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 River Valley Rafting.

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

River Valley Rafting

Valid Reviews

48 Valid Reviews

The River Valley Rafting experience has a total of 49 reviews. There are 48 valid reviews that are included when calculating the ranking score and 1 invalid review 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 48 valid reviews:

Rating Count Percentage
10/10 21
44%
9/10 14
29%
8/10 9
19%
7/10 2
4%
6/10 2
4%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.42% Average

The raw data average (mean) for all the River Valley Rafting valid reviews is 90.42% and is based on 48 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

42 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 48 valid reviews, the experience has 42 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 42 face-to-face reviews:

Rating Count Percentage
10/10 15
36%
9/10 14
33%
8/10 9
21%
7/10 2
5%
6/10 2
5%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

89.05% Average

The raw data average (mean) for all the River Valley Rafting face-to-face reviews is 89.05% and is based on 42 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

96.05%

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
R R 10/10 1156 days 4.88 100%
Juliane Mueller 10/10 1679 days true 3.86 79%
Dave Lamb 9/10 1720 days true 3.78 77%
Chris Simpson 10/10 1755 days true 3.71 76%
Josefin Lind 8/10 2415 days true 2.3 47%
Herman Holmgist 10/10 2415 days true 2.42 50%
Kate Morgan 10/10 3520 days true 0.25 5%
Theta 10/10 3897 days 0.0 0%
Michael 10/10 3907 days true 0.0 0%
Canuck85 10/10 4231 days 0.0 0%
danam 10/10 4233 days true 0.0 0%
PBouwmessten 9/10 4251 days true 0.0 0%
boz 10/10 4264 days true 0.0 0%
Tom 9/10 4265 days true 0.0 0%
Tom 8/10 4265 days true 0.0 0%
Karen 9/10 4293 days true 0.0 0%
Sophie 8/10 4303 days true 0.0 0%
Richard Rodd 10/10 4309 days 0.0 0%
tarahenrys 10/10 4352 days 0.0 0%
David 9/10 4451 days true 0.0 0%
Terri Scott 10/10 4467 days true 0.0 0%
Mike Dudey 6/10 4513 days true 0.0 0%
Nick 9/10 4617 days true 0.0 0%
Robert 10/10 4623 days true 0.0 0%
Elise 10/10 4623 days true 0.0 0%
Fung 10/10 4623 days true 0.0 0%
Shannon 7/10 4623 days true 0.0 0%
Hannah Holmes 7/10 4631 days true 0.0 0%
Sue 9/10 4635 days true 0.0 0%
Gina 6/10 4640 days true 0.0 0%
Issy 9/10 4640 days true 0.0 0%
Chris 8/10 4656 days true 0.0 0%
Stacey 8/10 4656 days true 0.0 0%
Christina 10/10 4901 days 0.0 0%
Tomomi 8/10 4959 days true 0.0 0%
Dave 9/10 4961 days true 0.0 0%
Uri 10/10 4961 days true 0.0 0%
James 9/10 4961 days true 0.0 0%
Valerie 9/10 4968 days true 0.0 0%
Karen Nellist 8/10 4986 days true 0.0 0%
GillianW 8/10 4987 days true 0.0 0%
Camilla 9/10 5007 days true 0.0 0%
Twan 8/10 5007 days true 0.0 0%
PaulineTurner 10/10 5008 days true 0.0 0%
RosalindBoyes 9/10 5008 days true 0.0 0%
Paul 10/10 5009 days true 0.0 0%
Stauros 9/10 5009 days true 0.0 0%
ranker_410 10/10 5020 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 River Valley Rafting experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.85% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 50 days. However the River Valley Rafting 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 River Valley Rafting experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.80%
198 -3.82%
199 -3.83%
200 -3.85%
201 -3.87%
202 -3.89%
203 -3.91%

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.