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
109 Valid Reviews
The Greymouth Seaside TOP 10 Holiday Park experience has a total of 111 reviews. There are 109 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 109 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 20 |
|
18% |
| 9/10 | 35 |
|
32% |
| 8/10 | 27 |
|
25% |
| 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 109 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 109 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
85.55%
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 |
|---|---|---|---|
| Rich | 8/10 | 139 days | 100% |
| Julie | 10/10 | 993 days | 46% |
| Matt Olejniczak | 9/10 | 1054 days | 40% |
| Julia | 9/10 | 1144 days | 32% |
| Darrell | 8/10 | 1419 days | 15% |
| Alec | 8/10 | 1478 days | 12% |
| Ralph Gleek | 10/10 | 1812 days | 5% |
| Shar-ron & Jim | 10/10 | 1965 days | 5% |
| Kiwi | 3/10 | 2454 days | 2% |
| Liz | 3/10 | 2484 days | 2% |
| Clare & Gerry | 10/10 | 2515 days | 4% |
| Kiwi | 9/10 | 2574 days | 4% |
| Jacqui | 10/10 | 2605 days | 4% |
| helen reeve | 10/10 | 2666 days | 3% |
| Bex & Jake | 8/10 | 2819 days | 3% |
| Sree Polavarapu | 10/10 | 2880 days | 3% |
| Tammy Schein | 9/10 | 3000 days | 3% |
| Chanelle Weller | 6/10 | 3203 days | 2% |
| Scott McGee | 1/10 | 3273 days | 1% |
| Shay | 9/10 | 3488 days | 2% |
| Jean marc Daubenfeld | 9/10 | 3666 days | 1% |
| Matthew Hallowell | 7/10 | 3667 days | 1% |
| Caro G | 9/10 | 3736 days | 1% |
| Robert | 9/10 | 4000 days | 1% |
| Manuela Opprecht | 10/10 | 4015 days | 1% |
| Fay Young | 5/10 | 4035 days | 0% |
| Leah Stewart | 9/10 | 4040 days | 1% |
| G & W | 5/10 | 4308 days | 0% |
| Sybille Willenbrock | 10/10 | 4363 days | 0% |
| Wouter Bosch | 9/10 | 4382 days | 1% |
| Aude Moulin | 9/10 | 4382 days | 1% |
| The Germans from Australiia | 9/10 | 4400 days | 1% |
| Elizabeth | 7/10 | 4402 days | 1% |
| Roy Driehuis | 7/10 | 4402 days | 1% |
| andrewmh | 8/10 | 4431 days | 1% |
| Henrik Joshua | 9/10 | 4461 days | 1% |
| Kerri | 8/10 | 4522 days | 1% |
| Elise Robson | 6/10 | 4614 days | 1% |
| Claire | 7/10 | 4706 days | 1% |
| Fernando Martin | 8/10 | 4713 days | 1% |
| Michael Nolan | 6/10 | 4734 days | 1% |
| Cabby | 4/10 | 4734 days | 1% |
| Roeland Driessen | 8/10 | 4765 days | 1% |
| William Notcutt | 3/10 | 4765 days | 1% |
| Fred and Carin | 6/10 | 4785 days | 1% |
| nztintin | 9/10 | 5071 days | 1% |
| Matt Kelley | 8/10 | 5080 days | 1% |
| Eric Lombaard | 8/10 | 5083 days | 1% |
| Beat Kindler | 10/10 | 5083 days | 1% |
| Jim Addicott | 10/10 | 5084 days | 1% |
| Jurg Pfaendler | 8/10 | 5088 days | 1% |
| Paul & Michelle Harmer | 7/10 | 5093 days | 1% |
| Heike | 10/10 | 5095 days | 1% |
| Des & Ann Bidwell | 10/10 | 5095 days | 1% |
| Barrie Corless | 5/10 | 5099 days | 1% |
| Mike & April Prince | 7/10 | 5113 days | 1% |
| John Jacobs | 9/10 | 5128 days | 1% |
| CMJ | 9/10 | 5131 days | 1% |
| Les and Carole Savins | 8/10 | 5168 days | 1% |
| Sebastian | 8/10 | 5171 days | 1% |
| Steve | 9/10 | 5176 days | 1% |
| redmatthew16 | 9/10 | 5376 days | 1% |
| Rob O'Neill | 10/10 | 5408 days | 1% |
| Peter | 4/10 | 5421 days | 1% |
| Richard Dudfield | 9/10 | 5423 days | 1% |
| Wayne Forrow | 8/10 | 5427 days | 1% |
| Fasto Maserati | 10/10 | 5427 days | 1% |
| Bill Cutler | 9/10 | 5427 days | 1% |
| Marilyn Buboltz | 9/10 | 5429 days | 1% |
| Rob Hitsert | 9/10 | 5429 days | 1% |
| Gerhard | 9/10 | 5438 days | 1% |
| Jennifer Sunderland | 6/10 | 5439 days | 1% |
| Alice | 9/10 | 5441 days | 1% |
| Bucher Weruer | 8/10 | 5441 days | 1% |
| Marcus | 9/10 | 5442 days | 1% |
| Derek McLoughlin | 9/10 | 5444 days | 1% |
| Flueckiger | 10/10 | 5446 days | 1% |
| Manfred & Gabi | 9/10 | 5448 days | 1% |
| Conny | 10/10 | 5736 days | 1% |
| Peter Aerborg | 9/10 | 5738 days | 1% |
| Quin | 6/10 | 5771 days | 1% |
| Polil | 8/10 | 5788 days | 1% |
| Jvjm Family | 8/10 | 5790 days | 1% |
| Ian Watson | 10/10 | 5803 days | 1% |
| Sue | 9/10 | 5815 days | 1% |
| Harmann Volker | 9/10 | 5824 days | 1% |
| R Gilge | 8/10 | 5826 days | 1% |
| Iris W | 8/10 | 5836 days | 1% |
| Samantha Piekuta | 9/10 | 5839 days | 1% |
| Omar Frenchy | 8/10 | 5839 days | 1% |
| Buss | 8/10 | 5843 days | 1% |
| Jennifer Templeton | 4/10 | 5847 days | 1% |
| middendorp | 9/10 | 5876 days | 1% |
| marylus | 8/10 | 5876 days | 1% |
| Seiler | 8/10 | 5894 days | 1% |
| Flavia Mionelli | 10/10 | 5904 days | 1% |
| Peattie | 9/10 | 5904 days | 1% |
| Roma | 7/10 | 5915 days | 1% |
| canadianislandgirl | 7/10 | 5922 days | 1% |
| hellami | 9/10 | 5922 days | 1% |
| bogaard | 8/10 | 6018 days | 1% |
| Clem | 7/10 | 6019 days | 1% |
| Kazmeister | 10/10 | 6075 days | 1% |
| annysp | 9/10 | 6136 days | 1% |
| JimmyK | 8/10 | 6154 days | 1% |
| Edcan | 7/10 | 6154 days | 1% |
| Johannes & Jopke Fokkema | 8/10 | 6156 days | 1% |
| LucyPoland | 8/10 | 6157 days | 1% |
| NikkiB1 | 3/10 | 6171 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
-2.78% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 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 136 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 133 | -2.72% |
| 134 | -2.74% |
| 135 | -2.76% |
| 136 | -2.78% |
| 137 | -2.80% |
| 138 | -2.82% |
| 139 | -2.84% |
| … | … |
Balancing Adjustment
2.30% 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
85%
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.