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 Centre of New Zealand.

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

Centre of New Zealand

Valid Reviews

15 Valid Reviews

The Centre of New Zealand experience has a total of 15 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 15 valid reviews:

Rating Count Percentage
10/10 2
13%
9/10 4
27%
8/10 4
27%
7/10 3
20%
6/10 1
7%
5/10 1
7%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

80.00% Average

The raw data average (mean) for all the Centre of New Zealand valid reviews is 80.00% and is based on 15 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

15 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 15 valid reviews, the experience has 15 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 15 face-to-face reviews:

Rating Count Percentage
10/10 2
13%
9/10 4
27%
8/10 4
27%
7/10 3
20%
6/10 1
7%
5/10 1
7%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

80.00% Average

The raw data average (mean) for all the Centre of New Zealand face-to-face reviews is 80.00% and is based on 15 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

81.92%

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
Leonie Kraft 9/10 2264 days 100%
Levi 6/10 2309 days 77%
Sophie NIemann 10/10 2315 days 96%
Armand Poulain 8/10 3370 days 7%
Shannon Taylor 8/10 3463 days 0%
Martin & Christian 8/10 3744 days 25%
Susie Christensen 7/10 3744 days 24%
Fleur & Nils 9/10 3751 days 28%
Graham Swinyard 8/10 3752 days 25%
Cory Wornell 10/10 4084 days 28%
Emma Edis-Bates 5/10 4111 days 20%
David McCallon 9/10 4463 days 28%
richelle 7/10 4543 days 24%
Vicki Cashmore 9/10 4562 days 28%
Gabriele Achilles 7/10 5911 days 24%

Adjustments

No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Centre of New Zealand does not meet the criteria for any of these adjustments to apply.

Final Ranking Score

82%

The final ranking score once 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.