data analysis in quantitative research?

Question 1

what is the data format in quantitative data?

Answer 1

numerical

Question 2

what in the name of the way quantitative data is displayed and summarised?

Answer 2

descriptive statistics

Question 3

what are 4 different levels of measurement?

Answer 3

nominal, ordinal, interval, ratio

Question 4

which of the 4 levels of measurements have different categories?

Answer 4

all of them

Question 5

which of the 4 levels of measurement have categories that can be ranked?

Answer 5

ordinal, interval and ratio

Question 6

which of the 4 levels of measurement have equal distances between categories?

Answer 6

interval and ratio

Question 7

which of the 4 categories of measurement have a fixed zero?

Answer 7

ratio

Question 8

what are 3 measures of central tendency?

Answer 8

mean, median, mode

Question 9

what is mode frequency?

Answer 9

the most frequent value

Question 10

what is range frequency?

Answer 10

difference between high and low values

Question 11

what is the inter-quartile range?

Answer 11

difference between 20% and 75%

Question 12

what is standard deviation?

Answer 12

subtract mean from each number, mean of remaining values

Question 13

why do we perform statistical analysis?

Answer 13

draw interferences from the sample that we studied about the population of interest

Question 14

what are the two basic approaches to statistical analysis?

Answer 14

hypothesis testing, estimation

Question 15

what is the p value within statistical analysis?

Answer 15

the probability of obtaining the study results if the null hypothesis if the null hypothesis is true

Question 16

what is the meaning behind the p value, when the figure lies between 0 and 1?

Answer 16

the closer it is to 0 the more likely it is the null hypothesis should be rejected

Question 17

statistical significance is set at 5% what does this mean?

Answer 17

p0.05 insufficient evidence to reject the null hypothesis

Question 18

define the power of study?

Answer 18

the probability of being able to detect a difference between study groups

Question 19

what is a confidence interval?

Answer 19

determines whether the results are of clinical significance, it is a measure of accuracy