Author Question: Operational definitions were used in the early work on psychophysics, but they are rarely used ... (Read 23 times)

lunatika · **on:** Jun 19, 2018

Operational definitions were used in the early work on psychophysics, but they are rarely used today.

Indicate whether the statement is true or false

Question 2

One general concern for within-subjects research is that participation in one treatment condition may influence an individual's scores in a later treatment condition. This creates a threat to internal validity known as order effects.

a. True
b. False
Indicate whether the statement is true or false