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 Abel Tasman Sailing Adventures.

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

Abel Tasman Sailing Adventures

Valid Reviews

83 Valid Reviews

The Abel Tasman Sailing Adventures experience has a total of 83 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.

Below is the distribution of ratings for the 83 valid reviews:

Rating Count Percentage
10/10 18
22%
9/10 28
34%
8/10 23
28%
7/10 8
10%
6/10 2
2%
5/10 3
4%
4/10 1
1%
3/10 0
0%
2/10 0
0%
1/10 0
0%

84.70% Average

The raw data average (mean) for all the Abel Tasman Sailing Adventures valid reviews is 84.70% and is based on 83 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

76 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 83 valid reviews, the experience has 76 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 76 face-to-face reviews:

Rating Count Percentage
10/10 14
18%
9/10 27
36%
8/10 21
28%
7/10 8
11%
6/10 2
3%
5/10 3
4%
4/10 1
1%
3/10 0
0%
2/10 0
0%
1/10 0
0%

83.95% Average

The raw data average (mean) for all the Abel Tasman Sailing Adventures face-to-face reviews is 83.95% and is based on 76 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

84.03%

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
Shay S 8/10 2177 days 2.74 100%
Jon Barratt 9/10 2610 days true 2.04 74%
Rolf Zwahlen 9/10 2611 days true 2.03 74%
Janse 8/10 2895 days true 1.4 51%
Richard Maddock 8/10 2896 days true 1.4 51%
Ute Rogawski 4/10 2900 days true 1.16 42%
John & Myra Sloan 9/10 2979 days true 1.31 48%
Mary Banks 10/10 3238 days true 0.81 29%
Lenny Appel 9/10 3246 days true 0.79 29%
Nadja 9/10 3260 days true 0.76 28%
Hannah Watts 7/10 3260 days true 0.69 25%
Jayne 9/10 3260 days true 0.76 28%
Tina 9/10 3264 days true 0.76 28%
Heike Toepelt 8/10 3265 days true 0.72 26%
Jason Hernandez 8/10 3266 days true 0.71 26%
Petersen 10/10 3266 days true 0.75 27%
Georgina Davey 10/10 3270 days true 0.74 27%
Angela 9/10 3531 days true 0.23 9%
joycevanb 8/10 3549 days true 0.19 7%
Kay Beaumont 10/10 3612 days true 0.07 3%
Johan 8/10 3612 days true 0.07 3%
Belinda Godhard 9/10 3635 days true 0.03 1%
liddellfiona 10/10 3669 days 0.0 0%
paulj 10/10 3685 days true 0.0 0%
richelle 9/10 3693 days true 0.0 0%
Cat Payne 9/10 3857 days true 0.0 0%
Nikki Turner 8/10 3865 days true 0.0 0%
AndreaT 9/10 3940 days true 0.0 0%
TaraD 8/10 3942 days true 0.0 0%
BiancaA 8/10 3942 days true 0.0 0%
suet 9/10 3944 days true 0.0 0%
rosil 9/10 3944 days true 0.0 0%
Martina Bumiller 8/10 3949 days true 0.0 0%
DennisK 7/10 3956 days true 0.0 0%
Torsten 8/10 3963 days true 0.0 0%
Steve Piluke 10/10 3982 days 0.0 0%
Brian 6/10 3984 days true 0.0 0%
Paul 8/10 3987 days true 0.0 0%
Christina 10/10 3992 days true 0.0 0%
Linda Coles 10/10 4003 days 0.0 0%
Tasha-Moana Archibald 10/10 4003 days 0.0 0%
Freja 10/10 4016 days true 0.0 0%
Sonja 7/10 4048 days true 0.0 0%
Karen 10/10 4062 days true 0.0 0%
Chris Hertz 9/10 4062 days 0.0 0%
Abby 8/10 4308 days 0.0 0%
Naoko 9/10 4310 days true 0.0 0%
Jennifer Baulch 9/10 4320 days true 0.0 0%
Marion 5/10 4324 days true 0.0 0%
Christian 8/10 4331 days true 0.0 0%
Steve Burke 7/10 4331 days true 0.0 0%
Sabine 10/10 4335 days true 0.0 0%
Greg & Lynette 10/10 4337 days true 0.0 0%
Roger Repolusk 8/10 4341 days true 0.0 0%
Simon Mills 9/10 4341 days true 0.0 0%
Christian Schwerdt 8/10 4345 days true 0.0 0%
Wanda 9/10 4345 days true 0.0 0%
Knol 9/10 4345 days true 0.0 0%
Neil 8/10 4357 days true 0.0 0%
Emma 10/10 4358 days true 0.0 0%
Tamzin 10/10 4358 days true 0.0 0%
Laura 9/10 4380 days true 0.0 0%
Swen Schroder 5/10 4384 days true 0.0 0%
Jann Anderssen 10/10 4384 days true 0.0 0%
Alex 9/10 4386 days true 0.0 0%
Mette de Graap 7/10 4386 days true 0.0 0%
Thierry Berdah 10/10 4387 days true 0.0 0%
Helena 7/10 4387 days true 0.0 0%
Peter Katafey 7/10 4387 days true 0.0 0%
Lindsey Woosnam 9/10 4387 days true 0.0 0%
Bronwyn Gaby 8/10 4390 days true 0.0 0%
Gail 9/10 4390 days true 0.0 0%
Willemien 9/10 4436 days true 0.0 0%
Richard Kindgren 7/10 4436 days true 0.0 0%
silja tans 9/10 4436 days true 0.0 0%
David 5/10 4665 days true 0.0 0%
Heather 9/10 4681 days true 0.0 0%
Jossy 8/10 4713 days true 0.0 0%
Italy 9/10 4716 days true 0.0 0%
Nina 8/10 4716 days true 0.0 0%
Helen 8/10 4716 days true 0.0 0%
Colin 6/10 4718 days true 0.0 0%
Didier 8/10 4718 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 Abel Tasman Sailing Adventures experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Abel Tasman Sailing Adventures 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 199 days.

The Abel Tasman Sailing Adventures experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

80%

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.