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

85.25%

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 8/10 389 days 100%
Jessica Freeland 9/10 434 days 92%
Jolien 8/10 437 days 92%
Cathrin Wisgiekl 8/10 1458 days 5%
Marc Engstle 5/10 1476 days 5%
Matthias Freiling 7/10 1480 days 5%
Johannes 7/10 1481 days 5%
Josefina Tassone 10/10 1503 days 5%
Hendrik Schanz 9/10 1506 days 5%
Philip Gosemann 9/10 1506 days 5%
Jake Bell 10/10 1513 days 4%
Neele & Philipp 9/10 1829 days 4%
Laurits and Bettina 8/10 1916 days 4%
Curry 10/10 2287 days 3%
Craig Hathaway 10/10 2518 days 3%
Sarah James 10/10 2518 days 3%
Nicola Young 6/10 2518 days 3%
Isabell 10/10 2538 days 3%
Justin Pearce 4/10 2554 days 2%
tandysandhu 10/10 2609 days 2%
alexiap 8/10 2640 days 2%
TerriH 10/10 2761 days 2%
Marea 9/10 2792 days 2%
Pete & Judy McChesney 10/10 2846 days 2%
claireamanda 9/10 2853 days 2%
laurabridges 10/10 2853 days 2%
Ben Thomas 10/10 2884 days 2%
sam jones 10/10 2915 days 1%
Rachel Honore 10/10 2915 days 1%
Pip 10/10 2915 days 1%
Kay Beaumont 8/10 2917 days 2%
Alzbeta Czech 10/10 2929 days 2%
sazz 10/10 2943 days 1%
Amelie Sutcliffe 10/10 2943 days 1%
iep_crew 10/10 2943 days 1%
Kane Chain 8/10 2960 days 2%
stroalki 7/10 2974 days 1%
Angela Stringer 9/10 2974 days 1%
hendrik gottschalk 10/10 2974 days 1%
katesc 9/10 2994 days 2%
rosalindm 10/10 2999 days 2%
Lesley Nixon 6/10 3015 days 2%
bondd 10/10 3113 days 2%
Keith 9/10 3273 days 1%
kiwibrit86 9/10 3292 days 1%
NinaH1 8/10 3299 days 1%
renanf 9/10 3299 days 1%
DaraghD 9/10 3306 days 1%
Michael 8/10 3311 days 1%
Lucas 4/10 3311 days 1%
Jasmine 10/10 3315 days 1%
Liekens 8/10 3369 days 1%
jfletch 10/10 3379 days 1%
Lisa 10/10 3380 days 1%
siobhan 10/10 3382 days 1%
mike brett 8/10 3382 days 1%
Evelyn 7/10 3383 days 1%
Ben 10/10 3389 days 1%
Chris 10/10 3424 days 1%
maria d 10/10 3491 days 1%
JP Alberto 10/10 3493 days 1%
Daniala 9/10 3516 days 1%
Rhys Howell 9/10 3582 days 0%
Toni Keown 10/10 3607 days 0%
Nicnac 9/10 3614 days 0%
Mark 9/10 3619 days 1%
Claire 10/10 3635 days 1%
Stephanie 10/10 3661 days 1%
Marc Hertogs 9/10 3665 days 1%
Chris 8/10 3674 days 1%
Stacey 10/10 3674 days 1%
Andre Obineche 10/10 3689 days 1%
Hayley 7/10 3689 days 1%
Lindsey Woosnam 9/10 3692 days 1%
Fred 6/10 3696 days 1%
Anneli 10/10 3697 days 1%
Tom Anson 8/10 3697 days 1%
Rich 9/10 3730 days 1%
Neil Cooke 8/10 3731 days 1%
Manuel 9/10 3738 days 1%
Tom Clements 8/10 3739 days 1%
Richard Kindgren 8/10 3741 days 1%
Linda 10/10 3964 days 0%
ShoshanaAbrams 9/10 3969 days 0%
LauraMarini 9/10 3973 days 0%
Cohen 8/10 3974 days 0%
Valerie 8/10 3975 days 0%
Matt 7/10 3976 days 0%
Kate 10/10 3978 days 0%
AnnaHerbert 10/10 3984 days 0%
Austin 9/10 3992 days 0%
Claire 9/10 3992 days 0%
AnnaOwen 10/10 4004 days 0%
AndrewEwen 6/10 4004 days 0%
Nina 7/10 4021 days 0%
Helen 10/10 4021 days 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

-4.56% 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 228 days. Adjustments are according to the following table.

Days Adjustment
225 -4.50%
226 -4.52%
227 -4.54%
228 -4.56%
229 -4.58%
230 -4.60%
231 -4.62%

Final Ranking Score

81%

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.