Week 1 - Analytic Choices

Question 1

Analytic technique for “Is life satisfaction related to the number of social events attended per month?”

Answer 1

Bivariate correlation

Question 2

Analytic technique for “Does early life adversity predict gut health later in life?”

Answer 2

Bivariate regression

Question 3

Analytic technique for “Do body dysmorphia and vicarious trauma predict fear of childbirth?”

Answer 3

Multiple regression

Question 4

Analytic technique for “Is there a difference in fluid intelligence scores for people with good sleep quality compared to people with poor sleep quality?”

Answer 4

Independent groups t-test

Question 5

Analytic technique for “Is there a difference in empathic tendencies when the same group of participants are assessed in the morning compared to when they are assessed in the evening”.

Answer 5

Repeated measures t-test

Question 6

Analytic technique for “Is there a difference in athletic ability in people from NSW, QLD and VIC?”

Answer 6

One-way between groups ANOVA

Question 7

Analytic technique for “Is there a difference in self-reported resilience before, during and following and physical activity intervention?”

Answer 7

One-way within subjects ANOVA

Question 8

Analytic technique for “Is there a difference in physiological arousal when speaking in front of a group of strangers compared to a group of friends greater for introverted individuals compared to extroverted individuals”

Answer 8

Interaction effect of two-way between groups ANOVA

Question 9

Analytic technique for “When following people across a 12-month period, does the time spend reading and time spent watching tv differ depending on the season?”

Answer 9

Interaction effect of two-way within groups ANOVA

Question 10

Analytic technique for “Following a musical therapy intervention, is there a greater improvement in cognitive functioning for individuals who played an instrument in childhood compared to those who did not”

Answer 10

Interaction effect of two-way mixed ANOVA

Question 11

Analytic technique for “Does confidence in the reliability of a witness predict verdict in a criminal trial?”

Answer 11

Logistic regression

Question 12

Analytic technique for “Does a tendency to make source memory errors predict belief in conspiracy theories once political ideology is accounted for?”

Answer 12

Hierarchical multiple regression

Question 13

Analytic technique for “Is there a difference in a child’s working memory capacity when assessed at age 2 and again at age 4?”

Answer 13

Repeated measures t-test

Question 14

Analytic technique for “How does the allocation of attentional resources differ among men and women depending on a low, moderate and highly distracting environment?”

Answer 14

Interaction effect of a two-way mixed ANOVA

Question 15

Analytic technique for “Does amount of work experience predict disclosure and help-seeking behaviour related to mental health after taking into account age?”

Answer 15

Hierarchical multiple regression

Question 16

Out of research questions and statistical techniques, which is the job and which is the tool?

Answer 16

RQ = job
Stat technique = tool

Question 17

The what guides the choice of what?

Answer 17

The research question guides the choice of the statistical technique.

Question 18

3 analytical techniques that assess the degree of relationship between variables

Answer 18

1. Bivariate correlation
2. Bivariate regression
3. Multiple regression

Question 19

Analytical technique for “Are caffeine intake and reaction time related?”

Answer 19

Bivariate correlation

Question 20

Analytical technique for “Does caffeine predict reaction time?”

Answer 20

Bivariate regression

Question 21

Analytical technique for “Do caffeine intake and age predict reaction time?”

Answer 21

Multiple regression

Question 22

5 types of analytical techniques that look at the significance of group differences

Answer 22

1. Repeated measures t-test
2. Independent samples t-test
3. One-way within subjects ANOVA
4. One-way between subjects ANOVA
5. Factorial ANOVA

Question 23

Analytical technique for “Is reaction time faster in coffee group compared to placebo?”

Answer 23

Independent samples t-test

Question 24

Analytical technique for “Is reaction time faster in the same group of participants when they drink coffee compared to a placebo”

Answer 24

Repeated measures t-test

Question 25

Analytical technique for “Is there a change in reaction time following caffeine consumption?”

Answer 25

Both t-tests are suitable, and it is only when research design is refined based on other considerations (constraints, maximising power etc.) that you are led to specific technique.

Question 26

Analytical technique for “Do reaction time scores differ across groups with different levels of caffeine consumption (e.g., 0mg, 50mg vs. 100mg)”

Answer 26

One-way between groups ANOVA

Question 27

Analytical technique for “Do reaction time scores differ when we give the same group of participants different levels of caffeine (0mg, 50mg, and 100mg)?”

Answer 27

One-way within groups ANOVA

Question 28

Analytical technique for “Does the influence of caffeine consumption on reaction time differ depending on reinforcement type?”

Answer 28

Factorial ANOVA

Question 29

2 most important tools in our toolkit to use if we aren’t familiar with a statistical technique?

Answer 29

1. Conceptual understanding of different types of data and variables.
2. research skills (ability to locate useful resources)

Question 30

What could you do if you needed to identify an appropriate statistical technique (based on certain characteristics of the dataset)?

Answer 30

Look at statistical decision trees

Question 31

Analytical technique for “Do caffeine intake and age predict whether someone is an honours student or not”?

Answer 31

Logistic regression
(DV is categorical)