Hi, 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 Roscos Milford Kayaks.

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.

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Cymen Crick's avatar

Cymen Crick

Rankers Owner

Roscos Milford Kayaks

Valid Reviews

105 Valid Reviews

The Roscos Milford Kayaks experience has a total of 106 reviews. There are 105 valid reviews that are included when calculating the ranking score and 1 invalid review 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 105 valid reviews:

Rating Count Percentage
10/10 47
45%
9/10 32
30%
8/10 16
15%
7/10 7
7%
6/10 2
2%
5/10 1
1%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.67% Average

The raw data average (mean) for all the Roscos Milford Kayaks valid reviews is 90.67% and is based on 105 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

78 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 105 valid reviews, the experience has 78 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 78 face-to-face reviews:

Rating Count Percentage
10/10 24
31%
9/10 31
40%
8/10 14
18%
7/10 6
8%
6/10 2
3%
5/10 1
1%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

88.46% Average

The raw data average (mean) for all the Roscos Milford Kayaks face-to-face reviews is 88.46% and is based on 78 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

91.26%

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
Samantha Brewin 10/10 2678 days 100%
Mark Ashmore 10/10 2894 days 87%
Tim Struessmann 7/10 2911 days 80%
Fran and Ben 10/10 2927 days 85%
Alex Hah 9/10 2953 days 83%
Matthew 8/10 2963 days 82%
Stefania Colla 10/10 2971 days 83%
Rick Semo 10/10 2971 days 83%
Jessica Freeland 9/10 2988 days 81%
Ane Pujol 10/10 2992 days 82%
Nicole Joersen 9/10 3010 days 80%
Matthus Groem 9/10 3010 days 80%
Kristin Pogue 10/10 3249 days 66%
Molly Bogeberg 9/10 3271 days 64%
Hugo Alfonso 10/10 3277 days 65%
Bill Priddy 10/10 3277 days 65%
Stephen Ophelder 10/10 3277 days 65%
Horitz 10/10 3290 days 64%
Lindsay Dell 9/10 3300 days 63%
Florian Bellark 9/10 3302 days 63%
Gonne Clasen 7/10 3320 days 58%
Gregory 9/10 3323 days 61%
Maxime Louis 10/10 3327 days 62%
dror cohen 10/10 3337 days 61%
Ludo and Cha 8/10 3362 days 59%
Graham Lighner 9/10 3378 days 58%
Iris Gigacher 9/10 3396 days 57%
Jennifer Brown 10/10 3398 days 58%
Emma 10/10 3643 days 43%
Jam Boggomann 7/10 3729 days 36%
Claudia de Winter 8/10 3979 days 23%
Brian Lexmond 6/10 3980 days 20%
Simeon W 9/10 3990 days 23%
Daniel Robledo 9/10 4009 days 21%
Maria Camen Santos Lopez 9/10 4009 days 21%
Maria = Moller Hansen 10/10 4019 days 21%
Bjorn Houlberg 10/10 4019 days 21%
Michael Uebe 8/10 4039 days 20%
Daniel McAlpine 10/10 4072 days 18%
Kellie 10/10 4072 days 18%
Fjord 10/10 4357 days 1%
Maria Klister 10/10 4357 days 1%
Friederike 10/10 4357 days 1%
Raelene Vine 10/10 4373 days 0%
Jeremy Eng 8/10 4373 days 0%
Luisa 10/10 4378 days 0%
Sohie 10/10 4378 days 0%
Nigel Leighton 10/10 4451 days 30%
Jonathan Vondette 9/10 4454 days 30%
D Pieter 6/10 4461 days 26%
Anne Sutkowi 10/10 4463 days 30%
Karsten Meyer 8/10 4478 days 29%
Green UK 9/10 4719 days 30%
Michael Neumann 9/10 4725 days 30%
jackson78 10/10 4798 days 30%
C 10/10 4798 days 30%
Extremo 10/10 4829 days 30%
Allan Johnston 10/10 4890 days 30%
Jorge Martinez Gacio 8/10 5084 days 29%
Boi Sagarra 7/10 5087 days 28%
Margit and Corein Groenevelt 8/10 5090 days 29%
Mulder & vanNistelrooij 8/10 5095 days 29%
Fabrizio Consolini 8/10 5095 days 29%
Estel la Prado 10/10 5098 days 30%
Susan Herd 9/10 5099 days 30%
Jessica Vogels 9/10 5102 days 30%
Emma Ducat 10/10 5104 days 30%
Melanie Gruber 10/10 5105 days 30%
Lukis Haertel 9/10 5129 days 30%
ccthornton100 9/10 5469 days 30%
Nicky and Andy Prescott 10/10 5471 days 30%
David Morton 8/10 5471 days 29%
Thomas K 9/10 5478 days 30%
Belinda Godhard 9/10 5494 days 30%
Thomas Stopp 9/10 5497 days 30%
joannaw 9/10 5544 days 30%
Simon Slawner 9/10 5561 days 30%
Thorben Thede 7/10 5571 days 28%
anne p 7/10 5582 days 28%
eric14 8/10 5620 days 29%
Sam819 10/10 5620 days 30%
SandraThomas 10/10 5620 days 30%
MarielR 8/10 5821 days 29%
Donna 10/10 5828 days 30%
Sam Marshall 7/10 5831 days 28%
Peter 9/10 5851 days 30%
Hans 8/10 5851 days 29%
ali_m 10/10 5872 days 30%
Emily 10/10 5911 days 30%
Tom 10/10 5920 days 30%
Aoife 9/10 5978 days 30%
Shannon 5/10 6051 days 23%
Martin 9/10 6070 days 30%
Eric Campbell 10/10 6090 days 30%
Corin Kraft 10/10 6145 days 30%
hobl 10/10 6153 days 30%
cyntha rams 10/10 6177 days 30%
Katy Bray 9/10 6183 days 30%
Vicki 9/10 6201 days 30%
Walter 9/10 6217 days 30%
Sabine 10/10 6217 days 30%
Dupre 8/10 6272 days 29%
Kate and Dave 10/10 6405 days 30%
Susan 9/10 6553 days 30%
Peter 8/10 6573 days 29%

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 Roscos Milford Kayaks experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 53 days. However the Roscos Milford Kayaks 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 Roscos Milford Kayaks experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.08%
198 -4.10%
199 -4.13%
200 -4.15%
201 -4.17%
202 -4.19%
203 -4.21%

Balancing Adjustment

1.44% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

89%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.