RELIABILITY

Question 1

Reliability

Answer 1

reliability is a measure of consistency.

Question 2

external reliability

Answer 2

extent to which a measure is consistent when repeated.

Question 3

internal reliability

Answer 3

internal consistency of a measure, whether different questioonaires in a same construct are neasuring the same construct.

Question 4

assessing internal reliability

Answer 4

split half method

Question 5

assessing external reliability

Answer 5

test retest
inter observer

Question 6

split half method

Answer 6

1. split the participants into two parts
2. participants complete the both parts
3. test the strength of correlation
4. a string correlation indicates internal reliability

Question 7

inter observer reliability

Answer 7

the extent to which an observer agrees on the observation they record is called inter observer reliabilty.

Question 8

how to improve reliability in behavioural categories

Answer 8

1. need to be operationalised
2. some observers may need more practice so as to respond quickly.

Question 9

test retest reliability

Answer 9

the same test or interview is given to same participant on two occassions to see if same results are obtained

Question 10

assessing reliability for interviews ( inter interviewer reliability)

Answer 10

in interviews, a researcher could assess by comparing answers from one person on a occasion with same interviewer and then with the same person and interviewer a week later.
- or using the same method as with two observers.

Question 11

reliability of experiments

Answer 11

dependent variable in a n experiment is often measured using rating scales or behavioural categories. eg during rutters study on romanian orphan study iq scores were one of the dependent variable they used.

Question 12

improving reliability standarisation

Answer 12

making sure procedures are same every time so as to compare the performance of participants.

Question 13

improving reliability of observation

Answer 13

• providing appropriate training to the observers can improve their accuracy
• pilot studies can be carried out to identify poorly define behavioural categories which can later be operationalised.

Question 14

improving reliability of interviews

Answer 14

• use structured interview rather than unstructured interview
• using a same script for all participants by the interviewer.
• using the same interviewer

Question 15

improving reliability of questionnaires

Answer 15

• use closed questions
• if there is a lready an established questionnaire for what you want to measure, use that instead of creating your own questions.

Question 16

improving reliability of experiments

Answer 16

• use standarised procedures for each participants.
• keep all the conditions same like the evironmental conditions.