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 firstname.lastname@example.org. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
76 Valid Reviews
The Akaroa Dolphins experience has a total of 77 reviews. There are 76 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 76 valid reviews:
The raw data average (mean) for all the Akaroa Dolphins valid reviews is 90.26% and is based on 76 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
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.
Within the 76 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:
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.
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.
|Inga Hoffmann||10/10||387 days||76.27||100%|
|Freddrick Weiser||9/10||724 days||26.81||35%|
|Mike Dw||9/10||840 days||15.3||20%|
|The Beans||10/10||1209 days||4.78||6%|
|Ross D||10/10||1214 days||4.77||6%|
|Peter Passlack||10/10||1217 days||4.76||6%|
|Chea Hao Wong||10/10||1270 days||4.66||6%|
|Caroline Shaw||10/10||1439 days||4.33||6%|
|Pierre Mathis||10/10||1450 days||4.31||6%|
|Brenda Oomen||10/10||1453 days||4.3||6%|
|Estelle Daniel||10/10||1457 days||4.29||6%|
|Sandra P||10/10||1514 days||4.18||5%|
|Marie Schmid||10/10||1841 days||3.54||5%|
|Angie Cairns||10/10||1871 days||3.48||5%|
|Jimmy Shaw||10/10||2124 days||2.99||4%|
|Wendy Hawkins||8/10||2545 days||2.05||3%|
|Roger Hawkins||9/10||2545 days||2.16||3%|
|Tanja Schlagermann||10/10||2552 days||2.15||3%|
|Alexander Mukasa||10/10||2552 days||2.15||3%|
|Erik Muchembled||10/10||2554 days||2.14||3%|
|Andrea Lang||8/10||2556 days||2.03||3%|
|Uwe Herrdum||9/10||2931 days||1.41||2%|
|Francis Corrigan||9/10||2945 days||1.38||2%|
|John & Vicki||9/10||3022 days||1.23||2%|
|G Tulloch||9/10||3244 days||0.79||1%|
|Edward Marhi||8/10||3247 days||0.75||1%|
|Robin Adair||9/10||3268 days||0.75||1%|
|Sandra Schulz||9/10||3275 days||0.73||1%|
|Derek Puplett||9/10||3285 days||0.71||1%|
|Martin Current||9/10||3296 days||0.69||1%|
|Hartmut Vogt||10/10||3297 days||0.69||1%|
|Mary Van||8/10||3462 days||0.35||0%|
|Susanne Strassmann||6/10||3652 days||0.0||0%|
|M Sicard||9/10||3656 days||0.0||0%|
|Lasse Olesen||9/10||3667 days||0.0||0%|
|Keith Wilde||8/10||3669 days||0.0||0%|
|Sarah Goeckener||9/10||3746 days||0.0||0%|
|Katrin Wennin||8/10||3747 days||0.0||0%|
|Thorben Thede||9/10||3748 days||0.0||0%|
|Katie Mitchell||10/10||4131 days||0.0||0%|
|Ben Ackland||8/10||4367 days||0.0||0%|
|Tessa McCormick||8/10||4377 days||0.0||0%|
|John Beirne||10/10||4734 days||0.0||0%|
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
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.
There may be an adjustment if an experience hasn't received any reviews within the last 60 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 199 days.
The Akaroa Dolphins experience has been adjusted for 199 days. Adjustments are according to the following table.
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 email@example.com.