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

94.08%

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 9/10 944 days true 8.61 100%
Stefan Zink 10/10 1196 days true 4.8 56%
Fentrup 9/10 1202 days true 4.79 56%
Katharina Koch 10/10 1206 days true 4.78 56%
Aurelie and Ben Marie 9/10 1208 days true 4.78 55%
Sebastian Braun 9/10 1296 days true 4.61 53%
Joanne Woo 10/10 1313 days 4.57 53%
Chris 6/10 1344 days 3.75 43%
Olivier Reculeau 10/10 1530 days true 4.15 48%
Susanne Breudel 10/10 1535 days true 4.14 48%
Josh Legge 10/10 1543 days true 4.12 48%
Daniel Weber 9/10 1545 days true 4.12 48%
Virginia Fradin 10/10 1549 days true 4.11 48%
Olivier Anciaux 9/10 1552 days true 4.11 48%
Wendy van Boom 10/10 1552 days true 4.11 48%
Bas Hoogteijling 10/10 1555 days true 4.1 48%
Mira Huckfield 10/10 1565 days true 4.08 47%
Maike Santelmann 10/10 1577 days true 4.06 47%
Levin Stuers 10/10 1582 days true 4.05 47%
magdalena gomez haedo 9/10 1585 days 4.04 47%
Lucca Weisbender 10/10 1587 days 4.04 47%
Anna Scholten 10/10 1588 days true 4.04 47%
Nils Kissel 10/10 1598 days 4.02 47%
Madita and Lisann 10/10 1634 days true 3.95 46%
sanneke tangel 10/10 1640 days true 3.93 46%
Georgia Coleman 10/10 1640 days true 3.93 46%
Virgil Spruit 8/10 1644 days true 3.73 43%
Xue Rong Kok 7/10 1649 days 3.56 41%
Anthony Jacobs 10/10 1771 days 3.68 43%
Sofie Jebsen 10/10 1914 days true 3.4 39%
Tobias 10/10 1914 days true 3.4 39%
Annika Funk 10/10 1950 days true 3.33 39%
Dawn Mulligan 10/10 1966 days true 3.3 38%
Christophe Scieszka 10/10 1983 days 3.26 38%
Hubert 8/10 2023 days true 3.02 35%
Ondrej Stepanek 8/10 2259 days true 2.59 30%
Boneschova Jarka 10/10 2259 days true 2.72 32%
Heike Heller 10/10 2268 days true 2.7 31%
Andreas Mouteiro 9/10 2268 days true 2.7 31%
Josefin Lind 10/10 2269 days true 2.7 31%
Herman Holmgist 10/10 2269 days true 2.7 31%
Felicitas 9/10 2291 days true 2.66 31%
Antoine 8/10 2299 days true 2.51 29%
Mara K 10/10 2318 days 2.61 30%
Emilie Chanbon 10/10 2321 days true 2.6 30%
Alexis Redor 10/10 2321 days true 2.6 30%
Julia Amberger 8/10 2340 days true 2.44 28%
Annalina Drebald 8/10 2340 days true 2.44 28%
balesdent 9/10 2346 days true 2.55 30%
Alineet Gautier 10/10 2349 days true 2.55 30%
Annika Schmidt 10/10 2629 days true 2.0 23%
Patrick Stoeit 10/10 2629 days true 2.0 23%
Audrey Ripoche 9/10 2631 days true 1.99 23%
Rey Germain 9/10 2631 days true 1.99 23%
Christofer Tonn 10/10 2641 days true 1.97 23%
Ann Furlong 10/10 2649 days true 1.96 23%
Trudy Ryan 8/10 2649 days true 1.86 22%
Jill Fischer 10/10 2655 days 1.95 23%
Kim 10/10 2655 days 1.95 23%
Francois Marchar 9/10 2665 days true 1.93 22%
Jan Zimmerman 10/10 2670 days true 1.92 22%
Elvin Teo 10/10 2683 days 1.89 22%
Rob 9/10 2731 days true 1.8 21%
Andreas Garbin 10/10 2733 days true 1.79 21%
Joanna 9/10 2751 days true 1.76 20%
Mellow 10/10 2775 days 1.71 20%
whalelover88 10/10 2928 days 1.41 16%
Jos Schieveen 8/10 2999 days true 1.21 14%
Goran Backlund 9/10 3005 days true 1.26 15%
Nathan Sait 10/10 3012 days true 1.25 14%
Toby Clark 10/10 3012 days true 1.25 14%
Maxine Gilman 10/10 3015 days true 1.24 14%
Harald 9/10 3029 days true 1.22 14%
Dominik Langenegger 9/10 3031 days true 1.21 14%
Rebecca Richardson 9/10 3031 days true 1.21 14%
Andrew Powell 9/10 3031 days true 1.21 14%
Peter Field 10/10 3031 days true 1.21 14%
Eric Lombaard 8/10 3032 days true 1.15 13%
Nicholas Prakenhammar 10/10 3033 days true 1.21 14%
Peter Wall 7/10 3033 days true 1.1 13%
Verne Heath 8/10 3034 days true 1.15 13%
John O'Donnell 10/10 3035 days true 1.2 14%
Paul Fairbrass 10/10 3042 days true 1.19 14%
Frank Krivauek 10/10 3043 days true 1.19 14%
Rocco Christian 7/10 3043 days true 1.08 13%
Kurt & Noemi Buhler 7/10 3044 days true 1.08 13%
Therese 7/10 3047 days true 1.07 12%
Katie K 9/10 3058 days true 1.16 13%
CMJ 10/10 3080 days 1.12 13%
Jacqueline 10/10 3111 days 1.05 12%
Marc & Pauline 9/10 3117 days true 1.04 12%
Kevin & Chris 9/10 3118 days true 1.04 12%
Robin & Sandra Dijke 9/10 3120 days true 1.04 12%
Laura McCusker 8/10 3127 days true 0.97 11%
Dexter 10/10 3325 days 0.64 7%
Jasmin Loeffler 10/10 3331 days true 0.62 7%
Natascha Rachel 10/10 3331 days true 0.62 7%
Res Kormann 10/10 3344 days true 0.6 7%
Sarah James 10/10 3354 days true 0.58 7%
Nick Taylor 10/10 3354 days true 0.58 7%
Nicola Young 10/10 3354 days true 0.58 7%
Stefan Elsenbruch 9/10 3359 days true 0.57 7%
Stefanie 7/10 3369 days true 0.5 6%
Koen Vanlede 10/10 3372 days true 0.54 6%
Van Vliet 8/10 3373 days true 0.51 6%
Vanessa Vogel 10/10 3376 days true 0.54 6%
Marcel Camsch 9/10 3378 days true 0.53 6%
Keely & Mark Haynes 10/10 3379 days true 0.53 6%
Svea Sauter 10/10 3379 days true 0.53 6%
henriket 10/10 3380 days true 0.53 6%
Amanda Wells 10/10 3380 days true 0.53 6%
K & J Overton 9/10 3380 days true 0.53 6%
Jerry & Floon 9/10 3384 days true 0.52 6%
Bartl 10/10 3384 days true 0.52 6%
travellingfamilyof6 10/10 3386 days 0.52 6%
WeddingMaven 10/10 3386 days 0.52 6%
Lieve Verdonck 8/10 3387 days true 0.49 6%
Victoria Purver 8/10 3389 days true 0.49 6%
Thelia Beament 9/10 3389 days true 0.51 6%
Edwards 9/10 3393 days true 0.5 6%
Mark Irwin 9/10 3397 days true 0.5 6%
Agnes McMillan 10/10 3398 days true 0.49 6%
Leslie 9/10 3398 days true 0.49 6%
Selina Mueller 10/10 3400 days true 0.49 6%
Jill Dean 10/10 3401 days true 0.49 6%
Chloe Finster 10/10 3401 days true 0.49 6%
Vanderhorst 9/10 3402 days true 0.49 6%
Judith K. 10/10 3404 days true 0.48 6%
Amanda Wallace 9/10 3404 days true 0.48 6%
Mark Aarts 10/10 3405 days true 0.48 6%
Forestal Youri 9/10 3406 days true 0.48 6%
Dave and Lin Mungham 10/10 3407 days true 0.48 6%
Jane Hancock 10/10 3409 days true 0.47 5%
Stephi 10/10 3414 days 0.46 5%
Amanda 10/10 3414 days 0.46 5%
Mick Doherty 9/10 3445 days 0.4 5%
hendrik king 7/10 3445 days 0.37 4%
Shoe 10/10 3476 days 0.34 4%
marcvergroesen 9/10 3690 days 0.0 0%
Jenny Leyland 9/10 3690 days 0.0 0%
MarcyMark 10/10 3720 days 0.0 0%
katrina Marshall 10/10 3737 days true 0.0 0%
Von 9/10 3751 days 0.0 0%
Judith 8/10 3757 days true 0.0 0%
Doris Resch 10/10 3757 days true 0.0 0%
Sheila Morgan 10/10 3760 days true 0.0 0%
Maria Newton 9/10 3761 days true 0.0 0%
Faller 10/10 3774 days true 0.0 0%
Wim Van Gastel 8/10 3777 days true 0.0 0%
Laura Walters 9/10 3778 days true 0.0 0%
Chance McGuire 10/10 3779 days 0.0 0%
cees juffermans 9/10 3792 days true 0.0 0%
Markus 10/10 3795 days true 0.0 0%
Grainne Ahern 10/10 3810 days 0.0 0%
sutuckey 10/10 3810 days 0.0 0%
Honeymooners 10/10 3810 days 0.0 0%
sophiep 9/10 3825 days true 0.0 0%
chuckchallenger 10/10 3841 days 0.0 0%
mdarras 9/10 3845 days true 0.0 0%
joramv 9/10 3845 days true 0.0 0%
Michelle Kraemer 10/10 3848 days true 0.0 0%
Kimberly Skyes 10/10 3848 days true 0.0 0%
Ruth Colmer 9/10 3851 days true 0.0 0%
maleta 8/10 3862 days true 0.0 0%
Simon_and_Jane_OZ 9/10 4055 days 0.0 0%
JoF 10/10 4077 days true 0.0 0%
Christian Kamm 10/10 4082 days true 0.0 0%
Michael Maddams 7/10 4083 days true 0.0 0%
Joanna Harrnon 10/10 4084 days true 0.0 0%
Sarah 8/10 4084 days true 0.0 0%
David 10/10 4085 days 0.0 0%
jjakkeren 9/10 4085 days true 0.0 0%
Alanna 10/10 4086 days true 0.0 0%
ElissaH 10/10 4087 days true 0.0 0%
Andrew Smith 9/10 4091 days true 0.0 0%
Jean 10/10 4101 days true 0.0 0%
CarinaB1 10/10 4106 days true 0.0 0%
Lindsey 9/10 4116 days 0.0 0%
Lisa 10/10 4121 days true 0.0 0%
Laura 8/10 4124 days true 0.0 0%
kiwibrit86 9/10 4126 days 0.0 0%
Visken 10/10 4128 days true 0.0 0%
Christina 10/10 4133 days true 0.0 0%
RachaelO 10/10 4135 days true 0.0 0%
Marianne 10/10 4135 days true 0.0 0%
Peppa 10/10 4135 days true 0.0 0%
Jackie 9/10 4149 days true 0.0 0%
Patrick 9/10 4149 days true 0.0 0%
Carla 8/10 4151 days true 0.0 0%
Keith 10/10 4157 days 0.0 0%
Saskia 9/10 4157 days true 0.0 0%
Patrick 10/10 4161 days true 0.0 0%
Charlie 9/10 4165 days true 0.0 0%
Ten 10/10 4165 days true 0.0 0%
Kevin Dangerfield 10/10 4174 days 0.0 0%
Graham 9/10 4189 days true 0.0 0%
David 10/10 4198 days true 0.0 0%
Eveline 10/10 4198 days true 0.0 0%
Mette 10/10 4205 days true 0.0 0%
Rowan 9/10 4230 days true 0.0 0%
Hanna 10/10 4230 days true 0.0 0%
Sally Walker 10/10 4236 days 0.0 0%
abby 10/10 4242 days true 0.0 0%
Paul 10/10 4252 days true 0.0 0%
Peter 10/10 4260 days true 0.0 0%
Anna 10/10 4282 days true 0.0 0%
Liz 9/10 4291 days true 0.0 0%
Laura 8/10 4291 days true 0.0 0%
Amy Shields 7/10 4295 days true 0.0 0%
Erin 9/10 4303 days true 0.0 0%
George Burgas 7/10 4309 days true 0.0 0%
Sharon Curly 7/10 4317 days true 0.0 0%
Peddy 8/10 4320 days 0.0 0%
Christine 9/10 4333 days true 0.0 0%
Charlie Bond 8/10 4366 days true 0.0 0%
SandyS 10/10 4420 days 0.0 0%
BexStar 10/10 4433 days 0.0 0%
Galen 9/10 4451 days true 0.0 0%
Monica Black 10/10 4451 days true 0.0 0%
Denise 10/10 4468 days true 0.0 0%
Ria 9/10 4472 days true 0.0 0%
Christian 7/10 4472 days true 0.0 0%
Wiebke 9/10 4476 days true 0.0 0%
Phil Connelly 9/10 4477 days true 0.0 0%
Amanda 9/10 4483 days true 0.0 0%
Erwin de Kleijn 9/10 4490 days true 0.0 0%
Nick 10/10 4499 days true 0.0 0%
John 9/10 4499 days true 0.0 0%
Sandra Gustafson 10/10 4527 days true 0.0 0%
Jo 10/10 4527 days true 0.0 0%
Helena 10/10 4528 days true 0.0 0%
Seldam 8/10 4533 days true 0.0 0%
Andrew Purdam 7/10 4541 days 0.0 0%
Gerber Liselotte 10/10 4559 days true 0.0 0%
Gabriela Herger 8/10 4567 days true 0.0 0%
Jane Coleman 8/10 4570 days true 0.0 0%
Wendy Williams 9/10 4577 days true 0.0 0%
Claire 8/10 4801 days true 0.0 0%
Will 9/10 4801 days true 0.0 0%
JanKovar 10/10 4803 days true 0.0 0%
Justin 10/10 4806 days true 0.0 0%
Beth 9/10 4812 days true 0.0 0%
Hanneke 9/10 4813 days true 0.0 0%
Cat 8/10 4815 days true 0.0 0%
MartinTrenker 9/10 4821 days true 0.0 0%
Janneke 10/10 4822 days true 0.0 0%
Renee 9/10 4825 days true 0.0 0%
Elke 8/10 4840 days true 0.0 0%
Malon 10/10 4841 days true 0.0 0%
Ralph 10/10 4850 days true 0.0 0%
Lucy 10/10 4850 days true 0.0 0%
Gordon 8/10 4862 days true 0.0 0%
Beate 9/10 4863 days true 0.0 0%
MartinJago 8/10 4874 days true 0.0 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

-2.33% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 111 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 -2.29%
198 -2.30%
199 -2.32%
200 -2.33%
201 -2.34%
202 -2.35%
203 -2.36%

Final Ranking Score

92%

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.