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

92.02%

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 10/10 338 days 81.9 100%
Mark Ashmore 10/10 554 days true 61.65 75%
Tim Struessmann 7/10 571 days true 58.21 71%
Fran and Ben 10/10 587 days true 55.07 67%
Alex Hah 9/10 613 days true 50.18 61%
Matthew 8/10 623 days true 48.36 59%
Stefania Colla 10/10 631 days 39.12 47%
Rick Semo 10/10 631 days 39.12 47%
Jessica Freeland 9/10 648 days true 43.99 53%
Ane Pujol 10/10 652 days true 43.32 52%
Nicole Joersen 9/10 670 days true 40.35 49%
Matthus Groem 9/10 670 days true 40.35 49%
Kristin Pogue 10/10 909 days true 12.58 14%
Molly Bogeberg 9/10 931 days true 11.11 13%
Hugo Alfonso 10/10 937 days 8.96 10%
Bill Priddy 10/10 937 days 8.96 10%
Stephen Ophelder 10/10 937 days true 10.75 12%
Horitz 10/10 950 days true 10.0 11%
Lindsay Dell 9/10 960 days true 9.47 11%
Florian Bellark 9/10 962 days true 9.36 11%
Gonne Clasen 7/10 980 days true 8.51 9%
Gregory 9/10 983 days true 8.39 9%
Maxime Louis 10/10 987 days true 8.22 9%
dror cohen 10/10 997 days 6.52 7%
Ludo and Cha 8/10 1022 days true 7.01 8%
Graham Lighner 9/10 1038 days true 6.62 7%
Iris Gigacher 9/10 1056 days true 6.29 7%
Jennifer Brown 10/10 1058 days 5.22 5%
Emma 10/10 1303 days 4.72 5%
Jam Boggomann 7/10 1389 days true 5.52 6%
Claudia de Winter 8/10 1639 days true 5.11 5%
Brian Lexmond 6/10 1640 days true 5.1 5%
Simeon W 9/10 1650 days true 5.09 5%
Daniel Robledo 9/10 1669 days true 5.06 5%
Maria Camen Santos Lopez 9/10 1669 days true 5.06 5%
Maria = Moller Hansen 10/10 1679 days true 5.04 5%
Bjorn Houlberg 10/10 1679 days true 5.04 5%
Michael Uebe 8/10 1699 days true 5.01 5%
Daniel McAlpine 10/10 1732 days true 4.95 5%
Kellie 10/10 1732 days true 4.95 5%
Fjord 10/10 2017 days true 4.48 4%
Maria Klister 10/10 2017 days true 4.48 4%
Friederike 10/10 2017 days true 4.48 4%
Raelene Vine 10/10 2033 days 3.72 4%
Jeremy Eng 8/10 2033 days 3.72 4%
Luisa 10/10 2038 days true 4.45 4%
Sohie 10/10 2038 days true 4.45 4%
Nigel Leighton 10/10 2111 days true 4.33 4%
Jonathan Vondette 9/10 2114 days true 4.32 4%
D Pieter 6/10 2121 days true 4.31 4%
Anne Sutkowi 10/10 2123 days 3.59 3%
Karsten Meyer 8/10 2138 days true 4.29 4%
Green UK 9/10 2379 days true 3.89 4%
Michael Neumann 9/10 2385 days true 3.88 4%
jackson78 10/10 2458 days 3.13 3%
C 10/10 2458 days 3.13 3%
Extremo 10/10 2489 days 3.09 3%
Allan Johnston 10/10 2550 days 3.01 3%
Jorge Martinez Gacio 8/10 2744 days true 3.29 3%
Boi Sagarra 7/10 2747 days true 3.28 3%
Margit and Corein Groenevelt 8/10 2750 days true 3.28 3%
Mulder & vanNistelrooij 8/10 2755 days true 3.27 3%
Fabrizio Consolini 8/10 2755 days true 3.27 3%
Estel la Prado 10/10 2758 days true 3.27 3%
Susan Herd 9/10 2759 days true 3.26 3%
Jessica Vogels 9/10 2762 days true 3.26 3%
Emma Ducat 10/10 2764 days 2.71 2%
Melanie Gruber 10/10 2765 days true 3.25 3%
Lukis Haertel 9/10 2789 days true 3.22 3%
ccthornton100 9/10 3129 days 2.21 2%
Nicky and Andy Prescott 10/10 3131 days true 2.65 2%
David Morton 8/10 3131 days true 2.65 2%
Thomas K 9/10 3138 days true 2.64 2%
Belinda Godhard 9/10 3154 days true 2.62 2%
Thomas Stopp 9/10 3157 days true 2.61 2%
joannaw 9/10 3204 days true 2.53 2%
Simon Slawner 9/10 3221 days true 2.51 2%
Thorben Thede 7/10 3231 days true 2.49 2%
anne p 7/10 3242 days true 2.47 2%
eric14 8/10 3280 days 2.01 1%
Sam819 10/10 3280 days 2.01 1%
SandraThomas 10/10 3280 days 2.01 1%
MarielR 8/10 3481 days true 2.08 2%
Donna 10/10 3489 days true 2.06 2%
Sam Marshall 7/10 3491 days 1.72 1%
Peter 9/10 3512 days true 2.03 1%
Hans 8/10 3512 days true 2.03 1%
ali_m 10/10 3532 days 1.66 1%
Emily 10/10 3571 days 1.61 1%
Tom 10/10 3580 days 1.6 1%
Aoife 9/10 3638 days true 1.82 1%
Shannon 5/10 3712 days true 1.7 1%
Martin 9/10 3731 days true 1.67 1%
Eric Campbell 10/10 3750 days 1.36 1%
Corin Kraft 10/10 3805 days true 1.55 1%
hobl 10/10 3813 days 1.28 1%
cyntha rams 10/10 3838 days 1.24 0%
Katy Bray 9/10 3843 days true 1.48 1%
Vicki 9/10 3861 days true 1.45 1%
Walter 9/10 3877 days true 1.43 1%
Sabine 10/10 3877 days true 1.43 1%
Dupre 8/10 3932 days true 1.34 1%
Kate and Dave 10/10 4065 days true 1.12 0%
Susan 9/10 4213 days true 0.87 0%
Peter 8/10 4233 days true 0.84 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

-6.12% 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 306 days. Adjustments are according to the following table.

Days Adjustment
303 -6.06%
304 -6.08%
305 -6.10%
306 -6.12%
307 -6.14%
308 -6.16%
309 -6.18%

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.