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.
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
92.73%
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 | 671 days |  |
31.81 | 100% |
| Guenter | 10/10 | 1022 days | 5.84 | 18% | |
| Linda Jennings | 10/10 | 1206 days | 4.83 | 15% | |
| Philip Mattes | 10/10 | 1388 days | 4.55 | 14% | |
| hendrik king | 9/10 | 1906 days | 3.77 | 12% | |
| Reisender Sohn | 10/10 | 2058 days | 3.53 | 11% | |
| David | 10/10 | 2484 days | 2.89 | 9% | |
| Jurg Pfaendler | 10/10 | 2746 days | |
2.49 | 8% |
| Horst Langstein | 9/10 | 2751 days | |
2.48 | 8% |
| D R Valentine | 10/10 | 2752 days | |
2.48 | 8% |
| Dugald McCallum | 10/10 | 2757 days | |
2.47 | 8% |
| Alfred & Henrike | 10/10 | 2783 days | |
2.43 | 8% |
| Kevin Morris | 10/10 | 3067 days | |
2.0 | 6% |
| AJ van Pelt | 10/10 | 3072 days | |
1.99 | 6% |
| David Mellard | 10/10 | 3087 days | |
1.97 | 6% |
| Chris & Anne Pearson | 9/10 | 3089 days | |
1.96 | 6% |
| Monika | 10/10 | 3093 days | |
1.96 | 6% |
| Hull | 9/10 | 3118 days | |
1.92 | 6% |
| nztraveller879 | 9/10 | 3123 days | 1.91 | 6% | |
| Lizzie | 10/10 | 3185 days | 1.82 | 6% | |
| travelbunnyadventures | 10/10 | 3399 days | 1.49 | 5% | |
| Evans | 10/10 | 3448 days | |
1.42 | 4% |
| Claudia | 10/10 | 3467 days | |
1.39 | 4% |
| Jobbs | 10/10 | 3469 days | |
1.39 | 4% |
| Yona | 10/10 | 3474 days | |
1.38 | 4% |
| Phillip Rurgger | 10/10 | 3558 days | |
1.25 | 4% |
| Katrin Wennin | 10/10 | 3561 days | |
1.25 | 4% |
| Solveig Mosinski | 10/10 | 3562 days | |
1.25 | 4% |
| Primavesi | 10/10 | 3562 days | |
1.25 | 4% |
| Tinka | 10/10 | 3580 days | 1.22 | 4% | |
| Andrew | 10/10 | 3733 days | |
0.98 | 3% |
| Anji Sprinks | 10/10 | 3791 days | |
0.9 | 3% |
| DC Melbourne | 10/10 | 3797 days | |
0.89 | 3% |
| Roy | 9/10 | 3798 days | |
0.89 | 3% |
| Edcan | 9/10 | 3812 days | |
0.86 | 3% |
| Joel | 10/10 | 3814 days | |
0.86 | 3% |
| David | 10/10 | 3842 days | |
0.82 | 3% |
| Hans | 10/10 | 3842 days | |
0.82 | 3% |
| Ray | 10/10 | 3884 days | 0.75 | 2% | |
| Van Lent | 9/10 | 3889 days | |
0.75 | 2% |
| Anette | 9/10 | 3913 days | |
0.71 | 2% |
| Jennifer Baulch | 9/10 | 4170 days | |
0.32 | 1% |
| Anne Mainwaring | 10/10 | 4213 days | |
0.25 | 1% |
| Angela Payne | 10/10 | 4213 days | |
0.25 | 1% |
| Togl | 10/10 | 4213 days | |
0.25 | 1% |
| Stephanie | 10/10 | 4235 days | |
0.22 | 1% |
| Thomas Hartseiker | 10/10 | 4240 days | |
0.21 | 1% |
| Christie H | 8/10 | 4278 days | |
0.15 | 0% |
| Pete | 10/10 | 4548 days | |
0.0 | 0% |
| Christine | 8/10 | 4557 days | |
0.0 | 0% |
| Shirely | 10/10 | 4559 days | |
0.0 | 0% |
| Henrich | 9/10 | 4569 days | |
0.0 | 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
-3.98% 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 199 days.
The Air Safaris experience has been adjusted for 199 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 196 | -3.92% |
| 197 | -3.94% |
| 198 | -3.96% |
| 199 | -3.98% |
| 200 | -4.00% |
| 201 | -4.02% |
| 202 | -4.04% |
| … | … |
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.