MODULE 13

Question 1

______ 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.

Answer 1

Percentage (P)

Question 2

____ 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____

Answer 2

Ranking

Question 3

______ refers to the overall average or responses/perceptions of the study respondents. It is the sum of the scores and its product

Answer 3

Weighted mean (WM)

Question 4

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.

Answer 4

Arithmetic mean or average weighted mean (X)

Question 5

means central position Arranges the ratings in an array from highest to lowest or vice-versa.

Answer 5

Median

Question 6

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

Answer 6

Mode

Question 7

This is used to indicate the chance that researchers are wrong in rejecting the null hypothesis. It is also called the

Answer 7

level of probability or p level

Question 8

the research prediction that is tested

Answer 8

Research Hypothesis

Question 9

a statement of “no difference between the means of two populations

Answer 9

Null hypothesis

Question 10

____ is made when a researcher rejects the null hypothesis when it is true.

Answer 10

type I error

Question 11

A _____ is made when a researcher accepts the null hypothesis when it is false

Answer 11

type II error

Question 12

Researchers generally look for levels of significance ______

Answer 12

equal to or less than .05

Question 13

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

Answer 13

Parametric Tests

Question 14

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

Answer 14

t-test

Question 15

Similar to a t-test out used when there are more than two groups being compared,

Answer 15

Analysis of variance

Question 16

____ and allows a researcher to examine differences is an extension of the t-test in all population means simultaneously ratter than conducting a series of t-tests. It uses variances (rather than means) of groups to calculate a value that reflects the degree of differences in the means

Answer 16

ANOVA

Question 17

is a one-way (i e one independent variable) ANOVA that is comparing four group means

Answer 17

1×4 ANOVA

Question 18

“_____” indicates that there are 3 groups being compared on 2 variables

Answer 18

2x3 ANOVA

Question 19

This is used when there are two or more independent variables being analyzed simultaneously

Answer 19

Factorial Analysis of Variance

Question 20

____ tests are used to uncover specific differences between three or more group means when an analysis of variance is significant

Answer 20

Post hoc

Question 21

_____ is used when the researcher needs to adjust initial group differences statistically on one or more variables that are related to the independent variable but uncontrolled, and to increase the likelihood of finding a significant difference between two group means.

Answer 21

Analysis of covariance (ANCOVA)

Question 22

This is used to investigate problems in which the researcher is interested in studying more than one dependent variable

Answer 22

Multivariate analysis

Question 23

A _________ (sometimes called a distribution free test) is used when a researcher does not assume anything about the underlying distribution

Answer 23

nonparametric tests

Question 24

Nonparametric procedure used when data are in nominal form. It is a way of answering questions about relationship based on frequencies of observations in categories

Answer 24

Chi square

Question 25

_____ a non-parametric test used It is
to measure the and the value r = -1
strength of association between two variables, where the value r = 1 means perfect negative correlation

Answer 25

Spearman rho