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

84.38%

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 1047 days true 5.1 100%
Jessica Freeland 9/10 1092 days true 5.0 98%
Jolien 8/10 1095 days true 4.75 93%
Cathrin Wisgiekl 8/10 2116 days true 2.85 56%
Marc Engstle 5/10 2134 days true 2.4 47%
Matthias Freiling 7/10 2138 days true 2.69 53%
Johannes 7/10 2139 days true 2.69 53%
Josefina Tassone 10/10 2161 days true 2.91 57%
Hendrik Schanz 9/10 2164 days true 2.91 57%
Philip Gosemann 9/10 2164 days true 2.91 57%
Jake Bell 10/10 2171 days 2.89 57%
Neele & Philipp 9/10 2487 days true 2.28 45%
Laurits and Bettina 8/10 2574 days true 2.0 39%
Curry 10/10 2945 days true 1.38 27%
Craig Hathaway 10/10 3176 days true 0.93 18%
Sarah James 10/10 3176 days true 0.93 18%
Nicola Young 6/10 3176 days true 0.77 15%
Isabell 10/10 3196 days true 0.89 17%
Justin Pearce 4/10 3212 days true 0.68 13%
tandysandhu 10/10 3267 days 0.75 15%
alexiap 8/10 3298 days 0.65 13%
TerriH 10/10 3420 days 0.45 9%
Marea 9/10 3451 days 0.39 8%
Pete & Judy McChesney 10/10 3505 days true 0.28 6%
claireamanda 9/10 3512 days 0.27 5%
laurabridges 10/10 3512 days 0.27 5%
Ben Thomas 10/10 3542 days 0.21 4%
sam jones 10/10 3573 days 0.15 3%
Rachel Honore 10/10 3573 days 0.15 3%
Pip 10/10 3573 days 0.15 3%
Kay Beaumont 8/10 3575 days true 0.14 3%
Alzbeta Czech 10/10 3587 days true 0.12 2%
sazz 10/10 3601 days 0.1 2%
Amelie Sutcliffe 10/10 3601 days 0.1 2%
iep_crew 10/10 3601 days 0.1 2%
Kane Chain 8/10 3618 days true 0.06 1%
stroalki 7/10 3632 days 0.03 1%
Angela Stringer 9/10 3632 days 0.04 1%
hendrik gottschalk 10/10 3632 days 0.04 1%
katesc 9/10 3652 days true 0.0 0%
rosalindm 10/10 3657 days true 0.0 0%
Lesley Nixon 6/10 3673 days true 0.0 0%
bondd 10/10 3772 days true 0.0 0%
Keith 9/10 3931 days true 0.0 0%
kiwibrit86 9/10 3950 days 0.0 0%
NinaH1 8/10 3957 days true 0.0 0%
renanf 9/10 3957 days 0.0 0%
DaraghD 9/10 3964 days true 0.0 0%
Michael 8/10 3969 days true 0.0 0%
Lucas 4/10 3969 days true 0.0 0%
Jasmine 10/10 3973 days true 0.0 0%
Liekens 8/10 4027 days true 0.0 0%
jfletch 10/10 4037 days true 0.0 0%
Lisa 10/10 4038 days true 0.0 0%
siobhan 10/10 4040 days true 0.0 0%
mike brett 8/10 4040 days 0.0 0%
Evelyn 7/10 4041 days true 0.0 0%
Ben 10/10 4047 days true 0.0 0%
Chris 10/10 4082 days true 0.0 0%
maria d 10/10 4149 days 0.0 0%
JP Alberto 10/10 4151 days 0.0 0%
Daniala 9/10 4174 days true 0.0 0%
Rhys Howell 9/10 4240 days 0.0 0%
Toni Keown 10/10 4265 days 0.0 0%
Nicnac 9/10 4272 days 0.0 0%
Mark 9/10 4277 days true 0.0 0%
Claire 10/10 4293 days true 0.0 0%
Stephanie 10/10 4319 days true 0.0 0%
Marc Hertogs 9/10 4323 days true 0.0 0%
Chris 8/10 4332 days true 0.0 0%
Stacey 10/10 4332 days true 0.0 0%
Andre Obineche 10/10 4347 days true 0.0 0%
Hayley 7/10 4347 days true 0.0 0%
Lindsey Woosnam 9/10 4350 days true 0.0 0%
Fred 6/10 4354 days true 0.0 0%
Anneli 10/10 4355 days true 0.0 0%
Tom Anson 8/10 4355 days true 0.0 0%
Rich 9/10 4388 days true 0.0 0%
Neil Cooke 8/10 4389 days true 0.0 0%
Manuel 9/10 4396 days true 0.0 0%
Tom Clements 8/10 4397 days true 0.0 0%
Richard Kindgren 8/10 4399 days true 0.0 0%
Linda 10/10 4623 days true 0.0 0%
ShoshanaAbrams 9/10 4628 days true 0.0 0%
LauraMarini 9/10 4632 days true 0.0 0%
Cohen 8/10 4633 days true 0.0 0%
Valerie 8/10 4634 days true 0.0 0%
Matt 7/10 4635 days true 0.0 0%
Kate 10/10 4637 days true 0.0 0%
AnnaHerbert 10/10 4643 days true 0.0 0%
Austin 9/10 4651 days true 0.0 0%
Claire 9/10 4651 days true 0.0 0%
AnnaOwen 10/10 4662 days true 0.0 0%
AndrewEwen 6/10 4662 days true 0.0 0%
Nina 7/10 4679 days true 0.0 0%
Helen 10/10 4679 days true 0.0 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

-3.98% 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 199 days.

The Kaitiaki Adventures Rafting and Sledging experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

80%

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.