definition match up

define these words.

1. Data cleaning

2. Linked data

3. Outliers

4. Net program effect

5. Aggregation

6.Ecological fallacy

7. Skip patterns

8. Spurious finding

answer to choice from:

a. The assumption that group characteristics apply to individuals within the group

b.Systematic nonresponses to items on a questionnaire

c.Checking the data for obvious errors

d. Summarizing data across the participants within one nested unit to create a variable at the unit level of analysis

e. A result that is incidental to the evaluation question or that is an artifact of the factors that are not understood

f. The degree of intervention effect on participants compared to the effect on the comparison group

g. The data set that results from collecting data from more than one source

h. Variables with reasonable and plausible but extraordinary values