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. 2022 Jun 30;8(7):e09824. doi: 10.1016/j.heliyon.2022.e09824

Table 1.

Description and descriptive statistics of explanatory variables used in the analysis.

Variables Variable description Mean
Mean difference t-value Overall SD
Overall sample Adopters Non-adopters
Socio-economic characteristics
HHSEX 1 if the household head is male, 0 otherwise 0.88 0.89 0.87 -0.02 -0.566 -
HHSIZE Household size (in number) 7.02 7.40 6.64 -0.76 -3.319∗∗∗ 2.34
HHAGE Age of household head (in years) 42.18 41.49 42.86 1.37 1.030 13.42
EDUCHEAD Household head's years of education 3.43 3.21 3.65 0.43 1.303 3.33
EDUCSPOUSE Spouse's years of education 1.65 1.34 1.95 0.61 2.502∗∗ 2.48
FARMEXP Farming experience (in years) 22.73 22.64 22.82 0.18 0.153 11.88
LANDSIZE Total landholding size (in hectare) 1.40 1.67 1.13 -0.53 -4.817∗∗∗ 1.14
LIVSTOCK Total livestock (in tropical livestock unit) 4.22 5.15 3.29 -1.86 -5.339∗∗∗ 3.62
TAV Total value of assets (in ‘000’ Birr) 75.01 96.86 53.37 -43.49 -6.246∗∗∗ 73.19
NONFARM 1 if the household participates in non-farm activity, 0 otherwise 0.26 0.25 0.27 0.02 0.396 -
Institutional factors
CREDIT 1 if the household access credit, 0 otherwise 0.11 0.09 0.13 0.04 1.217 -
SAVING 1 if the household practice saving, 0 otherwise 0.54 0.60 0.47 -0.13 -2.617∗∗ -
EXTFREQ Frequency of extension contact (in days per year) 11.49 16.02 7.00 -9.02 -5.943∗∗∗ 15.89
Parcel characteristics
FERTINDEX Parcel average fertility indexa 0.59 0.57 0.61 0.04 1.217 0.30
SLOPEINDEX Parcel average terrain indexb 0.73 0.71 0.75 0.05 1.960 0.24
EROSIOINDEX Parcel average erosion indexc 0.70 0.69 0.71 0.01 0.544 0.27
Climate characteristics
BELG 1 if the household cultivates in Belgd season, 0 otherwise 0.62 0.62 0.62 0.00 -0.025 -
CCNOTICE 1 if the household noticed climate change during the last 10–15 years, 0 otherwise 0.61 0.73 0.49 -0.24 -5.064∗∗∗ -
SHOCK 1 if the household faces shocks during the last five years, 0 otherwise 0.23 0.21 0.25 0.04 0.886 -
AEZ dummies
HIGHLANDe 1 if the household lives in highland AEZ, 0 otherwise 33.17 0.33 0.33 0.01 0.141 -
MIDLANDe 1 if the household lives in midland AEZ, 0 otherwise 33.66 0.33 0.34 0.01 0.139 -

SD is standard deviation.

a

Farmer ranked each parcel as “poor” (value = 1), “medium” (value = 2) and “fertile” (value = 3).

b

Farmer ranked each parcel as “sloppy” (value = 1), “medium” (value = 2) and “flat” (value = 3).

c

Farmer ranked each parcel as “severe” (value = 1), “moderate” (value = 2) and low (value = 3).

d

Belg is agricultural cultivation season which is equivalent to autumn in southern hemisphere.

e

LOWLAND is the reference category.