Ranking Score Explained

Hello 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 CharterLink.

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

CharterLink

Valid Reviews

67 Valid Reviews

The CharterLink experience has a total of 67 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 67 valid reviews, the experience has 3 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 67 valid reviews:

Rating Count Percentage
10/10 49
73%
9/10 15
22%
8/10 3
4%
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%

96.87% Average

The raw data average (mean) for all the CharterLink valid reviews is 96.87% and is based on 67 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

97.05%

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 Relative Weight
Val Mackie 10/10 2418 days 100%
steve cooper 10/10 2693 days 76%
Myles Henaghan 9/10 2693 days 76%
David Jones 9/10 2724 days 73%
lisa Mackay 10/10 2783 days 68%
Steve Barham 10/10 2783 days 68%
Karl Risch 10/10 2783 days 68%
James Mackenzie 9/10 3090 days 40%
Stu Thomas 10/10 3090 days 40%
Eric Sinton 10/10 3118 days 38%
Johannes Markus 9/10 3147 days 17%
Peter Haarhaus 10/10 3149 days 35%
Tina Hejrskov 10/10 3149 days 35%
Lynette Ashby 10/10 3149 days 35%
Andy Campbell 8/10 3149 days 33%
Matt A 10/10 3149 days 35%
suzanne_b 9/10 3180 days 32%
simon_k 8/10 3455 days 7%
greg payne 9/10 3455 days 8%
Peter Trezise 10/10 3455 days 8%
Brian Walsh 9/10 3455 days 8%
Suzib23 10/10 3514 days 3%
Chris Rackham 10/10 3514 days 3%
Roger Richardson 10/10 3514 days 3%
grudels 10/10 3514 days 3%
Shane Armstrong 10/10 3514 days 3%
Fraser_Hurrell 10/10 3545 days 0%
lonetelemarker 10/10 3667 days 36%
JaredL 10/10 3789 days 36%
HyattBrowns 10/10 3789 days 36%
brahms 10/10 3820 days 36%
BrentWW 10/10 3820 days 36%
paul_thompson_nz 9/10 3820 days 36%
wthomson 9/10 3849 days 36%
greg 10/10 3849 days 36%
geoffgage 9/10 3849 days 36%
Adam Clatworthy 10/10 4186 days 36%
Frazer 10/10 4186 days 36%
Warwick_M 9/10 4186 days 36%
ziemkes 10/10 4214 days 36%
mark_elley 10/10 4245 days 36%
NickC 10/10 4245 days 36%
boycejw 10/10 4245 days 36%
OKRobbo 10/10 4245 days 36%
LOUIS485 10/10 4276 days 36%
Craig_Climo 10/10 4490 days 36%
Chris Renall 10/10 4520 days 36%
MedaryB 9/10 4520 days 36%
Jakped 10/10 4520 days 36%
JohnWOLFF 8/10 4520 days 34%
Christina Martin 10/10 4551 days 36%
Chris Shirley 10/10 4551 days 36%
Eric Sinton 10/10 4551 days 36%
noelburns 10/10 4551 days 36%
machonchon 10/10 4579 days 36%
pbutterworth 10/10 4579 days 36%
hendrik gottschalk 10/10 4610 days 36%
Gareth Ayre 10/10 4610 days 36%
gemmav 9/10 4625 days 18%
brampa 10/10 4702 days 36%
Stiernacken 10/10 4855 days 36%
Goodman 9/10 4855 days 36%
Jim_001 10/10 4896 days 18%
Childers 10/10 4897 days 36%
hauraki 10/10 4899 days 36%
johnhargs30 9/10 4916 days 36%
Kate Bilham 10/10 4916 days 36%

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 CharterLink experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.31% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 113 days. However the CharterLink 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 CharterLink experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -2.28%
198 -2.29%
199 -2.30%
200 -2.31%
201 -2.32%
202 -2.33%
203 -2.35%

Final Ranking Score

95%

The final ranking score once any adjustments, ratings, 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.