Describe a scenario where you would use a correlational method and an experiment
ID: 3447877 • Letter: D
Question
Describe a scenario where you would use a correlational method and an experimental method to examine one research question. 1. List the overall research question of interest (what are you curious about). 2. What's your hypothesis? 3. What are the operational definitions? Now, describe what each method would look like (what will you do for the correlation and what will you do for the experiment). Be sure to describe each method in as much detail as possible 4. Correlational-what does this look like and what can you conclude from your results 5. Experimental-what does it look like and what are the IV, DV, control and experimental groups. What can you conclude from this research? Why or when would a researcher choose correlational research instead of experimental? 6.Explanation / Answer
group Correlation study:
If The study is about finding whether a relationship exists between intelligence and genetic inherittence, then the correlational method would be most appropriate in probing such research questions as the purpose of research is to find out which variables go together. Since the study deals with the role of heredity in intelligence, the.I would proceed by formulating the hypothesis as: The scores on the intelligence test (The RSPM) are similar between people with the same genetic material than those with dissimilar genes. The study would involve administering an intelligence tests of abstract reasoning to identical twins and fraternal twins, both male and female members of literate societies within the age group of 15-40 years. The comparison between the tests results of identical and fraternal twins would help to establish the role of genes in producing similar IQ scores between identical twins as they have the exact same genetic material while the IQ scores of fraternal twins would be different due to the disismilarity in the genes.
In the study, intelligence is operationally defined in termms of the IQ scores on a standardised Test of abstract reasoning such as the RSPM. The genetic factor is rendered measurable and comparable by taking the sample of identical twins( thus 100% genetic similarity) and fraternal twins ( about 40-70 percent similarity)
Experimental study:
If the research question is ‘ to establish the influence of noise on a test of reading comprehension’, then the experimental method would prove more advantageous as it would help to find the possibility of a causal relationship between the two variables with a high scientific validity.in the study, the hypothesis could be framed as ‘ The increase on the test Performance of reading comprehension task is directly proportional to the increase in noise in thenroom’
To test the hypothesis, the independent variable that is the actual presence of noise stimulation, will be presented to the experimental group and the test scores on the task of reading ability will be the dependent variable or the response which is hypothesised to be affected the introduction of the independent variable. In addition, a baseline control group participants will be administered the test in a quiet noise-free room and their test performance on the same test of reading comprehension will be compared with the experimental group. In addition, intervening variables will be kept constant across the two groups so as to avoid the variation in the results due to these factors rather than the independent variable. Thus factors such as the age of the participants( 15-18 years old participants), gender( both Male and female participants ) , their academic level( high school students only), social background( middle class White, African American, Asian and Hispanic students) will be controlled.