MODULE 13 Flashcards
______ is computed to determine the proportion of a part to a whole such as a given number of respondents in relation to the entire population.
Percentage (P)
____ is used to determine the order of decreasing or increasing magnitude of variables. The largest frequency is ranked 1, the second 2, and so on down to the last____
Ranking
______ refers to the overall average or responses/perceptions of the study respondents. It is the sum of the scores and its product
Weighted mean (WM)
describes the central tendency of the given criteria variables. All the numbers in a series added together and divided by the number of numbers in a series.
Arithmetic mean or average weighted mean (X)
means central position Arranges the ratings in an array from highest to lowest or vice-versa.
Median
is the score which has the most number of observations or responses. The most frequently occurring values in a series of numbers where more than one value equally shares the highest number of frequencies, and then the data are said to be multimodal
Mode
This is used to indicate the chance that researchers are wrong in rejecting the null hypothesis. It is also called the
level of probability or p level
the research prediction that is tested
Research Hypothesis
a statement of “no difference between the means of two populations
Null hypothesis
____ is made when a researcher rejects the null hypothesis when it is true.
type I error
A _____ is made when a researcher accepts the null hypothesis when it is false
type II error
Researchers generally look for levels of significance ______
equal to or less than .05
This is used when the researcher can assume that the population values are normaly distributed, variances are equal and data are interval or ratio in scale
Parametric Tests
It is the most common statistical procedure for determining the level of significance when two means are compared. It generates a number that is used to determine the p-level of rejecting the null hypothesis and assumes equal variability in both data sets
t-test
Similar to a t-test out used when there are more than two groups being compared,
Analysis of variance