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 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
88.29%
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 | 719 days | 100% |
| Matt Olejniczak | 9/10 | 780 days | 92% |
| Julia | 9/10 | 870 days | 80% |
| Darrell | 8/10 | 1145 days | 44% |
| Alec | 8/10 | 1204 days | 37% |
| Ralph Gleek | 10/10 | 1538 days | 14% |
| Shar-ron & Jim | 10/10 | 1691 days | 8% |
| Kiwi | 3/10 | 2180 days | 3% |
| Liz | 3/10 | 2210 days | 3% |
| Clare & Gerry | 10/10 | 2241 days | 6% |
| Kiwi | 9/10 | 2300 days | 6% |
| Jacqui | 10/10 | 2331 days | 6% |
| helen reeve | 10/10 | 2392 days | 5% |
| Bex & Jake | 8/10 | 2545 days | 5% |
| Sree Polavarapu | 10/10 | 2606 days | 5% |
| Tammy Schein | 9/10 | 2726 days | 4% |
| Chanelle Weller | 6/10 | 2929 days | 3% |
| Scott McGee | 1/10 | 2999 days | 1% |
| Shay | 9/10 | 3214 days | 3% |
| Jean marc Daubenfeld | 9/10 | 3392 days | 3% |
| Matthew Hallowell | 7/10 | 3393 days | 2% |
| Caro G | 9/10 | 3462 days | 2% |
| Robert | 9/10 | 3726 days | 2% |
| Manuela Opprecht | 10/10 | 3741 days | 2% |
| Fay Young | 5/10 | 3761 days | 1% |
| Leah Stewart | 9/10 | 3766 days | 2% |
| G & W | 5/10 | 4034 days | 1% |
| Sybille Willenbrock | 10/10 | 4089 days | 1% |
| Wouter Bosch | 9/10 | 4108 days | 1% |
| Aude Moulin | 9/10 | 4108 days | 1% |
| The Germans from Australiia | 9/10 | 4126 days | 1% |
| Elizabeth | 7/10 | 4128 days | 1% |
| Roy Driehuis | 7/10 | 4128 days | 1% |
| andrewmh | 8/10 | 4157 days | 1% |
| Henrik Joshua | 9/10 | 4187 days | 0% |
| Kerri | 8/10 | 4248 days | 0% |
| Elise Robson | 6/10 | 4340 days | 0% |
| Claire | 7/10 | 4432 days | 1% |
| Fernando Martin | 8/10 | 4439 days | 1% |
| Michael Nolan | 6/10 | 4460 days | 1% |
| Cabby | 4/10 | 4460 days | 1% |
| Roeland Driessen | 8/10 | 4491 days | 1% |
| William Notcutt | 3/10 | 4491 days | 1% |
| Fred and Carin | 6/10 | 4511 days | 1% |
| nztintin | 9/10 | 4797 days | 1% |
| Matt Kelley | 8/10 | 4806 days | 1% |
| Eric Lombaard | 8/10 | 4809 days | 1% |
| Beat Kindler | 10/10 | 4809 days | 1% |
| Jim Addicott | 10/10 | 4810 days | 1% |
| Jurg Pfaendler | 8/10 | 4814 days | 1% |
| Paul & Michelle Harmer | 7/10 | 4819 days | 1% |
| Heike | 10/10 | 4821 days | 1% |
| Des & Ann Bidwell | 10/10 | 4821 days | 1% |
| Barrie Corless | 5/10 | 4825 days | 1% |
| Mike & April Prince | 7/10 | 4839 days | 1% |
| John Jacobs | 9/10 | 4854 days | 1% |
| CMJ | 9/10 | 4857 days | 1% |
| Les and Carole Savins | 8/10 | 4894 days | 1% |
| Sebastian | 8/10 | 4897 days | 1% |
| Steve | 9/10 | 4902 days | 1% |
| redmatthew16 | 9/10 | 5102 days | 1% |
| Rob O'Neill | 10/10 | 5134 days | 1% |
| Peter | 4/10 | 5147 days | 1% |
| Richard Dudfield | 9/10 | 5149 days | 1% |
| Wayne Forrow | 8/10 | 5153 days | 1% |
| Fasto Maserati | 10/10 | 5153 days | 1% |
| Bill Cutler | 9/10 | 5153 days | 1% |
| Marilyn Buboltz | 9/10 | 5155 days | 1% |
| Rob Hitsert | 9/10 | 5155 days | 1% |
| Gerhard | 9/10 | 5164 days | 1% |
| Jennifer Sunderland | 6/10 | 5165 days | 1% |
| Alice | 9/10 | 5167 days | 1% |
| Bucher Weruer | 8/10 | 5167 days | 1% |
| Marcus | 9/10 | 5168 days | 1% |
| Derek McLoughlin | 9/10 | 5170 days | 1% |
| Flueckiger | 10/10 | 5172 days | 1% |
| Manfred & Gabi | 9/10 | 5174 days | 1% |
| Conny | 10/10 | 5462 days | 1% |
| Peter Aerborg | 9/10 | 5464 days | 1% |
| Quin | 6/10 | 5497 days | 1% |
| Polil | 8/10 | 5514 days | 1% |
| Jvjm Family | 8/10 | 5516 days | 1% |
| Ian Watson | 10/10 | 5529 days | 1% |
| Sue | 9/10 | 5541 days | 1% |
| Harmann Volker | 9/10 | 5550 days | 1% |
| R Gilge | 8/10 | 5552 days | 1% |
| Iris W | 8/10 | 5562 days | 1% |
| Samantha Piekuta | 9/10 | 5565 days | 1% |
| Omar Frenchy | 8/10 | 5565 days | 1% |
| Buss | 8/10 | 5569 days | 1% |
| Jennifer Templeton | 4/10 | 5573 days | 1% |
| middendorp | 9/10 | 5602 days | 1% |
| marylus | 8/10 | 5602 days | 1% |
| Seiler | 8/10 | 5620 days | 1% |
| Flavia Mionelli | 10/10 | 5630 days | 1% |
| Peattie | 9/10 | 5630 days | 1% |
| Roma | 7/10 | 5641 days | 1% |
| canadianislandgirl | 7/10 | 5648 days | 1% |
| hellami | 9/10 | 5648 days | 1% |
| bogaard | 8/10 | 5744 days | 1% |
| Clem | 7/10 | 5745 days | 1% |
| Kazmeister | 10/10 | 5801 days | 1% |
| annysp | 9/10 | 5862 days | 1% |
| JimmyK | 8/10 | 5880 days | 1% |
| Edcan | 7/10 | 5880 days | 1% |
| Johannes & Jopke Fokkema | 8/10 | 5882 days | 1% |
| LucyPoland | 8/10 | 5883 days | 1% |
| NikkiB1 | 3/10 | 5897 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
-3.38% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 68 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 | -3.33% |
| 198 | -3.35% |
| 199 | -3.36% |
| 200 | -3.38% |
| 201 | -3.40% |
| 202 | -3.41% |
| 203 | -3.43% |
| … | … |
Balancing Adjustment
1.84% 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.