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
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
80.02%
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 | 160 days | 100% |
| cirefice bernard | 7/10 | 342 days | 90% |
| Paul | 8/10 | 403 days | 92% |
| Rich | 7/10 | 495 days | 83% |
| Eline | 6/10 | 586 days | 72% |
| Laurie | 9/10 | 617 days | 80% |
| Hannah | 10/10 | 645 days | 79% |
| Shaun | 10/10 | 645 days | 79% |
| Anne | 8/10 | 676 days | 75% |
| Fredrik | 6/10 | 676 days | 66% |
| Nicolas | 7/10 | 768 days | 64% |
| Hayley | 9/10 | 829 days | 62% |
| Lindsay Byrnes | 8/10 | 951 days | 49% |
| Fabienne | 8/10 | 982 days | 46% |
| Ian Garcia | 8/10 | 1011 days | 43% |
| Tine Warner | 9/10 | 1042 days | 41% |
| Joel Fryett | 6/10 | 1042 days | 36% |
| Loam | 6/10 | 1042 days | 36% |
| M.K. | 9/10 | 1134 days | 33% |
| Ryli West | 8/10 | 1317 days | 20% |
| Steve | 9/10 | 1348 days | 18% |
| Jake | 10/10 | 1376 days | 17% |
| Arie | 7/10 | 1407 days | 14% |
| Julia | 9/10 | 1438 days | 14% |
| Debby | 9/10 | 1468 days | 12% |
| Lothar Valentijn | 10/10 | 1468 days | 13% |
| Sarah | 9/10 | 1468 days | 12% |
| Colin | 8/10 | 1499 days | 11% |
| Lisa | 10/10 | 1621 days | 8% |
| Anne S | 9/10 | 1713 days | 6% |
| Ana and Rob | 8/10 | 2290 days | 4% |
| Sandy | 9/10 | 2321 days | 4% |
| Maria | 6/10 | 2443 days | 3% |
| M&P | 8/10 | 2472 days | 4% |
| Tom Z. | 9/10 | 2503 days | 4% |
| Tea | 8/10 | 2534 days | 4% |
| Sue W | 8/10 | 2564 days | 4% |
| Maryline | 9/10 | 2778 days | 3% |
| Esa | 7/10 | 2809 days | 3% |
| Vincent | 9/10 | 2809 days | 3% |
| TP&MM | 8/10 | 2809 days | 3% |
| Chantal | 10/10 | 2899 days | 3% |
| James & Kerry | 9/10 | 2929 days | 3% |
| Melinda Pyke | 8/10 | 2990 days | 3% |
| Grizzly Girl | 8/10 | 2990 days | 3% |
| Esteban | 8/10 | 3143 days | 2% |
| Bridget Cumming | 7/10 | 3181 days | 2% |
| M A Pelton | 10/10 | 3184 days | 2% |
| UK 50-something couple | 8/10 | 3202 days | 2% |
| Suzanne Wijsman | 9/10 | 3210 days | 2% |
| Sandra Jeffers | 6/10 | 3310 days | 2% |
| Howard Morris | 8/10 | 3326 days | 2% |
| Geoff Steele | 7/10 | 3354 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3581 days | 1% |
| sara hoeflaken | 8/10 | 3595 days | 1% |
| Roeland Driessen | 8/10 | 3597 days | 1% |
| Cyrielle Vallat | 6/10 | 3653 days | 1% |
| Susan H | 10/10 | 3692 days | 1% |
| Ruth Hernandez | 8/10 | 3694 days | 1% |
| Kate | 8/10 | 3827 days | 1% |
| Joanna du Toit | 7/10 | 3984 days | 1% |
| Yvonne Wu | 8/10 | 4208 days | 0% |
| Soizic Vandermeersch | 7/10 | 4231 days | 0% |
| Rossco | 6/10 | 4238 days | 0% |
| Erica b | 7/10 | 4238 days | 0% |
| Larry Dashiell | 9/10 | 4269 days | 0% |
| June Harris | 6/10 | 4328 days | 0% |
| Matthias Thorn | 7/10 | 4328 days | 0% |
| Richard | 8/10 | 4513 days | 1% |
| travelscot | 9/10 | 4574 days | 1% |
| Patricia Revel | 9/10 | 4605 days | 1% |
| Katarina | 10/10 | 4606 days | 1% |
| Gillian Scott | 7/10 | 4633 days | 1% |
| Julie Robinson | 7/10 | 4650 days | 1% |
| Julien de la lande | 6/10 | 4676 days | 1% |
| Wouter Bosch | 7/10 | 4676 days | 1% |
| Aude Moulin | 5/10 | 4676 days | 0% |
| Maya Bakker-deDreu | 8/10 | 4684 days | 1% |
| JoMary Smith | 8/10 | 4694 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4725 days | 1% |
| Grantygrant | 7/10 | 4969 days | 1% |
| Bertiethebus | 8/10 | 5000 days | 1% |
| Kadyan | 6/10 | 5000 days | 1% |
| Malgorzata | 6/10 | 5004 days | 1% |
| Moni Sangoi | 7/10 | 5028 days | 1% |
| Puma17 | 7/10 | 5059 days | 1% |
| David | 5/10 | 5059 days | 1% |
| Auger | 10/10 | 5097 days | 1% |
| Auger | 10/10 | 5097 days | 1% |
| Mike & Jennie | 8/10 | 5376 days | 1% |
| Balonno | 3/10 | 5425 days | 0% |
| lydzb | 6/10 | 5456 days | 1% |
| ncopas | 1/10 | 5456 days | 0% |
| Annie Breton | 6/10 | 5714 days | 1% |
| Robin Smith | 10/10 | 5717 days | 1% |
| Jim & Rebecca | 9/10 | 5723 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5724 days | 1% |
| Chris | 8/10 | 5725 days | 1% |
| LandJ | 9/10 | 5731 days | 1% |
| Manfred & Gabi | 9/10 | 5742 days | 1% |
| Frank Lehe | 8/10 | 5744 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5747 days | 1% |
| Roy Seymour | 8/10 | 5750 days | 1% |
| Sabine | 9/10 | 6009 days | 1% |
| Anna | 9/10 | 6014 days | 1% |
| Siebels Wilke | 8/10 | 6028 days | 1% |
| Peter Aerborg | 9/10 | 6032 days | 1% |
| Peter Brown | 10/10 | 6092 days | 1% |
| John Cox | 8/10 | 6102 days | 1% |
| Helmet Paula | 3/10 | 6109 days | 0% |
| Lorena | 10/10 | 6124 days | 1% |
| Alexis De Wilde | 9/10 | 6196 days | 1% |
| Decuq | 7/10 | 6197 days | 1% |
| Vivien Williams | 10/10 | 6448 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
-2.78% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 47 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 141 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 138 | -2.72% |
| 139 | -2.74% |
| 140 | -2.76% |
| 141 | -2.78% |
| 142 | -2.80% |
| 143 | -2.82% |
| 144 | -2.84% |
| … | … |
Balancing Adjustment
3.84% 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
81%
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.