Research Article

Study on Grey Correlation Degree Decision-Making Model for Investment Scheme on High-Grade Highways in Western China

Table 3

Value range of Cronbach’s α.

The evaluation resultsUnacceptableNeed to reviseAcceptableHigh reliability

Value rangeα < 0.70.7 ≤ α < 0.80.8 ≤ α < 0.9α ≥ 0.9