Explanation from: https://www.youtube.com/watch?v=sVDPJlbGj1I
| Case Study 1 (25 marks) |
|
|
|
|
|
| A
research study was conducted to examine the differences between older and
younger adults |
| on
perceived life satisfaction. A pilot study was conducted to examine this
hypothesis. |
|
| Ten
older adults (over the age of 70) and ten younger adults (between 20 and 30)
were given a life |
| satisfaction
test (known to have high reliability and validity). Scores on the
measuring |
|
| range
from 0 to 60 with high scores indicative of high life satisfaction; low
scores indicative low |
|
|
|
|
|
|
|
|
Older Adults |
Younger Adults |
|
|
|
45 |
|
34 |
|
|
|
|
38 |
|
22 |
|
|
|
|
52 |
|
15 |
|
|
|
|
48 |
|
27 |
|
|
|
|
25 |
|
37 |
|
|
|
|
39 |
|
41 |
|
|
|
|
51 |
|
24 |
|
|
|
|
46 |
|
19 |
|
|
|
|
55 |
|
26 |
|
|
|
|
46 |
|
36 |
|
|
|
|
|
|
|
|
|
|
| | |  |
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
| Case Study 2 (25 Marks) |
|
|
|
|
|
| A
researcher hypothesizes that electrical stimulation of the lateral habernula
will result in a |
| decrease
in food intake ( in this case, chocolate chips) in rats. Rats undergo
stereotaxicsurgery |
| and
an electrode is implanted in the right lateral habenula. Following a ten-day
recovery period, |
| rats (kept at 80 percent body weight) are
tested for the number of chocolate chips consumed |
| during
a 10 minute period of time both with and without electrical stimulation. The
testing conditions |
| are
counter balanced. Compute the appropriate t- test for the data provided
below. |
|
|
|
|
|
|
|
|
|
Stimulation |
|
No stimulation |
|
|
|
|
12 |
|
8 |
|
|
|
|
7 |
|
7 |
|
|
|
|
3 |
|
4 |
|
|
|
|
11 |
|
14 |
|
|
|
|
8 |
|
6 |
|
|
|
|
5 |
|
7 |
|
|
|
|
14 |
|
12 |
|
|
|
|
7 |
|
5 |
|
|
|
|
9 |
|
5 |
|
|
|
|
10 |
|
8 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
