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What is experimental correlation and natural correlation?
the correlations we observe in the world around us
Which one of the following method serve to measure correlation bw two variable?
cofficient of rank correlation
What are the different ways in gathering data in statistics?
1. Direct Interview/Interviewing 2. Indirect/Questionnaire -->used in researching 3. Registration Method 4. Experimental Method
Spearman-Brown formula ptherwise called as split half method?
not otherwise....split half method is one way of determining reliability of your test and Spearman-Brown formula is a technique used to re-calculate the correlation of your test when you split your test items into half.... this means that the result of Spearman-Brown provides you the correlation of your test in full length.
What is a sample correlation?
If measurements are taken for two (or more) variable for a sample , then the correlation between the variables are the sample correlation. If the sample is representative then the sample correlation will be a good estimate of the true population correlation.
