Research Methods Ch 5 quiz well
answered graded A+
Lorenzo is studying aggression in children. First, a questionnaire about their own aggression is
administered to the children. Then the children are observed while at play and instances of
aggression are recorded. The results of these two parts of the study are compared. Lorenzo runs
a statistical test to find how consistent the responses are to different wordings of items on the
questionnaire. What type of reliability is he examining?
-test-retest
-interrater
-internal
-construct - correct answer ✔✔internal
Lorenzo is studying aggression in children. First, a questionnaire about their own aggression is
administered to the children. Then the children are observed while at play and instances of
aggression are recorded. The results of these two parts of the study are compared. When two
sets of observations made during the same time period are compared, there is low interrater
reliability. Which of these should not be considered as a possible cause of this?
-The observers were observing two different parts of the play area, one supervised, the other
not.
-Their ratings were not the same for any individual child.
-One or both of the observers require additional training.
-he two observers do not have a clear enough definition of what an act of aggression is. -
correct answer ✔✔Their ratings were not the same for any individual child.
For a trait that is expected to remain stable over time, the researcher expects to get consistent
results each time it is measured. This type of reliability is:
-test-retest
, -interrater
-internal
-parrallel forms - correct answer ✔✔test-retest
What tool is used to check if multiple-item measurement scales have internal reliability?
-r, correlation coefficient
-kappa
-cronbach's alpha
-s, standard deviation - correct answer ✔✔cronbach's alpha
What information can you learn from a scatterplot that you cannot learn from the correlation
coefficient?
-direction of relationship
-values for each pair of measurements
-strength of the relationship - correct answer ✔✔values for each pair of measurements
Which of the following is a physiological measure?
-response to a questionnaire
-speed in solving a puzzle
-grip strength
-ratings by an observer - correct answer ✔✔grip strength
Mendoza et al. (2009) introduced a coin rotation task as a convenient test of motor dexterity. It
involves timed completion of twenty 180° rotations of a nickel using the thumb, index, and
middle fingers. The results from this task are compared with the results of two widely used tests
of motor dexterity: the finger-tapping task and the Grooved Pegboard task. What empirical way
of assessing construct validity is being used?
-face validity
answered graded A+
Lorenzo is studying aggression in children. First, a questionnaire about their own aggression is
administered to the children. Then the children are observed while at play and instances of
aggression are recorded. The results of these two parts of the study are compared. Lorenzo runs
a statistical test to find how consistent the responses are to different wordings of items on the
questionnaire. What type of reliability is he examining?
-test-retest
-interrater
-internal
-construct - correct answer ✔✔internal
Lorenzo is studying aggression in children. First, a questionnaire about their own aggression is
administered to the children. Then the children are observed while at play and instances of
aggression are recorded. The results of these two parts of the study are compared. When two
sets of observations made during the same time period are compared, there is low interrater
reliability. Which of these should not be considered as a possible cause of this?
-The observers were observing two different parts of the play area, one supervised, the other
not.
-Their ratings were not the same for any individual child.
-One or both of the observers require additional training.
-he two observers do not have a clear enough definition of what an act of aggression is. -
correct answer ✔✔Their ratings were not the same for any individual child.
For a trait that is expected to remain stable over time, the researcher expects to get consistent
results each time it is measured. This type of reliability is:
-test-retest
, -interrater
-internal
-parrallel forms - correct answer ✔✔test-retest
What tool is used to check if multiple-item measurement scales have internal reliability?
-r, correlation coefficient
-kappa
-cronbach's alpha
-s, standard deviation - correct answer ✔✔cronbach's alpha
What information can you learn from a scatterplot that you cannot learn from the correlation
coefficient?
-direction of relationship
-values for each pair of measurements
-strength of the relationship - correct answer ✔✔values for each pair of measurements
Which of the following is a physiological measure?
-response to a questionnaire
-speed in solving a puzzle
-grip strength
-ratings by an observer - correct answer ✔✔grip strength
Mendoza et al. (2009) introduced a coin rotation task as a convenient test of motor dexterity. It
involves timed completion of twenty 180° rotations of a nickel using the thumb, index, and
middle fingers. The results from this task are compared with the results of two widely used tests
of motor dexterity: the finger-tapping task and the Grooved Pegboard task. What empirical way
of assessing construct validity is being used?
-face validity
