Ranking Score Explained

G'day 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 Akaroa Harbour Nature Cruises.

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.

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Cymen Crick

Rankers Owner

Akaroa Harbour Nature Cruises

Valid Reviews

58 Valid Reviews

The Akaroa Harbour Nature Cruises experience has a total of 58 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 58 valid reviews:

Rating Count Percentage
10/10 14
24%
9/10 19
33%
8/10 14
24%
7/10 6
10%
6/10 0
0%
5/10 2
3%
4/10 1
2%
3/10 1
2%
2/10 0
0%
1/10 1
2%

83.28% Average

The raw data average (mean) for all the Akaroa Harbour Nature Cruises valid reviews is 83.28% and is based on 58 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

48 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 58 valid reviews, the experience has 48 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 48 face-to-face reviews:

Rating Count Percentage
10/10 8
17%
9/10 17
35%
8/10 14
29%
7/10 6
13%
6/10 0
0%
5/10 1
2%
4/10 1
2%
3/10 1
2%
2/10 0
0%
1/10 0
0%

83.13% Average

The raw data average (mean) for all the Akaroa Harbour Nature Cruises face-to-face reviews is 83.13% and is based on 48 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

94.43%

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
Sabrina Saunders 10/10 155 days 100%
Stefano Clerici 10/10 1466 days 4%
Sue Milne 10/10 1957 days 3%
Fran and Ben 10/10 1968 days 3%
Patricia 8/10 2294 days 2%
Ceri Eaton 9/10 2323 days 2%
Thomas Zilio 4/10 3066 days 1%
JoMary Smith 9/10 3108 days 1%
Marco Schmidt 10/10 3393 days 0%
Christian Schumacher 10/10 3393 days 0%
Karin Genyn 10/10 3490 days 0%
N Zitscher 5/10 3507 days 0%
Peter Harden 9/10 3509 days 0%
Jenny McTigue 8/10 3789 days 1%
Mike & Jennie 8/10 3790 days 1%
Stefes Wencke 10/10 3792 days 1%
Johan Kroese 9/10 3819 days 1%
Herbert 8/10 3821 days 1%
Michael 9/10 4128 days 1%
Richard Dudfield 10/10 4131 days 1%
Louise van der Hyden 9/10 4143 days 1%
elmoandjoey 10/10 4235 days 1%
Tim 10/10 4265 days 1%
Conny 9/10 4444 days 1%
Victoria Slater 7/10 4484 days 1%
Risch & Seybold 9/10 4492 days 1%
Schumacher 9/10 4497 days 1%
Greg Kennedy 9/10 4557 days 1%
csziegler 10/10 4584 days 1%
stephenb 8/10 4594 days 1%
carsteng 7/10 4594 days 1%
Kathrin Thomas 9/10 4612 days 1%
james masura 10/10 4630 days 1%
Steve Drake 1/10 4691 days 1%
Andrea 7/10 4764 days 1%
stephen 9/10 4846 days 1%
NatasjaV 8/10 4862 days 1%
JimmyK 8/10 4862 days 1%
JohannaB 7/10 4863 days 1%
Peter Bowen-Simpkins 9/10 4864 days 1%
eatc 9/10 4875 days 1%
Daniel 3/10 4881 days 1%
schenk 8/10 4895 days 1%
groenewold 8/10 4909 days 1%
Karen 8/10 4915 days 1%
Ducolq 7/10 4916 days 1%
Rebekka 5/10 4916 days 1%
Mary Hamilton 10/10 5009 days 1%
Esther 8/10 5051 days 1%
Jim Summers 8/10 5093 days 1%
Stewart 8/10 5227 days 1%
angela 9/10 5227 days 1%
Bauer 7/10 5242 days 1%
Kenneth and Mette 8/10 5244 days 1%
Knol 9/10 5245 days 1%
Dorris Schwarz 9/10 5290 days 1%
Eleanor Adams 9/10 5336 days 1%
Fred 9/10 5574 days 1%

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 Akaroa Harbour Nature Cruises experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-1.38% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 124 days. However the Akaroa Harbour Nature Cruises 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 Akaroa Harbour Nature Cruises experience has been adjusted for 137 days. Adjustments are according to the following table.

Days Adjustment
134 -1.35%
135 -1.36%
136 -1.37%
137 -1.38%
138 -1.39%
139 -1.40%
140 -1.41%

Final Ranking Score

93%

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.