G'day, 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 Greymouth Seaside TOP 10 Holiday Park.
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.
Greymouth Seaside TOP 10 Holiday Park
Valid Reviews
108 Valid Reviews
The Greymouth Seaside TOP 10 Holiday Park experience has a total of 110 reviews. There are 108 valid reviews that are included when calculating the ranking score and 2 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 108 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 20 |
|
19% |
| 9/10 | 35 |
|
32% |
| 8/10 | 26 |
|
24% |
| 7/10 | 10 |
|
9% |
| 6/10 | 6 |
|
6% |
| 5/10 | 3 |
|
3% |
| 4/10 | 3 |
|
3% |
| 3/10 | 4 |
|
4% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
80.46% Average
The raw data average (mean) for all the Greymouth Seaside TOP 10 Holiday Park valid reviews is 80.46% and is based on 108 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
67 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 108 valid reviews, the experience has 67 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 67 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 11 |
|
16% |
| 9/10 | 20 |
|
30% |
| 8/10 | 20 |
|
30% |
| 7/10 | 8 |
|
12% |
| 6/10 | 3 |
|
4% |
| 5/10 | 2 |
|
3% |
| 4/10 | 2 |
|
3% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
81.34% Average
The raw data average (mean) for all the Greymouth Seaside TOP 10 Holiday Park face-to-face reviews is 81.34% and is based on 67 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
88.62%
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 | Relative Weight |
|---|---|---|---|
| Julie | 10/10 | 551 days | 100% |
| Matt Olejniczak | 9/10 | 612 days | 94% |
| Julia | 9/10 | 702 days | 86% |
| Darrell | 8/10 | 977 days | 55% |
| Alec | 8/10 | 1036 days | 48% |
| Ralph Gleek | 10/10 | 1370 days | 20% |
| Shar-ron & Jim | 10/10 | 1523 days | 12% |
| Kiwi | 3/10 | 2012 days | 3% |
| Liz | 3/10 | 2042 days | 3% |
| Clare & Gerry | 10/10 | 2073 days | 5% |
| Kiwi | 9/10 | 2132 days | 5% |
| Jacqui | 10/10 | 2163 days | 5% |
| helen reeve | 10/10 | 2224 days | 5% |
| Bex & Jake | 8/10 | 2377 days | 5% |
| Sree Polavarapu | 10/10 | 2438 days | 5% |
| Tammy Schein | 9/10 | 2558 days | 4% |
| Chanelle Weller | 6/10 | 2761 days | 3% |
| Scott McGee | 1/10 | 2831 days | 1% |
| Shay | 9/10 | 3046 days | 3% |
| Jean marc Daubenfeld | 9/10 | 3224 days | 3% |
| Matthew Hallowell | 7/10 | 3225 days | 2% |
| Caro G | 9/10 | 3294 days | 2% |
| Robert | 9/10 | 3558 days | 2% |
| Manuela Opprecht | 10/10 | 3573 days | 2% |
| Fay Young | 5/10 | 3593 days | 1% |
| Leah Stewart | 9/10 | 3598 days | 2% |
| G & W | 5/10 | 3866 days | 1% |
| Sybille Willenbrock | 10/10 | 3921 days | 1% |
| Wouter Bosch | 9/10 | 3940 days | 1% |
| Aude Moulin | 9/10 | 3940 days | 1% |
| The Germans from Australiia | 9/10 | 3958 days | 1% |
| Elizabeth | 7/10 | 3960 days | 1% |
| Roy Driehuis | 7/10 | 3960 days | 1% |
| andrewmh | 8/10 | 3989 days | 1% |
| Henrik Joshua | 9/10 | 4019 days | 1% |
| Kerri | 8/10 | 4080 days | 1% |
| Elise Robson | 6/10 | 4172 days | 0% |
| Claire | 7/10 | 4264 days | 0% |
| Fernando Martin | 8/10 | 4271 days | 0% |
| Michael Nolan | 6/10 | 4292 days | 0% |
| Cabby | 4/10 | 4292 days | 0% |
| Roeland Driessen | 8/10 | 4323 days | 0% |
| William Notcutt | 3/10 | 4323 days | 0% |
| Fred and Carin | 6/10 | 4343 days | 0% |
| nztintin | 9/10 | 4629 days | 1% |
| Matt Kelley | 8/10 | 4638 days | 1% |
| Eric Lombaard | 8/10 | 4641 days | 1% |
| Beat Kindler | 10/10 | 4641 days | 1% |
| Jim Addicott | 10/10 | 4642 days | 1% |
| Jurg Pfaendler | 8/10 | 4646 days | 1% |
| Paul & Michelle Harmer | 7/10 | 4651 days | 1% |
| Heike | 10/10 | 4653 days | 1% |
| Des & Ann Bidwell | 10/10 | 4653 days | 1% |
| Barrie Corless | 5/10 | 4657 days | 1% |
| Mike & April Prince | 7/10 | 4671 days | 1% |
| John Jacobs | 9/10 | 4686 days | 1% |
| CMJ | 9/10 | 4689 days | 1% |
| Les and Carole Savins | 8/10 | 4726 days | 1% |
| Sebastian | 8/10 | 4729 days | 1% |
| Steve | 9/10 | 4734 days | 1% |
| redmatthew16 | 9/10 | 4934 days | 1% |
| Rob O'Neill | 10/10 | 4966 days | 1% |
| Peter | 4/10 | 4979 days | 1% |
| Richard Dudfield | 9/10 | 4981 days | 1% |
| Wayne Forrow | 8/10 | 4985 days | 1% |
| Fasto Maserati | 10/10 | 4985 days | 1% |
| Bill Cutler | 9/10 | 4985 days | 1% |
| Marilyn Buboltz | 9/10 | 4987 days | 1% |
| Rob Hitsert | 9/10 | 4987 days | 1% |
| Gerhard | 9/10 | 4996 days | 1% |
| Jennifer Sunderland | 6/10 | 4997 days | 1% |
| Alice | 9/10 | 4999 days | 1% |
| Bucher Weruer | 8/10 | 4999 days | 1% |
| Marcus | 9/10 | 5000 days | 1% |
| Derek McLoughlin | 9/10 | 5002 days | 1% |
| Flueckiger | 10/10 | 5004 days | 1% |
| Manfred & Gabi | 9/10 | 5006 days | 1% |
| Conny | 10/10 | 5294 days | 1% |
| Peter Aerborg | 9/10 | 5296 days | 1% |
| Quin | 6/10 | 5329 days | 1% |
| Polil | 8/10 | 5346 days | 1% |
| Jvjm Family | 8/10 | 5348 days | 1% |
| Ian Watson | 10/10 | 5361 days | 1% |
| Sue | 9/10 | 5373 days | 1% |
| Harmann Volker | 9/10 | 5382 days | 1% |
| R Gilge | 8/10 | 5384 days | 1% |
| Iris W | 8/10 | 5394 days | 1% |
| Samantha Piekuta | 9/10 | 5397 days | 1% |
| Omar Frenchy | 8/10 | 5397 days | 1% |
| Buss | 8/10 | 5401 days | 1% |
| Jennifer Templeton | 4/10 | 5405 days | 1% |
| middendorp | 9/10 | 5434 days | 1% |
| marylus | 8/10 | 5434 days | 1% |
| Seiler | 8/10 | 5452 days | 1% |
| Flavia Mionelli | 10/10 | 5462 days | 1% |
| Peattie | 9/10 | 5462 days | 1% |
| Roma | 7/10 | 5473 days | 1% |
| canadianislandgirl | 7/10 | 5480 days | 1% |
| hellami | 9/10 | 5480 days | 1% |
| bogaard | 8/10 | 5576 days | 1% |
| Clem | 7/10 | 5577 days | 1% |
| Kazmeister | 10/10 | 5633 days | 1% |
| annysp | 9/10 | 5694 days | 1% |
| JimmyK | 8/10 | 5712 days | 1% |
| Edcan | 7/10 | 5712 days | 1% |
| Johannes & Jopke Fokkema | 8/10 | 5714 days | 1% |
| LucyPoland | 8/10 | 5715 days | 1% |
| NikkiB1 | 3/10 | 5729 days | 1% |
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 Greymouth Seaside TOP 10 Holiday Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.88% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 days. However the Greymouth Seaside TOP 10 Holiday Park 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 Greymouth Seaside TOP 10 Holiday Park experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.82% |
| 198 | -3.84% |
| 199 | -3.86% |
| 200 | -3.88% |
| 201 | -3.90% |
| 202 | -3.92% |
| 203 | -3.94% |
| … | … |
Balancing Adjustment
1.87% 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
87%
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.