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

93.42%

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 9/10 111 days 100%
Stefan Zink 10/10 363 days 81%
Fentrup 9/10 369 days 80%
Katharina Koch 10/10 373 days 79%
Aurelie and Ben Marie 9/10 375 days 79%
Sebastian Braun 9/10 463 days 67%
Joanne Woo 10/10 480 days 54%
Chris 6/10 511 days 49%
Olivier Reculeau 10/10 697 days 30%
Susanne Breudel 10/10 702 days 29%
Josh Legge 10/10 710 days 28%
Daniel Weber 9/10 712 days 28%
Virginia Fradin 10/10 716 days 28%
Olivier Anciaux 9/10 719 days 27%
Wendy van Boom 10/10 719 days 27%
Bas Hoogteijling 10/10 722 days 27%
Mira Huckfield 10/10 732 days 26%
Maike Santelmann 10/10 744 days 24%
Levin Stuers 10/10 749 days 24%
magdalena gomez haedo 9/10 752 days 19%
Lucca Weisbender 10/10 754 days 19%
Anna Scholten 10/10 755 days 23%
Nils Kissel 10/10 765 days 18%
Madita and Lisann 10/10 801 days 18%
sanneke tangel 10/10 807 days 18%
Georgia Coleman 10/10 807 days 18%
Virgil Spruit 8/10 811 days 17%
Xue Rong Kok 7/10 816 days 14%
Anthony Jacobs 10/10 938 days 7%
Sofie Jebsen 10/10 1081 days 4%
Tobias 10/10 1081 days 4%
Annika Funk 10/10 1117 days 4%
Dawn Mulligan 10/10 1133 days 4%
Christophe Scieszka 10/10 1150 days 3%
Hubert 8/10 1190 days 4%
Ondrej Stepanek 8/10 1426 days 4%
Boneschova Jarka 10/10 1426 days 4%
Heike Heller 10/10 1435 days 4%
Andreas Mouteiro 9/10 1435 days 4%
Josefin Lind 10/10 1436 days 4%
Herman Holmgist 10/10 1436 days 4%
Felicitas 9/10 1458 days 4%
Antoine 8/10 1466 days 4%
Mara K 10/10 1485 days 3%
Emilie Chanbon 10/10 1488 days 4%
Alexis Redor 10/10 1488 days 4%
Julia Amberger 8/10 1507 days 4%
Annalina Drebald 8/10 1507 days 4%
balesdent 9/10 1513 days 4%
Alineet Gautier 10/10 1516 days 4%
Annika Schmidt 10/10 1796 days 3%
Patrick Stoeit 10/10 1796 days 3%
Audrey Ripoche 9/10 1798 days 3%
Rey Germain 9/10 1798 days 3%
Christofer Tonn 10/10 1808 days 3%
Ann Furlong 10/10 1816 days 3%
Trudy Ryan 8/10 1816 days 3%
Jill Fischer 10/10 1822 days 2%
Kim 10/10 1822 days 2%
Francois Marchar 9/10 1832 days 3%
Jan Zimmerman 10/10 1837 days 3%
Elvin Teo 10/10 1850 days 2%
Rob 9/10 1898 days 3%
Andreas Garbin 10/10 1900 days 3%
Joanna 9/10 1918 days 3%
Mellow 10/10 1942 days 2%
whalelover88 10/10 2095 days 2%
Jos Schieveen 8/10 2166 days 3%
Goran Backlund 9/10 2172 days 3%
Nathan Sait 10/10 2179 days 3%
Toby Clark 10/10 2179 days 3%
Maxine Gilman 10/10 2182 days 3%
Harald 9/10 2196 days 3%
Dominik Langenegger 9/10 2198 days 3%
Rebecca Richardson 9/10 2198 days 3%
Andrew Powell 9/10 2198 days 3%
Peter Field 10/10 2198 days 3%
Eric Lombaard 8/10 2199 days 3%
Nicholas Prakenhammar 10/10 2200 days 3%
Peter Wall 7/10 2200 days 3%
Verne Heath 8/10 2201 days 3%
John O'Donnell 10/10 2202 days 3%
Paul Fairbrass 10/10 2209 days 3%
Frank Krivauek 10/10 2210 days 3%
Rocco Christian 7/10 2210 days 3%
Kurt & Noemi Buhler 7/10 2211 days 3%
Therese 7/10 2214 days 3%
Katie K 9/10 2225 days 3%
CMJ 10/10 2247 days 2%
Jacqueline 10/10 2278 days 2%
Marc & Pauline 9/10 2284 days 2%
Kevin & Chris 9/10 2285 days 2%
Robin & Sandra Dijke 9/10 2287 days 2%
Laura McCusker 8/10 2294 days 2%
Dexter 10/10 2492 days 2%
Jasmin Loeffler 10/10 2498 days 2%
Natascha Rachel 10/10 2498 days 2%
Res Kormann 10/10 2511 days 2%
Sarah James 10/10 2521 days 2%
Nick Taylor 10/10 2521 days 2%
Nicola Young 10/10 2521 days 2%
Stefan Elsenbruch 9/10 2526 days 2%
Stefanie 7/10 2536 days 2%
Koen Vanlede 10/10 2539 days 2%
Van Vliet 8/10 2540 days 2%
Vanessa Vogel 10/10 2543 days 2%
Marcel Camsch 9/10 2545 days 2%
Keely & Mark Haynes 10/10 2546 days 2%
Svea Sauter 10/10 2546 days 2%
henriket 10/10 2547 days 2%
Amanda Wells 10/10 2547 days 2%
K & J Overton 9/10 2547 days 2%
Jerry & Floon 9/10 2551 days 2%
Bartl 10/10 2551 days 2%
travellingfamilyof6 10/10 2553 days 2%
WeddingMaven 10/10 2553 days 2%
Lieve Verdonck 8/10 2554 days 2%
Victoria Purver 8/10 2556 days 2%
Thelia Beament 9/10 2556 days 2%
Edwards 9/10 2560 days 2%
Mark Irwin 9/10 2564 days 2%
Agnes McMillan 10/10 2565 days 2%
Leslie 9/10 2565 days 2%
Selina Mueller 10/10 2567 days 2%
Jill Dean 10/10 2568 days 2%
Chloe Finster 10/10 2568 days 2%
Vanderhorst 9/10 2569 days 2%
Judith K. 10/10 2571 days 2%
Amanda Wallace 9/10 2571 days 2%
Mark Aarts 10/10 2572 days 2%
Forestal Youri 9/10 2573 days 2%
Dave and Lin Mungham 10/10 2574 days 2%
Jane Hancock 10/10 2576 days 2%
Stephi 10/10 2581 days 2%
Amanda 10/10 2581 days 2%
Mick Doherty 9/10 2612 days 2%
hendrik king 7/10 2612 days 2%
Shoe 10/10 2643 days 1%
marcvergroesen 9/10 2857 days 1%
Jenny Leyland 9/10 2857 days 1%
MarcyMark 10/10 2887 days 1%
katrina Marshall 10/10 2904 days 2%
Von 9/10 2918 days 1%
Judith 8/10 2924 days 2%
Doris Resch 10/10 2924 days 2%
Sheila Morgan 10/10 2927 days 2%
Maria Newton 9/10 2928 days 2%
Faller 10/10 2941 days 2%
Wim Van Gastel 8/10 2944 days 2%
Laura Walters 9/10 2945 days 2%
Chance McGuire 10/10 2946 days 1%
cees juffermans 9/10 2959 days 2%
Markus 10/10 2962 days 2%
Grainne Ahern 10/10 2977 days 1%
sutuckey 10/10 2977 days 1%
Honeymooners 10/10 2977 days 1%
sophiep 9/10 2992 days 1%
chuckchallenger 10/10 3008 days 1%
mdarras 9/10 3012 days 1%
joramv 9/10 3012 days 1%
Michelle Kraemer 10/10 3015 days 1%
Kimberly Skyes 10/10 3015 days 1%
Ruth Colmer 9/10 3018 days 1%
maleta 8/10 3029 days 1%
Simon_and_Jane_OZ 9/10 3222 days 1%
JoF 10/10 3244 days 1%
Christian Kamm 10/10 3249 days 1%
Michael Maddams 7/10 3250 days 1%
Joanna Harrnon 10/10 3251 days 1%
Sarah 8/10 3251 days 1%
David 10/10 3252 days 1%
jjakkeren 9/10 3252 days 1%
Alanna 10/10 3253 days 1%
ElissaH 10/10 3254 days 1%
Andrew Smith 9/10 3258 days 1%
Jean 10/10 3268 days 1%
CarinaB1 10/10 3273 days 1%
Lindsey 9/10 3283 days 1%
Lisa 10/10 3288 days 1%
Laura 8/10 3291 days 1%
kiwibrit86 9/10 3293 days 1%
Visken 10/10 3295 days 1%
Christina 10/10 3300 days 1%
RachaelO 10/10 3302 days 1%
Marianne 10/10 3302 days 1%
Peppa 10/10 3302 days 1%
Jackie 9/10 3316 days 1%
Patrick 9/10 3316 days 1%
Carla 8/10 3318 days 1%
Keith 10/10 3323 days 1%
Saskia 9/10 3324 days 1%
Patrick 10/10 3328 days 1%
Charlie 9/10 3332 days 1%
Ten 10/10 3332 days 1%
Kevin Dangerfield 10/10 3341 days 1%
Graham 9/10 3356 days 1%
David 10/10 3365 days 1%
Eveline 10/10 3365 days 1%
Mette 10/10 3372 days 1%
Rowan 9/10 3397 days 1%
Hanna 10/10 3397 days 1%
Sally Walker 10/10 3403 days 1%
abby 10/10 3408 days 1%
Paul 10/10 3419 days 1%
Peter 10/10 3427 days 1%
Anna 10/10 3449 days 1%
Liz 9/10 3458 days 1%
Laura 8/10 3458 days 1%
Amy Shields 7/10 3462 days 1%
Erin 9/10 3470 days 1%
George Burgas 7/10 3476 days 1%
Sharon Curly 7/10 3484 days 1%
Peddy 8/10 3487 days 0%
Christine 9/10 3500 days 1%
Charlie Bond 8/10 3533 days 1%
SandyS 10/10 3587 days 0%
BexStar 10/10 3600 days 0%
Galen 9/10 3618 days 1%
Monica Black 10/10 3618 days 1%
Denise 10/10 3635 days 1%
Ria 9/10 3639 days 1%
Christian 7/10 3639 days 1%
Wiebke 9/10 3643 days 1%
Phil Connelly 9/10 3644 days 1%
Amanda 9/10 3650 days 1%
Erwin de Kleijn 9/10 3657 days 1%
Nick 10/10 3666 days 1%
John 9/10 3666 days 1%
Sandra Gustafson 10/10 3694 days 0%
Jo 10/10 3694 days 0%
Helena 10/10 3695 days 0%
Seldam 8/10 3700 days 0%
Andrew Purdam 7/10 3708 days 0%
Gerber Liselotte 10/10 3726 days 0%
Gabriela Herger 8/10 3734 days 0%
Jane Coleman 8/10 3737 days 0%
Wendy Williams 9/10 3744 days 0%
Claire 8/10 3968 days 0%
Will 9/10 3968 days 0%
JanKovar 10/10 3970 days 0%
Justin 10/10 3973 days 0%
Beth 9/10 3979 days 0%
Hanneke 9/10 3980 days 0%
Cat 8/10 3982 days 0%
MartinTrenker 9/10 3988 days 0%
Janneke 10/10 3989 days 0%
Renee 9/10 3992 days 0%
Elke 8/10 4007 days 0%
Malon 10/10 4008 days 0%
Ralph 10/10 4017 days 0%
Lucy 10/10 4017 days 0%
Gordon 8/10 4029 days 0%
Beate 9/10 4030 days 0%
MartinJago 8/10 4041 days 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

-2.02% 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 364 days.

The Dolphin Encounter Kaikoura experience has been adjusted for 101 days. Adjustments are according to the following table.

Days Adjustment
98 -1.96%
99 -1.98%
100 -2.00%
101 -2.02%
102 -2.04%
103 -2.06%
104 -2.08%

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.