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

85.56%

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 8/10 568 days true 58.81 100%
Jessica Freeland 9/10 613 days true 50.18 85%
Jolien 8/10 616 days true 49.63 84%
Cathrin Wisgiekl 8/10 1637 days true 5.11 7%
Marc Engstle 5/10 1655 days true 5.08 7%
Matthias Freiling 7/10 1659 days true 5.07 7%
Johannes 7/10 1660 days true 5.07 7%
Josefina Tassone 10/10 1682 days true 5.04 7%
Hendrik Schanz 9/10 1685 days true 5.03 7%
Philip Gosemann 9/10 1685 days true 5.03 7%
Jake Bell 10/10 1692 days 4.18 6%
Neele & Philipp 9/10 2008 days true 4.5 6%
Laurits and Bettina 8/10 2095 days true 4.36 6%
Curry 10/10 2466 days true 3.75 5%
Craig Hathaway 10/10 2697 days true 3.37 4%
Sarah James 10/10 2697 days true 3.37 4%
Nicola Young 6/10 2697 days true 3.37 4%
Isabell 10/10 2717 days true 3.33 4%
Justin Pearce 4/10 2733 days true 3.11 4%
tandysandhu 10/10 2788 days 2.68 3%
alexiap 8/10 2819 days 2.64 3%
TerriH 10/10 2941 days 2.47 3%
Marea 9/10 2972 days 2.43 3%
Pete & Judy McChesney 10/10 3026 days true 2.83 3%
claireamanda 9/10 3033 days 2.35 3%
laurabridges 10/10 3033 days 2.35 3%
Ben Thomas 10/10 3063 days 2.3 2%
sam jones 10/10 3094 days 2.26 2%
Rachel Honore 10/10 3094 days 2.26 2%
Pip 10/10 3094 days 2.26 2%
Kay Beaumont 8/10 3096 days true 2.71 3%
Alzbeta Czech 10/10 3108 days true 2.69 3%
sazz 10/10 3122 days 2.22 2%
Amelie Sutcliffe 10/10 3122 days 2.22 2%
iep_crew 10/10 3122 days 2.22 2%
Kane Chain 8/10 3139 days true 2.64 3%
stroalki 7/10 3153 days 2.18 2%
Angela Stringer 9/10 3153 days 2.18 2%
hendrik gottschalk 10/10 3153 days 2.18 2%
katesc 9/10 3173 days true 2.58 3%
rosalindm 10/10 3178 days true 2.58 3%
Lesley Nixon 6/10 3194 days true 2.55 3%
bondd 10/10 3293 days true 2.39 3%
Keith 9/10 3452 days true 2.13 2%
kiwibrit86 9/10 3471 days 1.75 1%
NinaH1 8/10 3478 days true 2.08 2%
renanf 9/10 3479 days 1.73 1%
DaraghD 9/10 3485 days true 2.07 2%
Michael 8/10 3490 days true 2.06 2%
Lucas 4/10 3490 days true 1.94 2%
Jasmine 10/10 3494 days true 2.06 2%
Liekens 8/10 3548 days true 1.97 2%
jfletch 10/10 3558 days true 1.95 2%
Lisa 10/10 3559 days true 1.95 2%
siobhan 10/10 3561 days true 1.95 2%
mike brett 8/10 3562 days 1.62 1%
Evelyn 7/10 3562 days true 1.94 2%
Ben 10/10 3568 days true 1.93 2%
Chris 10/10 3603 days true 1.88 2%
maria d 10/10 3670 days 1.47 1%
JP Alberto 10/10 3672 days 1.47 1%
Daniala 9/10 3695 days true 1.73 1%
Rhys Howell 9/10 3762 days 1.35 1%
Toni Keown 10/10 3786 days 1.31 1%
Nicnac 9/10 3793 days 1.3 1%
Mark 9/10 3798 days true 1.56 1%
Claire 10/10 3814 days true 1.53 1%
Stephanie 10/10 3840 days true 1.49 1%
Marc Hertogs 9/10 3844 days true 1.48 1%
Chris 8/10 3853 days true 1.47 1%
Stacey 10/10 3853 days true 1.47 1%
Andre Obineche 10/10 3868 days true 1.44 1%
Hayley 7/10 3868 days true 1.44 1%
Lindsey Woosnam 9/10 3871 days true 1.44 1%
Fred 6/10 3875 days true 1.43 1%
Anneli 10/10 3876 days true 1.43 1%
Tom Anson 8/10 3876 days true 1.43 1%
Rich 9/10 3909 days true 1.37 1%
Neil Cooke 8/10 3910 days true 1.37 1%
Manuel 9/10 3917 days true 1.36 1%
Tom Clements 8/10 3918 days true 1.36 1%
Richard Kindgren 8/10 3920 days true 1.36 1%
Linda 10/10 4144 days true 0.99 0%
ShoshanaAbrams 9/10 4149 days true 0.98 0%
LauraMarini 9/10 4153 days true 0.97 0%
Cohen 8/10 4154 days true 0.97 0%
Valerie 8/10 4155 days true 0.97 0%
Matt 7/10 4156 days true 0.97 0%
Kate 10/10 4158 days true 0.96 0%
AnnaHerbert 10/10 4164 days true 0.96 0%
Austin 9/10 4172 days true 0.94 0%
Claire 9/10 4172 days true 0.94 0%
AnnaOwen 10/10 4183 days true 0.92 0%
AndrewEwen 6/10 4183 days true 0.92 0%
Nina 7/10 4200 days true 0.9 0%
Helen 10/10 4200 days true 0.9 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

78%

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.