Kia ora, 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 The Rock Adventure Cruise.
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.
The Rock Adventure Cruise
Valid Reviews
66 Valid Reviews
The The Rock Adventure Cruise experience has a total of 67 reviews. There are 66 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 66 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 50 |
|
76% |
| 9/10 | 10 |
|
15% |
| 8/10 | 2 |
|
3% |
| 7/10 | 0 |
|
0% |
| 6/10 | 1 |
|
2% |
| 5/10 | 1 |
|
2% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
2% |
| 2/10 | 1 |
|
2% |
| 1/10 | 0 |
|
0% |
94.24% Average
The raw data average (mean) for all the The Rock Adventure Cruise valid reviews is 94.24% and is based on 66 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
16 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 66 valid reviews, the experience has 16 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 16 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 10 |
|
63% |
| 9/10 | 5 |
|
31% |
| 8/10 | 1 |
|
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% |
95.63% Average
The raw data average (mean) for all the The Rock Adventure Cruise face-to-face reviews is 95.63% and is based on 16 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
97.07%
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 |
|---|---|---|---|
| Faith | 10/10 | 1126 days | 100% |
| MARK CURPHEY | 9/10 | 3023 days | 5% |
| Geraldine Sharrock | 10/10 | 3297 days | 4% |
| Jess | 10/10 | 3334 days | 4% |
| Amanda Cook | 10/10 | 3682 days | 3% |
| Rita Hochstiasser | 9/10 | 4014 days | 0% |
| ThereseShore | 8/10 | 4382 days | 2% |
| Christina Rodewald | 9/10 | 4387 days | 1% |
| Darren Abbott | 9/10 | 4437 days | 1% |
| Bethelanna | 10/10 | 4535 days | 2% |
| Lisa Ruhfus | 10/10 | 4728 days | 1% |
| graemec | 10/10 | 4748 days | 2% |
| Mike1952 | 10/10 | 4748 days | 2% |
| Laurent_F | 10/10 | 4871 days | 2% |
| Thierry Meylan | 10/10 | 5061 days | 1% |
| Johanna & Mark | 8/10 | 5067 days | 1% |
| frednovella | 10/10 | 5085 days | 2% |
| Sarah Pattis | 10/10 | 5100 days | 1% |
| vbleminz | 10/10 | 5175 days | 2% |
| English_Mark | 10/10 | 5175 days | 2% |
| jblack | 10/10 | 5236 days | 2% |
| Eva | 10/10 | 5476 days | 1% |
| flozi | 10/10 | 5478 days | 2% |
| Moritz Scheuer | 10/10 | 5509 days | 2% |
| simone_m | 10/10 | 5509 days | 2% |
| Angela Stringer | 10/10 | 5509 days | 2% |
| lorna haigh | 10/10 | 5509 days | 2% |
| Clem | 10/10 | 5509 days | 2% |
| GoodTimes | 9/10 | 5540 days | 2% |
| Love2Travel146 | 10/10 | 5540 days | 2% |
| Stefanie E | 10/10 | 5547 days | 1% |
| Mareike G | 10/10 | 5552 days | 1% |
| debbiehinman | 10/10 | 5570 days | 2% |
| Mark Coetzee | 10/10 | 5570 days | 2% |
| zenzen | 10/10 | 5570 days | 2% |
| Tiare Boyes | 10/10 | 5570 days | 2% |
| sianac | 10/10 | 5570 days | 2% |
| mattp83 | 10/10 | 5601 days | 2% |
| Hannah | 10/10 | 5601 days | 2% |
| Alex D'Souza | 2/10 | 5601 days | 0% |
| Liliana Tello | 10/10 | 5601 days | 2% |
| duncan spokes | 10/10 | 5601 days | 2% |
| Jamie Hicks | 10/10 | 5631 days | 2% |
| Eric Guthey | 10/10 | 5631 days | 2% |
| Jackie Anderson | 10/10 | 5631 days | 2% |
| Peter88 | 10/10 | 5784 days | 2% |
| Kilian Lankes | 9/10 | 5784 days | 2% |
| Laura Mueller | 10/10 | 5815 days | 2% |
| straw64 | 5/10 | 5843 days | 1% |
| RentonDarcy | 6/10 | 5843 days | 1% |
| Tia Lanzetta | 9/10 | 5843 days | 2% |
| landlord | 3/10 | 5871 days | 0% |
| Jess Hickman | 10/10 | 5874 days | 2% |
| Wayne Thomas | 10/10 | 5874 days | 2% |
| Ashleigh Thomas | 10/10 | 5874 days | 2% |
| jbdetwiler | 10/10 | 5874 days | 2% |
| GEM | 10/10 | 5874 days | 2% |
| Dale Baker | 10/10 | 5874 days | 2% |
| amyamy05 | 10/10 | 5935 days | 2% |
| Christopher East | 9/10 | 5966 days | 2% |
| Helen | 9/10 | 6134 days | 1% |
| John Ryan | 10/10 | 6161 days | 1% |
| max w | 10/10 | 6209 days | 2% |
| Karyn | 10/10 | 6223 days | 2% |
| Meike | 10/10 | 6547 days | 1% |
| rwales | 9/10 | 6574 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 The Rock Adventure Cruise experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.14% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 days. However the The Rock Adventure Cruise 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 The Rock Adventure Cruise experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.08% |
| 198 | -4.10% |
| 199 | -4.12% |
| 200 | -4.14% |
| 201 | -4.16% |
| 202 | -4.18% |
| 203 | -4.20% |
| … | … |
Balancing Adjustment
0.64% 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 customers 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
94%
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.