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
94.89%
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 | 651 days |  |
43.49 | 100% |
| Marjolen Klomphaler | 10/10 | 674 days | |
39.7 | 91% |
| Sabrina Kulikar | 10/10 | 711 days | |
34.04 | 78% |
| sanneke tangel | 8/10 | 1068 days | |
6.14 | 13% |
| Maria Schober | 8/10 | 1369 days | |
5.55 | 11% |
| kevin george | 10/10 | 1838 days | 3.98 | 8% | |
| Stu Murray | 10/10 | 2083 days | |
4.38 | 8% |
| Fabian and Teresa | 10/10 | 2104 days | |
4.34 | 8% |
| John | 9/10 | 2166 days | |
4.24 | 8% |
| roos wubben | 9/10 | 2189 days | |
4.2 | 8% |
| wtyson | 1/10 | 2264 days | 2.89 | 5% | |
| Chris Marsh | 10/10 | 2474 days | |
3.73 | 7% |
| budge69 | 10/10 | 2477 days | 3.11 | 6% | |
| CHOW | 10/10 | 2600 days | 2.94 | 5% | |
| Marinathebraveone | 10/10 | 2814 days | 2.65 | 4% | |
| louisemartensson | 10/10 | 2814 days | 2.65 | 4% | |
| Becky Foley | 9/10 | 2828 days | |
3.15 | 6% |
| NicoleM | 8/10 | 2842 days | 2.61 | 4% | |
| Richie | 9/10 | 2842 days | 2.61 | 4% | |
| chels144 | 10/10 | 2873 days | 2.56 | 4% | |
| mandiholtz | 10/10 | 2904 days | 2.52 | 4% | |
| Shanel | 10/10 | 2934 days | 2.48 | 4% | |
| LouiseVicente | 10/10 | 3118 days | 2.23 | 3% | |
| SteveMcPeace | 10/10 | 3148 days | 2.19 | 3% | |
| Nicola | 10/10 | 3179 days | 2.15 | 3% | |
| Frances Hay | 10/10 | 3206 days | |
2.53 | 4% |
| David Roque | 10/10 | 3207 days | 2.11 | 3% | |
| Claudia Wälti | 10/10 | 3207 days | 2.11 | 3% | |
| grobster | 10/10 | 3207 days | 2.11 | 3% | |
| shannahan | 9/10 | 3238 days | 2.06 | 3% | |
| ChristinaO | 9/10 | 3238 days | 2.06 | 3% | |
| marianne petersen | 10/10 | 3238 days | 2.06 | 3% | |
| Becca | 10/10 | 3238 days | 2.06 | 3% | |
| Harry Gates | 10/10 | 3238 days | 2.06 | 3% | |
| Shooter | 10/10 | 3238 days | 2.06 | 3% | |
| godin | 10/10 | 3269 days | 2.02 | 3% | |
| Gareth Jones | 10/10 | 3269 days | 2.02 | 3% | |
| Gina Swindells | 10/10 | 3280 days | |
2.41 | 4% |
| Ric Lee | 10/10 | 3330 days | 1.94 | 3% | |
| Louise Humphreys | 10/10 | 3330 days | 1.94 | 3% | |
| racheldonn | 10/10 | 3330 days | 1.94 | 3% | |
| Sharon Heimeier | 9/10 | 3360 days | 1.9 | 3% | |
| AoamC | 9/10 | 3515 days | |
2.02 | 3% |
| Nicola | 10/10 | 3516 days | |
2.02 | 3% |
| Paul | 10/10 | 3516 days | |
2.02 | 3% |
| Neal | 10/10 | 3516 days | |
2.02 | 3% |
| Helen Josten | 10/10 | 3523 days | 1.67 | 2% | |
| Birgitte Weitemeyer | 10/10 | 3528 days | 1.67 | 2% | |
| Greg18 | 8/10 | 3544 days | 1.65 | 2% | |
| RobC1 | 9/10 | 3548 days | |
1.97 | 3% |
| RichardB1 | 10/10 | 3548 days | |
1.97 | 3% |
| JoT | 10/10 | 3548 days | |
1.97 | 3% |
| RobH | 10/10 | 3549 days | |
1.97 | 3% |
| Steve Sayers | 10/10 | 3550 days | 1.64 | 2% | |
| mash | 10/10 | 3559 days | 1.62 | 2% | |
| renanf | 10/10 | 3564 days | 1.62 | 2% | |
| Bronte Koop | 10/10 | 3569 days | 1.61 | 2% | |
| Kasumi | 10/10 | 3572 days | 1.61 | 2% | |
| De Kievit | 8/10 | 3581 days | |
1.91 | 3% |
| Paul Moisy | 10/10 | 3583 days | 1.59 | 2% | |
| Andrew | 9/10 | 3589 days | |
1.9 | 3% |
| BenD | 7/10 | 3603 days | |
1.88 | 3% |
| Julia Klingberg | 10/10 | 3618 days | 1.54 | 2% | |
| Chris Hertz | 10/10 | 3631 days | 1.53 | 2% | |
| jon c | 10/10 | 3634 days | 1.52 | 2% | |
| Sue Stevens | 10/10 | 3659 days | 1.49 | 2% | |
| Dal Piggott | 10/10 | 3678 days | 1.46 | 2% | |
| Sam Prior | 10/10 | 3728 days | |
1.67 | 2% |
| purplekat99 | 10/10 | 3878 days | 1.19 | 1% | |
| Renske Tehurne | 9/10 | 3904 days | |
1.38 | 1% |
| Janne | 10/10 | 3917 days | 1.13 | 1% | |
| John | 8/10 | 3927 days | |
1.34 | 1% |
| Matt Walker | 10/10 | 3927 days | |
1.34 | 1% |
| Sandra Gustafson | 10/10 | 3955 days | |
1.3 | 1% |
| Brynn | 9/10 | 4199 days | |
0.9 | 0% |
| David | 9/10 | 4249 days | |
0.82 | 0% |
| NeilYeoman | 10/10 | 4250 days | |
0.81 | 0% |
| Deirdre | 8/10 | 4291 days | |
0.75 | 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
88%
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.