Develop a Research Question to Compare Two Independent Means: In your area of psychology, which is Autism/Applied Behavior Analysis, formulate a research question that can be addressed using an
independent samples t-test. Write down your question and why you feel that it is appropriate for an independent samples t-test. State your null hypothesis and your alternative hypothesis.
What is your research question?
Does the gender of children make a difference in the expression of autism traits and the formal diagnosis of the condition?
What is your null hypothesis?
Autism traits and formal diagnosis in girls = autism traits and formal diagnosis in boys
What is your alternative (research) hypothesis?
Autism traits and formal diagnosis in girls ≠ autism traits and formal diagnosis in boys
What is your dependent variable?
Autism traits
What is your independent variable?
The sex of children:
a) Girls
b) Boys
Why is an independent samples t-test appropriate for this research question?
The independent samples t-test is appropriate for this research question because the study seeks to establish if there is a difference in the expression of autism traits and not to determine if
boys express the characteristics in a bigger way than girls.
d. Predict Results: For your research question comparing two independent means in part C, would you expect to reject your null hypothesis? Select a level for alpha and a possible p-value that
justify rejecting the null. Write a conclusion assuming that you have rejected the null and concluded the population means are not the same.
p value is 0.0223
The p value < 0.05 which indicates that there is an unequal variance of the groups and thus the null is rejected.
The results indicate that there is a significant difference between the expression of autism traits in girls and boys. The mean expression rates for girls is lower than that of boys and that is why
the formal diagnosis is more possible in boys than in girls.
Need help with this Essay/Dissertation?
Get in touch Essay & Dissertation Writing services

