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

91.18%

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
Liam Elferins 9/10 1163 days true 4.87 100%
Marjolen Klomphaler 10/10 1186 days true 4.82 99%
Sabrina Kulikar 10/10 1223 days true 4.75 98%
sanneke tangel 8/10 1580 days true 3.85 79%
Maria Schober 8/10 1881 days true 3.29 68%
kevin george 10/10 2350 days 2.54 52%
Stu Murray 10/10 2595 days true 2.06 42%
Fabian and Teresa 10/10 2616 days true 2.02 42%
John 9/10 2678 days true 1.9 39%
roos wubben 9/10 2701 days true 1.86 38%
wtyson 1/10 2776 days 1.25 26%
Chris Marsh 10/10 2986 days true 1.3 27%
budge69 10/10 2989 days 1.29 27%
CHOW 10/10 3112 days 1.05 22%
Marinathebraveone 10/10 3326 days 0.63 13%
louisemartensson 10/10 3326 days 0.63 13%
Becky Foley 9/10 3340 days true 0.61 12%
NicoleM 8/10 3354 days 0.55 11%
Richie 9/10 3354 days 0.58 12%
chels144 10/10 3385 days 0.52 11%
mandiholtz 10/10 3416 days 0.46 9%
Shanel 10/10 3446 days 0.4 8%
LouiseVicente 10/10 3630 days 0.04 1%
SteveMcPeace 10/10 3660 days 0.0 0%
Nicola 10/10 3691 days 0.0 0%
Frances Hay 10/10 3718 days true 0.0 0%
David Roque 10/10 3719 days 0.0 0%
Claudia Wälti 10/10 3719 days 0.0 0%
grobster 10/10 3719 days 0.0 0%
shannahan 9/10 3750 days 0.0 0%
ChristinaO 9/10 3750 days 0.0 0%
marianne petersen 10/10 3750 days 0.0 0%
Becca 10/10 3750 days 0.0 0%
Harry Gates 10/10 3750 days 0.0 0%
Shooter 10/10 3750 days 0.0 0%
godin 10/10 3781 days 0.0 0%
Gareth Jones 10/10 3781 days 0.0 0%
Gina Swindells 10/10 3792 days true 0.0 0%
Ric Lee 10/10 3842 days 0.0 0%
Louise Humphreys 10/10 3842 days 0.0 0%
racheldonn 10/10 3842 days 0.0 0%
Sharon Heimeier 9/10 3872 days 0.0 0%
AoamC 9/10 4027 days true 0.0 0%
Nicola 10/10 4028 days true 0.0 0%
Paul 10/10 4028 days true 0.0 0%
Neal 10/10 4028 days true 0.0 0%
Helen Josten 10/10 4036 days 0.0 0%
Birgitte Weitemeyer 10/10 4040 days 0.0 0%
Greg18 8/10 4056 days 0.0 0%
RobC1 9/10 4060 days true 0.0 0%
RichardB1 10/10 4060 days true 0.0 0%
JoT 10/10 4060 days true 0.0 0%
RobH 10/10 4061 days true 0.0 0%
Steve Sayers 10/10 4062 days 0.0 0%
mash 10/10 4071 days 0.0 0%
renanf 10/10 4076 days 0.0 0%
Bronte Koop 10/10 4082 days 0.0 0%
Kasumi 10/10 4084 days 0.0 0%
De Kievit 8/10 4093 days true 0.0 0%
Paul Moisy 10/10 4095 days 0.0 0%
Andrew 9/10 4102 days true 0.0 0%
BenD 7/10 4115 days true 0.0 0%
Julia Klingberg 10/10 4130 days 0.0 0%
Chris Hertz 10/10 4144 days 0.0 0%
jon c 10/10 4146 days 0.0 0%
Sue Stevens 10/10 4171 days 0.0 0%
Dal Piggott 10/10 4191 days 0.0 0%
Sam Prior 10/10 4240 days true 0.0 0%
purplekat99 10/10 4390 days 0.0 0%
Renske Tehurne 9/10 4416 days true 0.0 0%
Janne 10/10 4429 days 0.0 0%
John 8/10 4439 days true 0.0 0%
Matt Walker 10/10 4439 days true 0.0 0%
Sandra Gustafson 10/10 4467 days true 0.0 0%
Brynn 9/10 4711 days true 0.0 0%
David 9/10 4761 days true 0.0 0%
NeilYeoman 10/10 4762 days true 0.0 0%
Deirdre 8/10 4803 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 Rangitata Rafts Ltd 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 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 199 days.

The Rangitata Rafts Ltd 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

87%

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.