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
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
88.39%
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 | 641 days | 100% |
| Matt Olejniczak | 9/10 | 702 days | 93% |
| Julia | 9/10 | 792 days | 83% |
| Darrell | 8/10 | 1067 days | 48% |
| Alec | 8/10 | 1126 days | 42% |
| Ralph Gleek | 10/10 | 1460 days | 16% |
| Shar-ron & Jim | 10/10 | 1613 days | 10% |
| Kiwi | 3/10 | 2102 days | 3% |
| Liz | 3/10 | 2132 days | 3% |
| Clare & Gerry | 10/10 | 2163 days | 6% |
| Kiwi | 9/10 | 2222 days | 5% |
| Jacqui | 10/10 | 2253 days | 5% |
| helen reeve | 10/10 | 2314 days | 5% |
| Bex & Jake | 8/10 | 2467 days | 5% |
| Sree Polavarapu | 10/10 | 2528 days | 5% |
| Tammy Schein | 9/10 | 2647 days | 4% |
| Chanelle Weller | 6/10 | 2851 days | 3% |
| Scott McGee | 1/10 | 2920 days | 1% |
| Shay | 9/10 | 3136 days | 3% |
| Jean marc Daubenfeld | 9/10 | 3314 days | 3% |
| Matthew Hallowell | 7/10 | 3315 days | 2% |
| Caro G | 9/10 | 3384 days | 2% |
| Robert | 9/10 | 3648 days | 2% |
| Manuela Opprecht | 10/10 | 3663 days | 2% |
| Fay Young | 5/10 | 3682 days | 1% |
| Leah Stewart | 9/10 | 3688 days | 2% |
| G & W | 5/10 | 3956 days | 1% |
| Sybille Willenbrock | 10/10 | 4011 days | 1% |
| Wouter Bosch | 9/10 | 4030 days | 1% |
| Aude Moulin | 9/10 | 4030 days | 1% |
| The Germans from Australiia | 9/10 | 4048 days | 1% |
| Elizabeth | 7/10 | 4050 days | 1% |
| Roy Driehuis | 7/10 | 4050 days | 1% |
| andrewmh | 8/10 | 4079 days | 1% |
| Henrik Joshua | 9/10 | 4109 days | 1% |
| Kerri | 8/10 | 4170 days | 0% |
| Elise Robson | 6/10 | 4262 days | 0% |
| Claire | 7/10 | 4354 days | 0% |
| Fernando Martin | 8/10 | 4361 days | 0% |
| Michael Nolan | 6/10 | 4382 days | 1% |
| Cabby | 4/10 | 4382 days | 1% |
| Roeland Driessen | 8/10 | 4413 days | 1% |
| William Notcutt | 3/10 | 4413 days | 1% |
| Fred and Carin | 6/10 | 4433 days | 1% |
| nztintin | 9/10 | 4719 days | 1% |
| Matt Kelley | 8/10 | 4728 days | 1% |
| Eric Lombaard | 8/10 | 4731 days | 1% |
| Beat Kindler | 10/10 | 4731 days | 1% |
| Jim Addicott | 10/10 | 4732 days | 1% |
| Jurg Pfaendler | 8/10 | 4736 days | 1% |
| Paul & Michelle Harmer | 7/10 | 4741 days | 1% |
| Heike | 10/10 | 4743 days | 1% |
| Des & Ann Bidwell | 10/10 | 4743 days | 1% |
| Barrie Corless | 5/10 | 4747 days | 1% |
| Mike & April Prince | 7/10 | 4761 days | 1% |
| John Jacobs | 9/10 | 4776 days | 1% |
| CMJ | 9/10 | 4779 days | 1% |
| Les and Carole Savins | 8/10 | 4816 days | 1% |
| Sebastian | 8/10 | 4819 days | 1% |
| Steve | 9/10 | 4824 days | 1% |
| redmatthew16 | 9/10 | 5024 days | 1% |
| Rob O'Neill | 10/10 | 5056 days | 1% |
| Peter | 4/10 | 5069 days | 1% |
| Richard Dudfield | 9/10 | 5071 days | 1% |
| Wayne Forrow | 8/10 | 5075 days | 1% |
| Fasto Maserati | 10/10 | 5075 days | 1% |
| Bill Cutler | 9/10 | 5075 days | 1% |
| Marilyn Buboltz | 9/10 | 5077 days | 1% |
| Rob Hitsert | 9/10 | 5077 days | 1% |
| Gerhard | 9/10 | 5086 days | 1% |
| Jennifer Sunderland | 6/10 | 5087 days | 1% |
| Alice | 9/10 | 5089 days | 1% |
| Bucher Weruer | 8/10 | 5089 days | 1% |
| Marcus | 9/10 | 5090 days | 1% |
| Derek McLoughlin | 9/10 | 5092 days | 1% |
| Flueckiger | 10/10 | 5094 days | 1% |
| Manfred & Gabi | 9/10 | 5096 days | 1% |
| Conny | 10/10 | 5384 days | 1% |
| Peter Aerborg | 9/10 | 5386 days | 1% |
| Quin | 6/10 | 5419 days | 1% |
| Polil | 8/10 | 5436 days | 1% |
| Jvjm Family | 8/10 | 5438 days | 1% |
| Ian Watson | 10/10 | 5451 days | 1% |
| Sue | 9/10 | 5463 days | 1% |
| Harmann Volker | 9/10 | 5472 days | 1% |
| R Gilge | 8/10 | 5474 days | 1% |
| Iris W | 8/10 | 5484 days | 1% |
| Samantha Piekuta | 9/10 | 5487 days | 1% |
| Omar Frenchy | 8/10 | 5487 days | 1% |
| Buss | 8/10 | 5491 days | 1% |
| Jennifer Templeton | 4/10 | 5495 days | 1% |
| middendorp | 9/10 | 5524 days | 1% |
| marylus | 8/10 | 5524 days | 1% |
| Seiler | 8/10 | 5542 days | 1% |
| Flavia Mionelli | 10/10 | 5552 days | 1% |
| Peattie | 9/10 | 5552 days | 1% |
| Roma | 7/10 | 5563 days | 1% |
| canadianislandgirl | 7/10 | 5570 days | 1% |
| hellami | 9/10 | 5570 days | 1% |
| bogaard | 8/10 | 5666 days | 1% |
| Clem | 7/10 | 5667 days | 1% |
| Kazmeister | 10/10 | 5723 days | 1% |
| annysp | 9/10 | 5784 days | 1% |
| JimmyK | 8/10 | 5802 days | 1% |
| Edcan | 7/10 | 5802 days | 1% |
| Johannes & Jopke Fokkema | 8/10 | 5804 days | 1% |
| LucyPoland | 8/10 | 5805 days | 1% |
| NikkiB1 | 3/10 | 5819 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
-4.14% 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.12% |
| 200 | -4.14% |
| 201 | -4.16% |
| 202 | -4.18% |
| 203 | -4.20% |
| … | … |
Balancing Adjustment
1.98% 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
86%
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.