The phrase "a small sized effect on" is not correct in standard written English.
The correct expression would be "a small effect on" or "a small-sized effect on."
Example: "The study found a small effect on the participants' performance after the intervention."
Alternatives: "a minor effect on" or "a slight impact on."
Sub-analyses revealed that self-help interventions had a small-to-medium-sized effect on positive symptoms (d+ = 0.42, 95% CI: 0.13 to 0.72), a small-to-medium-sized effect on negative symptoms (d+ = 0.37, 95% CI: 0.07 to 0.66), and a small-sized effect on outcomes associated with the symptoms of psychosis such as quality of life (d+ = 0.13, 95% CI: 0.02 to 0.24).
It is widely accepted that Cohen's d values of 0.2 – 0.49 denote small sized effects; 0.5 – 0.79 denote medium sized effects; and >0.8 denote large effect sizes.
A small sized switch (1.6 × 3.1 × 0.55 mm3) is successfully realized by patterning silicon structures on a glass wafer.
The strengths of the classification model proposed in this study are: a) small sized support-set, b) small number of patterns, c) interpretability and d) high accuracy on validation.
Capitalizing on the effects of olfactory information on reach-to-grasp movements previously reported [25] we hypothesized that an odour delivered before movement initiation might be able to trigger a motor plan reflecting the size of the object associated with the odour (i.e., power grip for a large sized stimulus vs. precision grip for a small sized stimulus).
Self-help interventions had, on average, a small-to-medium-sized effect on overall symptoms (d+ = 0.33, 95% CI: 0.17 to 0.48).
These differences were not significant t 31) = −1.69, 0.73, 1.94, (all p > 0.05) (Table 1); these values did represent a medium-sized and small-sized effect r =.32,.13 and.33 respectively.
