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

93.05%

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 9/10 402 days true 89.27 100%
Stefan Zink 10/10 654 days true 42.98 48%
Fentrup 9/10 660 days true 41.98 47%
Katharina Koch 10/10 664 days true 41.32 46%
Aurelie and Ben Marie 9/10 666 days true 41.0 46%
Sebastian Braun 9/10 754 days true 28.11 31%
Joanne Woo 10/10 771 days 21.63 24%
Chris 6/10 802 days 18.6 20%
Olivier Reculeau 10/10 988 days true 8.18 8%
Susanne Breudel 10/10 993 days true 7.98 8%
Josh Legge 10/10 1001 days true 7.68 8%
Daniel Weber 9/10 1003 days true 7.61 8%
Virginia Fradin 10/10 1007 days true 7.47 8%
Olivier Anciaux 9/10 1010 days true 7.37 8%
Wendy van Boom 10/10 1010 days true 7.37 8%
Bas Hoogteijling 10/10 1013 days true 7.28 7%
Mira Huckfield 10/10 1023 days true 6.99 7%
Maike Santelmann 10/10 1035 days true 6.68 7%
Levin Stuers 10/10 1040 days true 6.58 7%
magdalena gomez haedo 9/10 1043 days 5.43 5%
Lucca Weisbender 10/10 1045 days 5.4 5%
Anna Scholten 10/10 1046 days true 6.46 7%
Nils Kissel 10/10 1056 days 5.24 5%
Madita and Lisann 10/10 1092 days true 6.0 6%
sanneke tangel 10/10 1098 days true 6.0 6%
Georgia Coleman 10/10 1098 days true 6.0 6%
Virgil Spruit 8/10 1102 days true 5.99 6%
Xue Rong Kok 7/10 1107 days 4.98 5%
Anthony Jacobs 10/10 1229 days 4.82 5%
Sofie Jebsen 10/10 1372 days true 5.54 5%
Tobias 10/10 1372 days true 5.54 5%
Annika Funk 10/10 1408 days true 5.49 5%
Dawn Mulligan 10/10 1424 days true 5.46 5%
Christophe Scieszka 10/10 1441 days 4.53 4%
Hubert 8/10 1481 days true 5.37 5%
Ondrej Stepanek 8/10 1717 days true 4.98 5%
Boneschova Jarka 10/10 1717 days true 4.98 5%
Heike Heller 10/10 1726 days true 4.96 5%
Andreas Mouteiro 9/10 1726 days true 4.96 5%
Josefin Lind 10/10 1727 days true 4.96 5%
Herman Holmgist 10/10 1727 days true 4.96 5%
Felicitas 9/10 1749 days true 4.92 5%
Antoine 8/10 1757 days true 4.91 5%
Mara K 10/10 1776 days 4.07 4%
Emilie Chanbon 10/10 1779 days true 4.88 5%
Alexis Redor 10/10 1779 days true 4.88 5%
Julia Amberger 8/10 1798 days true 4.84 5%
Annalina Drebald 8/10 1798 days true 4.84 5%
balesdent 9/10 1804 days true 4.83 5%
Alineet Gautier 10/10 1807 days true 4.83 5%
Annika Schmidt 10/10 2087 days true 4.37 4%
Patrick Stoeit 10/10 2087 days true 4.37 4%
Audrey Ripoche 9/10 2089 days true 4.37 4%
Rey Germain 9/10 2089 days true 4.37 4%
Christofer Tonn 10/10 2099 days true 4.35 4%
Ann Furlong 10/10 2107 days true 4.34 4%
Trudy Ryan 8/10 2107 days true 4.34 4%
Jill Fischer 10/10 2113 days 3.61 3%
Kim 10/10 2113 days 3.61 3%
Francois Marchar 9/10 2123 days true 4.31 4%
Jan Zimmerman 10/10 2128 days true 4.3 4%
Elvin Teo 10/10 2141 days 3.57 3%
Rob 9/10 2189 days true 4.2 4%
Andreas Garbin 10/10 2191 days true 4.2 4%
Joanna 9/10 2209 days true 4.17 4%
Mellow 10/10 2233 days 3.44 3%
whalelover88 10/10 2386 days 3.23 3%
Jos Schieveen 8/10 2457 days true 3.76 3%
Goran Backlund 9/10 2463 days true 3.75 3%
Nathan Sait 10/10 2470 days true 3.74 3%
Toby Clark 10/10 2470 days true 3.74 3%
Maxine Gilman 10/10 2473 days true 3.73 3%
Harald 9/10 2487 days true 3.71 3%
Dominik Langenegger 9/10 2489 days true 3.71 3%
Rebecca Richardson 9/10 2489 days true 3.71 3%
Andrew Powell 9/10 2489 days true 3.71 3%
Peter Field 10/10 2489 days true 3.71 3%
Eric Lombaard 8/10 2490 days true 3.71 3%
Nicholas Prakenhammar 10/10 2491 days true 3.71 3%
Peter Wall 7/10 2491 days true 3.71 3%
Verne Heath 8/10 2492 days true 3.7 3%
John O'Donnell 10/10 2493 days true 3.7 3%
Paul Fairbrass 10/10 2500 days true 3.69 3%
Frank Krivauek 10/10 2501 days true 3.69 3%
Rocco Christian 7/10 2501 days true 3.69 3%
Kurt & Noemi Buhler 7/10 2502 days true 3.69 3%
Therese 7/10 2505 days true 3.68 3%
Katie K 9/10 2516 days true 3.66 3%
CMJ 10/10 2538 days 3.02 3%
Jacqueline 10/10 2569 days 2.98 3%
Marc & Pauline 9/10 2575 days true 3.57 3%
Kevin & Chris 9/10 2576 days true 3.57 3%
Robin & Sandra Dijke 9/10 2578 days true 3.56 3%
Laura McCusker 8/10 2585 days true 3.55 3%
Dexter 10/10 2783 days 2.69 2%
Jasmin Loeffler 10/10 2789 days true 3.22 3%
Natascha Rachel 10/10 2789 days true 3.22 3%
Res Kormann 10/10 2802 days true 3.19 3%
Sarah James 10/10 2812 days true 3.18 3%
Nick Taylor 10/10 2812 days true 3.18 3%
Nicola Young 10/10 2812 days true 3.18 3%
Stefan Elsenbruch 9/10 2817 days true 3.17 3%
Stefanie 7/10 2827 days true 3.15 3%
Koen Vanlede 10/10 2830 days true 3.15 3%
Van Vliet 8/10 2831 days true 3.15 3%
Vanessa Vogel 10/10 2834 days true 3.14 3%
Marcel Camsch 9/10 2836 days true 3.14 3%
Keely & Mark Haynes 10/10 2837 days true 3.14 3%
Svea Sauter 10/10 2837 days true 3.14 3%
henriket 10/10 2838 days true 3.13 3%
Amanda Wells 10/10 2838 days true 3.13 3%
K & J Overton 9/10 2838 days true 3.13 3%
Jerry & Floon 9/10 2842 days true 3.13 3%
Bartl 10/10 2842 days true 3.13 3%
travellingfamilyof6 10/10 2844 days 2.6 2%
WeddingMaven 10/10 2844 days 2.6 2%
Lieve Verdonck 8/10 2845 days true 3.12 3%
Victoria Purver 8/10 2847 days true 3.12 3%
Thelia Beament 9/10 2847 days true 3.12 3%
Edwards 9/10 2851 days true 3.11 3%
Mark Irwin 9/10 2855 days true 3.11 3%
Agnes McMillan 10/10 2856 days true 3.11 3%
Leslie 9/10 2856 days true 3.11 3%
Selina Mueller 10/10 2858 days true 3.1 3%
Jill Dean 10/10 2859 days true 3.1 3%
Chloe Finster 10/10 2859 days true 3.1 3%
Vanderhorst 9/10 2860 days true 3.1 3%
Judith K. 10/10 2862 days true 3.1 3%
Amanda Wallace 9/10 2862 days true 3.1 3%
Mark Aarts 10/10 2863 days true 3.09 3%
Forestal Youri 9/10 2864 days true 3.09 3%
Dave and Lin Mungham 10/10 2865 days true 3.09 3%
Jane Hancock 10/10 2867 days true 3.09 3%
Stephi 10/10 2872 days 2.57 2%
Amanda 10/10 2872 days 2.57 2%
Mick Doherty 9/10 2903 days 2.52 2%
hendrik king 7/10 2903 days 2.52 2%
Shoe 10/10 2934 days 2.48 2%
marcvergroesen 9/10 3148 days 2.19 2%
Jenny Leyland 9/10 3148 days 2.19 2%
MarcyMark 10/10 3178 days 2.15 2%
katrina Marshall 10/10 3195 days true 2.55 2%
Von 9/10 3209 days 2.1 2%
Judith 8/10 3215 days true 2.52 2%
Doris Resch 10/10 3215 days true 2.52 2%
Sheila Morgan 10/10 3218 days true 2.51 2%
Maria Newton 9/10 3219 days true 2.51 2%
Faller 10/10 3232 days true 2.49 2%
Wim Van Gastel 8/10 3235 days true 2.48 2%
Laura Walters 9/10 3236 days true 2.48 2%
Chance McGuire 10/10 3237 days 2.07 2%
cees juffermans 9/10 3250 days true 2.46 2%
Markus 10/10 3253 days true 2.45 2%
Grainne Ahern 10/10 3268 days 2.02 2%
sutuckey 10/10 3268 days 2.02 2%
Honeymooners 10/10 3268 days 2.02 2%
sophiep 9/10 3283 days true 2.4 2%
chuckchallenger 10/10 3299 days 1.98 1%
mdarras 9/10 3303 days true 2.37 2%
joramv 9/10 3303 days true 2.37 2%
Michelle Kraemer 10/10 3306 days true 2.37 2%
Kimberly Skyes 10/10 3306 days true 2.37 2%
Ruth Colmer 9/10 3309 days true 2.36 2%
maleta 8/10 3320 days true 2.34 2%
Simon_and_Jane_OZ 9/10 3513 days 1.69 1%
JoF 10/10 3535 days true 1.99 1%
Christian Kamm 10/10 3540 days true 1.98 1%
Michael Maddams 7/10 3541 days true 1.98 1%
Joanna Harrnon 10/10 3542 days true 1.98 1%
Sarah 8/10 3542 days true 1.98 1%
David 10/10 3543 days 1.65 1%
jjakkeren 9/10 3543 days true 1.98 1%
Alanna 10/10 3544 days true 1.97 1%
ElissaH 10/10 3545 days true 1.97 1%
Andrew Smith 9/10 3549 days true 1.97 1%
Jean 10/10 3559 days true 1.95 1%
CarinaB1 10/10 3564 days true 1.94 1%
Lindsey 9/10 3574 days 1.6 1%
Lisa 10/10 3579 days true 1.92 1%
Laura 8/10 3582 days true 1.91 1%
kiwibrit86 9/10 3584 days 1.59 1%
Visken 10/10 3586 days true 1.91 1%
Christina 10/10 3591 days true 1.9 1%
RachaelO 10/10 3593 days true 1.89 1%
Marianne 10/10 3593 days true 1.89 1%
Peppa 10/10 3593 days true 1.89 1%
Jackie 9/10 3607 days true 1.87 1%
Patrick 9/10 3607 days true 1.87 1%
Carla 8/10 3609 days true 1.87 1%
Keith 10/10 3614 days 1.55 1%
Saskia 9/10 3615 days true 1.86 1%
Patrick 10/10 3619 days true 1.85 1%
Charlie 9/10 3623 days true 1.84 1%
Ten 10/10 3623 days true 1.84 1%
Kevin Dangerfield 10/10 3632 days 1.52 1%
Graham 9/10 3647 days true 1.8 1%
David 10/10 3656 days true 1.79 1%
Eveline 10/10 3656 days true 1.79 1%
Mette 10/10 3663 days true 1.78 1%
Rowan 9/10 3688 days true 1.74 1%
Hanna 10/10 3688 days true 1.74 1%
Sally Walker 10/10 3694 days 1.44 1%
abby 10/10 3699 days true 1.72 1%
Paul 10/10 3710 days true 1.7 1%
Peter 10/10 3718 days true 1.69 1%
Anna 10/10 3740 days true 1.65 1%
Liz 9/10 3749 days true 1.64 1%
Laura 8/10 3749 days true 1.64 1%
Amy Shields 7/10 3753 days true 1.63 1%
Erin 9/10 3761 days true 1.62 1%
George Burgas 7/10 3767 days true 1.61 1%
Sharon Curly 7/10 3775 days true 1.59 1%
Peddy 8/10 3778 days 1.32 1%
Christine 9/10 3791 days true 1.57 1%
Charlie Bond 8/10 3824 days true 1.51 1%
SandyS 10/10 3878 days 1.19 1%
BexStar 10/10 3891 days 1.17 1%
Galen 9/10 3909 days true 1.37 1%
Monica Black 10/10 3909 days true 1.37 1%
Denise 10/10 3926 days true 1.35 1%
Ria 9/10 3930 days true 1.34 1%
Christian 7/10 3930 days true 1.34 1%
Wiebke 9/10 3934 days true 1.33 1%
Phil Connelly 9/10 3935 days true 1.33 1%
Amanda 9/10 3941 days true 1.32 1%
Erwin de Kleijn 9/10 3948 days true 1.31 1%
Nick 10/10 3957 days true 1.3 1%
John 9/10 3957 days true 1.3 1%
Sandra Gustafson 10/10 3985 days true 1.25 1%
Jo 10/10 3985 days true 1.25 1%
Helena 10/10 3986 days true 1.25 1%
Seldam 8/10 3991 days true 1.24 1%
Andrew Purdam 7/10 3999 days 1.02 0%
Gerber Liselotte 10/10 4017 days true 1.2 1%
Gabriela Herger 8/10 4025 days true 1.18 1%
Jane Coleman 8/10 4028 days true 1.18 1%
Wendy Williams 9/10 4035 days true 1.17 1%
Claire 8/10 4259 days true 0.8 0%
Will 9/10 4259 days true 0.8 0%
JanKovar 10/10 4261 days true 0.8 0%
Justin 10/10 4264 days true 0.79 0%
Beth 9/10 4270 days true 0.78 0%
Hanneke 9/10 4271 days true 0.78 0%
Cat 8/10 4273 days true 0.78 0%
MartinTrenker 9/10 4279 days true 0.77 0%
Janneke 10/10 4280 days true 0.76 0%
Renee 9/10 4283 days true 0.76 0%
Elke 8/10 4298 days true 0.73 0%
Malon 10/10 4299 days true 0.73 0%
Ralph 10/10 4308 days true 0.72 0%
Lucy 10/10 4308 days true 0.72 0%
Gordon 8/10 4320 days true 0.7 0%
Beate 9/10 4321 days true 0.7 0%
MartinJago 8/10 4332 days true 0.68 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

-7.28% 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 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

86%

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.