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 Rangitata Rafts Ltd.
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
Rankers owner
Rangitata Rafts Ltd
Valid Reviews
78 Valid Reviews
The Rangitata Rafts Ltd experience has a total of 78 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 78 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 55 |
|
71% |
| 9/10 | 14 |
|
18% |
| 8/10 | 7 |
|
9% |
| 7/10 | 1 |
|
1% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
94.87% Average
The raw data average (mean) for all the Rangitata Rafts Ltd valid reviews is 94.87% and is based on 78 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
33 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 78 valid reviews, the experience has 33 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 33 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 17 |
|
52% |
| 9/10 | 10 |
|
30% |
| 8/10 | 5 |
|
15% |
| 7/10 | 1 |
|
3% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
93.03% Average
The raw data average (mean) for all the Rangitata Rafts Ltd face-to-face reviews is 93.03% and is based on 33 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
94.62%
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 |
|---|---|---|---|---|---|
| Liam Elferins | 9/10 | 752 days |  |
28.37 | 100% |
| Marjolen Klomphaler | 10/10 | 775 days | |
25.47 | 90% |
| Sabrina Kulikar | 10/10 | 812 days | |
21.23 | 74% |
| sanneke tangel | 8/10 | 1169 days | |
5.88 | 19% |
| Maria Schober | 8/10 | 1470 days | |
5.38 | 17% |
| kevin george | 10/10 | 1939 days | 3.84 | 12% | |
| Stu Murray | 10/10 | 2184 days | |
4.21 | 13% |
| Fabian and Teresa | 10/10 | 2205 days | |
4.18 | 13% |
| John | 9/10 | 2267 days | |
4.07 | 13% |
| roos wubben | 9/10 | 2290 days | |
4.04 | 12% |
| wtyson | 1/10 | 2365 days | 2.77 | 8% | |
| Chris Marsh | 10/10 | 2575 days | |
3.57 | 11% |
| budge69 | 10/10 | 2578 days | 2.97 | 9% | |
| CHOW | 10/10 | 2701 days | 2.8 | 8% | |
| Marinathebraveone | 10/10 | 2915 days | 2.51 | 7% | |
| louisemartensson | 10/10 | 2915 days | 2.51 | 7% | |
| Becky Foley | 9/10 | 2929 days | |
2.99 | 9% |
| NicoleM | 8/10 | 2943 days | 2.47 | 7% | |
| Richie | 9/10 | 2943 days | 2.47 | 7% | |
| chels144 | 10/10 | 2974 days | 2.43 | 7% | |
| mandiholtz | 10/10 | 3005 days | 2.38 | 6% | |
| Shanel | 10/10 | 3035 days | 2.34 | 6% | |
| LouiseVicente | 10/10 | 3219 days | 2.09 | 5% | |
| SteveMcPeace | 10/10 | 3249 days | 2.05 | 5% | |
| Nicola | 10/10 | 3280 days | 2.01 | 5% | |
| Frances Hay | 10/10 | 3307 days | |
2.36 | 6% |
| David Roque | 10/10 | 3308 days | 1.97 | 5% | |
| Claudia Wälti | 10/10 | 3308 days | 1.97 | 5% | |
| grobster | 10/10 | 3308 days | 1.97 | 5% | |
| shannahan | 9/10 | 3339 days | 1.93 | 5% | |
| ChristinaO | 9/10 | 3339 days | 1.93 | 5% | |
| marianne petersen | 10/10 | 3339 days | 1.93 | 5% | |
| Becca | 10/10 | 3339 days | 1.93 | 5% | |
| Harry Gates | 10/10 | 3339 days | 1.93 | 5% | |
| Shooter | 10/10 | 3339 days | 1.93 | 5% | |
| godin | 10/10 | 3370 days | 1.88 | 5% | |
| Gareth Jones | 10/10 | 3370 days | 1.88 | 5% | |
| Gina Swindells | 10/10 | 3381 days | |
2.24 | 6% |
| Ric Lee | 10/10 | 3431 days | 1.8 | 4% | |
| Louise Humphreys | 10/10 | 3431 days | 1.8 | 4% | |
| racheldonn | 10/10 | 3431 days | 1.8 | 4% | |
| Sharon Heimeier | 9/10 | 3461 days | 1.76 | 4% | |
| AoamC | 9/10 | 3616 days | |
1.86 | 5% |
| Nicola | 10/10 | 3617 days | |
1.85 | 5% |
| Paul | 10/10 | 3617 days | |
1.85 | 5% |
| Neal | 10/10 | 3617 days | |
1.85 | 5% |
| Helen Josten | 10/10 | 3624 days | 1.54 | 3% | |
| Birgitte Weitemeyer | 10/10 | 3629 days | 1.53 | 3% | |
| Greg18 | 8/10 | 3645 days | 1.51 | 3% | |
| RobC1 | 9/10 | 3649 days | |
1.8 | 4% |
| RichardB1 | 10/10 | 3649 days | |
1.8 | 4% |
| JoT | 10/10 | 3649 days | |
1.8 | 4% |
| RobH | 10/10 | 3650 days | |
1.8 | 4% |
| Steve Sayers | 10/10 | 3651 days | 1.5 | 3% | |
| mash | 10/10 | 3660 days | 1.49 | 3% | |
| renanf | 10/10 | 3665 days | 1.48 | 3% | |
| Bronte Koop | 10/10 | 3670 days | 1.47 | 3% | |
| Kasumi | 10/10 | 3673 days | 1.47 | 3% | |
| De Kievit | 8/10 | 3682 days | |
1.75 | 4% |
| Paul Moisy | 10/10 | 3684 days | 1.45 | 3% | |
| Andrew | 9/10 | 3690 days | |
1.73 | 4% |
| BenD | 7/10 | 3704 days | |
1.71 | 4% |
| Julia Klingberg | 10/10 | 3718 days | 1.41 | 3% | |
| Chris Hertz | 10/10 | 3732 days | 1.39 | 3% | |
| jon c | 10/10 | 3735 days | 1.38 | 3% | |
| Sue Stevens | 10/10 | 3760 days | 1.35 | 3% | |
| Dal Piggott | 10/10 | 3779 days | 1.32 | 3% | |
| Sam Prior | 10/10 | 3829 days | |
1.51 | 3% |
| purplekat99 | 10/10 | 3979 days | 1.05 | 2% | |
| Renske Tehurne | 9/10 | 4005 days | |
1.22 | 2% |
| Janne | 10/10 | 4017 days | 1.0 | 2% | |
| John | 8/10 | 4028 days | |
1.18 | 2% |
| Matt Walker | 10/10 | 4028 days | |
1.18 | 2% |
| Sandra Gustafson | 10/10 | 4056 days | |
1.13 | 2% |
| Brynn | 9/10 | 4300 days | |
0.73 | 1% |
| David | 9/10 | 4350 days | |
0.65 | 0% |
| NeilYeoman | 10/10 | 4351 days | |
0.65 | 0% |
| Deirdre | 8/10 | 4392 days | |
0.58 | 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 Rangitata Rafts Ltd 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 Rangitata Rafts Ltd 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 Rangitata Rafts Ltd 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
87%
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.