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 Eco 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

Eco Rafting

Valid Reviews

38 Valid Reviews

The Eco Rafting experience has a total of 38 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.

Within these 38 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.

Below is the distribution of ratings for the 38 valid reviews:

Rating Count Percentage
10/10 34
89%
9/10 3
8%
8/10 1
3%
7/10 0
0%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

98.68% Average

The raw data average (mean) for all the Eco Rafting valid reviews is 98.68% and is based on 38 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Weighted Average

96.54%

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
Tom and Jemima Rawlings 8/10 2847 days true 1.49 96%
GillClaireaux 9/10 2856 days 1.55 100%
ashewmaker 10/10 2886 days 1.5 96%
grant99 10/10 3131 days 1.02 65%
biabo 10/10 3160 days 0.96 62%
tommy_tom48 10/10 3160 days 0.96 62%
SarahB 10/10 3191 days 0.9 58%
Bonney 10/10 3252 days 0.78 50%
tjemery 10/10 3252 days 0.78 50%
Yaling 10/10 3252 days 0.78 50%
Bingo_Bing 10/10 3252 days 0.78 50%
Phanson 10/10 3466 days 0.36 23%
andybland1234 10/10 3497 days 0.3 19%
Joe_Lin 10/10 3497 days 0.3 19%
blondini006 10/10 3556 days 0.18 12%
richaxon 10/10 3556 days 0.18 12%
totlhip 10/10 3556 days 0.18 12%
the_catalpa 10/10 3587 days 0.12 8%
Toothpickcharlie 10/10 3831 days 0.0 0%
Rachel Smith 10/10 3890 days 0.0 0%
Kyler Toth 10/10 3890 days 0.0 0%
Roger25 10/10 3890 days 0.0 0%
Leah Stangle 10/10 3890 days 0.0 0%
Orla Goble 10/10 3921 days 0.0 0%
gsutton 10/10 3921 days 0.0 0%
Julz 10/10 3921 days 0.0 0%
flygirl 10/10 3921 days 0.0 0%
Misha 10/10 3952 days 0.0 0%
Pauline Wan 9/10 3982 days 0.0 0%
murraynkya 10/10 4074 days 0.0 0%
Kathy Martin 10/10 4227 days 0.0 0%
shiran 10/10 4246 days 0.0 0%
BOBT708 10/10 4247 days 0.0 0%
Courtney Smith 9/10 4247 days 0.0 0%
Freedom Rafter 10/10 4247 days 0.0 0%
gpollino 10/10 4280 days 0.0 0%
Ellie 10/10 4559 days 0.0 0%
Andrew Purdam 10/10 4652 days 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 Eco Rafting experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.18% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 70 days. However the Eco 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 Eco Rafting experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.14%
198 -3.15%
199 -3.17%
200 -3.18%
201 -3.20%
202 -3.22%
203 -3.23%

Final Ranking Score

93%

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.