indexVariability: Calculate 'variability' of a grid as defined by Slater (1977).

Description

Variability records a tendency for the responses to gravitate towards both end of the gradings scale. (Slater, 1977, p.88).

indexVariability(x, min, max, digits = 2)

repgrid object.

min

Minimum grid scale value.

max

Maximum grdi scale value.

digits

Numeric. Number of digits to round to (default is 2).

Numeric.

Slater, P. (1977). The measurement of intrapersonal space by Grid technique. London: Wiley.