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 Tasman Sky Adventures.

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

Tasman Sky Adventures

Valid Reviews

33 Valid Reviews

The Tasman Sky Adventures experience has a total of 33 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 33 valid reviews:

Rating Count Percentage
10/10 22
67%
9/10 10
30%
8/10 1
3%
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%

96.36% Average

The raw data average (mean) for all the Tasman Sky Adventures valid reviews is 96.36% and is based on 33 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

23 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 33 valid reviews, the experience has 23 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 23 face-to-face reviews:

Rating Count Percentage
10/10 12
52%
9/10 10
43%
8/10 1
4%
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%

94.78% Average

The raw data average (mean) for all the Tasman Sky Adventures face-to-face reviews is 94.78% and is based on 23 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

96.23%

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
Greg Little 10/10 1312 days true 5.64 100%
Grada Anderson 10/10 2753 days true 3.27 50%
Chance McGuire 10/10 3118 days 2.23 28%
kfortin 10/10 3118 days 2.23 28%
Ben Miklozek 9/10 3118 days true 2.67 37%
Marianne Lovdal 9/10 3118 days true 2.67 37%
TonyKing 10/10 3118 days 2.23 28%
Sandie Chan 10/10 3164 days true 2.6 36%
guichard 10/10 3169 days true 2.59 36%
gereldineb 10/10 3174 days true 2.58 36%
joramv 10/10 3184 days true 2.57 35%
hughys 9/10 3187 days true 2.56 35%
Sena 9/10 3190 days true 2.56 35%
MV Vroenhoven 9/10 3195 days true 2.55 35%
Jess Pasos 9/10 3199 days true 2.54 35%
ruthh 9/10 3202 days true 2.54 35%
Greg18 10/10 3424 days 1.81 19%
EllenorO 10/10 3424 days true 2.17 27%
erikholland 10/10 3424 days 1.81 19%
David 9/10 3472 days true 2.09 25%
niall stephenson 10/10 3487 days 1.72 17%
Rose 10/10 3487 days true 2.07 25%
saskia Seidel 10/10 3517 days 1.68 17%
Mairead 9/10 3639 days true 1.82 19%
Aideen 8/10 3639 days true 1.82 19%
Hayley Chapman 10/10 3781 days true 1.58 15%
Charlie Ratcliff 10/10 3781 days true 1.58 15%
Michael White 10/10 3786 days true 1.58 14%
Erin White 9/10 3787 days true 1.57 14%
stephen hailes 10/10 3794 days 1.3 9%
smith1 10/10 3814 days 1.28 8%
seasider353 10/10 3819 days 1.27 8%
Cliff 10/10 4200 days true 0.9 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 Tasman Sky Adventures 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 Tasman Sky Adventures 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 Tasman Sky Adventures 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

89%

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.