Null effect

Question 1

Null effect

Answer 1

The 95% CI contains zero. Might not cause a difference or true effect is not detected

Question 2

Weak manipulations

Answer 2

Not enough to matter. Insufficient to cause change.

Question 3

Insensitive measures

Answer 3

Not using measurements that have detailed, quantitative increments

Question 4

Ceiling effect

Answer 4

All the scores are squeezed at the high end

Question 5

Floor effect

Answer 5

All the scores are squeezed at the low end

Question 6

Noise (error variance/unsystematic varience)

Answer 6

Too much unsystematic variability within each group. Making it difficult to detect the real difference.