Hey, 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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Cymen Crick

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

88.71%

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
Alex Victor 8/10 2943 days 100%
Jessica Freeland 9/10 2988 days 97%
Jolien 8/10 2991 days 96%
Cathrin Wisgiekl 8/10 4012 days 8%
Marc Engstle 5/10 4030 days 0%
Matthias Freiling 7/10 4034 days 5%
Johannes 7/10 4035 days 5%
Josefina Tassone 10/10 4057 days 5%
Hendrik Schanz 9/10 4060 days 4%
Philip Gosemann 9/10 4060 days 4%
Jake Bell 10/10 4067 days 4%
Neele & Philipp 9/10 4383 days 21%
Laurits and Bettina 8/10 4470 days 20%
Curry 10/10 4841 days 21%
Craig Hathaway 10/10 5072 days 21%
Sarah James 10/10 5072 days 21%
Nicola Young 6/10 5072 days 15%
Isabell 10/10 5092 days 21%
Justin Pearce 4/10 5108 days 6%
tandysandhu 10/10 5163 days 21%
alexiap 8/10 5194 days 20%
TerriH 10/10 5316 days 21%
Marea 9/10 5347 days 21%
Pete & Judy McChesney 10/10 5401 days 21%
claireamanda 9/10 5408 days 21%
laurabridges 10/10 5408 days 21%
Ben Thomas 10/10 5438 days 21%
sam jones 10/10 5469 days 21%
Rachel Honore 10/10 5469 days 21%
Pip 10/10 5469 days 21%
Kay Beaumont 8/10 5471 days 20%
Alzbeta Czech 10/10 5483 days 21%
sazz 10/10 5497 days 21%
Amelie Sutcliffe 10/10 5497 days 21%
iep_crew 10/10 5497 days 21%
Kane Chain 8/10 5514 days 20%
stroalki 7/10 5528 days 18%
Angela Stringer 9/10 5528 days 21%
hendrik gottschalk 10/10 5528 days 21%
katesc 9/10 5548 days 21%
rosalindm 10/10 5553 days 21%
Lesley Nixon 6/10 5569 days 15%
bondd 10/10 5668 days 21%
Keith 9/10 5827 days 21%
kiwibrit86 9/10 5847 days 21%
NinaH1 8/10 5853 days 20%
renanf 9/10 5854 days 21%
DaraghD 9/10 5860 days 21%
Michael 8/10 5865 days 20%
Lucas 4/10 5865 days 6%
Jasmine 10/10 5869 days 21%
Liekens 8/10 5924 days 20%
jfletch 10/10 5934 days 21%
Lisa 10/10 5935 days 21%
siobhan 10/10 5937 days 21%
mike brett 8/10 5937 days 20%
Evelyn 7/10 5938 days 18%
Ben 10/10 5944 days 21%
Chris 10/10 5979 days 21%
maria d 10/10 6046 days 21%
JP Alberto 10/10 6048 days 21%
Daniala 9/10 6071 days 21%
Rhys Howell 9/10 6137 days 21%
Toni Keown 10/10 6162 days 21%
Nicnac 9/10 6169 days 21%
Mark 9/10 6173 days 21%
Claire 10/10 6189 days 21%
Stephanie 10/10 6215 days 21%
Marc Hertogs 9/10 6219 days 21%
Chris 8/10 6228 days 20%
Stacey 10/10 6228 days 21%
Andre Obineche 10/10 6243 days 21%
Hayley 7/10 6243 days 18%
Lindsey Woosnam 9/10 6246 days 21%
Fred 6/10 6250 days 15%
Anneli 10/10 6251 days 21%
Tom Anson 8/10 6251 days 20%
Rich 9/10 6284 days 21%
Neil Cooke 8/10 6285 days 20%
Manuel 9/10 6292 days 21%
Tom Clements 8/10 6293 days 20%
Richard Kindgren 8/10 6295 days 20%
Linda 10/10 6519 days 21%
ShoshanaAbrams 9/10 6524 days 21%
LauraMarini 9/10 6528 days 21%
Cohen 8/10 6529 days 20%
Valerie 8/10 6530 days 20%
Matt 7/10 6531 days 18%
Kate 10/10 6533 days 21%
AnnaHerbert 10/10 6539 days 21%
Austin 9/10 6547 days 21%
Claire 9/10 6547 days 21%
AnnaOwen 10/10 6558 days 21%
AndrewEwen 6/10 6558 days 15%
Nina 7/10 6575 days 18%
Helen 10/10 6575 days 21%

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

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 53 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Kaitiaki Adventures Rafting and Sledging 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

1.91% 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

86%

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.