Hi, 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
114 Valid Reviews
The Portobello Village Tourist Park experience has a total of 114 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 114 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 15 |
|
13% |
| 9/10 | 25 |
|
22% |
| 8/10 | 35 |
|
31% |
| 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% |
78.42% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.42% and is based on 114 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 114 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
80.22%
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 |
|---|---|---|---|
| India Cooper-Clark | 8/10 | 60 days | 100% |
| cirefice bernard | 7/10 | 242 days | 92% |
| Paul | 8/10 | 303 days | 95% |
| Rich | 7/10 | 395 days | 87% |
| Eline | 6/10 | 486 days | 76% |
| Laurie | 9/10 | 517 days | 86% |
| Hannah | 10/10 | 545 days | 85% |
| Shaun | 10/10 | 545 days | 85% |
| Anne | 8/10 | 576 days | 81% |
| Fredrik | 6/10 | 576 days | 71% |
| Nicolas | 7/10 | 668 days | 71% |
| Hayley | 9/10 | 729 days | 70% |
| Lindsay Byrnes | 8/10 | 851 days | 59% |
| Fabienne | 8/10 | 882 days | 56% |
| Ian Garcia | 8/10 | 911 days | 53% |
| Tine Warner | 9/10 | 942 days | 50% |
| Joel Fryett | 6/10 | 942 days | 43% |
| Loam | 6/10 | 942 days | 43% |
| M.K. | 9/10 | 1034 days | 41% |
| Ryli West | 8/10 | 1217 days | 26% |
| Steve | 9/10 | 1248 days | 24% |
| Jake | 10/10 | 1276 days | 22% |
| Arie | 7/10 | 1307 days | 19% |
| Julia | 9/10 | 1338 days | 19% |
| Debby | 9/10 | 1368 days | 17% |
| Lothar Valentijn | 10/10 | 1368 days | 17% |
| Sarah | 9/10 | 1368 days | 17% |
| Colin | 8/10 | 1399 days | 15% |
| Lisa | 10/10 | 1521 days | 10% |
| Anne S | 9/10 | 1613 days | 7% |
| Ana and Rob | 8/10 | 2190 days | 4% |
| Sandy | 9/10 | 2221 days | 4% |
| Maria | 6/10 | 2343 days | 3% |
| M&P | 8/10 | 2372 days | 4% |
| Tom Z. | 9/10 | 2403 days | 4% |
| Tea | 8/10 | 2434 days | 4% |
| Sue W | 8/10 | 2464 days | 4% |
| Maryline | 9/10 | 2678 days | 3% |
| Esa | 7/10 | 2709 days | 3% |
| Vincent | 9/10 | 2709 days | 3% |
| TP&MM | 8/10 | 2709 days | 3% |
| Chantal | 10/10 | 2799 days | 3% |
| James & Kerry | 9/10 | 2829 days | 3% |
| Melinda Pyke | 8/10 | 2890 days | 3% |
| Grizzly Girl | 8/10 | 2890 days | 3% |
| Esteban | 8/10 | 3043 days | 2% |
| Bridget Cumming | 7/10 | 3081 days | 2% |
| M A Pelton | 10/10 | 3084 days | 2% |
| UK 50-something couple | 8/10 | 3102 days | 2% |
| Suzanne Wijsman | 9/10 | 3110 days | 2% |
| Sandra Jeffers | 6/10 | 3210 days | 2% |
| Howard Morris | 8/10 | 3226 days | 2% |
| Geoff Steele | 7/10 | 3254 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3481 days | 1% |
| sara hoeflaken | 8/10 | 3495 days | 1% |
| Roeland Driessen | 8/10 | 3497 days | 1% |
| Cyrielle Vallat | 6/10 | 3553 days | 1% |
| Susan H | 10/10 | 3592 days | 1% |
| Ruth Hernandez | 8/10 | 3594 days | 1% |
| Kate | 8/10 | 3727 days | 1% |
| Joanna du Toit | 7/10 | 3884 days | 1% |
| Yvonne Wu | 8/10 | 4108 days | 0% |
| Soizic Vandermeersch | 7/10 | 4131 days | 0% |
| Rossco | 6/10 | 4138 days | 0% |
| Erica b | 7/10 | 4138 days | 0% |
| Larry Dashiell | 9/10 | 4169 days | 0% |
| June Harris | 6/10 | 4228 days | 0% |
| Matthias Thorn | 7/10 | 4228 days | 0% |
| Richard | 8/10 | 4413 days | 1% |
| travelscot | 9/10 | 4474 days | 1% |
| Patricia Revel | 9/10 | 4505 days | 1% |
| Katarina | 10/10 | 4506 days | 1% |
| Gillian Scott | 7/10 | 4533 days | 1% |
| Julie Robinson | 7/10 | 4550 days | 0% |
| Julien de la lande | 6/10 | 4576 days | 0% |
| Wouter Bosch | 7/10 | 4576 days | 0% |
| Aude Moulin | 5/10 | 4576 days | 0% |
| Maya Bakker-deDreu | 8/10 | 4584 days | 1% |
| JoMary Smith | 8/10 | 4594 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4625 days | 1% |
| Grantygrant | 7/10 | 4869 days | 1% |
| Bertiethebus | 8/10 | 4900 days | 1% |
| Kadyan | 6/10 | 4900 days | 1% |
| Malgorzata | 6/10 | 4904 days | 0% |
| Moni Sangoi | 7/10 | 4928 days | 1% |
| Puma17 | 7/10 | 4959 days | 1% |
| David | 5/10 | 4959 days | 1% |
| Auger | 10/10 | 4997 days | 1% |
| Auger | 10/10 | 4997 days | 1% |
| Mike & Jennie | 8/10 | 5276 days | 1% |
| Balonno | 3/10 | 5325 days | 0% |
| lydzb | 6/10 | 5356 days | 1% |
| ncopas | 1/10 | 5356 days | 0% |
| Annie Breton | 6/10 | 5614 days | 0% |
| Robin Smith | 10/10 | 5617 days | 1% |
| Jim & Rebecca | 9/10 | 5623 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5624 days | 1% |
| Chris | 8/10 | 5625 days | 1% |
| LandJ | 9/10 | 5631 days | 1% |
| Manfred & Gabi | 9/10 | 5642 days | 1% |
| Frank Lehe | 8/10 | 5644 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5647 days | 1% |
| Roy Seymour | 8/10 | 5650 days | 1% |
| Sabine | 9/10 | 5909 days | 1% |
| Anna | 9/10 | 5914 days | 1% |
| Siebels Wilke | 8/10 | 5928 days | 1% |
| Peter Aerborg | 9/10 | 5932 days | 1% |
| Peter Brown | 10/10 | 5992 days | 1% |
| John Cox | 8/10 | 6002 days | 1% |
| Helmet Paula | 3/10 | 6009 days | 0% |
| Lorena | 10/10 | 6024 days | 1% |
| Alexis De Wilde | 9/10 | 6096 days | 1% |
| Decuq | 7/10 | 6097 days | 0% |
| Vivien Williams | 10/10 | 6348 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
-0.43% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 123 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 41 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 38 | -0.40% |
| 39 | -0.41% |
| 40 | -0.42% |
| 41 | -0.43% |
| 42 | -0.44% |
| 43 | -0.45% |
| 44 | -0.46% |
| … | … |
Balancing Adjustment
3.06% 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.