Hypotheses and statistical tests
a year ago
misswood76
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• Question 1
30 seconds
Q.

There is a difference between the life satisfaction scores (on a self reported scale of 1-10) of those people with over 1000 Instagram followers and those people with less than 50 followers.

directional; requires a one-tailed test

non-directional; requires a two tailed test

• Question 2
30 seconds
Q.

Males are faster (in minutes and seconds) at solving 10 mental arithmetic problems than females.

Directional; one tailed

Non-directional; two tailed

• Question 3
30 seconds
Q.

People with low self esteem (under 5 on a self esteem questionnaire, ranging 0-20) are more likely to verbally criticise an out-group member who loses a task than people with high self-esteem (over 15 on the self esteem questionnaire).

Directional (one tailed)

Non-directional (two tailed)

• Question 4
30 seconds
Q.

There is a correlation between body-image satisfaction (self reported scale of 1-7) and number of Instagram followers for British school girls aged 12-14.

directional (one tailed)

non-directional (two tailed)

• Question 5
30 seconds
Q.

There is a positive correlation between the amount of cortisol detected in a saliva swab and the number of hours spent in day care in toddlers aged 12 months to three years.

directional (one tailed)

non-directional (two tailed)

• Question 6
30 seconds
Q.

The larger the hippocampus (number of pixels on an MRI brain scan) the less mistakes made on a spatial memory task.

directional (one tailed)

non-directional (two tailed)

• Question 7
30 seconds
Q.

Participants observed to help an elderly confederate to cross the road are more likely to also give a donation to a homeless person also played by a confederate.

directional (one tailed)

non-directional (two tailed)

• Question 8
30 seconds
Q.

People get higher scores on a computer game (showing faster reaction times) after watching a three minute violent movie clip than before watching the movie clip.

Directional (one tailed)

Non-Directional (two tailed)

• Question 9
30 seconds
Q.

There is a significant difference in the level of empathic concern of people who have resist orders to harm a stranger compared with those who obey such orders

directional (one tailed)

non-directional (two-tailed)

• Question 10
30 seconds
Q.

When confronted with a spider, there is a correlation between heart rate (beats per minute) and number of sessions of systematic desensitisation attended for people with arachnophobia.