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 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.

Nick Morrison's avatar

Nick Morrison

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

92.66%

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
Samantha Brewin 10/10 825 days 16.55 100%
Mark Ashmore 10/10 1041 days true 5.46 33%
Tim Struessmann 7/10 1058 days true 4.75 29%
Fran and Ben 10/10 1074 days true 5.07 31%
Alex Hah 9/10 1100 days true 4.99 30%
Matthew 8/10 1110 days true 4.72 29%
Stefania Colla 10/10 1118 days 4.95 30%
Rick Semo 10/10 1118 days 4.95 30%
Jessica Freeland 9/10 1135 days true 4.92 30%
Ane Pujol 10/10 1139 days true 4.91 30%
Nicole Joersen 9/10 1157 days true 4.88 29%
Matthus Groem 9/10 1157 days true 4.88 29%
Kristin Pogue 10/10 1396 days true 4.41 27%
Molly Bogeberg 9/10 1418 days true 4.37 26%
Hugo Alfonso 10/10 1424 days 4.36 26%
Bill Priddy 10/10 1424 days 4.36 26%
Stephen Ophelder 10/10 1424 days true 4.36 26%
Horitz 10/10 1437 days true 4.33 26%
Lindsay Dell 9/10 1447 days true 4.31 26%
Florian Bellark 9/10 1449 days true 4.31 26%
Gonne Clasen 7/10 1467 days true 3.89 23%
Gregory 9/10 1470 days true 4.27 26%
Maxime Louis 10/10 1474 days true 4.26 26%
dror cohen 10/10 1484 days 4.24 26%
Ludo and Cha 8/10 1509 days true 3.98 24%
Graham Lighner 9/10 1525 days true 4.16 25%
Iris Gigacher 9/10 1543 days true 4.12 25%
Jennifer Brown 10/10 1545 days 4.12 25%
Emma 10/10 1790 days 3.64 22%
Jam Boggomann 7/10 1876 days true 3.16 19%
Claudia de Winter 8/10 2126 days true 2.83 17%
Brian Lexmond 6/10 2127 days true 2.47 15%
Simeon W 9/10 2137 days true 2.96 18%
Daniel Robledo 9/10 2156 days true 2.92 18%
Maria Camen Santos Lopez 9/10 2156 days true 2.92 18%
Maria = Moller Hansen 10/10 2166 days true 2.9 18%
Bjorn Houlberg 10/10 2166 days true 2.9 18%
Michael Uebe 8/10 2186 days true 2.72 16%
Daniel McAlpine 10/10 2219 days true 2.8 17%
Kellie 10/10 2219 days true 2.8 17%
Fjord 10/10 2504 days true 2.24 14%
Maria Klister 10/10 2504 days true 2.24 14%
Friederike 10/10 2504 days true 2.24 14%
Raelene Vine 10/10 2520 days 2.21 13%
Jeremy Eng 8/10 2520 days 2.1 13%
Luisa 10/10 2525 days true 2.2 13%
Sohie 10/10 2525 days true 2.2 13%
Nigel Leighton 10/10 2598 days true 2.06 12%
Jonathan Vondette 9/10 2601 days true 2.05 12%
D Pieter 6/10 2608 days true 1.69 10%
Anne Sutkowi 10/10 2610 days 2.04 12%
Karsten Meyer 8/10 2625 days true 1.91 12%
Green UK 9/10 2866 days true 1.53 9%
Michael Neumann 9/10 2872 days true 1.52 9%
jackson78 10/10 2945 days 1.38 8%
C 10/10 2945 days 1.38 8%
Extremo 10/10 2976 days 1.32 8%
Allan Johnston 10/10 3037 days 1.2 7%
Jorge Martinez Gacio 8/10 3231 days true 0.78 5%
Boi Sagarra 7/10 3234 days true 0.74 4%
Margit and Corein Groenevelt 8/10 3237 days true 0.77 5%
Mulder & vanNistelrooij 8/10 3242 days true 0.76 5%
Fabrizio Consolini 8/10 3242 days true 0.76 5%
Estel la Prado 10/10 3245 days true 0.79 5%
Susan Herd 9/10 3246 days true 0.79 5%
Jessica Vogels 9/10 3249 days true 0.78 5%
Emma Ducat 10/10 3251 days 0.78 5%
Melanie Gruber 10/10 3252 days true 0.78 5%
Lukis Haertel 9/10 3276 days true 0.73 4%
ccthornton100 9/10 3616 days 0.07 0%
Nicky and Andy Prescott 10/10 3618 days true 0.06 0%
David Morton 8/10 3618 days true 0.06 0%
Thomas K 9/10 3625 days true 0.05 0%
Belinda Godhard 9/10 3641 days true 0.02 0%
Thomas Stopp 9/10 3644 days true 0.01 0%
joannaw 9/10 3691 days true 0.0 0%
Simon Slawner 9/10 3708 days true 0.0 0%
Thorben Thede 7/10 3718 days true 0.0 0%
anne p 7/10 3729 days true 0.0 0%
eric14 8/10 3767 days 0.0 0%
Sam819 10/10 3767 days 0.0 0%
SandraThomas 10/10 3767 days 0.0 0%
MarielR 8/10 3968 days true 0.0 0%
Donna 10/10 3976 days true 0.0 0%
Sam Marshall 7/10 3978 days 0.0 0%
Peter 9/10 3999 days true 0.0 0%
Hans 8/10 3999 days true 0.0 0%
ali_m 10/10 4019 days 0.0 0%
Emily 10/10 4058 days 0.0 0%
Tom 10/10 4067 days 0.0 0%
Aoife 9/10 4125 days true 0.0 0%
Shannon 5/10 4199 days true 0.0 0%
Martin 9/10 4218 days true 0.0 0%
Eric Campbell 10/10 4237 days 0.0 0%
Corin Kraft 10/10 4292 days true 0.0 0%
hobl 10/10 4300 days 0.0 0%
cyntha rams 10/10 4325 days 0.0 0%
Katy Bray 9/10 4330 days true 0.0 0%
Vicki 9/10 4348 days true 0.0 0%
Walter 9/10 4364 days true 0.0 0%
Sabine 10/10 4364 days true 0.0 0%
Dupre 8/10 4419 days true 0.0 0%
Kate and Dave 10/10 4552 days true 0.0 0%
Susan 9/10 4700 days true 0.0 0%
Peter 8/10 4720 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 Roscos Milford Kayaks experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 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 199 days.

The Roscos Milford Kayaks experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

89%

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.