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.

Nick Morrison's avatar

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

86.09%

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 8/10 754 days true 28.11 100%
Jessica Freeland 9/10 799 days true 22.66 80%
Jolien 8/10 802 days true 22.32 79%
Cathrin Wisgiekl 8/10 1823 days true 4.8 15%
Marc Engstle 5/10 1841 days true 4.77 15%
Matthias Freiling 7/10 1845 days true 4.77 15%
Johannes 7/10 1846 days true 4.77 15%
Josefina Tassone 10/10 1868 days true 4.73 15%
Hendrik Schanz 9/10 1871 days true 4.72 15%
Philip Gosemann 9/10 1871 days true 4.72 15%
Jake Bell 10/10 1878 days 3.93 12%
Neele & Philipp 9/10 2194 days true 4.19 13%
Laurits and Bettina 8/10 2281 days true 4.05 13%
Curry 10/10 2652 days true 3.44 10%
Craig Hathaway 10/10 2883 days true 3.06 9%
Sarah James 10/10 2883 days true 3.06 9%
Nicola Young 6/10 2883 days true 3.06 9%
Isabell 10/10 2903 days true 3.03 9%
Justin Pearce 4/10 2919 days true 2.83 8%
tandysandhu 10/10 2974 days 2.43 7%
alexiap 8/10 3005 days 2.38 7%
TerriH 10/10 3127 days 2.22 6%
Marea 9/10 3158 days 2.17 6%
Pete & Judy McChesney 10/10 3212 days true 2.52 7%
claireamanda 9/10 3219 days 2.09 5%
laurabridges 10/10 3219 days 2.09 5%
Ben Thomas 10/10 3249 days 2.05 5%
sam jones 10/10 3280 days 2.01 5%
Rachel Honore 10/10 3280 days 2.01 5%
Pip 10/10 3280 days 2.01 5%
Kay Beaumont 8/10 3282 days true 2.4 7%
Alzbeta Czech 10/10 3294 days true 2.39 7%
sazz 10/10 3308 days 1.97 5%
Amelie Sutcliffe 10/10 3308 days 1.97 5%
iep_crew 10/10 3308 days 1.97 5%
Kane Chain 8/10 3325 days true 2.33 6%
stroalki 7/10 3339 days 1.93 5%
Angela Stringer 9/10 3339 days 1.93 5%
hendrik gottschalk 10/10 3339 days 1.93 5%
katesc 9/10 3359 days true 2.28 6%
rosalindm 10/10 3364 days true 2.27 6%
Lesley Nixon 6/10 3380 days true 2.24 6%
bondd 10/10 3479 days true 2.08 5%
Keith 9/10 3638 days true 1.82 4%
kiwibrit86 9/10 3657 days 1.49 3%
NinaH1 8/10 3664 days true 1.78 4%
renanf 9/10 3665 days 1.48 3%
DaraghD 9/10 3671 days true 1.77 4%
Michael 8/10 3676 days true 1.76 4%
Lucas 4/10 3676 days true 1.65 4%
Jasmine 10/10 3680 days true 1.75 4%
Liekens 8/10 3734 days true 1.66 4%
jfletch 10/10 3744 days true 1.65 4%
Lisa 10/10 3745 days true 1.64 4%
siobhan 10/10 3747 days true 1.64 4%
mike brett 8/10 3748 days 1.37 3%
Evelyn 7/10 3748 days true 1.64 4%
Ben 10/10 3754 days true 1.63 4%
Chris 10/10 3789 days true 1.57 4%
maria d 10/10 3856 days 1.22 2%
JP Alberto 10/10 3858 days 1.22 2%
Daniala 9/10 3881 days true 1.42 3%
Rhys Howell 9/10 3947 days 1.09 2%
Toni Keown 10/10 3972 days 1.06 2%
Nicnac 9/10 3979 days 1.05 2%
Mark 9/10 3984 days true 1.25 2%
Claire 10/10 4000 days true 1.22 2%
Stephanie 10/10 4026 days true 1.18 2%
Marc Hertogs 9/10 4030 days true 1.18 2%
Chris 8/10 4039 days true 1.16 2%
Stacey 10/10 4039 days true 1.16 2%
Andre Obineche 10/10 4054 days true 1.14 2%
Hayley 7/10 4054 days true 1.14 2%
Lindsey Woosnam 9/10 4057 days true 1.13 2%
Fred 6/10 4061 days true 1.12 2%
Anneli 10/10 4062 days true 1.12 2%
Tom Anson 8/10 4062 days true 1.12 2%
Rich 9/10 4095 days true 1.07 2%
Neil Cooke 8/10 4096 days true 1.07 2%
Manuel 9/10 4103 days true 1.06 2%
Tom Clements 8/10 4104 days true 1.05 2%
Richard Kindgren 8/10 4106 days true 1.05 2%
Linda 10/10 4330 days true 0.68 0%
ShoshanaAbrams 9/10 4335 days true 0.67 0%
LauraMarini 9/10 4339 days true 0.67 0%
Cohen 8/10 4340 days true 0.67 0%
Valerie 8/10 4341 days true 0.66 0%
Matt 7/10 4342 days true 0.66 0%
Kate 10/10 4344 days true 0.66 0%
AnnaHerbert 10/10 4350 days true 0.65 0%
Austin 9/10 4358 days true 0.64 0%
Claire 9/10 4358 days true 0.64 0%
AnnaOwen 10/10 4369 days true 0.62 0%
AndrewEwen 6/10 4369 days true 0.62 0%
Nina 7/10 4386 days true 0.59 0%
Helen 10/10 4386 days true 0.59 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.