Ranking Score Explained

Kia ora, 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.

Cymen Crick's avatar

Cymen Crick

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

99.19%

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
Tom and Jemima Rawlings 8/10 4376 days 0%
GillClaireaux 9/10 4385 days 99%
ashewmaker 10/10 4415 days 100%
grant99 10/10 4660 days 100%
biabo 10/10 4689 days 100%
tommy_tom48 10/10 4689 days 100%
SarahB 10/10 4720 days 100%
Bonney 10/10 4781 days 100%
tjemery 10/10 4781 days 100%
Yaling 10/10 4781 days 100%
Bingo_Bing 10/10 4781 days 100%
Phanson 10/10 4995 days 100%
andybland1234 10/10 5026 days 100%
Joe_Lin 10/10 5026 days 100%
blondini006 10/10 5085 days 100%
richaxon 10/10 5085 days 100%
totlhip 10/10 5085 days 100%
the_catalpa 10/10 5116 days 100%
Toothpickcharlie 10/10 5360 days 100%
Rachel Smith 10/10 5419 days 100%
Kyler Toth 10/10 5419 days 100%
Roger25 10/10 5419 days 100%
Leah Stangle 10/10 5419 days 100%
Orla Goble 10/10 5450 days 100%
gsutton 10/10 5450 days 100%
Julz 10/10 5450 days 100%
flygirl 10/10 5450 days 100%
Misha 10/10 5481 days 100%
Pauline Wan 9/10 5511 days 99%
murraynkya 10/10 5603 days 100%
Kathy Martin 10/10 5756 days 100%
shiran 10/10 5775 days 100%
BOBT708 10/10 5776 days 100%
Courtney Smith 9/10 5776 days 99%
Freedom Rafter 10/10 5776 days 100%
gpollino 10/10 5809 days 100%
Ellie 10/10 6088 days 100%
Andrew Purdam 10/10 6181 days 100%

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

-4.07% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 42 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 -4.01%
198 -4.03%
199 -4.05%
200 -4.07%
201 -4.09%
202 -4.11%
203 -4.13%

Balancing Adjustment

0.42% 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

96%

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.