Hey, 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 Ngāti Toa.
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.
Ngāti Toa
Valid Reviews
52 Valid Reviews
The Ngāti Toa experience has a total of 53 reviews. There are 52 valid reviews that are included when calculating the ranking score and 1 invalid review 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 | 12 |
|
23% |
| 9/10 | 10 |
|
19% |
| 8/10 | 13 |
|
25% |
| 7/10 | 11 |
|
21% |
| 6/10 | 5 |
|
10% |
| 5/10 | 1 |
|
2% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
81.92% Average
The raw data average (mean) for all the Ngāti Toa valid reviews is 81.92% 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
9 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 9 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 9 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 2 |
|
22% |
| 9/10 | 2 |
|
22% |
| 8/10 | 1 |
|
11% |
| 7/10 | 2 |
|
22% |
| 6/10 | 2 |
|
22% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
80.00% Average
The raw data average (mean) for all the Ngāti Toa face-to-face reviews is 80.00% and is based on 9 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
81.99%
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 |
|---|---|---|---|
| Rose | 9/10 | 308 days | 100% |
| Patrick | 7/10 | 370 days | 92% |
| DBennie | 8/10 | 584 days | 84% |
| Elke | 6/10 | 614 days | 72% |
| Stephanie G | 8/10 | 645 days | 80% |
| Fletch | 7/10 | 673 days | 74% |
| Renate Gabriel | 10/10 | 673 days | 79% |
| Nicolas Ribes | 9/10 | 673 days | 78% |
| Andi | 8/10 | 673 days | 77% |
| JW4070 | 10/10 | 735 days | 74% |
| Tiffndoll | 7/10 | 1069 days | 37% |
| Chichi87 | 10/10 | 1434 days | 14% |
| Katharina Müller | 5/10 | 1740 days | 4% |
| Richard & Chris, UK | 7/10 | 1800 days | 4% |
| angelika19 | 9/10 | 1892 days | 5% |
| Julianne McKie | 8/10 | 1892 days | 5% |
| Tills | 7/10 | 1892 days | 4% |
| Andy and Julia | 10/10 | 2075 days | 4% |
| Pedro | 10/10 | 2106 days | 4% |
| Brian Palmer | 7/10 | 2165 days | 4% |
| Haru Ito | 8/10 | 2484 days | 3% |
| Geoff Steele | 10/10 | 2652 days | 3% |
| Michael Smith | 7/10 | 2654 days | 3% |
| Lucie B | 8/10 | 2791 days | 3% |
| Andy Bond | 6/10 | 2874 days | 2% |
| Jos Tolboom | 9/10 | 2890 days | 3% |
| Daniel Baeyens | 9/10 | 2895 days | 3% |
| David Coyle | 10/10 | 2915 days | 3% |
| S Webb | 10/10 | 2928 days | 3% |
| Mr and Mrs B | 8/10 | 2961 days | 2% |
| Eva Rodrigues Lima | 6/10 | 3185 days | 2% |
| Jon Puttick | 10/10 | 3187 days | 2% |
| Ben Blackwell | 10/10 | 3196 days | 2% |
| Klaus Reuther | 9/10 | 3201 days | 2% |
| Debbie | 8/10 | 3230 days | 2% |
| Jo Batt | 8/10 | 3296 days | 2% |
| Megan | 10/10 | 3560 days | 1% |
| Nyla and Alan Ramsay | 9/10 | 3566 days | 1% |
| Melvin Spear | 9/10 | 3580 days | 1% |
| Wilma Senior | 7/10 | 3626 days | 1% |
| Manuela | 9/10 | 3653 days | 1% |
| bzh974 | 8/10 | 3657 days | 1% |
| Lee Whitley | 8/10 | 3840 days | 1% |
| Justin globalgauthiers.blogspot.com | 7/10 | 3901 days | 0% |
| Denisa Mecikova | 8/10 | 3906 days | 0% |
| Steffen | 7/10 | 3930 days | 0% |
| Manuel Bach | 6/10 | 3951 days | 0% |
| Frederic Gazzarin | 7/10 | 3956 days | 0% |
| Patricia Gazzarin | 9/10 | 3956 days | 0% |
| Alex Sheldon | 10/10 | 3957 days | 0% |
| Debora Grusler | 6/10 | 3961 days | 0% |
| Johannes J | 8/10 | 4113 days | 0% |
Adjustments
No Adjustment
Several adjustments to the weighted average may be added to improve relevancy and credibility. Ngāti Toa does not meet the criteria for any of these adjustments to apply.
Balancing Adjustment
2.48% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled folk are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
84%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.