin Dangerfield 10/10 4442 days 21%
Graham 9/10 4457 days 21%
David 10/10 4466 days 21%
Eveline 10/10 4466 days 21%
Mette 10/10 4473 days 21%
Rowan 9/10 4498 days 21%
Hanna 10/10 4498 days 21%
Sally Walker 10/10 4503 days 21%
abby 10/10 4509 days 21%
Paul 10/10 4520 days 21%
Peter 10/10 4528 days 21%
Anna 10/10 4550 days 21%
Liz 9/10 4559 days 21%
Laura 8/10 4559 days 20%
Amy Shields 7/10 4563 days 19%
Erin 9/10 4571 days 21%
George Burgas 7/10 4577 days 19%
Sharon Curly 7/10 4585 days 19%
Peddy 8/10 4587 days 20%
Christine 9/10 4601 days 21%
Charlie Bond 8/10 4634 days 20%
SandyS 10/10 4687 days 21%
BexStar 10/10 4701 days 21%
Galen 9/10 4718 days 21%
Monica Black 10/10 4718 days 21%
Denise 10/10 4735 days 21%
Ria 9/10 4739 days 21%
Christian 7/10 4739 days 19%
Wiebke 9/10 4743 days 21%
Phil Connelly 9/10 4744 days 21%
Amanda 9/10 4750 days 21%
Erwin de Kleijn 9/10 4757 days 21%
Nick 10/10 4766 days 21%
John 9/10 4766 days 21%
Sandra Gustafson 10/10 4794 days 21%
Jo 10/10 4794 days 21%
Helena 10/10 4795 days 21%
Seldam 8/10 4800 days 20%
Andrew Purdam 7/10 4808 days 19%
Gerber Liselotte 10/10 4826 days 21%
Gabriela Herger 8/10 4834 days 20%
Jane Coleman 8/10 4837 days 20%
Wendy Williams 9/10 4844 days 21%
Claire 8/10 5068 days 20%
Will 9/10 5068 days 21%
JanKovar 10/10 5070 days 21%
Justin 10/10 5073 days 21%
Beth 9/10 5079 days 21%
Hanneke 9/10 5080 days 21%
Cat 8/10 5082 days 20%
MartinTrenker 9/10 5088 days 21%
Janneke 10/10 5089 days 21%
Renee 9/10 5092 days 21%
Elke 8/10 5107 days 20%
Malon 10/10 5108 days 21%
Ralph 10/10 5117 days 21%
Lucy 10/10 5117 days 21%
Gordon 8/10 5129 days 20%
Beate 9/10 5130 days 21%
MartinJago 8/10 5141 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

-4.11% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 55 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 -4.05%
198 -4.07%
199 -4.09%
200 -4.11%
201 -4.13%
202 -4.15%
203 -4.17%

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.