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 Portobello Village Tourist 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.
Portobello Village Tourist Park
Valid Reviews
113 Valid Reviews
The Portobello Village Tourist Park experience has a total of 113 valid reviews. There are no 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 113 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 15 |
|
13% |
| 9/10 | 25 |
|
22% |
| 8/10 | 34 |
|
30% |
| 7/10 | 19 |
|
17% |
| 6/10 | 14 |
|
12% |
| 5/10 | 3 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 2 |
|
2% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
78.41% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.41% and is based on 113 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
30 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 113 valid reviews, the experience has 30 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 30 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 6 |
|
20% |
| 9/10 | 7 |
|
23% |
| 8/10 | 9 |
|
30% |
| 7/10 | 3 |
|
10% |
| 6/10 | 3 |
|
10% |
| 5/10 | 1 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
80.67% Average
The raw data average (mean) for all the Portobello Village Tourist Park face-to-face reviews is 80.67% and is based on 30 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
80.73%
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 |
|---|---|---|---|
| cirefice bernard | 7/10 | 41 days | 95% |
| Paul | 8/10 | 102 days | 100% |
| Rich | 7/10 | 194 days | 93% |
| Eline | 6/10 | 285 days | 84% |
| Laurie | 9/10 | 316 days | 96% |
| Hannah | 10/10 | 344 days | 96% |
| Shaun | 10/10 | 344 days | 96% |
| Anne | 8/10 | 375 days | 93% |
| Fredrik | 6/10 | 375 days | 81% |
| Nicolas | 7/10 | 467 days | 84% |
| Hayley | 9/10 | 528 days | 85% |
| Lindsay Byrnes | 8/10 | 650 days | 76% |
| Fabienne | 8/10 | 681 days | 74% |
| Ian Garcia | 8/10 | 710 days | 72% |
| Tine Warner | 9/10 | 741 days | 70% |
| Joel Fryett | 6/10 | 741 days | 61% |
| Loam | 6/10 | 741 days | 61% |
| M.K. | 9/10 | 833 days | 61% |
| Ryli West | 8/10 | 1016 days | 43% |
| Steve | 9/10 | 1047 days | 40% |
| Jake | 10/10 | 1075 days | 38% |
| Arie | 7/10 | 1106 days | 33% |
| Julia | 9/10 | 1137 days | 33% |
| Debby | 9/10 | 1167 days | 30% |
| Lothar Valentijn | 10/10 | 1167 days | 30% |
| Sarah | 9/10 | 1167 days | 30% |
| Colin | 8/10 | 1198 days | 28% |
| Lisa | 10/10 | 1320 days | 20% |
| Anne S | 9/10 | 1412 days | 15% |
| Ana and Rob | 8/10 | 1989 days | 5% |
| Sandy | 9/10 | 2020 days | 5% |
| Maria | 6/10 | 2142 days | 4% |
| M&P | 8/10 | 2171 days | 4% |
| Tom Z. | 9/10 | 2202 days | 4% |
| Tea | 8/10 | 2233 days | 4% |
| Sue W | 8/10 | 2263 days | 4% |
| Maryline | 9/10 | 2477 days | 4% |
| Esa | 7/10 | 2508 days | 3% |
| Vincent | 9/10 | 2508 days | 4% |
| TP&MM | 8/10 | 2508 days | 4% |
| Chantal | 10/10 | 2598 days | 4% |
| James & Kerry | 9/10 | 2628 days | 3% |
| Melinda Pyke | 8/10 | 2689 days | 3% |
| Grizzly Girl | 8/10 | 2689 days | 3% |
| Esteban | 8/10 | 2842 days | 3% |
| Bridget Cumming | 7/10 | 2880 days | 3% |
| M A Pelton | 10/10 | 2883 days | 3% |
| UK 50-something couple | 8/10 | 2901 days | 3% |
| Suzanne Wijsman | 9/10 | 2909 days | 3% |
| Sandra Jeffers | 6/10 | 3009 days | 2% |
| Howard Morris | 8/10 | 3025 days | 3% |
| Geoff Steele | 7/10 | 3053 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3280 days | 2% |
| sara hoeflaken | 8/10 | 3294 days | 2% |
| Roeland Driessen | 8/10 | 3296 days | 2% |
| Cyrielle Vallat | 6/10 | 3352 days | 2% |
| Susan H | 10/10 | 3391 days | 2% |
| Ruth Hernandez | 8/10 | 3393 days | 2% |
| Kate | 8/10 | 3526 days | 2% |
| Joanna du Toit | 7/10 | 3683 days | 1% |
| Yvonne Wu | 8/10 | 3907 days | 1% |
| Soizic Vandermeersch | 7/10 | 3930 days | 1% |
| Rossco | 6/10 | 3937 days | 1% |
| Erica b | 7/10 | 3937 days | 1% |
| Larry Dashiell | 9/10 | 3968 days | 1% |
| June Harris | 6/10 | 4027 days | 1% |
| Matthias Thorn | 7/10 | 4027 days | 1% |
| Richard | 8/10 | 4212 days | 0% |
| travelscot | 9/10 | 4273 days | 0% |
| Patricia Revel | 9/10 | 4304 days | 0% |
| Katarina | 10/10 | 4305 days | 0% |
| Gillian Scott | 7/10 | 4332 days | 0% |
| Julie Robinson | 7/10 | 4349 days | 0% |
| Julien de la lande | 6/10 | 4375 days | 0% |
| Wouter Bosch | 7/10 | 4375 days | 0% |
| Aude Moulin | 5/10 | 4375 days | 0% |
| Maya Bakker-deDreu | 8/10 | 4383 days | 1% |
| JoMary Smith | 8/10 | 4393 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4424 days | 1% |
| Grantygrant | 7/10 | 4668 days | 1% |
| Bertiethebus | 8/10 | 4699 days | 1% |
| Kadyan | 6/10 | 4699 days | 1% |
| Malgorzata | 6/10 | 4703 days | 1% |
| Moni Sangoi | 7/10 | 4727 days | 1% |
| Puma17 | 7/10 | 4758 days | 1% |
| David | 5/10 | 4758 days | 1% |
| Auger | 10/10 | 4796 days | 1% |
| Auger | 10/10 | 4796 days | 1% |
| Mike & Jennie | 8/10 | 5075 days | 1% |
| Balonno | 3/10 | 5124 days | 1% |
| lydzb | 6/10 | 5155 days | 1% |
| ncopas | 1/10 | 5155 days | 0% |
| Annie Breton | 6/10 | 5413 days | 1% |
| Robin Smith | 10/10 | 5416 days | 1% |
| Jim & Rebecca | 9/10 | 5422 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5423 days | 1% |
| Chris | 8/10 | 5424 days | 1% |
| LandJ | 9/10 | 5430 days | 1% |
| Manfred & Gabi | 9/10 | 5441 days | 1% |
| Frank Lehe | 8/10 | 5443 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5446 days | 1% |
| Roy Seymour | 8/10 | 5449 days | 1% |
| Sabine | 9/10 | 5708 days | 1% |
| Anna | 9/10 | 5713 days | 1% |
| Siebels Wilke | 8/10 | 5727 days | 1% |
| Peter Aerborg | 9/10 | 5731 days | 1% |
| Peter Brown | 10/10 | 5791 days | 1% |
| John Cox | 8/10 | 5801 days | 1% |
| Helmet Paula | 3/10 | 5808 days | 0% |
| Lorena | 10/10 | 5823 days | 1% |
| Alexis De Wilde | 9/10 | 5895 days | 1% |
| Decuq | 7/10 | 5896 days | 1% |
| Vivien Williams | 10/10 | 6147 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 Portobello Village Tourist Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.24% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 44 days. However the Portobello Village Tourist 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 Portobello Village Tourist Park experience has been adjusted for 12 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 9 | -0.18% |
| 10 | -0.20% |
| 11 | -0.22% |
| 12 | -0.24% |
| 13 | -0.26% |
| 14 | -0.28% |
| 15 | -0.30% |
| … | … |
Balancing Adjustment
2.87% 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
83%
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.