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

93.18%

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 9/10 993 days true 6.65 100%
Marjolen Klomphaler 10/10 1016 days true 5.99 90%
Sabrina Kulikar 10/10 1053 days true 5.28 79%
sanneke tangel 8/10 1410 days true 4.24 64%
Maria Schober 8/10 1711 days true 3.75 56%
kevin george 10/10 2180 days 3.14 47%
Stu Murray 10/10 2425 days true 2.72 41%
Fabian and Teresa 10/10 2446 days true 2.69 40%
John 9/10 2508 days true 2.58 39%
roos wubben 9/10 2531 days true 2.54 38%
wtyson 1/10 2606 days 1.76 26%
Chris Marsh 10/10 2816 days true 2.05 31%
budge69 10/10 2819 days 2.05 31%
CHOW 10/10 2942 days 1.84 28%
Marinathebraveone 10/10 3156 days 1.47 22%
louisemartensson 10/10 3156 days 1.47 22%
Becky Foley 9/10 3170 days true 1.45 22%
NicoleM 8/10 3184 days 1.35 20%
Richie 9/10 3184 days 1.42 21%
chels144 10/10 3215 days 1.37 21%
mandiholtz 10/10 3246 days 1.32 20%
Shanel 10/10 3276 days 1.27 19%
LouiseVicente 10/10 3460 days 0.95 14%
SteveMcPeace 10/10 3490 days 0.9 14%
Nicola 10/10 3521 days 0.85 13%
Frances Hay 10/10 3548 days true 0.8 12%
David Roque 10/10 3549 days 0.8 12%
Claudia Wälti 10/10 3549 days 0.8 12%
grobster 10/10 3549 days 0.8 12%
shannahan 9/10 3580 days 0.74 11%
ChristinaO 9/10 3580 days 0.74 11%
marianne petersen 10/10 3580 days 0.74 11%
Becca 10/10 3580 days 0.74 11%
Harry Gates 10/10 3580 days 0.74 11%
Shooter 10/10 3580 days 0.74 11%
godin 10/10 3611 days 0.69 10%
Gareth Jones 10/10 3611 days 0.69 10%
Gina Swindells 10/10 3622 days true 0.67 10%
Ric Lee 10/10 3672 days 0.59 9%
Louise Humphreys 10/10 3672 days 0.59 9%
racheldonn 10/10 3672 days 0.59 9%
Sharon Heimeier 9/10 3702 days 0.54 8%
AoamC 9/10 3857 days true 0.27 4%
Nicola 10/10 3858 days true 0.27 4%
Paul 10/10 3858 days true 0.27 4%
Neal 10/10 3858 days true 0.27 4%
Helen Josten 10/10 3865 days 0.26 4%
Birgitte Weitemeyer 10/10 3870 days 0.25 4%
Greg18 8/10 3886 days 0.21 3%
RobC1 9/10 3890 days true 0.21 3%
RichardB1 10/10 3890 days true 0.21 3%
JoT 10/10 3890 days true 0.21 3%
RobH 10/10 3891 days true 0.21 3%
Steve Sayers 10/10 3892 days 0.21 3%
mash 10/10 3901 days 0.2 3%
renanf 10/10 3906 days 0.19 3%
Bronte Koop 10/10 3911 days 0.18 3%
Kasumi 10/10 3914 days 0.17 3%
De Kievit 8/10 3923 days true 0.15 2%
Paul Moisy 10/10 3925 days 0.15 2%
Andrew 9/10 3931 days true 0.14 2%
BenD 7/10 3945 days true 0.11 2%
Julia Klingberg 10/10 3960 days 0.09 1%
Chris Hertz 10/10 3973 days 0.07 1%
jon c 10/10 3976 days 0.07 1%
Sue Stevens 10/10 4001 days 0.02 0%
Dal Piggott 10/10 4020 days 0.0 0%
Sam Prior 10/10 4070 days true 0.0 0%
purplekat99 10/10 4220 days 0.0 0%
Renske Tehurne 9/10 4246 days true 0.0 0%
Janne 10/10 4259 days 0.0 0%
John 8/10 4269 days true 0.0 0%
Matt Walker 10/10 4269 days true 0.0 0%
Sandra Gustafson 10/10 4297 days true 0.0 0%
Brynn 9/10 4541 days true 0.0 0%
David 9/10 4591 days true 0.0 0%
NeilYeoman 10/10 4592 days true 0.0 0%
Deirdre 8/10 4633 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

89%

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.