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 Coromandel Discovery.

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

Coromandel Discovery

Valid Reviews

27 Valid Reviews

The Coromandel Discovery experience has a total of 27 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 27 valid reviews, the experience has 3 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 27 valid reviews:

Rating Count Percentage
10/10 18
67%
9/10 6
22%
8/10 2
7%
7/10 1
4%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

95.19% Average

The raw data average (mean) for all the Coromandel Discovery valid reviews is 95.19% and is based on 27 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

92.10%

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
fabio griggio 9/10 507 days 59.27 100%
Michael Stoll 7/10 2284 days true 4.05 4%
vanner 10/10 2518 days 3.05 3%
Damian 10/10 2548 days 3.01 3%
allesca 10/10 2791 days 2.68 2%
Jan 10/10 2944 days 2.47 2%
john england 9/10 3005 days 2.38 2%
keane 8/10 3080 days true 2.74 2%
Michele 10/10 3125 days 2.22 1%
Tessa Davidson 10/10 3125 days 2.22 1%
Chris Kaufmann 10/10 3217 days 2.09 1%
HollyB 10/10 3248 days 2.05 1%
Colin Church 8/10 3339 days true 2.31 1%
Angela Cree 10/10 3341 days 1.92 1%
Michael Plaskitt 10/10 3377 days 1.87 1%
Barbara Filoromo 10/10 3398 days 1.85 1%
Maria Valastro 10/10 3446 days 1.78 0%
Spyfox 9/10 3446 days 1.78 0%
Ann Maree 10/10 3454 days 1.77 0%
Trish Peters 9/10 3474 days 1.74 0%
Virginia Williams 10/10 3484 days 1.73 0%
larry736 10/10 3491 days 1.72 0%
Liz Summerville 10/10 3491 days 1.72 0%
Donna Rosoman 10/10 3652 days 1.5 0%
Anja 9/10 3652 days 1.5 0%
Dee Beavan 9/10 3655 days 1.49 0%
Michaela Krauss 10/10 3655 days 1.49 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 Coromandel Discovery experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-7.28% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Coromandel Discovery 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 364 days.

The Coromandel Discovery experience has been adjusted for 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

85%

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.