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 Mountain Helicopters.
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.
Mountain Helicopters
Valid Reviews
62 Valid Reviews
The Mountain Helicopters experience has a total of 66 reviews. There are 62 valid reviews that are included when calculating the ranking score and 4 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 62 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 51 |
|
82% |
| 9/10 | 7 |
|
11% |
| 8/10 | 3 |
|
5% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 1 |
|
2% |
| 1/10 | 0 |
|
0% |
96.61% Average
The raw data average (mean) for all the Mountain Helicopters valid reviews is 96.61% and is based on 62 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
19 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 62 valid reviews, the experience has 19 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 19 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 10 |
|
53% |
| 9/10 | 6 |
|
32% |
| 8/10 | 3 |
|
16% |
| 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% |
93.68% Average
The raw data average (mean) for all the Mountain Helicopters face-to-face reviews is 93.68% and is based on 19 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
96.98%
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 |
|---|---|---|---|
| Gary Nicholls | 10/10 | 656 days | 100% |
| Felicity Buckham | 10/10 | 809 days | 50% |
| Tina Laughton | 2/10 | 1083 days | 10% |
| Pretorius Family | 10/10 | 1113 days | 14% |
| Bruce Phillips | 10/10 | 1386 days | 12% |
| Philipp Kulik | 10/10 | 1386 days | 12% |
| Lena | 9/10 | 1692 days | 9% |
| Nate Smith | 10/10 | 1751 days | 10% |
| John Jones | 10/10 | 1935 days | 9% |
| Natasha Walker | 10/10 | 2056 days | 9% |
| Richard Thompson | 10/10 | 2087 days | 8% |
| Tom Nicol | 10/10 | 2179 days | 8% |
| Ian Watson | 10/10 | 2391 days | 7% |
| Dorota Kimber | 10/10 | 2421 days | 7% |
| Luke Roberts | 10/10 | 2605 days | 6% |
| Glyn and Karen Farlow | 10/10 | 2682 days | 5% |
| Maria den Otter | 10/10 | 2725 days | 5% |
| Beverley Ceci | 10/10 | 2725 days | 5% |
| Henry Papuni | 10/10 | 2725 days | 5% |
| B D | 10/10 | 2725 days | 5% |
| Tracey Harrison | 10/10 | 2756 days | 5% |
| Zoe Heij | 10/10 | 2970 days | 4% |
| Franzyy | 10/10 | 3000 days | 3% |
| Margo Boyd | 10/10 | 3059 days | 3% |
| Dan | 10/10 | 3059 days | 3% |
| chrswdance | 10/10 | 3121 days | 3% |
| melemele | 10/10 | 3365 days | 1% |
| joeweiss | 10/10 | 3425 days | 1% |
| kiwifrenchy | 9/10 | 3425 days | 1% |
| MartinaCH | 10/10 | 3456 days | 1% |
| Marieke | 10/10 | 3487 days | 1% |
| dr_bc_gunther | 10/10 | 3609 days | 0% |
| Desma Frampton | 10/10 | 3744 days | 2% |
| Irene and Werner Keil | 10/10 | 3751 days | 2% |
| Farmer_sutra | 10/10 | 3762 days | 3% |
| Marleen Meyers | 8/10 | 3773 days | 2% |
| Dieter Uhlmann | 8/10 | 3773 days | 2% |
| cate | 10/10 | 3790 days | 3% |
| miscellanea4 | 10/10 | 3821 days | 3% |
| William_Symington | 10/10 | 3882 days | 3% |
| GaryHulst | 10/10 | 3943 days | 3% |
| jbchandler | 10/10 | 4066 days | 3% |
| Birgit Farwig | 10/10 | 4108 days | 2% |
| sirous21 | 10/10 | 4155 days | 3% |
| Keith Margan | 10/10 | 4155 days | 3% |
| Kevin and Teresa | 10/10 | 4155 days | 2% |
| middendorp | 9/10 | 4201 days | 2% |
| PatH | 9/10 | 4261 days | 2% |
| Eva Maria | 10/10 | 4308 days | 3% |
| regw | 10/10 | 4337 days | 2% |
| Andrea | 9/10 | 4381 days | 2% |
| Lilly Tillman | 10/10 | 4478 days | 3% |
| Gray | 9/10 | 4697 days | 2% |
| ashmann | 10/10 | 4790 days | 3% |
| George Jeffs | 10/10 | 4840 days | 2% |
| Ian and Judy | 9/10 | 4862 days | 2% |
| Susannah May | 10/10 | 4864 days | 3% |
| Victoria Manning | 10/10 | 4864 days | 3% |
| Wendy Lomas | 8/10 | 4870 days | 2% |
| Kathleen L | 10/10 | 4870 days | 2% |
| Paul Cripps | 10/10 | 4870 days | 2% |
| Petra | 10/10 | 5198 days | 2% |
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 Mountain Helicopters experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.18% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 117 days. However the Mountain Helicopters 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 Mountain Helicopters experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.14% |
| 198 | -2.16% |
| 199 | -2.17% |
| 200 | -2.18% |
| 201 | -2.19% |
| 202 | -2.20% |
| 203 | -2.21% |
| … | … |
Final Ranking Score
95%
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.