Deck 14: Quantitative Data Analysis

Question 1

Which instrument would one use to assess the reliability of a scale (a set of questions)?

A)Cronbach's alpha.
B)Kendall's tau.
C)Levene's test.
D)Pearson's correlation coefficient.

Answer 1

A

Question 2

Discriminant validity can be determined by means of,amongst others,correlations and factor analyses.

Answer 2

True

Question 3

Chi-square analysis is used when the independent variable is nominal or ordinal.

Answer 3

True

Question 4

By means of chi-square analysis it is not possible to test hypotheses.

Question 5

With what instrument could the predictive validity of a metric scale (a set of questions)best be determined?

A)Cronbach's alpha.
B)A correlation-coefficient.
C)Fisher's r-to-z test.
D)With none of the above mentioned instruments.

Question 6

Mean and median actually are identical concepts.

Question 7

With what instrument could the validity of a scale (a set of questions)best be determined?

A)Cronbach's alpha.
B)Kendall's tau.
C)Levene's test.
D)With none of the above instruments.

Question 8

The Cronbach's alpha of a scale indicates to what extent different items measure the same construct.

Question 9

Computing the Cronbach's alpha is the way to check if the:

A)Measure is valid.
B)Measure is reliable.
C)Null hypothesis is significant.
D)Conceptual model is relevant.

Question 10

An overview of a variable on nominal level can be given by a pie chart.

Question 11

Cronbach's alpha indicates to what extent scale items are correlated to each other?

Question 12

In what way could you best give an overview of ordinal data?

A)By the mean.
B)By cross tables.
C)By the median.
D)By the mode.

Question 13

In what way do the concepts causality and correlation relate to each other?

A)Causality is needed for correlation.
B)Causality is one of the conditions for correlation.
C)Correlation is one of the conditions for causality.
D)Correlation (alone)is enough evidence for causality.

Question 14

A researcher wants to give an overview of the characteristics of the respondents in his sample.How could this researcher best provide insight in the gender of the respondents?

A)By a frequency table and a bar chart.
B)By the mode,median and the standard deviation.
C)By a frequency table and a correlation matrix.
D)By the mean and the variance.

Question 15

Chi-square analysis is used when the independent variable is used when the dependent variable is nominal or ordinal.

Question 16

Fill in the missing text:

A)(1)nominal/ordinal - (2)nominal/ordinal.
B)(1)nominal/ordinal - (2)interval/ratio.
C)(1)interval/ratio - (2)nominal/ordinal.
D)(1)interval/ratio - (2)interval/ratio.

Question 17

Cronbach's alpha and the split-half reliability coefficient are both instruments to determine the reliability of a scale.

Question 18

Chi-square analysis is a suitable technique to determine if the sample is a reflection of the population in terms of access to the internet (access/no access).

Question 19

The mode and the median are always the same value.

Question 20

The closer the Cronbach's alpha is to 1,the higher the reliability of a scale.