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

91.94%

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 10/10 423 days 71.65 100%
Mark Ashmore 10/10 639 days true 45.54 63%
Tim Struessmann 7/10 656 days true 42.65 59%
Fran and Ben 10/10 672 days true 40.02 55%
Alex Hah 9/10 698 days true 35.97 50%
Matthew 8/10 708 days true 34.48 48%
Stefania Colla 10/10 716 days 27.76 38%
Rick Semo 10/10 716 days 27.76 38%
Jessica Freeland 9/10 733 days true 30.92 43%
Ane Pujol 10/10 737 days true 30.37 42%
Nicole Joersen 9/10 755 days true 27.98 38%
Matthus Groem 9/10 755 days true 27.98 38%
Kristin Pogue 10/10 994 days true 7.94 10%
Molly Bogeberg 9/10 1016 days true 7.19 9%
Hugo Alfonso 10/10 1022 days 5.84 7%
Bill Priddy 10/10 1022 days 5.84 7%
Stephen Ophelder 10/10 1022 days true 7.01 9%
Horitz 10/10 1035 days true 6.68 8%
Lindsay Dell 9/10 1045 days true 6.48 8%
Florian Bellark 9/10 1047 days true 6.44 8%
Gonne Clasen 7/10 1065 days true 6.17 8%
Gregory 9/10 1068 days true 6.14 8%
Maxime Louis 10/10 1072 days true 6.1 8%
dror cohen 10/10 1082 days 5.03 6%
Ludo and Cha 8/10 1107 days true 5.98 7%
Graham Lighner 9/10 1123 days true 5.95 7%
Iris Gigacher 9/10 1141 days true 5.92 7%
Jennifer Brown 10/10 1143 days 4.93 6%
Emma 10/10 1388 days 4.6 5%
Jam Boggomann 7/10 1474 days true 5.38 7%
Claudia de Winter 8/10 1724 days true 4.97 6%
Brian Lexmond 6/10 1725 days true 4.96 6%
Simeon W 9/10 1735 days true 4.95 6%
Daniel Robledo 9/10 1754 days true 4.92 6%
Maria Camen Santos Lopez 9/10 1754 days true 4.92 6%
Maria = Moller Hansen 10/10 1764 days true 4.9 6%
Bjorn Houlberg 10/10 1764 days true 4.9 6%
Michael Uebe 8/10 1784 days true 4.87 6%
Daniel McAlpine 10/10 1817 days true 4.81 6%
Kellie 10/10 1817 days true 4.81 6%
Fjord 10/10 2102 days true 4.34 5%
Maria Klister 10/10 2102 days true 4.34 5%
Friederike 10/10 2102 days true 4.34 5%
Raelene Vine 10/10 2118 days 3.6 4%
Jeremy Eng 8/10 2118 days 3.6 4%
Luisa 10/10 2123 days true 4.31 5%
Sohie 10/10 2123 days true 4.31 5%
Nigel Leighton 10/10 2196 days true 4.19 5%
Jonathan Vondette 9/10 2199 days true 4.19 5%
D Pieter 6/10 2206 days true 4.17 5%
Anne Sutkowi 10/10 2208 days 3.48 4%
Karsten Meyer 8/10 2223 days true 4.15 5%
Green UK 9/10 2464 days true 3.75 4%
Michael Neumann 9/10 2470 days true 3.74 4%
jackson78 10/10 2543 days 3.02 3%
C 10/10 2543 days 3.02 3%
Extremo 10/10 2574 days 2.97 3%
Allan Johnston 10/10 2635 days 2.89 3%
Jorge Martinez Gacio 8/10 2829 days true 3.15 3%
Boi Sagarra 7/10 2832 days true 3.14 3%
Margit and Corein Groenevelt 8/10 2835 days true 3.14 3%
Mulder & vanNistelrooij 8/10 2840 days true 3.13 3%
Fabrizio Consolini 8/10 2840 days true 3.13 3%
Estel la Prado 10/10 2843 days true 3.13 3%
Susan Herd 9/10 2844 days true 3.12 3%
Jessica Vogels 9/10 2847 days true 3.12 3%
Emma Ducat 10/10 2849 days 2.6 3%
Melanie Gruber 10/10 2850 days true 3.12 3%
Lukis Haertel 9/10 2874 days true 3.08 3%
ccthornton100 9/10 3214 days 2.1 2%
Nicky and Andy Prescott 10/10 3216 days true 2.51 3%
David Morton 8/10 3216 days true 2.51 3%
Thomas K 9/10 3223 days true 2.5 3%
Belinda Godhard 9/10 3239 days true 2.48 3%
Thomas Stopp 9/10 3242 days true 2.47 2%
joannaw 9/10 3289 days true 2.39 2%
Simon Slawner 9/10 3306 days true 2.37 2%
Thorben Thede 7/10 3316 days true 2.35 2%
anne p 7/10 3327 days true 2.33 2%
eric14 8/10 3365 days 1.89 2%
Sam819 10/10 3365 days 1.89 2%
SandraThomas 10/10 3365 days 1.89 2%
MarielR 8/10 3566 days true 1.94 2%
Donna 10/10 3574 days true 1.92 2%
Sam Marshall 7/10 3577 days 1.6 1%
Peter 9/10 3597 days true 1.89 2%
Hans 8/10 3597 days true 1.89 2%
ali_m 10/10 3617 days 1.55 1%
Emily 10/10 3656 days 1.49 1%
Tom 10/10 3665 days 1.48 1%
Aoife 9/10 3723 days true 1.68 1%
Shannon 5/10 3797 days true 1.56 1%
Martin 9/10 3816 days true 1.53 1%
Eric Campbell 10/10 3836 days 1.25 1%
Corin Kraft 10/10 3890 days true 1.41 1%
hobl 10/10 3898 days 1.16 1%
cyntha rams 10/10 3923 days 1.13 1%
Katy Bray 9/10 3928 days true 1.34 1%
Vicki 9/10 3946 days true 1.31 1%
Walter 9/10 3962 days true 1.29 1%
Sabine 10/10 3962 days true 1.29 1%
Dupre 8/10 4017 days true 1.2 1%
Kate and Dave 10/10 4150 days true 0.98 0%
Susan 9/10 4298 days true 0.73 0%
Peter 8/10 4318 days true 0.7 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

-7.28% 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 364 days.

The Roscos Milford Kayaks 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

85%

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.