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 Rangitata Rafts Ltd.

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

Rangitata Rafts Ltd

Valid Reviews

78 Valid Reviews

The Rangitata Rafts Ltd experience has a total of 78 valid reviews. There are no 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 78 valid reviews:

Rating Count Percentage
10/10 55
71%
9/10 14
18%
8/10 7
9%
7/10 1
1%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 1
1%

94.87% Average

The raw data average (mean) for all the Rangitata Rafts Ltd valid reviews is 94.87% and is based on 78 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

33 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 78 valid reviews, the experience has 33 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 33 face-to-face reviews:

Rating Count Percentage
10/10 17
52%
9/10 10
30%
8/10 5
15%
7/10 1
3%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

93.03% Average

The raw data average (mean) for all the Rangitata Rafts Ltd face-to-face reviews is 93.03% and is based on 33 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

95.23%

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
Liam Elferins 9/10 1817 days 100%
Marjolen Klomphaler 10/10 1840 days 99%
Sabrina Kulikar 10/10 1877 days 97%
sanneke tangel 8/10 2234 days 73%
Maria Schober 8/10 2535 days 58%
kevin george 10/10 3004 days 35%
Stu Murray 10/10 3249 days 22%
Fabian and Teresa 10/10 3270 days 20%
John 9/10 3332 days 17%
roos wubben 9/10 3355 days 16%
wtyson 1/10 3430 days 8%
Chris Marsh 10/10 3640 days 0%
budge69 10/10 3643 days 0%
CHOW 10/10 3766 days 28%
Marinathebraveone 10/10 3980 days 28%
louisemartensson 10/10 3980 days 28%
Becky Foley 9/10 3994 days 28%
NicoleM 8/10 4008 days 26%
Richie 9/10 4008 days 28%
chels144 10/10 4039 days 28%
mandiholtz 10/10 4070 days 28%
Shanel 10/10 4100 days 28%
LouiseVicente 10/10 4284 days 28%
SteveMcPeace 10/10 4314 days 28%
Nicola 10/10 4345 days 28%
Frances Hay 10/10 4372 days 28%
David Roque 10/10 4373 days 28%
Claudia Wälti 10/10 4373 days 28%
grobster 10/10 4373 days 28%
shannahan 9/10 4404 days 28%
ChristinaO 9/10 4404 days 28%
marianne petersen 10/10 4404 days 28%
Becca 10/10 4404 days 28%
Harry Gates 10/10 4404 days 28%
Shooter 10/10 4404 days 28%
godin 10/10 4435 days 28%
Gareth Jones 10/10 4435 days 28%
Gina Swindells 10/10 4446 days 28%
Ric Lee 10/10 4496 days 28%
Louise Humphreys 10/10 4496 days 28%
racheldonn 10/10 4496 days 28%
Sharon Heimeier 9/10 4526 days 28%
AoamC 9/10 4681 days 28%
Nicola 10/10 4682 days 28%
Paul 10/10 4682 days 28%
Neal 10/10 4682 days 28%
Helen Josten 10/10 4689 days 28%
Birgitte Weitemeyer 10/10 4694 days 28%
Greg18 8/10 4710 days 26%
RobC1 9/10 4714 days 28%
RichardB1 10/10 4714 days 28%
JoT 10/10 4714 days 28%
RobH 10/10 4715 days 28%
Steve Sayers 10/10 4716 days 28%
mash 10/10 4725 days 28%
renanf 10/10 4730 days 28%
Bronte Koop 10/10 4735 days 28%
Kasumi 10/10 4738 days 28%
De Kievit 8/10 4747 days 26%
Paul Moisy 10/10 4749 days 28%
Andrew 9/10 4755 days 28%
BenD 7/10 4769 days 25%
Julia Klingberg 10/10 4783 days 28%
Chris Hertz 10/10 4797 days 28%
jon c 10/10 4800 days 28%
Sue Stevens 10/10 4825 days 28%
Dal Piggott 10/10 4844 days 28%
Sam Prior 10/10 4894 days 28%
purplekat99 10/10 5044 days 28%
Renske Tehurne 9/10 5070 days 28%
Janne 10/10 5082 days 28%
John 8/10 5093 days 26%
Matt Walker 10/10 5093 days 28%
Sandra Gustafson 10/10 5121 days 28%
Brynn 9/10 5365 days 28%
David 9/10 5415 days 28%
NeilYeoman 10/10 5416 days 28%
Deirdre 8/10 5457 days 26%

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 Rangitata Rafts Ltd experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.11% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 47 days. However the Rangitata Rafts Ltd 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Rangitata Rafts Ltd experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.05%
198 -4.07%
199 -4.09%
200 -4.11%
201 -4.13%
202 -4.15%
203 -4.17%

Final Ranking Score

91%

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.