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

94.97%

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 1698 days 100%
Marjolen Klomphaler 10/10 1721 days 99%
Sabrina Kulikar 10/10 1758 days 97%
sanneke tangel 8/10 2115 days 75%
Maria Schober 8/10 2416 days 60%
kevin george 10/10 2885 days 39%
Stu Murray 10/10 3130 days 27%
Fabian and Teresa 10/10 3151 days 25%
John 9/10 3213 days 22%
roos wubben 9/10 3236 days 21%
wtyson 1/10 3311 days 13%
Chris Marsh 10/10 3521 days 6%
budge69 10/10 3524 days 6%
CHOW 10/10 3647 days 0%
Marinathebraveone 10/10 3861 days 26%
louisemartensson 10/10 3861 days 26%
Becky Foley 9/10 3875 days 26%
NicoleM 8/10 3889 days 25%
Richie 9/10 3889 days 26%
chels144 10/10 3920 days 26%
mandiholtz 10/10 3951 days 26%
Shanel 10/10 3981 days 26%
LouiseVicente 10/10 4165 days 26%
SteveMcPeace 10/10 4195 days 26%
Nicola 10/10 4226 days 26%
Frances Hay 10/10 4253 days 26%
David Roque 10/10 4254 days 26%
Claudia Wälti 10/10 4254 days 26%
grobster 10/10 4254 days 26%
shannahan 9/10 4285 days 26%
ChristinaO 9/10 4285 days 26%
marianne petersen 10/10 4285 days 26%
Becca 10/10 4285 days 26%
Harry Gates 10/10 4285 days 26%
Shooter 10/10 4285 days 26%
godin 10/10 4316 days 26%
Gareth Jones 10/10 4316 days 26%
Gina Swindells 10/10 4327 days 26%
Ric Lee 10/10 4377 days 26%
Louise Humphreys 10/10 4377 days 26%
racheldonn 10/10 4377 days 26%
Sharon Heimeier 9/10 4407 days 26%
AoamC 9/10 4562 days 26%
Nicola 10/10 4563 days 26%
Paul 10/10 4563 days 26%
Neal 10/10 4563 days 26%
Helen Josten 10/10 4570 days 26%
Birgitte Weitemeyer 10/10 4575 days 26%
Greg18 8/10 4591 days 25%
RobC1 9/10 4595 days 26%
RichardB1 10/10 4595 days 26%
JoT 10/10 4595 days 26%
RobH 10/10 4596 days 26%
Steve Sayers 10/10 4597 days 26%
mash 10/10 4605 days 26%
renanf 10/10 4611 days 26%
Bronte Koop 10/10 4616 days 26%
Kasumi 10/10 4619 days 26%
De Kievit 8/10 4628 days 25%
Paul Moisy 10/10 4630 days 26%
Andrew 9/10 4636 days 26%
BenD 7/10 4650 days 24%
Julia Klingberg 10/10 4664 days 26%
Chris Hertz 10/10 4678 days 26%
jon c 10/10 4681 days 26%
Sue Stevens 10/10 4705 days 26%
Dal Piggott 10/10 4725 days 26%
Sam Prior 10/10 4775 days 26%
purplekat99 10/10 4925 days 26%
Renske Tehurne 9/10 4951 days 26%
Janne 10/10 4963 days 26%
John 8/10 4974 days 25%
Matt Walker 10/10 4974 days 26%
Sandra Gustafson 10/10 5002 days 26%
Brynn 9/10 5246 days 26%
David 9/10 5296 days 26%
NeilYeoman 10/10 5297 days 26%
Deirdre 8/10 5338 days 25%

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

-3.14% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 71 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 -3.09%
198 -3.11%
199 -3.12%
200 -3.14%
201 -3.16%
202 -3.17%
203 -3.19%

Final Ranking Score

92%

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.