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 Omaka Aviation Heritage Centre.

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

Omaka Aviation Heritage Centre

Valid Reviews

23 Valid Reviews

The Omaka Aviation Heritage Centre experience has a total of 23 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 23 valid reviews:

Rating Count Percentage
10/10 11
48%
9/10 6
26%
8/10 5
22%
7/10 1
4%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

91.74% Average

The raw data average (mean) for all the Omaka Aviation Heritage Centre valid reviews is 91.74% and is based on 23 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

18 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 23 valid reviews, the experience has 18 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 18 face-to-face reviews:

Rating Count Percentage
10/10 9
50%
9/10 5
28%
8/10 3
17%
7/10 1
6%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

92.22% Average

The raw data average (mean) for all the Omaka Aviation Heritage Centre face-to-face reviews is 92.22% and is based on 18 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

92.46%

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
P and W Gene 10/10 2005 days 100%
Heidi et Mat 8/10 2308 days 77%
Christine Rodger 9/10 2411 days 75%
Sofie Jebsen 10/10 2674 days 58%
Tobias 9/10 2674 days 58%
angela neilsen 10/10 2958 days 40%
Elsa Bygrave 10/10 3051 days 34%
Ray Bygrave 10/10 3051 days 34%
FlyingKiwiGirl 10/10 3170 days 27%
Gordon and Jenny Subritzky 10/10 3432 days 10%
Laurits and Bettina 9/10 3512 days 5%
TheClan 8/10 3596 days 0%
Norman UK 10/10 3772 days 29%
Roy Barton 10/10 3777 days 29%
Shavill 8/10 3780 days 27%
kiwifrenchy 9/10 3809 days 29%
Chris & Jen Spencer 7/10 3820 days 26%
Bob & Lynda Miller 10/10 4140 days 29%
E C Frans 8/10 4144 days 27%
Tim 9/10 4518 days 29%
Ian S 10/10 4895 days 29%
Melanie 8/10 4926 days 27%
Loren 9/10 4950 days 29%

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 Omaka Aviation Heritage Centre experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.01% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 124 days. However the Omaka Aviation Heritage Centre 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 Omaka Aviation Heritage Centre experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -1.98%
198 -1.99%
199 -2.00%
200 -2.01%
201 -2.02%
202 -2.03%
203 -2.04%

Final Ranking Score

90%

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.