MARKET STUDY All analysis covers resale homes only. New construction appears once, in its own section. Click any dot on the map for that sale.
Resale sales, 365 days
20
single-family resale homes
Median net sale price
$306,150
average $305,272
Median net price per SF
$161
average $164
Median days on market
40 days
average 72 days
1. SummaryResale homes · 20 sales · October 26, 2025 – October 25, 2026
This study looks at the 20 resale homes sold in Pecan Park in the 365 days to October 25, 2026. A full year is used because only 14 resale homes sold in the last 180 days. New construction is left out and shown on its own in section 7. The homes are compared four ways: by price, by living area, by year built and with or without a view. The first three are split into four equal groups (quartiles), each named by its range.
Each comparison has its own section (3–6) with everything about it in one place: the key differences, a table of every measure at a glance, the charts and the numbers.
2. Where the resale homes sold20 resale homes · colored by price range
Each dot is one resale home, colored by its price range. Use the buttons to show one price range at a time. Click a dot for that sale: address, close date, original and last list price, net sale price, living area, net sale per SF and days on market. Scroll or pinch to zoom.
3. Quartiles by net sale priceResale homes · 20 sales · October 26, 2025 – October 25, 2026
Sales ranked by net sale price and cut into four equal groups. This is the usual way to read a market by price.
Bottom line: too few sales to test.
3.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
How to read this section. Each heading gives the finding. The gold box says whether the gap is real (✓, with its size) or could be chance (–). The section ends with its numbers; the tests are in section 8.3.
3.3 Net price per SF: described, not tested
The average is $153 per SF for homes over $330K and $168 per SF for homes under $270K. It does not move in a straight line; homes $270K–$305K are highest. Defined in 8.1.2.
Not tested: too few sales.
3.4 Living area: described, not tested
The average is 2,312 SF for homes over $330K and 1,544 SF for homes under $270K. It rises step by step from the lowest range to the highest. Defined in 8.1.3.
Not tested: too few sales.
3.5 Year built: described, not tested
The median is 2017 for homes over $330K and 2021 for homes under $270K. It falls step by step from the lowest range to the highest. Defined in 8.1.4.
Not tested: too few sales.
3.6 Days on market: described, not tested
The median is 40 days for homes over $330K and 32 days for homes under $270K. It does not move in a straight line; homes $307K–$330K are highest. Defined in 8.1.5.
Not tested: too few sales.
3.7 Discount from original list: described, not tested
The average is 4.9% for homes over $330K and 9.5% for homes under $270K. It does not move in a straight line; homes under $270K are highest. Defined in 8.1.6.
Not tested: too few sales.
3.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
40% of homes over $330K had a price cut before sale, against 75% of homes under $270K. Defined in 8.1.7.
40% of homes over $330K had the seller pay closing costs or repairs, against 50% of homes under $270K. Defined in 8.1.8.
40% of homes over $330K have a view, against 0% of homes under $270K. Defined in 8.1.9.
Price cut before sale: Not tested: too few sales.
Seller paid closing costs or repairs: Not tested: too few sales.
Has a view: Not tested: too few sales.
3.9 The numbers: price and size
Under $270K4 sales
$270K–$305K6 sales
$307K–$330K5 sales
Over $330K5 sales
All20 sales
Net sale price average
$259,125
$287,642
$317,260
$351,360
$305,272
Net price per SF average
$168
$169
$167
$153
$164
Living area average
1,544
1,746
1,925
2,312
1,892
Year built median
2021
2021
2020
2017
2020
3.10 The numbers: selling
Under $270K4 sales
$270K–$305K6 sales
$307K–$330K5 sales
Over $330K5 sales
All20 sales
Days on market median
32
52
60
40
40
Discount from original list average
9.5%
5.3%
7.3%
4.9%
6.5%
Price cut before sale
75%
50%
40%
40%
50%
Seller paid closing costs or repairs
50%
50%
80%
40%
55%
Has a view
0%
0%
20%
40%
15%
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.1.
4. Quartiles by living areaResale homes · 20 sales · October 26, 2025 – October 25, 2026
Sales ranked by living area and cut into four equal groups, from the smallest homes to the largest.
Bottom line
Homes over 2,182 SF sell for about $87K (33%) more than homes under 1,566 SF.
4.1 Key differences
The top group against the bottom group. Only real differences are listed. Section 8 explains each measure.
Under 1,566 SF1,566–1,736 SF1,993–2,182 SFOver 2,182 SF
Larger homes Over 2,182 SF
Sell for much more.
Smaller homes Under 1,566 SF
Sell for much less.
4.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Under 1,566 SF
1,566–1,736 SF
1,993–2,182 SF
Over 2,182 SF
Real difference?
Net sale price
$262KLowest
$299K
$310K
$349KHighest
✓ large
Net price per SF
$178 per SF
$181 per SF
$149 per SF
$149 per SF
unclear
Year built
2021
2020
2021
2020
unclear
Days on market
25 days
73 days
32 days
60 days
unclear
Discount from original list
7.1%
9.0%
5.0%
5.0%
unclear
Price cut before sale
60%
60%
40%
40%
unclear
Seller paid closing costs or repairs
40%
40%
80%
60%
unclear
Has a view
0%
0%
20%
40%
unclear
4.3 Homes over 2,182 SF sell for about $87K (33%) more than homes under 1,566 SF
The average is $349K for homes over 2,182 SF and $262K for homes under 1,566 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.1.
✓ Real difference · large
4.4 Net price per SF: no clear difference
The average is $149 per SF for homes over 2,182 SF and $178 per SF for homes under 1,566 SF. It does not move in a straight line; homes 1,566–1,736 SF are highest. Defined in 8.1.2.
– No clear difference · could be chance
4.5 Year built: no clear difference
The median is 2020 for homes over 2,182 SF and 2021 for homes under 1,566 SF. It does not move in a straight line; homes under 1,566 SF are highest. Defined in 8.1.4.
– No clear difference · could be chance
4.6 Days on market: no clear difference
The median is 60 days for homes over 2,182 SF and 25 days for homes under 1,566 SF. It does not move in a straight line; homes 1,566–1,736 SF are highest. Defined in 8.1.5.
– No clear difference · could be chance
4.7 Discount from original list: no clear difference
The average is 5.0% for homes over 2,182 SF and 7.1% for homes under 1,566 SF. It does not move in a straight line; homes 1,566–1,736 SF are highest. Defined in 8.1.6.
– No clear difference · could be chance
4.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
40% of homes over 2,182 SF had a price cut before sale, against 60% of homes under 1,566 SF. Defined in 8.1.7.
60% of homes over 2,182 SF had the seller pay closing costs or repairs, against 40% of homes under 1,566 SF. Defined in 8.1.8.
40% of homes over 2,182 SF have a view, against 0% of homes under 1,566 SF. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
4.9 The numbers: price and size
Under 1,566 SF5 sales
1,566–1,736 SF5 sales
1,993–2,182 SF5 sales
Over 2,182 SF5 sales
All20 sales
Real difference?
Net sale price average
$262,300
$299,460
$310,070
$349,260
$305,272
✓ large
Net price per SF average
$178
$181
$149
$149
$164
unclear
Living area average
1,471
1,662
2,084
2,351
1,892
by design
Year built median
2021
2020
2021
2020
2020
unclear
4.10 The numbers: selling
Under 1,566 SF5 sales
1,566–1,736 SF5 sales
1,993–2,182 SF5 sales
Over 2,182 SF5 sales
All20 sales
Real difference?
Days on market median
25
73
32
60
40
unclear
Discount from original list average
7.1%
9.0%
5.0%
5.0%
6.5%
unclear
Price cut before sale
60%
60%
40%
40%
50%
unclear
Seller paid closing costs or repairs
40%
40%
80%
60%
55%
unclear
Has a view
0%
0%
20%
40%
15%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.2.
5. Groups by year builtResale homes · 20 sales · October 26, 2025 – October 25, 2026
Sales ranked by year built and cut into four groups, from the oldest to the newest. Homes built in the same year always stay in the same group, so group sizes can differ a little. Only 3 groups are shown: homes here share a few year built values, and no group may hold fewer than 3 sales.
Bottom line: no measure differs enough between the groups to rule out chance.
5.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
5.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
Before 2020
2020
After 2020
Real difference?
Net sale price
$337K
$301K
$290K
unclear
Net price per SF
$165 per SF
$170 per SF
$160 per SF
unclear
Living area
2,074 SF
1,797 SF
1,854 SF
unclear
Days on market
40 days
53 days
32 days
unclear
Discount from original list
4.8%
7.4%
6.9%
unclear
Price cut before sale
20%
50%
67%
unclear
Seller paid closing costs or repairs
20%
83%
56%
unclear
Has a view
20%
17%
11%
unclear
5.3 Net sale price: no clear difference
The average is $290K for homes built after 2020 and $337K for homes built before 2020. It falls step by step from the lowest range to the highest. Defined in 8.1.1.
– No clear difference · could be chance
5.4 Net price per SF: no clear difference
The average is $160 per SF for homes built after 2020 and $165 per SF for homes built before 2020. It does not move in a straight line; homes built 2020 are highest. Defined in 8.1.2.
– No clear difference · could be chance
5.5 Living area: no clear difference
The average is 1,854 SF for homes built after 2020 and 2,074 SF for homes built before 2020. It does not move in a straight line; homes built before 2020 are highest. Defined in 8.1.3.
– No clear difference · could be chance
5.6 Days on market: no clear difference
The median is 32 days for homes built after 2020 and 40 days for homes built before 2020. It does not move in a straight line; homes built 2020 are highest. Defined in 8.1.5.
– No clear difference · could be chance
5.7 Discount from original list: no clear difference
The average is 6.9% for homes built after 2020 and 4.8% for homes built before 2020. It does not move in a straight line; homes built 2020 are highest. Defined in 8.1.6.
– No clear difference · could be chance
5.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
67% of homes built after 2020 had a price cut before sale, against 20% of homes built before 2020. Defined in 8.1.7.
56% of homes built after 2020 had the seller pay closing costs or repairs, against 20% of homes built before 2020. Defined in 8.1.8.
11% of homes built after 2020 have a view, against 20% of homes built before 2020. Defined in 8.1.9.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
Has a view: – No clear difference · could be chance
5.9 The numbers: price and size
Before 20205 sales
20206 sales
After 20209 sales
All20 sales
Real difference?
Net sale price average
$336,960
$301,050
$290,483
$305,272
unclear
Net price per SF average
$165
$170
$160
$164
unclear
Living area average
2,074
1,797
1,854
1,892
unclear
Year built median
2016
2020
2021
2020
by design
5.10 The numbers: selling
Before 20205 sales
20206 sales
After 20209 sales
All20 sales
Real difference?
Days on market median
40
53
32
40
unclear
Discount from original list average
4.8%
7.4%
6.9%
6.5%
unclear
Price cut before sale
20%
50%
67%
50%
unclear
Seller paid closing costs or repairs
20%
83%
56%
55%
unclear
Has a view
20%
17%
11%
15%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.3.
6. View and no viewResale homes · 20 sales · October 26, 2025 – October 25, 2026
Sales where the MLS lists a view (greenbelt or park, trees, golf course, hill country, water and similar) against those listing none or only the neighborhood.
Bottom line: too few sales to test.
6.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
6.3 Net sale price: described, not tested
The average is $338K for homes with a view and $299K for homes without a view. Defined in 8.1.1.
Not tested: too few sales.
6.4 Net price per SF: described, not tested
The average is $149 per SF for homes with a view and $167 per SF for homes without a view. Defined in 8.1.2.
Not tested: too few sales.
6.5 Living area: described, not tested
The average is 2,289 SF for homes with a view and 1,822 SF for homes without a view. Defined in 8.1.3.
Not tested: too few sales.
6.6 Year built: described, not tested
The median is 2020 for homes with a view and 2020 for homes without a view. Defined in 8.1.4.
Not tested: too few sales.
6.7 Days on market: described, not tested
The median is 32 days for homes with a view and 40 days for homes without a view. Defined in 8.1.5.
Not tested: too few sales.
6.8 Discount from original list: described, not tested
The average is 5.1% for homes with a view and 6.8% for homes without a view. Defined in 8.1.6.
Not tested: too few sales.
6.9 How often: price cut before sale, seller paid closing costs or repairs
Each bar is the share of homes in the group, in percent.
33% of homes with a view had a price cut before sale, against 53% of homes without a view. Defined in 8.1.7.
100% of homes with a view had the seller pay closing costs or repairs, against 47% of homes without a view. Defined in 8.1.8.
Price cut before sale: Not tested: too few sales.
Seller paid closing costs or repairs: Not tested: too few sales.
6.10 The numbers: price and size
View3 sales
No view17 sales
All20 sales
Net sale price average
$338,267
$299,450
$305,272
Net price per SF average
$149
$167
$164
Living area average
2,289
1,822
1,892
Year built median
2020
2020
2020
6.11 The numbers: selling
View3 sales
No view17 sales
All20 sales
Days on market median
32
40
40
Discount from original list average
5.1%
6.8%
6.5%
Price cut before sale
33%
53%
50%
Seller paid closing costs or repairs
100%
47%
55%
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.4.
7. New constructionBasic statistics · 0 sales · October 26, 2025 – October 25, 2026
Homes sold new by the builder in the same 365 days. They are left out of every other section and shown here as basic figures only: 0 sales, no groups, no tests.
Note: these are only the new-construction sales reported in ABOR MLS. Builders often sell homes without listing them in the MLS, so these figures do not necessarily represent all new-construction sales in Pecan Park.
No new-construction sales were reported in ABOR MLS in this window.
Same definitions as the rest of the study (section 8). New construction = NewConstructionYN true, or PropertyCondition “New Construction” or “Under Construction”.
8. AppendixMeasures, methods and tests
Each measure and method three ways: in plain words, as statistics, and with the data from this study.
8.1 Measures
8.1.1 Net sale price
In simple terms
What the seller actually kept: the closing price, less money the seller gave back to the buyer for closing costs or repairs. It is the truest price for comparing homes.
Statistically
Net = ClosePrice − ACTRIS_BuyersClsgCostPdbySell − ACTRIS_RepairsAmount (a blank counts as $0). Summarized by the arithmetic mean in the slices.
The data
20 resale sales. Average $305,272; median $306,150; standard deviation $36,106; middle half (25th–75th percentile) $270,000–$329,625; lowest $237,000, highest $370,000. 11 sales had a seller payment; their median payment was $5,200.
8.1.2 Net price per SF
In simple terms
Net sale price divided by the heated and cooled square feet. It puts homes of different sizes on the same footing: did buyers pay more for each square foot, not just for more square feet?
Statistically
psf = Net ÷ LivingArea, per sale; summarized by the mean of the per-sale ratios.
The data
20 resale sales. Average $164; median $161; standard deviation $20; middle half (25th–75th percentile) $152–$183; lowest $135, highest $195.
8.1.3 Living area
In simple terms
The heated and cooled space, as listed in the MLS. Garages and porches are not counted.
Statistically
RESO LivingArea, in square feet. Sales under 400 SF are treated as entry errors and left out.
The data
20 resale sales. Average 1,892; median 1,864; standard deviation 370; middle half (25th–75th percentile) 1,555–2,183; lowest 1,448, highest 2,653.
8.1.4 Year built
In simple terms
The year the home was finished, as listed in the MLS. It shows whether a group leans to older or newer phases of the community.
Statistically
RESO YearBuilt; summarized by the median, with the 25th–75th percentile (middle half) on the charts.
The data
20 resale sales. Average 2020; median 2020; standard deviation 2; middle half (25th–75th percentile) 2019–2021; lowest 2016, highest 2023.
8.1.5 Days on market
In simple terms
How many days the home was on the market before the buyer's offer was accepted, counting any earlier listing periods (relists). This is the days on market agents and clients quote.
Statistically
CDOM = max(CumulativeDaysOnMarket, DaysOnMarket, PurchaseContractDate − ListingContractDate). The MLS counter can freeze at a price change, so the contract-date gap is a floor. Summarized by the median, because a few homes that sat for months pull an average up.
The data
20 resale sales. Average 72; median 40; standard deviation 86; middle half (25th–75th percentile) 16–82; lowest 0, highest 330. 2 sales went under contract on their listing date (0 days).
8.1.6 Discount from original list
In simple terms
How far below the first asking price the home sold, after seller payments. It measures how much negotiating room sellers gave up. A negative figure means the home sold above its first asking price.
Statistically
Discount % = (OriginalListPrice − Net) ÷ OriginalListPrice × 100, per sale; summarized by the mean.
The data
20 resale sales. Average 6.5%; median 6.5%; standard deviation 4.1%; middle half (25th–75th percentile) 3.2%–9.8%; lowest 0.7%, highest 14.5%. 0 sales closed above their first asking price.
8.1.7 Price cut before sale
In simple terms
The asking price was lowered at least once before the home went under contract.
Statistically
Indicator: ListPrice at close < OriginalListPrice. Reported as the share of sales (%).
The data
10 of 20 resale sales (50.0%).
8.1.8 Seller paid closing costs or repairs
In simple terms
The seller paid some of the buyer's closing costs or repairs.
Statistically
Indicator: ACTRIS_BuyersClsgCostPdbySell + ACTRIS_RepairsAmount > 0. Reported as the share of sales (%).
The data
11 of 20 resale sales (55.0%).
8.1.9 Has a view
In simple terms
The MLS says the home looks over something: a greenbelt or park, trees, golf course, hill country, water and similar.
Statistically
View = the View field holds any entry other than “None”, “Neighborhood” or “See Remarks”. No view = only “None” and/or “Neighborhood”. A record whose only entry is “See Remarks” cannot be classified and is left out of the view slice.
The data
3 sales with a view, 17 without, 0 unclassified. Most common View entries: None 10, Neighborhood 9, Trees/Woods 2, Park/Greenbelt 2.
8.2 Methods
8.2.1 Data source
In simple terms
Every figure comes from the Austin Board of REALTORS® MLS, read live by ALEX. No figure is estimated or typed in.
Statistically
Bridge Interactive RESO Web API (OData), ABOR dataset, every field returned. Filter: StandardStatus = Closed, PropertyType = Residential, City = Bastrop, SubdivisionName contains any of “pecan park”, “pecan park residential” (case-insensitive). A record is kept when its subdivision name belongs to the Pecan Park family, the same rule comparable sales use (it includes Pecan Park Residential Sec, proven adjacent and priced alike).
The data
Pulled October 26, 2026: 20 closed Pecan Park records over the prior year, in ZIP 78602. 9 subdivision spellings kept: Pecan Park Residential Sec (7); Pecan Park (5); Pecan Park Sec 1A (2); PECAN PARK (1); Pecan Park Residential Sec 5B (1); PECAN PARK Section 7 (1); Pecan Park Sec 3F (1); Pecan Park Sec 1B (1); Pecan Park Sec 7 (1). Names found by the search but not part of Pecan Park, left out: Final Plat/Pecan Park Sec 7 (1); Final Plat/Pecan Park Sec 1B (1).
8.2.2 Study window
In simple terms
The most recent 365 days of closed sales: recent enough to describe today's market, long enough to give each group plenty of sales. The usual window is 180 days; it holds only 14 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from October 26, 2025 to October 25, 2026 inclusive.
The data
20 single-family sales in the window: 20 resale, 0 new construction.
8.2.3 Resale and new construction
In simple terms
A resale home was previously owned. New construction is sold by the builder and behaves differently, so it is kept out of every analysis and reported once on its own.
Statistically
New construction = NewConstructionYN true, or PropertyCondition contains “New Construction” or “Under Construction”. Everything else is resale.
The data
20 resale; 0 new construction.
8.2.4 Sales left out
In simple terms
A few records cannot be used as entered and are left out before any analysis.
Statistically
Excluded: PropertySubType other than Single Family Residence; no OriginalListPrice; LivingArea under 400 SF; seller payments above 10% of ClosePrice (treated as entry errors).
The data
None in this window.
8.2.5 Quartiles and groups
In simple terms
Sales lined up from lowest to highest and cut into four groups of about equal size. Each group is named by its range, for example “Under $270K”.
Statistically
Sort by the slicing variable; cut k sits at round(nk/4), k = 1…3. A cut that would split tied values moves to the nearer edge of the tie. A group under 3 sales merges into its smaller neighbor. Range names use the next group's lowest value (“Under”) and the previous group's highest value (“Over”/“After”).
The data
Quartiles by net sale price: Under $270K: $237,000–$269,499 (4 sales); $270K–$305K: $270,000–$305,000 (6 sales); $307K–$330K: $307,300–$329,500 (5 sales); Over $330K: $330,000–$370,000 (5 sales) Quartiles by living area: Under 1,566 SF: 1,448–1,522 SF (5 sales); 1,566–1,736 SF: 1,566–1,736 SF (5 sales); 1,993–2,182 SF: 1,993–2,182 SF (5 sales); Over 2,182 SF: 2,186–2,653 SF (5 sales) Groups by year built: Before 2020: 2016–2017 (5 sales); 2020: 2020–2020 (6 sales); After 2020: 2021–2023 (9 sales) View and no view: View: MLS lists a view (3 sales); No view: None or Neighborhood (17 sales)
8.2.6 Average and median
In simple terms
The average adds the values and divides by how many; one very expensive home can pull it up. The median is the middle value, with half above and half below.
Statistically
Mean x̄ = (1/n) Σ xᵢ; median = 50th percentile. Price, price per SF, living area and discount use the mean; days on market and year built use the median (skewed or whole-year values).
The data
Net sale price: average $305,272, median $306,150. Days on market: average 72, median 40: the average is pulled up by a few long listings.
8.2.7 Kruskal–Wallis test
In simple terms
Checks whether a measure really differs across the four groups of a slice. It uses each sale's rank, not its value, so a few extreme sales cannot drive the answer.
Statistically
H = [12/(n(n+1))] Σ Rⱼ²/nⱼ − 3(n+1), compared with χ² on k − 1 degrees of freedom (Kruskal & Wallis, 1952). Effect size ε² = H/(n − 1): ≥ .01 small, ≥ .06 medium, ≥ .14 large (Tomczak & Tomczak, 2014). A slice is tested only when every group has at least 5 sales; smaller groups are described, not tested.
The data
Run on every measure in sections 3–5; each result is in 8.3.
8.2.8 Mann–Whitney U test
In simple terms
The same check when there are only two groups: view against no view.
Statistically
Two-sided U test (Mann & Whitney, 1947). Effect size = rank-biserial correlation |1 − 2U/(n₁n₂)|: ≥ .10 small, ≥ .30 medium, ≥ .50 large (Kerby, 2014; Cohen, 1988).
The data
Run on every measure in section 6; results in 8.3.
8.2.9 Chi-square test
In simple terms
Checks whether a yes/no share (price cut, seller payment, view) differs between groups more than chance would.
Statistically
Pearson χ² on the 2 × k table of counts, no continuity correction (Pearson, 1900). Effect size Cramér's V = √(χ²/n): ≥ .10 small, ≥ .30 medium, ≥ .50 large (Cramér, 1946).
The data
Run on the three shares in every slice; results in 8.3.
8.2.10 Real difference (significance)
In simple terms
“Real difference” means a gap this large would be very unlikely if the groups were really alike. Because many measures are checked in each slice, the bar is set higher than usual.
Statistically
Significant when p < 0.05 ÷ m, where m is the number of measures tested in that slice (Bonferroni; Dunn, 1961). The slicing variable itself differs by design and is not tested.
The data
Quartiles by living area: m = 8, threshold p < 0.0063; Groups by year built: m = 8, threshold p < 0.0063
8.2.11 Size of a difference
In simple terms
A difference can be real but small. The size word (small, medium, large) says how much the groups pull apart.
Statistically
ε² for Kruskal–Wallis, rank-biserial r for Mann–Whitney, Cramér's V for chi-square, with the thresholds above; below the small threshold the size is “negligible”.
The data
1 real differences across the four slices; sizes are listed in 8.3.
8.2.12 Rounding in the text
In simple terms
Headings and sentences round figures so they read easily; the tables at the end of each section give them in full.
Statistically
Prices in headings round to the nearest $1K; price per SF and days on market to the nearest whole number; living area to the nearest 10 SF; shares and percentage gaps to whole percents.
The data
Days on market is always shown in days.
8.3 Test results
Every test behind every gold box. Statistic, degrees of freedom (df), p-value, the threshold it must beat, and the size of the difference.
8.3.1 Quartiles by net sale price
Too few sales in a group to test.
8.3.2 Quartiles by living area
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 13.81
3
0.0032
p < 0.0063
Yes
ε² = 0.727
large
Net price per SF
Kruskal–Wallis
H = 10.59
3
0.0142
p < 0.0063
Unclear
ε² = 0.557
large
Year built
Kruskal–Wallis
H = 8.20
3
0.0420
p < 0.0063
Unclear
ε² = 0.432
large
Days on market
Kruskal–Wallis
H = 2.51
3
0.4729
p < 0.0063
Unclear
ε² = 0.132
medium
Discount from original list
Kruskal–Wallis
H = 3.41
3
0.3324
p < 0.0063
Unclear
ε² = 0.180
large
Price cut before sale
Chi-square
χ² = 0.80
3
0.8495
p < 0.0063
Unclear
Cramér’s V = 0.200
small
Seller paid closing costs or repairs
Chi-square
χ² = 2.22
3
0.5276
p < 0.0063
Unclear
Cramér’s V = 0.333
medium
Has a view
Chi-square
χ² = 4.31
3
0.2295
p < 0.0063
Unclear
Cramér’s V = 0.464
medium
8.3.3 Groups by year built
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Kruskal–Wallis
H = 5.49
2
0.0642
p < 0.0063
Unclear
ε² = 0.289
large
Net price per SF
Kruskal–Wallis
H = 0.95
2
0.6213
p < 0.0063
Unclear
ε² = 0.050
small
Living area
Kruskal–Wallis
H = 1.66
2
0.4352
p < 0.0063
Unclear
ε² = 0.088
medium
Days on market
Kruskal–Wallis
H = 1.12
2
0.5724
p < 0.0063
Unclear
ε² = 0.059
small
Discount from original list
Kruskal–Wallis
H = 1.48
2
0.4780
p < 0.0063
Unclear
ε² = 0.078
medium
Price cut before sale
Chi-square
χ² = 2.80
2
0.2466
p < 0.0063
Unclear
Cramér’s V = 0.374
medium
Seller paid closing costs or repairs
Chi-square
χ² = 4.42
2
0.1096
p < 0.0063
Unclear
Cramér’s V = 0.470
medium
Has a view
Chi-square
χ² = 0.22
2
0.8968
p < 0.0063
Unclear
Cramér’s V = 0.104
small
8.3.4 View and no view
Too few sales in a group to test.
8.4 Data notes
Left out of the analysis: 0 new-construction sales (basic statistics only, section 7); nothing else. Statistics: Python, NumPy 2.5.3, SciPy 1.18.1.
8.5 References
Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Erlbaum.
Cramér, H. (1946). Mathematical Methods of Statistics. Princeton University Press.
Dunn, O. J. (1961). Multiple comparisons among means. JASA, 56(293), 52–64.
Kerby, D. S. (2014). The simple difference formula: an approach to teaching nonparametric correlation. Comprehensive Psychology, 3, 11.IT.3.1.
Kruskal, W. H., & Wallis, W. A. (1952). Use of ranks in one-criterion variance analysis. JASA, 47(260), 583–621.
Mann, H. B., & Whitney, D. R. (1947). On a test of whether one of two random variables is stochastically larger than the other. Annals of Mathematical Statistics, 18(1), 50–60.
Pearson, K. (1900). On the criterion that a given system of deviations… Philosophical Magazine, 50(302), 157–175.
Tomczak, M., & Tomczak, E. (2014). The need to report effect size estimates revisited. Trends in Sport Sciences, 21(1), 19–25.