Can you help me with the following questions?

1) Construct validity

Choose one of our variables (behavior, gender, or "looks") and identify a potential concern related to the construct validity of that variable. (100 words max)

Hint: the definition of construct validity is... the extent to which a measured variable actually measures the concept of interest.

2) Internal validity

Using "behavior" as the predictor variable, identify a potential concern related to the internal validity of that variable. (100 words max)
Hint: the definition of internal validity is... the extent to which changes in the DV (or outcome variable) can be accurately attributed to an IV (or predictor variable).

3) Statistical conclusion validity

Looking at the statistical analyzes that I have provided, identify the next necessary step related to the statistical conclusions I have reached (100 words max). Hint: it has to do with some t-tests.

4) External validityIdentify one aspect of the research that might limit the generalizability of the results. (100 words max)

5) Give me one, brief suggestion for how the observational study could be improved. (100 words max)

Attachment:- LabObservation.rar