Identify the threats with the type of validity they threaten
$$\begin{array} { | l | l | }
\hline \text { 1. Pretest effects } & \text { a. Intermal validity } \
\hline \text { 2. History } & \text { b. Extermal validity } \
\hline \text { 3. Reactivity } & \
\hline \text { 4. Self-selection } & \
\hline \text { 5. Maturation } & \
\hline \text { 6. Irstrumentation } & \
\hline \text { 7. Experimenter bias } & \
\hline \text { 8.Multiple-treatrnentiriterference } & \
\hline \text { 9. Statistical repression } & \
\hline \text { 10. Experimental mortality } & \
\hline
\end{array}$$

Question

Identify the threats with the type of validity they threaten
 $$\begin{array} { | l | l | } 
\hline \text { 1. Pretest effects } & \text { a. Intermal validity } \
\hline \text { 2. History } & \text { b. Extermal validity } \
\hline \text { 3. Reactivity } & \
\hline \text { 4. Self-selection } & \
\hline \text { 5. Maturation } & \
\hline \text { 6. Irstrumentation } & \
\hline \text { 7. Experimenter bias } & \
\hline \text { 8.Multiple-treatrnentiriterference } & \
\hline \text { 9. Statistical repression } & \
\hline \text { 10. Experimental mortality } & \
\hline
\end{array}$$

Quizplus · Accepted Answer

The Answer of Identify the threats with the type of validity they threaten
 $$\begin{array} { | l | l | } 
\hline \text { 1. Pretest effects } & \text { a. Intermal validity } \
\hline \text { 2. History } & \text { b. Extermal validity } \
\hline \text { 3. Reactivity } & \
\hline \text { 4. Self-selection } & \
\hline \text { 5. Maturation } & \
\hline \text { 6. Irstrumentation } & \
\hline \text { 7. Experimenter bias } & \
\hline \text { 8.Multiple-treatrnentiriterference } & \
\hline \text { 9. Statistical repression } & \
\hline \text { 10. Experimental mortality } & \
\hline
\end{array}$$

Identify the Threats with the Type of Validity They Threaten