Doesn't this just make you want to slash your throat open with a rusty tin lid?

Type A showed the highest mean, with 53.25, while Type B showed a dramatically lower 41.75. The difference between the two is 11.5 which is the biggest difference found between any type personality types. Showing that Type A personalities tend to experience more stress.

Standard deviation of type B personalities is 13.074 which indicates that the data is spread out over a large range of values.
Although the standard deviation for type A personalities is also high at 10.073, it isn’t as high as type B showing that the points are closer to the mean in Type A.

This shows that although type A personalities are more likely to be stressed, they are also more consistent with their moods and the stress levels they experience.

Type B personalities’ levels of stress will tend to differ within the group.

Standard deviation for type AB personalities is 8.226 which is the lowest out of the three meaning that people with type AB personalities tend to experience a relatively collective level of stress.

Whereas type A and Type B personalities’ experience with levels of stress is inconsistent and sporadic, people who aren’t classified into the two extremes of personalities tend to have a more consistent level of stress, with very small numbers of people drifting into the extremes.

The mean for Type AB personalities was, 52.25, which was the second highest of the three.

While it was very close to Type A, with only a 0.7 difference, it was much higher than Type B

standing at a 10.8 difference..

This shows that although Type A personalities are more likely to experience stress, their levels of stress aren’t much higher than Type AB personalities, this can be explained by the fact that people with Type AB personalities share characteristics with Type A personalities that can often be stress-inducing.

Statistics support the theory that people with Type A and Type AB personalities are more likely to experience stress compared to individuals with Type B personalities.

Type A & Type B

P= .059 (n.s.)

Type A & Type AB

P= .844 (n.s.)

The P value is greater than the preset value of alpha on both occasions showing that these results could have been caused by pure statistical accident, taking into consideration that P is an estimate of the probability that the results have occurred by statistical accident, the fact that the results are non-significant means that they lack statistical validity.

In experiments where we are obliged to resort to statistics it is proper procedure to define a level of significance at which a correlation will be deemed to have been proven. It is important to remember that however small the value of P, there is always a finite chance that the result is pure accident.