Our explanations of our own admirable actions are likely to involve situational attributions than our explanations of our own shameful actions. our explanations of our own actions performed long ago are likely to involve dispositional attributions than our explanations of our own very recent actions.

less; more

Explanation:

Situational Attribution:-

It is the tendency of assigning responsibility or cause of a behavior or an action to the outside forces like luck, pressure, etc rather than the international characteristic.

Thus,  

Our explanations of our own admirable actions are less likely to involve situational attributions than our explanations of our own shameful actions.

Dispositional attribution:-

It is the tendency of assigning responsibility or cause of a behavior or an action to the inside forces like moods, attitudes, etc.

Thus,

Our explanations of our own actions performed long ago are more likely to involve dispositional attributions than our explanations of our own very recent actions.