Data analysis

Question 1

-the use of statistical tools to address the research questions or objectives
-can be descriptive or inferential

Answer 1

DATA ANALYSIS

Question 2

singel value that attempts to describe a set of data by identifying the central position within that set of data

Answer 2

Measures of Central Tendency

Question 3

-used to find the average of ratio and interval scale data
-the sum of all the values in the data set divided by the number of values in the data set

Answer 3

MEAN

Question 4

the middle value or score for a set of data that hss been arranged in order of magnitude

Answer 4

MEDIAN

Question 5

-the most frequent score in a data set
-on a histogram, it represents the highest bar
-used for categorical data
-often coupled with percentage

Answer 5

MODE

Question 6

-describes the variability in a sample or population
-used in conjunction with the mean or median to provide an overall description of the data

Answer 6

MEASURES OF DISPERSION/SPREAD

Question 7

-the difference between the highest and lowest scores in a data set
-the simplest measure of spread

Answer 7

Range

Question 8

-more representative idea of spread since it takes into account all scores
-shows the amoubt of deviation (variation) around the mean

Answer 8

STANDARD DEVIATION

Question 9

-square of the standard deviation
-created to get rid of negative values from the SD

Answer 9

VARIANCE

Question 10

-interval or ratio scales
-sample size is > 30 (per group)
-normally distributed data (Normality Tests, Kurtosis, Skewness)

Answer 10

PARAMETRIC TEST

Question 11

-ordinal or nominal scales
-sample size is < 30 (per group)
-not normally distributed data

Answer 11

NON-PARAMETRIC TEST