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 Kaitiaki Adventures Rafting and Sledging.

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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Nick Morrison

Rankers owner

Kaitiaki Adventures Rafting and Sledging

Valid Reviews

96 Valid Reviews

The Kaitiaki Adventures Rafting and Sledging experience has a total of 100 reviews. There are 96 valid reviews that are included when calculating the ranking score and 4 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 96 valid reviews:

Rating Count Percentage
10/10 40
42%
9/10 24
25%
8/10 18
19%
7/10 7
7%
6/10 4
4%
5/10 1
1%
4/10 2
2%
3/10 0
0%
2/10 0
0%
1/10 0
0%

88.13% Average

The raw data average (mean) for all the Kaitiaki Adventures Rafting and Sledging valid reviews is 88.13% and is based on 96 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

71 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 96 valid reviews, the experience has 71 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 71 face-to-face reviews:

Rating Count Percentage
10/10 25
35%
9/10 17
24%
8/10 16
23%
7/10 6
8%
6/10 4
6%
5/10 1
1%
4/10 2
3%
3/10 0
0%
2/10 0
0%
1/10 0
0%

85.92% Average

The raw data average (mean) for all the Kaitiaki Adventures Rafting and Sledging face-to-face reviews is 85.92% and is based on 71 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

85.79%

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
Alex Victor 8/10 653 days true 43.15 100%
Jessica Freeland 9/10 698 days true 35.97 83%
Jolien 8/10 701 days true 35.52 82%
Cathrin Wisgiekl 8/10 1722 days true 4.97 10%
Marc Engstle 5/10 1740 days true 4.94 10%
Matthias Freiling 7/10 1744 days true 4.93 10%
Johannes 7/10 1745 days true 4.93 10%
Josefina Tassone 10/10 1767 days true 4.9 10%
Hendrik Schanz 9/10 1770 days true 4.89 10%
Philip Gosemann 9/10 1770 days true 4.89 10%
Jake Bell 10/10 1777 days 4.07 8%
Neele & Philipp 9/10 2093 days true 4.36 8%
Laurits and Bettina 8/10 2180 days true 4.22 8%
Curry 10/10 2551 days true 3.61 7%
Craig Hathaway 10/10 2782 days true 3.23 6%
Sarah James 10/10 2782 days true 3.23 6%
Nicola Young 6/10 2782 days true 3.23 6%
Isabell 10/10 2802 days true 3.19 6%
Justin Pearce 4/10 2818 days true 2.98 5%
tandysandhu 10/10 2873 days 2.56 4%
alexiap 8/10 2904 days 2.52 4%
TerriH 10/10 3026 days 2.35 4%
Marea 9/10 3057 days 2.31 4%
Pete & Judy McChesney 10/10 3111 days true 2.69 5%
claireamanda 9/10 3118 days 2.23 3%
laurabridges 10/10 3118 days 2.23 3%
Ben Thomas 10/10 3148 days 2.19 3%
sam jones 10/10 3179 days 2.15 3%
Rachel Honore 10/10 3179 days 2.15 3%
Pip 10/10 3179 days 2.15 3%
Kay Beaumont 8/10 3181 days true 2.57 4%
Alzbeta Czech 10/10 3193 days true 2.55 4%
sazz 10/10 3207 days 2.11 3%
Amelie Sutcliffe 10/10 3207 days 2.11 3%
iep_crew 10/10 3207 days 2.11 3%
Kane Chain 8/10 3224 days true 2.5 4%
stroalki 7/10 3238 days 2.06 3%
Angela Stringer 9/10 3238 days 2.06 3%
hendrik gottschalk 10/10 3238 days 2.06 3%
katesc 9/10 3258 days true 2.44 4%
rosalindm 10/10 3263 days true 2.44 4%
Lesley Nixon 6/10 3279 days true 2.41 4%
bondd 10/10 3378 days true 2.25 4%
Keith 9/10 3537 days true 1.99 3%
kiwibrit86 9/10 3556 days 1.63 2%
NinaH1 8/10 3563 days true 1.94 3%
renanf 9/10 3564 days 1.62 2%
DaraghD 9/10 3570 days true 1.93 3%
Michael 8/10 3575 days true 1.92 3%
Lucas 4/10 3575 days true 1.81 2%
Jasmine 10/10 3579 days true 1.92 3%
Liekens 8/10 3633 days true 1.83 3%
jfletch 10/10 3643 days true 1.81 2%
Lisa 10/10 3644 days true 1.81 2%
siobhan 10/10 3646 days true 1.81 2%
mike brett 8/10 3647 days 1.5 2%
Evelyn 7/10 3647 days true 1.8 2%
Ben 10/10 3654 days true 1.79 2%
Chris 10/10 3688 days true 1.74 2%
maria d 10/10 3755 days 1.36 1%
JP Alberto 10/10 3757 days 1.35 1%
Daniala 9/10 3780 days true 1.59 2%
Rhys Howell 9/10 3847 days 1.23 1%
Toni Keown 10/10 3872 days 1.2 1%
Nicnac 9/10 3878 days 1.19 1%
Mark 9/10 3883 days true 1.42 2%
Claire 10/10 3899 days true 1.39 1%
Stephanie 10/10 3925 days true 1.35 1%
Marc Hertogs 9/10 3929 days true 1.34 1%
Chris 8/10 3938 days true 1.33 1%
Stacey 10/10 3938 days true 1.33 1%
Andre Obineche 10/10 3953 days true 1.3 1%
Hayley 7/10 3953 days true 1.3 1%
Lindsey Woosnam 9/10 3956 days true 1.3 1%
Fred 6/10 3960 days true 1.29 1%
Anneli 10/10 3961 days true 1.29 1%
Tom Anson 8/10 3961 days true 1.29 1%
Rich 9/10 3994 days true 1.23 1%
Neil Cooke 8/10 3995 days true 1.23 1%
Manuel 9/10 4002 days true 1.22 1%
Tom Clements 8/10 4003 days true 1.22 1%
Richard Kindgren 8/10 4005 days true 1.22 1%
Linda 10/10 4229 days true 0.85 0%
ShoshanaAbrams 9/10 4234 days true 0.84 0%
LauraMarini 9/10 4238 days true 0.83 0%
Cohen 8/10 4239 days true 0.83 0%
Valerie 8/10 4240 days true 0.83 0%
Matt 7/10 4241 days true 0.83 0%
Kate 10/10 4243 days true 0.83 0%
AnnaHerbert 10/10 4249 days true 0.82 0%
Austin 9/10 4257 days true 0.8 0%
Claire 9/10 4257 days true 0.8 0%
AnnaOwen 10/10 4268 days true 0.78 0%
AndrewEwen 6/10 4268 days true 0.78 0%
Nina 7/10 4285 days true 0.76 0%
Helen 10/10 4285 days true 0.76 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 Kaitiaki Adventures Rafting and Sledging 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 Kaitiaki Adventures Rafting and Sledging 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 Kaitiaki Adventures Rafting and Sledging 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

79%

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.