G'day, 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.

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Cymen Crick's avatar

Cymen Crick

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

95.31%

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 2941 days 100%
Marjolen Klomphaler 10/10 2964 days 99%
Sabrina Kulikar 10/10 3001 days 97%
sanneke tangel 8/10 3358 days 70%
Maria Schober 8/10 3659 days 49%
kevin george 10/10 4128 days 17%
Stu Murray 10/10 4373 days 0%
Fabian and Teresa 10/10 4394 days 36%
John 9/10 4456 days 35%
roos wubben 9/10 4479 days 35%
wtyson 1/10 4554 days 14%
Chris Marsh 10/10 4764 days 36%
budge69 10/10 4767 days 36%
CHOW 10/10 4890 days 36%
Marinathebraveone 10/10 5104 days 36%
louisemartensson 10/10 5104 days 36%
Becky Foley 9/10 5118 days 35%
NicoleM 8/10 5132 days 35%
Richie 9/10 5132 days 35%
chels144 10/10 5163 days 36%
mandiholtz 10/10 5194 days 36%
Shanel 10/10 5224 days 36%
LouiseVicente 10/10 5408 days 36%
SteveMcPeace 10/10 5438 days 36%
Nicola 10/10 5469 days 36%
Frances Hay 10/10 5496 days 36%
David Roque 10/10 5497 days 36%
Claudia Wälti 10/10 5497 days 36%
grobster 10/10 5497 days 36%
shannahan 9/10 5528 days 35%
ChristinaO 9/10 5528 days 35%
marianne petersen 10/10 5528 days 36%
Becca 10/10 5528 days 36%
Harry Gates 10/10 5528 days 36%
Shooter 10/10 5528 days 36%
godin 10/10 5559 days 36%
Gareth Jones 10/10 5559 days 36%
Gina Swindells 10/10 5570 days 36%
Ric Lee 10/10 5620 days 36%
Louise Humphreys 10/10 5620 days 36%
racheldonn 10/10 5620 days 36%
Sharon Heimeier 9/10 5650 days 35%
AoamC 9/10 5805 days 35%
Nicola 10/10 5806 days 36%
Paul 10/10 5806 days 36%
Neal 10/10 5806 days 36%
Helen Josten 10/10 5813 days 36%
Birgitte Weitemeyer 10/10 5818 days 36%
Greg18 8/10 5834 days 35%
RobC1 9/10 5838 days 35%
RichardB1 10/10 5838 days 36%
JoT 10/10 5838 days 36%
RobH 10/10 5839 days 36%
Steve Sayers 10/10 5840 days 36%
mash 10/10 5849 days 36%
renanf 10/10 5854 days 36%
Bronte Koop 10/10 5859 days 36%
Kasumi 10/10 5862 days 36%
De Kievit 8/10 5871 days 35%
Paul Moisy 10/10 5873 days 36%
Andrew 9/10 5879 days 35%
BenD 7/10 5893 days 33%
Julia Klingberg 10/10 5907 days 36%
Chris Hertz 10/10 5921 days 36%
jon c 10/10 5924 days 36%
Sue Stevens 10/10 5949 days 36%
Dal Piggott 10/10 5968 days 36%
Sam Prior 10/10 6018 days 36%
purplekat99 10/10 6168 days 36%
Renske Tehurne 9/10 6194 days 35%
Janne 10/10 6207 days 36%
John 8/10 6217 days 35%
Matt Walker 10/10 6217 days 36%
Sandra Gustafson 10/10 6245 days 36%
Brynn 9/10 6489 days 35%
David 9/10 6539 days 35%
NeilYeoman 10/10 6540 days 36%
Deirdre 8/10 6581 days 35%

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

-4.15% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 53 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 -4.08%
198 -4.10%
199 -4.13%
200 -4.15%
201 -4.17%
202 -4.19%
203 -4.21%

Balancing Adjustment

0.85% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

92%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.