1. What is internal validity? How do maturation and history relate to threats to internal validity? Explain your answer. 2.What are some pitfalls that may occur prior to the actual collection of data?...

Design of Quantitative Research 1

Running Head: DESIGN OF QUANTITATIVE RESEARCH
Design of Quantitative Research
Design of Quantitative Research 2

Answer: 1
Internal Validity
In the quantitative research, internal validity refers as a scientific study that anxious with the
harshness of the study design. For instance, it diminishes systematic error in a research to make it
effective and appropriate. Along with this, internal validity also establishes a causal relationship
between the variables. It also provides accurate results of the study (Berg & Latin, 2004).
Internal validity also presents the real effect of the independent variable on the dependent
variable. There are a lot of threats of the internal validity such as: maturation, history, regression,
testing, selection, instrumentation, experimental mortality, an interaction of threats, etc. that is
related with it directly and indirectly.
Maturation: The maturation threat of internal validity occurs in that condition when
psychological or biological changes arise within the subjects of the quantitative research. Apart
from this, these changes play a...