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

86.15%

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 8/10 967 days true 7.22 100%
Jessica Freeland 9/10 1012 days true 6.09 84%
Jolien 8/10 1015 days true 5.71 79%
Cathrin Wisgiekl 8/10 2036 days true 3.22 45%
Marc Engstle 5/10 2054 days true 2.72 38%
Matthias Freiling 7/10 2058 days true 3.05 42%
Johannes 7/10 2059 days true 3.05 42%
Josefina Tassone 10/10 2081 days true 3.31 46%
Hendrik Schanz 9/10 2084 days true 3.31 46%
Philip Gosemann 9/10 2084 days true 3.31 46%
Jake Bell 10/10 2091 days 3.29 46%
Neele & Philipp 9/10 2407 days true 2.75 38%
Laurits and Bettina 8/10 2494 days true 2.47 34%
Curry 10/10 2865 days true 1.97 27%
Craig Hathaway 10/10 3096 days true 1.57 22%
Sarah James 10/10 3096 days true 1.57 22%
Nicola Young 6/10 3096 days true 1.31 18%
Isabell 10/10 3116 days true 1.54 21%
Justin Pearce 4/10 3132 days true 1.19 17%
tandysandhu 10/10 3187 days 1.42 20%
alexiap 8/10 3218 days 1.3 18%
TerriH 10/10 3340 days 1.16 16%
Marea 9/10 3371 days 1.1 15%
Pete & Judy McChesney 10/10 3425 days true 1.01 14%
claireamanda 9/10 3432 days 1.0 14%
laurabridges 10/10 3432 days 1.0 14%
Ben Thomas 10/10 3462 days 0.95 13%
sam jones 10/10 3493 days 0.89 12%
Rachel Honore 10/10 3493 days 0.89 12%
Pip 10/10 3493 days 0.89 12%
Kay Beaumont 8/10 3495 days true 0.85 12%
Alzbeta Czech 10/10 3507 days true 0.87 12%
sazz 10/10 3521 days 0.85 12%
Amelie Sutcliffe 10/10 3521 days 0.85 12%
iep_crew 10/10 3521 days 0.85 12%
Kane Chain 8/10 3538 days true 0.78 11%
stroalki 7/10 3552 days 0.72 10%
Angela Stringer 9/10 3552 days 0.79 11%
hendrik gottschalk 10/10 3552 days 0.79 11%
katesc 9/10 3572 days true 0.76 11%
rosalindm 10/10 3577 days true 0.75 10%
Lesley Nixon 6/10 3593 days true 0.6 8%
bondd 10/10 3692 days true 0.55 8%
Keith 9/10 3851 days true 0.28 4%
kiwibrit86 9/10 3871 days 0.25 3%
NinaH1 8/10 3877 days true 0.22 3%
renanf 9/10 3878 days 0.23 3%
DaraghD 9/10 3884 days true 0.22 3%
Michael 8/10 3889 days true 0.2 3%
Lucas 4/10 3889 days true 0.17 2%
Jasmine 10/10 3893 days true 0.21 3%
Liekens 8/10 3948 days true 0.11 2%
jfletch 10/10 3958 days true 0.1 1%
Lisa 10/10 3959 days true 0.1 1%
siobhan 10/10 3961 days true 0.09 1%
mike brett 8/10 3961 days 0.09 1%
Evelyn 7/10 3962 days true 0.08 1%
Ben 10/10 3968 days true 0.08 1%
Chris 10/10 4002 days true 0.02 0%
maria d 10/10 4070 days 0.0 0%
JP Alberto 10/10 4072 days 0.0 0%
Daniala 9/10 4095 days true 0.0 0%
Rhys Howell 9/10 4161 days 0.0 0%
Toni Keown 10/10 4186 days 0.0 0%
Nicnac 9/10 4193 days 0.0 0%
Mark 9/10 4197 days true 0.0 0%
Claire 10/10 4213 days true 0.0 0%
Stephanie 10/10 4239 days true 0.0 0%
Marc Hertogs 9/10 4243 days true 0.0 0%
Chris 8/10 4252 days true 0.0 0%
Stacey 10/10 4252 days true 0.0 0%
Andre Obineche 10/10 4267 days true 0.0 0%
Hayley 7/10 4267 days true 0.0 0%
Lindsey Woosnam 9/10 4270 days true 0.0 0%
Fred 6/10 4274 days true 0.0 0%
Anneli 10/10 4275 days true 0.0 0%
Tom Anson 8/10 4275 days true 0.0 0%
Rich 9/10 4308 days true 0.0 0%
Neil Cooke 8/10 4309 days true 0.0 0%
Manuel 9/10 4316 days true 0.0 0%
Tom Clements 8/10 4317 days true 0.0 0%
Richard Kindgren 8/10 4319 days true 0.0 0%
Linda 10/10 4543 days true 0.0 0%
ShoshanaAbrams 9/10 4548 days true 0.0 0%
LauraMarini 9/10 4552 days true 0.0 0%
Cohen 8/10 4553 days true 0.0 0%
Valerie 8/10 4554 days true 0.0 0%
Matt 7/10 4555 days true 0.0 0%
Kate 10/10 4557 days true 0.0 0%
AnnaHerbert 10/10 4563 days true 0.0 0%
Austin 9/10 4571 days true 0.0 0%
Claire 9/10 4571 days true 0.0 0%
AnnaOwen 10/10 4582 days true 0.0 0%
AndrewEwen 6/10 4582 days true 0.0 0%
Nina 7/10 4599 days true 0.0 0%
Helen 10/10 4599 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

82%

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.