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 Akaroa Dolphins.

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

Akaroa Dolphins

Valid Reviews

79 Valid Reviews

The Akaroa Dolphins experience has a total of 80 reviews. There are 79 valid reviews that are included when calculating the ranking score and 1 invalid review 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 79 valid reviews:

Rating Count Percentage
10/10 32
41%
9/10 26
33%
8/10 15
19%
7/10 3
4%
6/10 3
4%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.25% Average

The raw data average (mean) for all the Akaroa Dolphins valid reviews is 90.25% and is based on 79 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

59 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 79 valid reviews, the experience has 59 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 59 face-to-face reviews:

Rating Count Percentage
10/10 19
32%
9/10 20
34%
8/10 14
24%
7/10 3
5%
6/10 3
5%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

88.31% Average

The raw data average (mean) for all the Akaroa Dolphins face-to-face reviews is 88.31% and is based on 59 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

90.88%

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
Lucy C 9/10 459 days 100%
Christine 9/10 518 days 86%
Tracey Cron 9/10 549 days 78%
Inga Hoffmann 10/10 1249 days 7%
Freddrick Weiser 9/10 1586 days 6%
Mike Dw 9/10 1702 days 5%
Nolwen 9/10 2062 days 4%
The Beans 10/10 2071 days 4%
Ross D 10/10 2076 days 4%
Peter Passlack 10/10 2079 days 4%
Chea Hao Wong 10/10 2132 days 4%
Caroline Shaw 10/10 2301 days 4%
Pierre Mathis 10/10 2312 days 4%
Brenda Oomen 10/10 2315 days 4%
Estelle Daniel 10/10 2319 days 4%
Kim-Lara 8/10 2334 days 3%
Tamara 10/10 2348 days 4%
Sandra P 10/10 2376 days 3%
Marie Schmid 10/10 2703 days 3%
Angie Cairns 10/10 2733 days 2%
Jimmy Shaw 10/10 2986 days 2%
Wendy Hawkins 8/10 3407 days 0%
Roger Hawkins 9/10 3407 days 0%
Tanja Schlagermann 10/10 3414 days 0%
Alexander Mukasa 10/10 3414 days 0%
Erik Muchembled 10/10 3416 days 0%
Andrea Lang 8/10 3418 days 0%
Xtian_P 10/10 3502 days 0%
michellephil 10/10 3563 days 0%
nztintin 10/10 3777 days 1%
mandd 10/10 3777 days 1%
Orlando 9/10 3789 days 1%
Uwe Herrdum 9/10 3793 days 1%
Francis Corrigan 9/10 3807 days 1%
John & Vicki 9/10 3884 days 1%
G Tulloch 9/10 4106 days 1%
Edward Marhi 8/10 4109 days 1%
Robin Adair 9/10 4130 days 1%
Sandra Schulz 9/10 4137 days 1%
Derek Puplett 9/10 4147 days 1%
Martin Current 9/10 4158 days 1%
Hartmut Vogt 10/10 4159 days 1%
allesca 9/10 4263 days 1%
Mary Van 8/10 4324 days 1%
penz 9/10 4386 days 1%
victoriauk 8/10 4416 days 1%
Susanne Strassmann 6/10 4514 days 1%
M Sicard 9/10 4518 days 1%
Lasse Olesen 9/10 4529 days 1%
Keith Wilde 8/10 4531 days 1%
Sarah Goeckener 9/10 4608 days 1%
katharina 10/10 4608 days 1%
Katrin Wennin 8/10 4609 days 1%
Thorben Thede 9/10 4610 days 1%
Roma 10/10 4621 days 1%
HairyHaggis 10/10 4628 days 1%
Ronny 6/10 4847 days 1%
ChristinaV 10/10 4852 days 1%
JudithLehr 6/10 4854 days 1%
Steven 10/10 4859 days 1%
StijnH 8/10 4859 days 1%
FramiskaH 8/10 4860 days 1%
StefanGermany1 8/10 4860 days 1%
JaninaF 10/10 4860 days 1%
Tatjane 9/10 4874 days 1%
XaviG 9/10 4876 days 1%
JesusB 7/10 4876 days 1%
Denk 8/10 4904 days 1%
Katie Mitchell 10/10 4993 days 1%
Ben Ackland 8/10 5229 days 1%
Tessa McCormick 8/10 5239 days 1%
John Beirne 10/10 5596 days 1%
ranker_110 7/10 5600 days 1%
Christine 10/10 5605 days 1%
Helle 9/10 5607 days 1%
John 7/10 5607 days 1%
Reggie 10/10 5608 days 1%
Dave 9/10 5619 days 1%
Beate 8/10 5620 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 Dolphins experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.03% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 123 days. However the Akaroa Dolphins 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 Dolphins experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -1.99%
198 -2.00%
199 -2.02%
200 -2.03%
201 -2.04%
202 -2.05%
203 -2.06%

Final Ranking Score

89%

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.