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

93.21%

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 9/10 535 days true 65.57 100%
Stefan Zink 10/10 787 days true 24.04 36%
Fentrup 9/10 793 days true 23.34 35%
Katharina Koch 10/10 797 days true 22.89 34%
Aurelie and Ben Marie 9/10 799 days true 22.66 34%
Sebastian Braun 9/10 887 days true 14.23 21%
Joanne Woo 10/10 904 days 10.78 16%
Chris 6/10 935 days 9.06 13%
Olivier Reculeau 10/10 1121 days true 5.96 8%
Susanne Breudel 10/10 1126 days true 5.95 8%
Josh Legge 10/10 1134 days true 5.94 8%
Daniel Weber 9/10 1136 days true 5.93 8%
Virginia Fradin 10/10 1140 days true 5.93 8%
Olivier Anciaux 9/10 1143 days true 5.92 8%
Wendy van Boom 10/10 1143 days true 5.92 8%
Bas Hoogteijling 10/10 1146 days true 5.92 8%
Mira Huckfield 10/10 1156 days true 5.9 8%
Maike Santelmann 10/10 1168 days true 5.88 8%
Levin Stuers 10/10 1173 days true 5.87 8%
magdalena gomez haedo 9/10 1176 days 4.89 7%
Lucca Weisbender 10/10 1178 days 4.89 7%
Anna Scholten 10/10 1179 days true 5.86 8%
Nils Kissel 10/10 1189 days 4.87 7%
Madita and Lisann 10/10 1225 days true 5.79 8%
sanneke tangel 10/10 1231 days true 5.78 8%
Georgia Coleman 10/10 1231 days true 5.78 8%
Virgil Spruit 8/10 1235 days true 5.77 8%
Xue Rong Kok 7/10 1240 days 4.8 7%
Anthony Jacobs 10/10 1362 days 4.63 6%
Sofie Jebsen 10/10 1505 days true 5.33 7%
Tobias 10/10 1505 days true 5.33 7%
Annika Funk 10/10 1541 days true 5.27 7%
Dawn Mulligan 10/10 1557 days true 5.24 7%
Christophe Scieszka 10/10 1574 days 4.34 6%
Hubert 8/10 1614 days true 5.15 7%
Ondrej Stepanek 8/10 1850 days true 4.76 7%
Boneschova Jarka 10/10 1850 days true 4.76 7%
Heike Heller 10/10 1859 days true 4.74 7%
Andreas Mouteiro 9/10 1859 days true 4.74 7%
Josefin Lind 10/10 1860 days true 4.74 7%
Herman Holmgist 10/10 1860 days true 4.74 7%
Felicitas 9/10 1882 days true 4.71 7%
Antoine 8/10 1890 days true 4.69 7%
Mara K 10/10 1909 days 3.88 5%
Emilie Chanbon 10/10 1912 days true 4.66 6%
Alexis Redor 10/10 1912 days true 4.66 6%
Julia Amberger 8/10 1931 days true 4.63 6%
Annalina Drebald 8/10 1931 days true 4.63 6%
balesdent 9/10 1937 days true 4.62 6%
Alineet Gautier 10/10 1940 days true 4.61 6%
Annika Schmidt 10/10 2220 days true 4.15 6%
Patrick Stoeit 10/10 2220 days true 4.15 6%
Audrey Ripoche 9/10 2222 days true 4.15 6%
Rey Germain 9/10 2222 days true 4.15 6%
Christofer Tonn 10/10 2232 days true 4.13 6%
Ann Furlong 10/10 2240 days true 4.12 6%
Trudy Ryan 8/10 2240 days true 4.12 6%
Jill Fischer 10/10 2246 days 3.42 5%
Kim 10/10 2246 days 3.42 5%
Francois Marchar 9/10 2256 days true 4.09 6%
Jan Zimmerman 10/10 2261 days true 4.08 6%
Elvin Teo 10/10 2274 days 3.38 4%
Rob 9/10 2322 days true 3.98 5%
Andreas Garbin 10/10 2324 days true 3.98 5%
Joanna 9/10 2342 days true 3.95 5%
Mellow 10/10 2366 days 3.26 4%
whalelover88 10/10 2518 days 3.05 4%
Jos Schieveen 8/10 2590 days true 3.54 5%
Goran Backlund 9/10 2596 days true 3.53 5%
Nathan Sait 10/10 2603 days true 3.52 5%
Toby Clark 10/10 2603 days true 3.52 5%
Maxine Gilman 10/10 2606 days true 3.52 5%
Harald 9/10 2620 days true 3.49 5%
Dominik Langenegger 9/10 2622 days true 3.49 5%
Rebecca Richardson 9/10 2622 days true 3.49 5%
Andrew Powell 9/10 2622 days true 3.49 5%
Peter Field 10/10 2622 days true 3.49 5%
Eric Lombaard 8/10 2623 days true 3.49 5%
Nicholas Prakenhammar 10/10 2624 days true 3.49 5%
Peter Wall 7/10 2624 days true 3.49 5%
Verne Heath 8/10 2625 days true 3.48 5%
John O'Donnell 10/10 2626 days true 3.48 5%
Paul Fairbrass 10/10 2633 days true 3.47 5%
Frank Krivauek 10/10 2634 days true 3.47 5%
Rocco Christian 7/10 2634 days true 3.47 5%
Kurt & Noemi Buhler 7/10 2635 days true 3.47 5%
Therese 7/10 2638 days true 3.46 5%
Katie K 9/10 2649 days true 3.45 5%
CMJ 10/10 2671 days 2.84 4%
Jacqueline 10/10 2702 days 2.8 4%
Marc & Pauline 9/10 2708 days true 3.35 4%
Kevin & Chris 9/10 2709 days true 3.35 4%
Robin & Sandra Dijke 9/10 2711 days true 3.34 4%
Laura McCusker 8/10 2718 days true 3.33 4%
Dexter 10/10 2915 days 2.51 3%
Jasmin Loeffler 10/10 2921 days true 3.0 4%
Natascha Rachel 10/10 2921 days true 3.0 4%
Res Kormann 10/10 2934 days true 2.98 4%
Sarah James 10/10 2945 days true 2.96 4%
Nick Taylor 10/10 2945 days true 2.96 4%
Nicola Young 10/10 2945 days true 2.96 4%
Stefan Elsenbruch 9/10 2950 days true 2.95 4%
Stefanie 7/10 2960 days true 2.93 4%
Koen Vanlede 10/10 2963 days true 2.93 4%
Van Vliet 8/10 2964 days true 2.93 4%
Vanessa Vogel 10/10 2967 days true 2.92 4%
Marcel Camsch 9/10 2969 days true 2.92 4%
Keely & Mark Haynes 10/10 2970 days true 2.92 4%
Svea Sauter 10/10 2970 days true 2.92 4%
henriket 10/10 2971 days true 2.92 4%
Amanda Wells 10/10 2971 days true 2.92 4%
K & J Overton 9/10 2971 days true 2.92 4%
Jerry & Floon 9/10 2975 days true 2.91 4%
Bartl 10/10 2975 days true 2.91 4%
travellingfamilyof6 10/10 2977 days 2.42 3%
WeddingMaven 10/10 2977 days 2.42 3%
Lieve Verdonck 8/10 2978 days true 2.9 4%
Victoria Purver 8/10 2980 days true 2.9 4%
Thelia Beament 9/10 2980 days true 2.9 4%
Edwards 9/10 2984 days true 2.89 4%
Mark Irwin 9/10 2988 days true 2.89 4%
Agnes McMillan 10/10 2989 days true 2.89 4%
Leslie 9/10 2989 days true 2.89 4%
Selina Mueller 10/10 2991 days true 2.88 4%
Jill Dean 10/10 2992 days true 2.88 4%
Chloe Finster 10/10 2992 days true 2.88 4%
Vanderhorst 9/10 2993 days true 2.88 4%
Judith K. 10/10 2995 days true 2.88 4%
Amanda Wallace 9/10 2995 days true 2.88 4%
Mark Aarts 10/10 2996 days true 2.88 4%
Forestal Youri 9/10 2997 days true 2.87 4%
Dave and Lin Mungham 10/10 2998 days true 2.87 4%
Jane Hancock 10/10 3000 days true 2.87 4%
Stephi 10/10 3005 days 2.38 3%
Amanda 10/10 3005 days 2.38 3%
Mick Doherty 9/10 3036 days 2.34 3%
hendrik king 7/10 3036 days 2.34 3%
Shoe 10/10 3067 days 2.3 3%
marcvergroesen 9/10 3280 days 2.01 2%
Jenny Leyland 9/10 3280 days 2.01 2%
MarcyMark 10/10 3311 days 1.96 2%
katrina Marshall 10/10 3328 days true 2.33 3%
Von 9/10 3342 days 1.92 2%
Judith 8/10 3348 days true 2.3 3%
Doris Resch 10/10 3348 days true 2.3 3%
Sheila Morgan 10/10 3351 days true 2.29 3%
Maria Newton 9/10 3352 days true 2.29 3%
Faller 10/10 3365 days true 2.27 3%
Wim Van Gastel 8/10 3368 days true 2.26 3%
Laura Walters 9/10 3369 days true 2.26 3%
Chance McGuire 10/10 3370 days 1.88 2%
cees juffermans 9/10 3383 days true 2.24 3%
Markus 10/10 3386 days true 2.23 3%
Grainne Ahern 10/10 3401 days 1.84 2%
sutuckey 10/10 3401 days 1.84 2%
Honeymooners 10/10 3401 days 1.84 2%
sophiep 9/10 3416 days true 2.18 3%
chuckchallenger 10/10 3432 days 1.8 2%
mdarras 9/10 3436 days true 2.15 3%
joramv 9/10 3436 days true 2.15 3%
Michelle Kraemer 10/10 3439 days true 2.15 3%
Kimberly Skyes 10/10 3439 days true 2.15 3%
Ruth Colmer 9/10 3442 days true 2.14 3%
maleta 8/10 3453 days true 2.12 3%
Simon_and_Jane_OZ 9/10 3645 days 1.51 2%
JoF 10/10 3667 days true 1.77 2%
Christian Kamm 10/10 3673 days true 1.76 2%
Michael Maddams 7/10 3674 days true 1.76 2%
Joanna Harrnon 10/10 3675 days true 1.76 2%
Sarah 8/10 3675 days true 1.76 2%
David 10/10 3676 days 1.46 2%
jjakkeren 9/10 3676 days true 1.76 2%
Alanna 10/10 3677 days true 1.76 2%
ElissaH 10/10 3678 days true 1.75 2%
Andrew Smith 9/10 3682 days true 1.75 2%
Jean 10/10 3692 days true 1.73 2%
CarinaB1 10/10 3697 days true 1.72 2%
Lindsey 9/10 3707 days 1.42 1%
Lisa 10/10 3712 days true 1.7 2%
Laura 8/10 3715 days true 1.69 2%
kiwibrit86 9/10 3717 days 1.41 1%
Visken 10/10 3719 days true 1.69 2%
Christina 10/10 3724 days true 1.68 2%
RachaelO 10/10 3726 days true 1.68 2%
Marianne 10/10 3726 days true 1.68 2%
Peppa 10/10 3726 days true 1.68 2%
Jackie 9/10 3740 days true 1.65 2%
Patrick 9/10 3740 days true 1.65 2%
Carla 8/10 3742 days true 1.65 2%
Keith 10/10 3747 days 1.37 1%
Saskia 9/10 3748 days true 1.64 2%
Patrick 10/10 3752 days true 1.63 2%
Charlie 9/10 3756 days true 1.63 2%
Ten 10/10 3756 days true 1.63 2%
Kevin Dangerfield 10/10 3765 days 1.34 1%
Graham 9/10 3780 days true 1.59 2%
David 10/10 3789 days true 1.57 2%
Eveline 10/10 3789 days true 1.57 2%
Mette 10/10 3796 days true 1.56 2%
Rowan 9/10 3821 days true 1.52 2%
Hanna 10/10 3821 days true 1.52 2%
Sally Walker 10/10 3827 days 1.26 1%
abby 10/10 3832 days true 1.5 2%
Paul 10/10 3843 days true 1.48 2%
Peter 10/10 3851 days true 1.47 2%
Anna 10/10 3873 days true 1.43 1%
Liz 9/10 3882 days true 1.42 1%
Laura 8/10 3882 days true 1.42 1%
Amy Shields 7/10 3886 days true 1.41 1%
Erin 9/10 3894 days true 1.4 1%
George Burgas 7/10 3900 days true 1.39 1%
Sharon Curly 7/10 3908 days true 1.38 1%
Peddy 8/10 3911 days 1.14 1%
Christine 9/10 3924 days true 1.35 1%
Charlie Bond 8/10 3957 days true 1.3 1%
SandyS 10/10 4010 days 1.01 1%
BexStar 10/10 4024 days 0.99 1%
Galen 9/10 4042 days true 1.16 1%
Monica Black 10/10 4042 days true 1.16 1%
Denise 10/10 4059 days true 1.13 1%
Ria 9/10 4063 days true 1.12 1%
Christian 7/10 4063 days true 1.12 1%
Wiebke 9/10 4067 days true 1.11 1%
Phil Connelly 9/10 4068 days true 1.11 1%
Amanda 9/10 4074 days true 1.1 1%
Erwin de Kleijn 9/10 4081 days true 1.09 1%
Nick 10/10 4090 days true 1.08 1%
John 9/10 4090 days true 1.08 1%
Sandra Gustafson 10/10 4118 days true 1.03 1%
Jo 10/10 4118 days true 1.03 1%
Helena 10/10 4119 days true 1.03 1%
Seldam 8/10 4124 days true 1.02 1%
Andrew Purdam 7/10 4132 days 0.84 1%
Gerber Liselotte 10/10 4150 days true 0.98 1%
Gabriela Herger 8/10 4158 days true 0.96 1%
Jane Coleman 8/10 4161 days true 0.96 1%
Wendy Williams 9/10 4168 days true 0.95 1%
Claire 8/10 4391 days true 0.58 0%
Will 9/10 4391 days true 0.58 0%
JanKovar 10/10 4393 days true 0.58 0%
Justin 10/10 4396 days true 0.57 0%
Beth 9/10 4402 days true 0.56 0%
Hanneke 9/10 4403 days true 0.56 0%
Cat 8/10 4405 days true 0.56 0%
MartinTrenker 9/10 4411 days true 0.55 0%
Janneke 10/10 4412 days true 0.55 0%
Renee 9/10 4415 days true 0.54 0%
Elke 8/10 4431 days true 0.52 0%
Malon 10/10 4432 days true 0.51 0%
Ralph 10/10 4441 days true 0.5 0%
Lucy 10/10 4441 days true 0.5 0%
Gordon 8/10 4453 days true 0.48 0%
Beate 9/10 4454 days true 0.48 0%
MartinJago 8/10 4465 days true 0.46 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.

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