Ranking Score Explained

Hi there, 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 Usave Car and Truck Rentals.

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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Usave Car and Truck Rentals

Valid Reviews

47 Valid Reviews

The Usave Car and Truck Rentals experience has a total of 48 reviews. There are 47 valid reviews that are included when calculating the ranking score and 1 invalid review 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 47 valid reviews:

Rating Count Percentage
10/10 16
34%
9/10 8
17%
8/10 5
11%
7/10 1
2%
6/10 0
0%
5/10 1
2%
4/10 1
2%
3/10 3
6%
2/10 1
2%
1/10 11
23%

65.96% Average

The raw data average (mean) for all the Usave Car and Truck Rentals valid reviews is 65.96% and is based on 47 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

7 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 47 valid reviews, the experience has 7 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 7 face-to-face reviews:

Rating Count Percentage
10/10 2
29%
9/10 1
14%
8/10 1
14%
7/10 1
14%
6/10 0
0%
5/10 1
14%
4/10 1
14%
3/10 0
0%
2/10 0
0%
1/10 0
0%

75.71% Average

The raw data average (mean) for all the Usave Car and Truck Rentals face-to-face reviews is 75.71% and is based on 7 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

74.67%

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 Face-to-Face Weight Relative Weight
Alberto 10/10 385 days 76.51 100%
Christian 8/10 477 days 60.75 79%
Eric 1/10 538 days 39.52 52%
Keith Powell 9/10 569 days 48.84 64%
Matias 2/10 691 days 23.15 30%
Lisa 9/10 722 days 27.05 35%
Clint Siggins 10/10 842 days 15.14 20%
Tana FARRELL 10/10 965 days 7.68 10%
T-a T 10/10 965 days 7.68 10%
vanessa kelly 10/10 965 days 7.68 10%
Shelley Gunther 10/10 1026 days 5.75 8%
Iain Steven 10/10 1026 days 5.75 8%
Peter 10/10 1056 days 5.24 7%
pbutterworth 1/10 1087 days 3.66 5%
Toby Eadie 1/10 1115 days 3.62 5%
Mia H 10/10 1146 days 4.9 6%
Matt Bridge 1/10 1146 days 3.58 5%
Clif Shaw 10/10 1146 days 4.9 6%
Olga Vogel 9/10 1163 days true 4.87 6%
Murray Coombridge 8/10 1421 days 4.14 5%
Nathan Raymond 8/10 1452 days 4.09 5%
J F 10/10 1512 days 4.18 5%
Raj S 1/10 1543 days 3.01 4%
Toralf Richter 3/10 1573 days 3.13 4%
Stuart Lloyd 9/10 1726 days 3.77 5%
Shirley Jobsis 9/10 1739 days 3.74 5%
vera mokaraka 9/10 1757 days 3.7 5%
Anne Choose not to say 1/10 1818 days 2.62 3%
Alexandra 9/10 1877 days 3.47 5%
Meli Makalio 10/10 1877 days 3.47 5%
Debbie Chambers 8/10 1969 days 3.13 4%
Isabella Chichirua 10/10 1969 days 3.29 4%
sam denyer 1/10 2061 days 2.27 3%
Asha Masr 1/10 2273 days 1.97 3%
MIke Chesney 1/10 2334 days 1.88 2%
Tinkerbell 10/10 2607 days 2.04 3%
IllTakeYouToCourt 1/10 2607 days 1.49 2%
shard 3/10 2638 days 1.52 2%
jessicaelaine 3/10 2638 days 1.52 2%
Melissa Smith 1/10 2638 days 1.45 2%
Chad Johnson 8/10 2922 days true 1.35 2%
Michael Charleston 4/10 2936 days true 1.1 1%
EdS 9/10 3034 days 1.21 2%
Janice OConnor 10/10 3262 days true 0.76 1%
Diane Gedye 5/10 3301 days true 0.55 1%
Maria Fahlander 10/10 4368 days true 0.0 0%
Thorsten Kabelitz 7/10 4368 days true 0.0 0%

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 Usave Car and Truck Rentals experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-6.98% Adjustment

Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner. There may be an adjustment if an experience hasn't received any reviews within the last 60 days.

The Usave Car and Truck Rentals experience has 0 recent rankings. Adjustments are according to the following table:

Recent Reviews Adjustment
0 -3.00%
1 -2.83%
2 -2.33%
3 -1.50%
4 -0.67%
5 -0.17%
6 -0.00%

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 199 days.

The Usave Car and Truck Rentals experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

68%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.