Author Question: A researcher selects a quantitative experimental research design. For what reasons does the ... (Read 234 times)

sjones · **on:** Jul 8, 2018

A researcher selects a quantitative experimental research design. For what reasons does the researcher select this particular design? (Select all that apply.)

a. To generate a theory
b. To answer a research question
c. To determine which of several causes is the true one
d. To prove a theory
e. To disprove a hypothesis
f. To determine the strength of the relationship between the independent variable and the dependent variable

Question 2

In a given research study, the findings reveal that as A increases, B also increases, that the relationship is linear, and that the strength of the relationship is 0.78. What type of relationship is this? (Select all that apply.)

a. Positive
b. Negative
c. Inverse
d. None
e. Causational
f. Correlational

poopface · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

ANS: B, F
A research design is a blueprint for maximizing control over factors that could interfere with a study's desired outcome. The choice of research design depends on the researcher's expertise, the problem and purpose for the study, and the desire to generalize the findings. This means that other research in the area must be taken into consideration as well.

Answer to Question 2

ANS: A, F
Correlational research examines a linear relationship between two or more variables and determines the type (positive or negative) and degree (strength) of the relationship. The strength of a relationship varies from 1 (perfect negative correlation) to +1 (perfect positive correlation), with 0 indicating no relationship. The positive relationship indicates that the variables vary togetherthat is, the two variables either increase or decrease together. The negative or inverse relationship indicates that the variables vary in opposite directions; thus, as one variable increases, the other variable decreases.