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
80.55%
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 |
|---|---|---|---|
| cirefice bernard | 7/10 | 100 days | 96% |
| Paul | 8/10 | 161 days | 100% |
| Rich | 7/10 | 253 days | 93% |
| Eline | 6/10 | 344 days | 83% |
| Laurie | 9/10 | 375 days | 94% |
| Hannah | 10/10 | 403 days | 94% |
| Shaun | 10/10 | 403 days | 94% |
| Anne | 8/10 | 434 days | 91% |
| Fredrik | 6/10 | 434 days | 80% |
| Nicolas | 7/10 | 526 days | 81% |
| Hayley | 9/10 | 587 days | 82% |
| Lindsay Byrnes | 8/10 | 709 days | 72% |
| Fabienne | 8/10 | 740 days | 70% |
| Ian Garcia | 8/10 | 769 days | 67% |
| Tine Warner | 9/10 | 800 days | 65% |
| Joel Fryett | 6/10 | 800 days | 57% |
| Loam | 6/10 | 800 days | 57% |
| M.K. | 9/10 | 892 days | 56% |
| Ryli West | 8/10 | 1075 days | 38% |
| Steve | 9/10 | 1106 days | 35% |
| Jake | 10/10 | 1134 days | 33% |
| Arie | 7/10 | 1165 days | 29% |
| Julia | 9/10 | 1196 days | 28% |
| Debby | 9/10 | 1226 days | 26% |
| Lothar Valentijn | 10/10 | 1226 days | 26% |
| Sarah | 9/10 | 1226 days | 26% |
| Colin | 8/10 | 1257 days | 24% |
| Lisa | 10/10 | 1379 days | 17% |
| Anne S | 9/10 | 1471 days | 12% |
| Ana and Rob | 8/10 | 2048 days | 5% |
| Sandy | 9/10 | 2079 days | 5% |
| Maria | 6/10 | 2201 days | 4% |
| M&P | 8/10 | 2230 days | 4% |
| Tom Z. | 9/10 | 2261 days | 4% |
| Tea | 8/10 | 2292 days | 4% |
| Sue W | 8/10 | 2322 days | 4% |
| Maryline | 9/10 | 2536 days | 4% |
| Esa | 7/10 | 2567 days | 3% |
| Vincent | 9/10 | 2567 days | 4% |
| TP&MM | 8/10 | 2567 days | 4% |
| Chantal | 10/10 | 2657 days | 3% |
| James & Kerry | 9/10 | 2687 days | 3% |
| Melinda Pyke | 8/10 | 2748 days | 3% |
| Grizzly Girl | 8/10 | 2748 days | 3% |
| Esteban | 8/10 | 2901 days | 3% |
| Bridget Cumming | 7/10 | 2939 days | 3% |
| M A Pelton | 10/10 | 2942 days | 3% |
| UK 50-something couple | 8/10 | 2960 days | 3% |
| Suzanne Wijsman | 9/10 | 2968 days | 3% |
| Sandra Jeffers | 6/10 | 3068 days | 2% |
| Howard Morris | 8/10 | 3084 days | 3% |
| Geoff Steele | 7/10 | 3113 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3339 days | 2% |
| sara hoeflaken | 8/10 | 3353 days | 2% |
| Roeland Driessen | 8/10 | 3356 days | 2% |
| Cyrielle Vallat | 6/10 | 3411 days | 2% |
| Susan H | 10/10 | 3450 days | 2% |
| Ruth Hernandez | 8/10 | 3452 days | 2% |
| Kate | 8/10 | 3585 days | 2% |
| Joanna du Toit | 7/10 | 3742 days | 1% |
| Yvonne Wu | 8/10 | 3967 days | 1% |
| Soizic Vandermeersch | 7/10 | 3989 days | 1% |
| Rossco | 6/10 | 3997 days | 1% |
| Erica b | 7/10 | 3997 days | 1% |
| Larry Dashiell | 9/10 | 4028 days | 1% |
| June Harris | 6/10 | 4087 days | 0% |
| Matthias Thorn | 7/10 | 4087 days | 1% |
| Richard | 8/10 | 4271 days | 0% |
| travelscot | 9/10 | 4332 days | 0% |
| Patricia Revel | 9/10 | 4363 days | 0% |
| Katarina | 10/10 | 4364 days | 0% |
| Gillian Scott | 7/10 | 4391 days | 1% |
| Julie Robinson | 7/10 | 4408 days | 1% |
| Julien de la lande | 6/10 | 4434 days | 1% |
| Wouter Bosch | 7/10 | 4434 days | 1% |
| Aude Moulin | 5/10 | 4434 days | 1% |
| Maya Bakker-deDreu | 8/10 | 4442 days | 1% |
| JoMary Smith | 8/10 | 4452 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4483 days | 1% |
| Grantygrant | 7/10 | 4727 days | 1% |
| Bertiethebus | 8/10 | 4758 days | 1% |
| Kadyan | 6/10 | 4758 days | 1% |
| Malgorzata | 6/10 | 4762 days | 1% |
| Moni Sangoi | 7/10 | 4786 days | 1% |
| Puma17 | 7/10 | 4817 days | 1% |
| David | 5/10 | 4817 days | 1% |
| Auger | 10/10 | 4855 days | 1% |
| Auger | 10/10 | 4855 days | 1% |
| Mike & Jennie | 8/10 | 5134 days | 1% |
| Balonno | 3/10 | 5183 days | 1% |
| lydzb | 6/10 | 5214 days | 1% |
| ncopas | 1/10 | 5214 days | 0% |
| Annie Breton | 6/10 | 5472 days | 1% |
| Robin Smith | 10/10 | 5475 days | 1% |
| Jim & Rebecca | 9/10 | 5481 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5482 days | 1% |
| Chris | 8/10 | 5483 days | 1% |
| LandJ | 9/10 | 5489 days | 1% |
| Manfred & Gabi | 9/10 | 5500 days | 1% |
| Frank Lehe | 8/10 | 5502 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5505 days | 1% |
| Roy Seymour | 8/10 | 5508 days | 1% |
| Sabine | 9/10 | 5767 days | 1% |
| Anna | 9/10 | 5772 days | 1% |
| Siebels Wilke | 8/10 | 5786 days | 1% |
| Peter Aerborg | 9/10 | 5790 days | 1% |
| Peter Brown | 10/10 | 5850 days | 1% |
| John Cox | 8/10 | 5860 days | 1% |
| Helmet Paula | 3/10 | 5867 days | 0% |
| Lorena | 10/10 | 5882 days | 1% |
| Alexis De Wilde | 9/10 | 5954 days | 1% |
| Decuq | 7/10 | 5955 days | 1% |
| Vivien Williams | 10/10 | 6206 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
-1.43% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 71 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 68 | -1.37% |
| 69 | -1.39% |
| 70 | -1.41% |
| 71 | -1.43% |
| 72 | -1.45% |
| 73 | -1.47% |
| 74 | -1.49% |
| … | … |
Balancing Adjustment
3.25% 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
82%
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.