Strong Evidence of a Treatment Effect in a Time Series

question 16

Multiple Choice

Strong evidence of a treatment effect in a time series with nonequivalent control group design is indicated by

• A)discontinuity in neither the treatment group nor the comparison group.
• B)discontinuity in both the treatment group and the comparison group.
• C)discontinuity in the comparison group but not in the treatment group.
• D)discontinuity in the treatment group but not in the comparison group.

---

Definitions:

Unequal-variances T-test

A statistical test used for comparing the means of two groups that do not have the same variance.

Non-integer Number

A value that is not a whole number, including fractions, decimals, and irrational numbers.

Two-tailed Test

A statistical hypothesis test in which the area of rejection is on both sides of the sampling distribution, allowing for the possibility of an effect in two directions.

Independent Populations

Populations in which the outcomes or characteristics of a sample from one population are not affected by the outcomes or characteristics of a sample from another population.