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 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
85.56%
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 | 131 days | 100% |
| Julie | 10/10 | 985 days | 47% |
| Matt Olejniczak | 9/10 | 1046 days | 40% |
| Julia | 9/10 | 1136 days | 33% |
| Darrell | 8/10 | 1411 days | 15% |
| Alec | 8/10 | 1470 days | 12% |
| Ralph Gleek | 10/10 | 1804 days | 5% |
| Shar-ron & Jim | 10/10 | 1957 days | 5% |
| Kiwi | 3/10 | 2446 days | 2% |
| Liz | 3/10 | 2476 days | 2% |
| Clare & Gerry | 10/10 | 2507 days | 4% |
| Kiwi | 9/10 | 2566 days | 4% |
| Jacqui | 10/10 | 2597 days | 4% |
| helen reeve | 10/10 | 2658 days | 3% |
| Bex & Jake | 8/10 | 2811 days | 3% |
| Sree Polavarapu | 10/10 | 2872 days | 3% |
| Tammy Schein | 9/10 | 2992 days | 3% |
| Chanelle Weller | 6/10 | 3195 days | 2% |
| Scott McGee | 1/10 | 3265 days | 1% |
| Shay | 9/10 | 3480 days | 2% |
| Jean marc Daubenfeld | 9/10 | 3658 days | 1% |
| Matthew Hallowell | 7/10 | 3659 days | 1% |
| Caro G | 9/10 | 3728 days | 1% |
| Robert | 9/10 | 3992 days | 1% |
| Manuela Opprecht | 10/10 | 4007 days | 1% |
| Fay Young | 5/10 | 4027 days | 1% |
| Leah Stewart | 9/10 | 4032 days | 1% |
| G & W | 5/10 | 4300 days | 0% |
| Sybille Willenbrock | 10/10 | 4355 days | 0% |
| Wouter Bosch | 9/10 | 4374 days | 0% |
| Aude Moulin | 9/10 | 4374 days | 0% |
| The Germans from Australiia | 9/10 | 4392 days | 1% |
| Elizabeth | 7/10 | 4394 days | 1% |
| Roy Driehuis | 7/10 | 4394 days | 1% |
| andrewmh | 8/10 | 4423 days | 1% |
| Henrik Joshua | 9/10 | 4453 days | 1% |
| Kerri | 8/10 | 4514 days | 1% |
| Elise Robson | 6/10 | 4606 days | 1% |
| Claire | 7/10 | 4698 days | 1% |
| Fernando Martin | 8/10 | 4705 days | 1% |
| Michael Nolan | 6/10 | 4726 days | 1% |
| Cabby | 4/10 | 4726 days | 1% |
| Roeland Driessen | 8/10 | 4757 days | 1% |
| William Notcutt | 3/10 | 4757 days | 1% |
| Fred and Carin | 6/10 | 4777 days | 1% |
| nztintin | 9/10 | 5063 days | 1% |
| Matt Kelley | 8/10 | 5072 days | 1% |
| Eric Lombaard | 8/10 | 5075 days | 1% |
| Beat Kindler | 10/10 | 5075 days | 1% |
| Jim Addicott | 10/10 | 5076 days | 1% |
| Jurg Pfaendler | 8/10 | 5080 days | 1% |
| Paul & Michelle Harmer | 7/10 | 5085 days | 1% |
| Heike | 10/10 | 5087 days | 1% |
| Des & Ann Bidwell | 10/10 | 5087 days | 1% |
| Barrie Corless | 5/10 | 5091 days | 1% |
| Mike & April Prince | 7/10 | 5105 days | 1% |
| John Jacobs | 9/10 | 5120 days | 1% |
| CMJ | 9/10 | 5123 days | 1% |
| Les and Carole Savins | 8/10 | 5160 days | 1% |
| Sebastian | 8/10 | 5163 days | 1% |
| Steve | 9/10 | 5168 days | 1% |
| redmatthew16 | 9/10 | 5368 days | 1% |
| Rob O'Neill | 10/10 | 5400 days | 1% |
| Peter | 4/10 | 5413 days | 1% |
| Richard Dudfield | 9/10 | 5415 days | 1% |
| Wayne Forrow | 8/10 | 5419 days | 1% |
| Fasto Maserati | 10/10 | 5419 days | 1% |
| Bill Cutler | 9/10 | 5419 days | 1% |
| Marilyn Buboltz | 9/10 | 5421 days | 1% |
| Rob Hitsert | 9/10 | 5421 days | 1% |
| Gerhard | 9/10 | 5430 days | 1% |
| Jennifer Sunderland | 6/10 | 5431 days | 1% |
| Alice | 9/10 | 5433 days | 1% |
| Bucher Weruer | 8/10 | 5433 days | 1% |
| Marcus | 9/10 | 5434 days | 1% |
| Derek McLoughlin | 9/10 | 5436 days | 1% |
| Flueckiger | 10/10 | 5438 days | 1% |
| Manfred & Gabi | 9/10 | 5440 days | 1% |
| Conny | 10/10 | 5728 days | 1% |
| Peter Aerborg | 9/10 | 5730 days | 1% |
| Quin | 6/10 | 5763 days | 1% |
| Polil | 8/10 | 5780 days | 1% |
| Jvjm Family | 8/10 | 5782 days | 1% |
| Ian Watson | 10/10 | 5795 days | 1% |
| Sue | 9/10 | 5807 days | 1% |
| Harmann Volker | 9/10 | 5816 days | 1% |
| R Gilge | 8/10 | 5818 days | 1% |
| Iris W | 8/10 | 5828 days | 1% |
| Samantha Piekuta | 9/10 | 5831 days | 1% |
| Omar Frenchy | 8/10 | 5831 days | 1% |
| Buss | 8/10 | 5835 days | 1% |
| Jennifer Templeton | 4/10 | 5839 days | 1% |
| middendorp | 9/10 | 5868 days | 1% |
| marylus | 8/10 | 5868 days | 1% |
| Seiler | 8/10 | 5886 days | 1% |
| Flavia Mionelli | 10/10 | 5896 days | 1% |
| Peattie | 9/10 | 5896 days | 1% |
| Roma | 7/10 | 5907 days | 1% |
| canadianislandgirl | 7/10 | 5914 days | 1% |
| hellami | 9/10 | 5914 days | 1% |
| bogaard | 8/10 | 6010 days | 1% |
| Clem | 7/10 | 6011 days | 1% |
| Kazmeister | 10/10 | 6067 days | 1% |
| annysp | 9/10 | 6128 days | 1% |
| JimmyK | 8/10 | 6146 days | 1% |
| Edcan | 7/10 | 6146 days | 1% |
| Johannes & Jopke Fokkema | 8/10 | 6148 days | 1% |
| LucyPoland | 8/10 | 6149 days | 1% |
| NikkiB1 | 3/10 | 6163 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
-2.59% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 44 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 128 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 125 | -2.53% |
| 126 | -2.55% |
| 127 | -2.57% |
| 128 | -2.59% |
| 129 | -2.61% |
| 130 | -2.64% |
| 131 | -2.66% |
| … | … |
Balancing Adjustment
2.25% 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.