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 Air Safaris.

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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Air Safaris

Valid Reviews

52 Valid Reviews

The Air Safaris experience has a total of 52 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 52 valid reviews:

Rating Count Percentage
10/10 38
73%
9/10 11
21%
8/10 3
6%
7/10 0
0%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

96.73% Average

The raw data average (mean) for all the Air Safaris valid reviews is 96.73% and is based on 52 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

41 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 52 valid reviews, the experience has 41 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 41 face-to-face reviews:

Rating Count Percentage
10/10 29
71%
9/10 9
22%
8/10 3
7%
7/10 0
0%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

96.34% Average

The raw data average (mean) for all the Air Safaris face-to-face reviews is 96.34% and is based on 41 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

92.21%

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 Face-to-Face Weight Relative Weight
Allain Riepema 8/10 606 days true 51.47 100%
Guenter 10/10 958 days 7.97 15%
Linda Jennings 10/10 1142 days 4.94 9%
Philip Mattes 10/10 1324 days 4.69 8%
hendrik king 9/10 1842 days 3.98 7%
Reisender Sohn 10/10 1993 days 3.77 7%
David 10/10 2419 days 3.19 5%
Jurg Pfaendler 10/10 2681 days true 3.39 6%
Horst Langstein 9/10 2686 days true 3.38 6%
D R Valentine 10/10 2687 days true 3.38 6%
Dugald McCallum 10/10 2692 days true 3.37 6%
Alfred & Henrike 10/10 2718 days true 3.33 6%
Kevin Morris 10/10 3002 days true 2.87 5%
AJ van Pelt 10/10 3007 days true 2.86 5%
David Mellard 10/10 3022 days true 2.83 5%
Chris & Anne Pearson 9/10 3024 days true 2.83 5%
Monika 10/10 3028 days true 2.82 5%
Hull 9/10 3053 days true 2.78 5%
nztraveller879 9/10 3058 days 2.31 4%
Lizzie 10/10 3120 days 2.23 4%
travelbunnyadventures 10/10 3334 days 1.93 3%
Evans 10/10 3383 days true 2.24 4%
Claudia 10/10 3402 days true 2.21 4%
Jobbs 10/10 3404 days true 2.2 4%
Yona 10/10 3409 days true 2.2 4%
Phillip Rurgger 10/10 3493 days true 2.06 3%
Katrin Wennin 10/10 3496 days true 2.05 3%
Solveig Mosinski 10/10 3497 days true 2.05 3%
Primavesi 10/10 3497 days true 2.05 3%
Tinka 10/10 3515 days 1.68 3%
Andrew 10/10 3668 days true 1.77 3%
Anji Sprinks 10/10 3726 days true 1.68 3%
DC Melbourne 10/10 3732 days true 1.67 2%
Roy 9/10 3733 days true 1.66 2%
Edcan 9/10 3747 days true 1.64 2%
Joel 10/10 3749 days true 1.64 2%
David 10/10 3777 days true 1.59 2%
Hans 10/10 3777 days true 1.59 2%
Ray 10/10 3819 days 1.27 2%
Van Lent 9/10 3824 days true 1.51 2%
Anette 9/10 3848 days true 1.47 2%
Jennifer Baulch 9/10 4105 days true 1.05 1%
Anne Mainwaring 10/10 4148 days true 0.98 1%
Angela Payne 10/10 4148 days true 0.98 1%
Togl 10/10 4148 days true 0.98 1%
Stephanie 10/10 4170 days true 0.95 1%
Thomas Hartseiker 10/10 4175 days true 0.94 1%
Christie H 8/10 4213 days true 0.87 1%
Pete 10/10 4483 days true 0.43 0%
Christine 8/10 4492 days true 0.42 0%
Shirely 10/10 4494 days true 0.41 0%
Henrich 9/10 4504 days true 0.4 0%

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 Air Safaris experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-7.28% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Air Safaris 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 364 days.

The Air Safaris experience has been adjusted for 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

85%

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 info@rankers.co.nz.

Love Christchurch