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

95.01%

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 9/10 566 days true 59.21 100%
Marjolen Klomphaler 10/10 589 days true 54.69 92%
Sabrina Kulikar 10/10 626 days true 47.83 80%
sanneke tangel 8/10 983 days true 8.39 13%
Maria Schober 8/10 1284 days true 5.69 8%
kevin george 10/10 1753 days 4.1 6%
Stu Murray 10/10 1998 days true 4.52 6%
Fabian and Teresa 10/10 2019 days true 4.48 6%
John 9/10 2081 days true 4.38 6%
roos wubben 9/10 2104 days true 4.34 6%
wtyson 1/10 2179 days 2.99 4%
Chris Marsh 10/10 2389 days true 3.87 5%
budge69 10/10 2392 days 3.22 4%
CHOW 10/10 2515 days 3.05 4%
Marinathebraveone 10/10 2729 days 2.76 3%
louisemartensson 10/10 2729 days 2.76 3%
Becky Foley 9/10 2743 days true 3.29 4%
NicoleM 8/10 2757 days 2.72 3%
Richie 9/10 2757 days 2.72 3%
chels144 10/10 2788 days 2.68 3%
mandiholtz 10/10 2819 days 2.64 3%
Shanel 10/10 2849 days 2.6 3%
LouiseVicente 10/10 3033 days 2.35 3%
SteveMcPeace 10/10 3063 days 2.3 2%
Nicola 10/10 3094 days 2.26 2%
Frances Hay 10/10 3121 days true 2.67 3%
David Roque 10/10 3122 days 2.22 2%
Claudia Wälti 10/10 3122 days 2.22 2%
grobster 10/10 3122 days 2.22 2%
shannahan 9/10 3153 days 2.18 2%
ChristinaO 9/10 3153 days 2.18 2%
marianne petersen 10/10 3153 days 2.18 2%
Becca 10/10 3153 days 2.18 2%
Harry Gates 10/10 3153 days 2.18 2%
Shooter 10/10 3153 days 2.18 2%
godin 10/10 3184 days 2.14 2%
Gareth Jones 10/10 3184 days 2.14 2%
Gina Swindells 10/10 3195 days true 2.55 3%
Ric Lee 10/10 3245 days 2.05 2%
Louise Humphreys 10/10 3245 days 2.05 2%
racheldonn 10/10 3245 days 2.05 2%
Sharon Heimeier 9/10 3275 days 2.01 2%
AoamC 9/10 3430 days true 2.16 2%
Nicola 10/10 3431 days true 2.16 2%
Paul 10/10 3431 days true 2.16 2%
Neal 10/10 3431 days true 2.16 2%
Helen Josten 10/10 3438 days 1.79 2%
Birgitte Weitemeyer 10/10 3443 days 1.78 2%
Greg18 8/10 3459 days 1.76 2%
RobC1 9/10 3463 days true 2.11 2%
RichardB1 10/10 3463 days true 2.11 2%
JoT 10/10 3463 days true 2.11 2%
RobH 10/10 3464 days true 2.11 2%
Steve Sayers 10/10 3465 days 1.75 1%
mash 10/10 3474 days 1.74 1%
renanf 10/10 3479 days 1.73 1%
Bronte Koop 10/10 3484 days 1.73 1%
Kasumi 10/10 3487 days 1.72 1%
De Kievit 8/10 3496 days true 2.05 2%
Paul Moisy 10/10 3498 days 1.71 1%
Andrew 9/10 3504 days true 2.04 2%
BenD 7/10 3518 days true 2.02 2%
Julia Klingberg 10/10 3532 days 1.66 1%
Chris Hertz 10/10 3546 days 1.64 1%
jon c 10/10 3549 days 1.64 1%
Sue Stevens 10/10 3574 days 1.6 1%
Dal Piggott 10/10 3593 days 1.58 1%
Sam Prior 10/10 3643 days true 1.81 2%
purplekat99 10/10 3793 days 1.3 1%
Renske Tehurne 9/10 3819 days true 1.52 1%
Janne 10/10 3832 days 1.25 1%
John 8/10 3842 days true 1.48 1%
Matt Walker 10/10 3842 days true 1.48 1%
Sandra Gustafson 10/10 3870 days true 1.44 1%
Brynn 9/10 4114 days true 1.04 0%
David 9/10 4164 days true 0.96 0%
NeilYeoman 10/10 4165 days true 0.95 0%
Deirdre 8/10 4206 days true 0.89 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

-7.28% 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 364 days.

The Rangitata Rafts Ltd experience has been adjusted for 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

88%

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.